NIXIE TUBE CROSS-REFERENCE DATA

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Table Notes

PART
NUMBER
1,2,3		 BRAND(S)  SUBSTITUTES4 VIEW  DIGIT
HEIGHT5		 OVERALL
DIMENSIONS5		 DISPLAYED
SYMBOLS6		 BASE & PINOUT7 OPERATING POTENTIALS8 (D.C. Volts)
CONSTANT / <MULTIPLEXED/PULSED>		 CATHODE CURRENTS8 (mA)
AVG. CONTINUOUS / <PEAK PULSE>		 NOTES
MINIMUM
SUPPLY		 MAXIMUM
IONIZATION		 TYPICAL
MAINTAINING		 MINIMUM TYPICAL MAXIMUM
Unknown Burroughs ?, Tungsram ?         X, (square), (circle), (triangle)               Custom made for NASA use in test and training equipment (and spacecraft?) for primates including chimpanzees and various monkeys. Possible additional symbols including horizontal & vertical bars.
Unknown Burroughs ?   End 15.5mm (0.610")   A, B, M B13B: 1e             Symbols for unknown equipment.
Unknown Harwin     20mm (0.79") 70mm (2.7") X 25mm (0.98") X 28mm (1.1") 0‑9               Incandescent edge-lit lightguide readout.
Various MUD0*   Side 14mm (0.55") 19mm (0.75") dia. X 45.1mm (1.78") tall 1‑8, LH & RH DP's Euro Grid 170 170 140 1.5 2.5 4.5 <12> Nipple top. Reverse viewable. Unusual digit style (OCR font?) Numbers listed here as part numbers are in fact production codes. No other numbers are printed on the tubes. I suspect that these are probably type ZM1012.
Various (incl. 3D4, 3D6, 3G, 3J, 3K, 4A, 4B, 4D, 5C, 6B, 6C, 6F) MUD0X*   Side 14mm (0.55") 19mm (0.75") dia. X 45.1mm (1.78") tall 1‑8, LH & RH DP's Euro Grid 170 170 140 1.5 2.5 4.5 <12> Nipple top. Reverse viewable. Unusual digit style (OCR font?) Numbers listed here as part numbers are in fact production codes. No other numbers are printed on the tubes. I suspect that these are probably type ZM1012.
5L5615 Siemens   End (compact)       SK‑136             Filter coating. Part number uncertain.
9‑CT/10‑6B Futaba   Side   13mm (0.5") dia. X 63.5mm (2.5") long 9‑Digit, segmented numeric readout Wires (both ends)             VFD ? Multiplexed ?
10SG1B2     End N/A   Glow position               Russia/U.S.S.R. 'Dekatron' style glow-transfer decimal counting tube. One known example with 1957 date code marked "PROBATIONARY"
("ОПЫТНАЯ").
11TU7 Tesla G10/241E etc. ? End     0‑9 B12E             Position indicating (and counting?) tube resembling 'Pixie' and 'Dekatron' style tubes.
52GS‑3 ITT   Side   'miniature' +, −, ~, (spiral) Wires             Nipple top.
58‑633A RS Components   Side 15.5mm (0.610") 20mm (0.790") dia. X 40mm (1.575") tall   13 Wires             Filter coating. Nipple top.
58‑GA‑S ITT       25mm (1") tall ?                  
58‑GE‑SH ITT       25mm (1") tall ?                  
58‑GF‑ST ITT       25mm (1") tall ?                  
58‑GRS ITT       25mm (1") tall ?                  
58GSST ITT   Side 13mm (0.5") 13mm (0.51") dia. X 27mm (1.06") tall +, −, ~, (spiral) SK‑207             Nipple top. Thick standoff/spacer.
122P224 Xerox (Burroughs) 1970‑0002, 5031, 5092, 5092A, 6844A, 8037, 8421, 50347, B‑5031, B‑5092, B‑5092‑A, B‑6844A, B‑50347, BD‑302, CK6844A, CK8037, CK8421, CV5278, CV9316, GN‑4, GN‑4A, GR10M, HB‑106, JAN‑6844A, JAN‑CB‑6844A, JAN‑CZ‑6844A, JAN‑8037, JAN‑8421, M2726‑102500, NL‑5092, NL‑6844A, NL‑8037, NL‑8421, NL‑50347, Z520M, Z560M, Z5600M, ZM1020, ZM1020/01, ZM1022 End 15.5mm (0.610") 27.5mm (1.080") dia. X 35mm (1.375") tall 0‑9 B13B: 1 170 170 147 1.5 <1.5> 2.25 <2.5> 3.0 <3.5> Low curved front. Mildly radioactive Krypton-85 added during manufacture to reduce dark effect; labeled with radiation symbol. Identical to B‑5092‑A; manufactured by Burroughs for Xerox with Xerox in‑house part number.
154‑0326‑00 Tektronix B‑5094, NL‑5094 End 7mm (0.275") 25mm (1") dia. M, µ, N [left]
A, S, V [right]		 B13B: 1d             Symbols for test equipment (side by side).
238‑002‑9‑001 B&K Precision (Babcock, Beckman, Sperry) 411‑286, 411‑0286, 411‑295, 411‑0295, 1970‑0066, EX‑352, SP‑352 Special 14mm (0.550")   2‑Digit, 7 segment, RH DP's 20 Pins, special arrangement             Planar neon gas discharge 'Panaplex' readout. Separate anodes allow single-digit multiplexing. Used in B&K 282 DMM, Data Precision 3500 VOM, ESE ES‑124L clock, Heathkit GC‑1005, GC‑1092A & GC‑2005 clocks, and Heathkit HW‑104, SB‑104 & SB‑104A radio transceivers.
238‑003‑9‑001 B&K Precision (Babcock, Beckman, Sperry) SP‑351 Special 14mm (0.55")   +, −, 1½‑Digit, 7 segment, RH DP's ?? Pins, special arrangement             Planar neon gas discharge 'Panaplex' readout. Used in B&K 282 DMM and Data Precision 3500 VOM.
276‑048 Archer   Side     0‑9, LH & RH DP's Wires             Nipple top.
276‑049 Archer Y‑1938, Y‑1939 Side 14.5mm (0.57") 22mm (0.875") dia. X 51mm (2.000") tall 7 Segment, RH DP 10 pins, circle w/ pin #10 slightly inset. Pin #10 to rear. filament: 1.5 VAC, segments: +27 VDC filament: 35, segments: 0.5 filament: 40, segments: 1.0 filament: 45, segments: 1.5 VFD. Lack of grid makes multiplexing difficult. Nipple top. With or without filter coating, both versions under the same Archer part number.
276‑063 Archer   Side     7 Segment, RH DP Pins             Vacuum Fluorescent Display. Nipple top.
283CQAD7971 Ultronic 7971, B‑7971, NL‑7971 Side 63.5mm (2.5") 31mm (2") dia. X 127mm (5") tall 15 Segment Alphanumeric, incl. underscore SK‑137             Nipple in base.
340‑0004 Wang 8754, 4200840, CK8754, NL‑840 Side 15.5mm (0.610") 19.0mm (0.750") dia. X 52.0mm (2.050") tall 0‑9 RTS‑11: 1 170 170 147 1.5 2.5 3.0 <3.5> Nipple top.
340‑0005 Wang CK1907, NL‑843 Side 15.5mm (0.610") nominal 19.0mm (0.750") dia. X 52.0mm (2.050") tall +, − RTS‑11: 1d 170 170 147 1.5 2.5 3.0 <3.5> Nipple top.
340‑0010 Wang   Side     +, − SK‑207 ?             Nipple top.
340‑0011 Wang   Side     0‑9 SK‑207             Nipple top.
411‑264 Heathkit (National Electronics) 411‑0264, B‑5859S, NL‑950S, NL‑1220 Side     0‑9, LH & RH DP's SK‑207: 1              
411‑0264 Heathkit (National Electronics) 411‑264, B‑5859S, NL‑950S, NL‑1220 Side     0‑9, LH & RH DP's SK‑207: 1              
411‑269 Heathkit 411‑0269, DA2110, DR2110                        
411‑0269 Heathkit 411‑269, DA2110, DR2110                        
411‑281 Heathkit (Babcock, Beckman, Sperry) 411‑0281, SP‑733 Special     3‑Digit               Planar neon gas discharge 'Panaplex' readout. Used in Heathkit IC-2008A calculator.
411‑0281 Heathkit (Babcock, Beckman, Sperry) 411‑281, SP‑733 Special     3‑Digit               Planar neon gas discharge 'Panaplex' readout. Used in Heathkit IC-2008A calculator.
411‑284 Heathkit (Amperex, Dario, Mullard, National Electronics, Philips, Valvo) 411‑0284, 411284, ZM1000, ZM1000E, ZM1000R Side 14mm (0.55") 19mm (0.75") dia. X 49.5mm (1.95") tall 0‑9, LH DP Euro Grid: 1 170 170 140 1.5 2.5 4.5 <12> Nipple top. Used in Heathkit IM‑1202 Digital Multimeter.
411‑0284 Heathkit (Amperex, Dario, Mullard, National Electronics, Philips, Valvo) 411‑284, 411284, ZM1000, ZM1000E, ZM1000R Side 14mm (0.55") 19mm (0.75") dia. X 49.5mm (1.95") tall 0‑9, LH DP Euro Grid: 1 170 170 140 1.5 2.5 4.5 <12> Nipple top. Used in Heathkit IM‑1202 Digital Multimeter.
411‑286 Heathkit (Babcock, Beckman, Sperry) 238‑002‑9‑001, 411‑0286, 411‑295, 411‑0295, 1970‑0066, EX‑352, SP‑352 Special 14mm (0.550")   2‑Digit, 7 segment, RH DP's 20 Pins, special arrangement             Planar neon gas discharge 'Panaplex' readout. Separate anodes allow single-digit multiplexing. Used in Heathkit GC‑1005, GC‑1092A & GC‑2005 clocks, and Heathkit HW‑104, SB‑104 & SB‑104A radio transceivers.
411‑0286 Heathkit (Babcock, Beckman, Sperry) 238‑002‑9‑001, 411‑286, 411‑295, 411‑0295, 1970‑0066, EX‑352, SP‑352 Special 14mm (0.550")   2‑Digit, 7 segment, RH DP's 20 Pins, special arrangement             Planar neon gas discharge 'Panaplex' readout. Separate anodes allow single-digit multiplexing. Used in Heathkit GC‑1005, GC‑1092A & GC‑2005 clocks, and Heathkit HW‑104, SB‑104 & SB‑104A radio transceivers.
411‑290 Heathkit (Babcock, Beckman, Sperry) 411‑0290, HB‑353, SP‑353 Special 14mm (0.55")   3‑Digit, 7 segment, RH DP's 30 Pins, special arrangement             Planar neon gas discharge 'Panaplex' readout. Separate anodes allow single-digit multiplexing. Used in Heathkit IC‑2008A calculator.
411‑0290 Heathkit (Babcock, Beckman, Sperry) 411‑290, HB‑353, SP‑353 Special 14mm (0.55")   3‑Digit, 7 segment, RH DP's 30 Pins, special arrangement             Planar neon gas discharge 'Panaplex' readout. Separate anodes allow single-digit multiplexing. Used in Heathkit IC‑2008A calculator.
411‑295 Heathkit (Babcock, Beckman, Sperry) 238‑002‑9‑001, 411‑286, 411‑0286, 411‑0295, 1970‑0066, EX‑352, SP‑352 Special 14mm (0.550")   2‑Digit, 7 segment, RH DP's 20 Pins, special arrangement             Planar neon gas discharge 'Panaplex' readout. Separate anodes allow single-digit multiplexing. Used in Heathkit GC‑1005, GC‑1092A & GC‑2005 clocks, and Heathkit HW‑104, SB‑104 & SB‑104A radio transceivers.
411‑0295 Heathkit (Babcock, Beckman, Sperry) 238‑002‑9‑001, 411‑286, 411‑0286, 411‑295, 1970‑0066, EX‑352, SP‑352 Special 14mm (0.550")   2‑Digit, 7 segment, RH DP's 20 Pins, special arrangement             Planar neon gas discharge 'Panaplex' readout. Separate anodes allow single-digit multiplexing. Used in Heathkit GC‑1005, GC‑1092A & GC‑2005 clocks, and Heathkit HW‑104, SB‑104 & SB‑104A radio transceivers.
1970‑0002 Hewlett-Packard 122P224, 5031, 5092, 5092A, 6844A, 8037, 8421, 50347, B‑5031, B‑5092, B‑5092A, B‑6844A, B‑50347, BD‑302, CK6844A, CK8037, CK8421, CV5278, CV9316, GN‑4, GN‑4A, GR10M, HB‑106, JAN‑6844A, JAN‑CB‑6844A, JAN‑CZ‑6844A, JAN‑8037, JAN‑8421, M2726‑102500, NL‑5092, NL‑6844A, NL‑8037, NL‑8421, NL‑50347, Z520M, Z560M, Z5600M, ZM1020, ZM1020/01, ZM1022 End 15.5mm (0.610") 27.5mm (1.080") dia. X 35mm (1.375") tall 0‑9 B13B: 1 170 170 147 1.5 <1.5> 2.25 <2.5> 3.0 <3.5> Low curved front.
1970‑0009 Hewlett-Packard 5991, 8422, 4205991, B‑5961, B‑5991, B‑8422, B‑59917, B‑59917A, JAN‑8422, KS‑19944,L1, NL‑5961, NL‑5991, NL‑8422, ZM1100, ZM1102, ZM1180, ZM1182 End (compact) 15.5mm (0.610") 20mm (0.790") X 26mm (1.020") X 28.5mm (1.120") tall 0‑9 SK‑136: 1 170 170 120 1.5 2.25 3.0  
1970‑0012 Hewlett-Packard B‑5992, NL‑5992 End (compact) 15.5mm (0.610")   +, − SK‑136: 1b              
1970‑0013 Hewlett-Packard B‑5032 ?, B‑5992 ? End (compact) 15.5mm (0.610") nominal   +, − SK‑136: 1b              
1970‑0015 Hewlett-Packard, National Electronics B‑59936 ? End (compact) 15.5mm (0.610") nominal   +, − [front/center]
A, K, M [top]
C, Ω [bottom]		 SK‑136: 1e             Symbols for AC/DC VOM. Odd configuration: there are full-sized '+' & '−' symbols toward the front of the tube, and two stacks of smaller symbols in over/under arrangement behind them.
1970‑0016 Hewlett-Packard, National Electronics 1970‑0009, 5991, 8422, 4205991, B‑5961, B‑5991, B‑8422, B‑59917, B‑59917A, JAN‑8422, KS‑19944,L1, NL‑5961, NL‑5991, NL‑8422, ZM1100, ZM1102, ZM1180, ZM1182 End (compact) 15.5mm (0.610") 20.5mm (0.800") X 26mm (1.020") X 34.5mm (1.358") tall 0‑9 SK‑136: 1 170 170 130 2.5 3.3 4.5 Mercury-free design intended for use in chemically restricted environments.
1970‑0017 Hewlett-Packard, National Electronics B‑5440, B‑5440A, NL‑5440, NL‑5440A Side 15.5mm (0.61") 19mm (0.75") dia. X 52mm (2.05") tall 0‑9 SK‑182: 1 170 170 145 1.5 2.5 3.0 <3.5> Nipple top.
1970‑0018 Hewlett-Packard, National Electronics 1970‑0035, B‑5441, B‑5441A, B‑5441X ?, NL‑5441, NL‑5441A, NL‑54417 ? Side 15.5mm (0.61") 19mm (0.75") dia. X 52mm (2.05") tall 0‑9, LH & RH DP's SK‑182: 1a 170 170 142 1.5 2.5 (DP 0.5) 3.0 <3.5> (DP 0.7) Nipple top.
1970‑0025 Hewlett-Packard B‑5560, NL‑918 Side Inverted 13.2mm (0.520") 15.2mm (0.600") dia. X 35.3mm (1.390") tall 0‑9 SK‑116: 2 170 170 138   1.5 - 2.0 2.5 Domed smooth bottom.
1970‑0028 Hewlett-Packard B‑5445, NL‑5445 Side Inverted 15.5mm (0.61") 19mm (0.75") dia. X 52mm (2.05") tall 0‑9 SK‑182: 1 170 170 145 1.5 2.5 3.0 <3.5> Nipple bottom.
1970‑0030 Hewlett-Packard, Burroughs B‑5857, B‑5857S, B‑5867, B‑5867S Side Inverted     0‑9 SK‑207: 1b             Nipple bottom.
1970‑0032 Hewlett-Packard B‑5448, B‑5448A, NL‑987 Side 15.5mm (0.61") nominal 19mm (0.75") dia. X 52mm (2.05") tall +, −, (OverLoad) SK‑182: 1c 170 170 145 1.5 2.5 3.0 <3.5> "OverLoad" symbol is capital "O" superimposed with subscript capital "L". Nipple top.
1970‑0035 Hewlett-Packard 1970‑0018, B‑5441, B‑5441A, B‑5441X ?, NL‑5441, NL‑5441A, NL‑54417 ? Side 15.5mm (0.61") 19mm (0.75") dia. X 44.5mm (1.75") tall 0‑9, LH & RH DP's SK‑182: 1a 170 170 142 2.0 2.3 (DP 0.5) 3.5 (DP 0.7) Smooth top.
1970‑0037 Hewlett-Packard B‑5450, NL‑988 Side 8mm (0.315") 19mm (0.75") dia. X 52mm (2.05") tall M [top]
V [bottom]		 SK‑182 170 170 145       Symbols for test equipment (over/under). Nipple top.
1970‑0038 Hewlett-Packard B‑5449 ?, NL‑989 Side 8mm (0.315") 19mm (0.75") dia. X 52mm (2.05") tall A, K, M [top]
C, V, Ω [bottom]		 SK‑182 170 170 145       Symbols for test equipment (over/under). Nipple top.
1970‑0041 Hewlett-Packard                          
1970‑0042 Hewlett-Packard, National Electronics 5870ST, B‑5870ST, NL‑5870ST Side     0‑9, LH & RH DP's SK‑207: 1a             Nipple top.
1970‑0046 Hewlett-Packard NL‑1265 Side 15.5mm (0.610") 19mm (0.750") dia. X 44.5mm (1.750") tall 0‑9, LH DP & RH comma SK‑182: 1d 170 170 142 2.0 2.3 (DP & comma 0.5) 3.5 (DP & comma 0.7) Smooth top. Rated life: 200k hrs.
1970‑0047 Hewlett-Packard, National Electronics B‑5442, B‑5442A, NL‑5442, NL‑5442A Side 15.5mm (0.61") nominal 19mm (0.75") dia. X 44.5mm (1.75") tall +, − SK‑182: 1b 170 170 145 1.5 2.3 3.0 <3.5> Smooth top.
1970‑0054 Hewlett-Packard, National Electronics 5870S Side     0‑9, ? DP ? SK‑207             Nipple top.
1970‑0058 Hewlett-Packard                          
1970‑0062 Hewlett-Packard                          
1970‑0065 Hewlett-Packard                          
1970‑0066 Hewlett-Packard (Babcock, Beckman, Sperry) 238‑002‑9‑001, 411‑286, 411‑0286, 411‑295, 411‑0295, EX‑352, SP‑352 Special 14mm (0.550")   2‑Digit, 7 segment, RH DP's 20 Pins, special arrangement             Planar neon gas discharge 'Panaplex' readout. Separate anodes allow single-digit multiplexing.
1970‑0067 Hewlett-Packard (Babcock, Beckman, Sperry) 238‑003‑9‑001, HB‑351, SP‑351 Special 14mm (0.55")   +, −, 1½‑Digit, 7 segment, RH DP's ?? Pins, special arrangement             Planar neon gas discharge 'Panaplex' readout.
1970‑0071 Hewlett-Packard (Burroughs, Vishay) 2215804, BR16252 Special 0.250"   16‑Digit, 7 segment numeric Special             Neon 'Panaplex II' flat panel readout.
1970‑0075 Hewlett-Packard                          
1970‑0601 Hewlett-Packard                          
3015‑F     Special 9mm (0.36") 22mm (0.87") X 11.5mm (0.45") X 9mm (0.36") tall 7 Segment, RH DP 16‑Pin DIP, pins 1 & 16 at top: Common=2; 5; 10; 12 & 13, a=15, b=14, c=11, d=7, e=6, f=3, g=4, dp=9 4.5   5.0   8.0 per seg. @ 5.0v   'Minitron' incandescent filament readout.
3015‑G     Special 9mm (0.36") 22mm (0.87") X 11.5mm (0.45") X 9mm (0.36") tall +, −, 1 (segments), RH DP 16‑Pin DIP, pins 1 & 16 at top: Common=6; 7; 9; 12 & 13, − =4 & 5, l(vertical stroke of "+")=2 & 3, 1[top]=14 & 15, 1[bottom]=11, dp=10 4.5   5.0   8.0 per seg. @ 5.0v   'Minitron' incandescent filament readout.
3421   5302                        
4021 Burroughs 4032, 4041, 5810, 7009, 7977, 8502, B‑4021, B‑4021AL, B‑4021G, B‑4021L, B‑4032, B‑4041, B‑4081, B‑5810, B‑7009, BD‑200S, BD‑244, JAN‑7009, JAN‑7977, JAN‑8502, NL‑4021, NL‑4021A, NL‑4032, NL‑4041, NL‑7009, NL‑7977, NL‑8502, ZM1120, ZM1122 End 7.75mm (0.305") 16.5mm (0.650") dia. X 23.5mm (0.925") tall 0‑9 SK‑116: 1 120 120 102 0.7 <0.7> 1.0 1.4 <2.0> Low voltage design. High domed front.
4031 National Electronics B‑4031, NL‑4031 End 8mm (0.310") 17mm (0.680") dia. X 24mm (0.940") tall +, − SK‑116: 1a 170 170 154 0.7 <0.7> 1.0 1.4 <2.0> High domed front. Silicone rubber outer sleeve (thickness included in tube diameter). Symbol tube complementary to 4032, also matches 5810 & 7977 types in size & electrical characteristics.
4032 Burroughs 4021, 4041, 5810, 7009, 7977, 8502, B‑4021, B‑4021AL, B‑4021G, B‑4021L, B‑4032, B‑4041, B‑4081, B‑5810, B‑7009, BD‑200S, BD‑244, JAN‑7009, JAN‑7977, JAN‑8502, NL‑4021, NL‑4021A, NL‑4032, NL‑4041, NL‑7009, NL‑7977, NL‑8502, ZM1120, ZM1122 End 7.75mm (0.305") 17mm (0.680") dia. X 24mm (0.940") tall 0‑9 SK‑116: 1 170 170 154 0.7 <0.7> 1.0 1.4 <2.0> High domed front. Silicone rubber outer sleeve (thickness included in tube diameter). Ultra long life.
4038 Burroughs, National Electronics B‑4038, NL‑4038 End 7.75mm (0.305") 17mm (0.680") dia. X 27mm (1.063") tall A, E, G, H, J, K, L, M SK‑116: 1b 170 170 145 0.7 <0.7> 1.0 1.4 <2.0> High domed front. Narrow viewing angle. Silicone rubber outer sleeve (thickness included in tube diameter).
4041 Burroughs 4021, 4032, 5810, 7009, 7977, 8502, B‑4021, B‑4021AL, B‑4021G, B‑4021L, B‑4032, B‑4041, B‑4081, B‑5810, B‑7009, BD‑200S, BD‑244, JAN‑7009, JAN‑7977, JAN‑8502, NL‑4021, NL‑4021A, NL‑4032, NL‑4041, NL‑7009, NL‑7977, NL‑8502, ZM1120, ZM1122 End 7.75mm (0.305") 16.5mm (0.650") dia. X 23.5mm (0.925") tall 0‑9 SK‑116: 1 170 170 154 0.7 <0.7> 1.0 1.2 <2.0>  
5031 Burroughs 122P224, 1970‑0002, 5037, 5092, 5092A, 6844A, 8037, 8421, 50347, B‑5031, B‑5037, B‑5092, B‑5092A, B‑6844A, B‑50347, BD‑302, CK6844A, CK8037, CV5278, CV9316, GN‑4, GN‑4A, GR10M, HB‑106, JAN‑6844A, JAN‑CB‑6844A, JAN‑CZ‑6844A, JAN‑8037, JAN‑8421, M2726‑102500, NL‑5092, NL‑8037, NL‑8421, NL‑50347, Z520M, Z560M, Z5600M, ZM1020, ZM1020/01, ZM1022 End 15.5mm (0.610") 27.5mm (1.080") dia. X 35mm (1.375") tall 0‑9 B13B: 1 170 170 147 1.5 <1.5> 2.25 <2.5> 3.0 <3.5> High domed front.
5037 Burroughs 122P224, 1970‑0002, 5031, 5092, 5092A, 6844A, 8037, 8421, 50347, B‑5031, B‑5037, B‑5092, B‑5092A, B‑6844A, B‑50347, BD‑302, CK6844A, CK8037, CV5278, CV9316, GN‑4, GN‑4A, GR10M, HB‑106, JAN‑6844A, JAN‑CB‑6844A, JAN‑CZ‑6844A, JAN‑8037, JAN‑8421, M2726‑102500, NL‑5092, NL‑8037, NL‑8421, NL‑50347, Z520M, Z560M, Z5600M, ZM1020, ZM1020/01, ZM1022 End 15.5mm (0.610") 27.5mm (1.080") dia. X 35mm (1.375") tall 0‑9 B13B: 1 170 170 147 1.5 <1.5> 2.25 <2.5> 3.0 <3.5> High domed or low curved front.
5092 Burroughs 122P224, 1970‑0002, 5031, 5092A, 6844A, 8037, 8421, 50347, B‑5031, B‑5092, B‑5092A, B‑6844A, B‑50347, BD‑302, CK6844A, CK8037, CK8421, CV5278, CV9316, GN‑4, GN‑4A, GR10M, HB‑106, JAN‑6844A, JAN‑CB‑6844A, JAN‑CZ‑6844A, JAN‑8037, JAN‑8421, M2726‑102500, NL‑5092, NL‑8037, NL‑8421, NL‑50347, Z520M, Z560M, Z5600M, ZM1020, ZM1020/01, ZM1022 End 15.5mm (0.610") 27.5mm (1.080") dia. X 35mm (1.380") tall 0‑9 B13B: 1 170 170 147 1.5 <1.5> 2.25 <2.5> 3.0 <3.5> Ultra-long life. Low curved front.
5092A Burroughs 122P224, 1970‑0002, 5031, 5092, 6844A, 8037, 8421, 50347, B‑5031, B‑5092, B‑5092A, B‑6844A, B‑50347, BD‑302, CK6844A, CK8037, CK8421, CV5278, CV9316, GN‑4, GN‑4A, GR10M, HB‑106, JAN‑6844A, JAN‑CB‑6844A, JAN‑CZ‑6844A, JAN‑8037, JAN‑8421, M2726‑102500, NL‑5092, NL‑8037, NL‑8421, NL‑50347, Z520M, Z560M, Z5600M, ZM1020, ZM1020/01, ZM1022 End 15.5mm (0.610") 27.5mm (1.080") dia. X 35mm (1.380") tall 0‑9 B13B: 1 170 170 147 1.5 <1.5> 2.25 <2.5> 3.0 <3.5> Low curved front. Mildly radioactive Krypton-85 added during manufacture to reduce dark effect; labeled with radiation symbol.
5302   3421                        
5810   4021, 4032, 4041, 7009, 7977, 8502, B‑4021, B‑4021AL, B‑4021G, B‑4021L, B‑4032, B‑4041, B‑4081, B‑5810, B‑7009, BD‑200S, BD‑244, JAN‑7009, JAN‑7977, JAN‑8502, NL‑4021, NL‑4021A, NL‑4032, NL‑4041, NL‑7009, NL‑7977, NL‑8502, ZM1120, ZM1122 End 8mm (0.310") 17mm (0.680") dia. X 24mm (0.940") tall 0‑9 SK‑116: 1 170 170 154 0.7 <0.7> 1.0 1.4 <2.0> High domed front. Silicone rubber outer sleeve (thickness included in tube diameter).
5859CS     Side     0‑9, LH & RH DP's SK‑207: 1              
5863ST             SK‑207              
5870L ITT, National Electronics   Side     0‑9, LH & RH DP's SK‑207: 1a 170 170 140 2.3 3.5 5 Used in Bach Simpson PHM64 Research pH Meter.
5870S ITT, Lorenz, STC 1970‑0042, B‑5870S, B‑5870ST, GR116D, NL‑5870S, NL‑5870ST, ZM1332, ZM1332K Side     0‑9, LH & RH DP's SK‑207: 1a 170 170 140 2.3 3.5 5 Nipple top. Used in Yaesu YC‑355 frequency display.
5870ST Burroughs, ITT, National Electronics 1970‑0042, B‑5870ST, NL‑5870ST Side     0‑9, LH & RH DP's SK‑207: 1a 170 170 140 2.3 3.5 5 Nipple top.
5991 Burroughs 1970‑0009, 8422, 4205991, B‑5961, B‑5991, B‑8422, B‑59917, B‑59917A, JAN‑8422, KS‑19944,L1, NL‑5961, NL‑5991, NL‑8422, ZM1100, ZM1102, ZM1180, ZM1182 End (compact) 15.5mm (0.610") 20mm (0.790") X 26mm (1.020") X 28.5mm (1.120") tall 0‑9 SK‑136: 1 170 170 120 1.5 2.25 3.0  
6000‑92‑0006 IEE BA0006‑P31 End 16mm (0.625") 29mm (1.135") dia. X 66mm (2.60") tall 0‑9 B12C w/ anode button on side of tube, pin 5 at bottom: Anode=Side Button, Filament=5&11, Grid"0"=6, Grid"1"=12, Grid"2"=1, Grid"3"=2, Grid"4"=3, Grid"5"=4, Grid"6"=10, Grid"7"=9, Grid"8"=8, Grid"9"=7 1600   1750 (Filament 1.1)   0.030 (Filament 200)   'nimo' CRT readout using defocused electron beam projected through stencil mask onto phosphor screen. Nipple in base. Manufacturer documented model designation "BA" does not appear on tube.
6021                            
6370 Philips, Valvo CV5106, E1T, S 10 S1 Side N/A 37mm (1.457") dia. X 83mm (3.268") tall Glow position only (labeled) B12A             CRT electron beam decimal counting tube with phosphor screen.
6476 Raytheon, Sylvania 6476/A, CK6476, CV2325, GS10C, GS10C/S, M2465‑402, Z502S End N/A   Glow position B12E: Anode=13, K1=10, K2=9, K3=8, K4=7, K5=6, K6=5, K7=4, K8=3, K9=2, K10=1, Guide1=12, Guide2=11             'Dekatron' style glow-transfer decimal counting/selector tube.
6476/A Raytheon, Sylvania, Westinghouse 6476, CK6476, CV2325, GS10C, GS10C/S, M2465‑402, Z502S End N/A   Glow position B12E: Anode=13, K1=10, K2=9, K3=8, K4=7, K5=6, K6=5, K7=4, K8=3, K9=2, K10=1, Guide1=12, Guide2=11 350           'Dekatron' style glow-transfer decimal counting/selector tube.
6482 Sylvania   End N/A   Glow position K8A: 1 350           'Dekatron' style glow-transfer decimal counting tube.
6700 Burroughs, Haydu B‑6700, CV5277, ET51, JAN‑6700, JAN‑CBSC‑6700 N/A N/A   None B26A             'Beam‑X Switch' crossed-field electron beam decimal counting tube. External magnet.
6701 Burroughs   N/A N/A   None B26A             'Beam‑X Switch' crossed-field electron beam decimal counting tube. External magnet.
6703 Burroughs BD‑301 N/A N/A   None B26A             'Beam‑X Switch' crossed-field electron beam decimal counting tube. External magnet and shield.
6710 Burroughs BX‑1000 N/A N/A   None B26A             'Beam‑X Switch' crossed-field electron beam decimal counting tube. Internal magnet(s).
6712 Burroughs BX‑3000 N/A N/A   None B26A             'Beam‑X Switch' crossed-field electron beam decimal counting tube. Internal magnet(s).
6802 Raytheon, Sylvania CK6802 End N/A 29.5mm (1.16") dia. X 99.75mm (3.93") tall Glow position K8A: 1a 350   191       'Dekatron' style glow-transfer decimal counting tube.
6844A Burroughs, ITT, National Electronics 122P224, 1970‑0002, 5031, 5092, 5092A, 8037, 8421, 50347, B‑5031, B‑5092, B‑5092A, B‑6844A, B‑50347, BD‑302, CK6844A, CK8037, CK8421, CV5278, CV9316, GN‑4, GN‑4A, GR10M, HB‑106, JAN‑6844A, JAN‑CB‑6844A, JAN‑CZ‑6844A, JAN‑8037, JAN‑8421, M2726‑102500, NL‑5092, NL‑8037, NL‑8421, NL‑50347, Z520M, Z560M, Z5600M, ZM1020, ZM1020/01, ZM1022 End 15.5mm (0.610") 27.5mm (1.080") dia. X 35mm (1.375") tall 0‑9 B13B: 1 170 170 135 1.5 <1.5> 2.25 <2.75> 3.0 <4.0> High domed front. Narrow viewing angle.
6845                            
6846 Sylvania   None ? N/A 19mm (0.750") dia. X 44.5mm (1.750") tall. N/A "Miniature Button 7‑Pin" = B7G ? 350           Neon binary glow-transfer counting tube, function similar to "T" flip-flop.
6870S ITT   Side     0‑9, LH & RH DP's ? 14 Wires ?             Nipple top.
6879 Raytheon, Sylvania   End N/A 'miniature' Glow position B7G             'Dekatron' style glow-transfer decimal counting tube. Nipple front.
6909 Raytheon, Sylvania CK6909 End N/A   Glow position K8A: 1a             'Dekatron' style glow-transfer decimal counting tube.
6910 Raytheon CK6910 End N/A   Glow position B12E             'Dekatron' style glow-transfer decimal counting tube.
7009 National Electronics 4021, 4032, 4041, 5810, 7977, 8502, B‑4021, B‑4021AL, B‑4021G, B‑4021L, B‑4032, B‑4041, B‑4081, B‑5810, B‑7009, BD‑200S, BD‑244, JAN‑7009, JAN‑7977, JAN‑8502, NL‑4021, NL‑4021A, NL‑4032, NL‑4041, NL‑7009, NL‑7977, NL‑8502, ZM1120, ZM1122 End 8mm (0.310") 16.5mm (0.650") dia. X 23.5mm (0.925") tall 0‑9 SK‑116: 1 170 170 102 0.7 <0.7> 1.0 1.2 <2.0> High domed front.
7018                            
7031 Burroughs B‑7031 Side 51mm (2.000") 57mm (2.250") dia. X 140mm (5.500") tall 0‑9 B14A: 2, 4, 7, 5, 13, 6, 11, 3, 12, 9, 10 300 300   10.0 13.0 16.0 Ultra long life. Smooth top.
7032 Burroughs B‑7032 Side Inverted 51mm (2.000") 57mm (2.250") dia. X 140mm (5.500") tall 0‑9 B14A: 2, 4, 7, 5, 13, 6, 11, 3, 12, 9, 10 300 300   10.0 13.0 16.0 Smooth bottom. No anode mesh in front of cathodes.
7035                            
7037 Burroughs, National Electronics B‑7037, NL‑7037, Z568M, Z5680M Side 51mm (2.000") 52.5mm (2.065") dia. X 100mm (3.925") tall 0‑9 SK‑137: 2, 4, 9, 7, 17, 8, 14, 3, 16, 12, 13 200 200 135 6 <6> 8 <8> 10 <10> Smooth top.
7108 Wang   Side     0‑9 Pins             Nipple top.
7153 Burroughs, National Electronics 8423, B‑6033, B‑6091, B‑7153, BD‑206, JAN‑8423, NL‑7153, NL‑8423 End 20.5mm (0.808") 34.5mm (1.350") dia. X 38.5mm (1.512") tall 0‑9 B13B: 1 170 170 147 1.5 <1.5> 2.5 <3.0> 4.0 <5.0> Low curved front.
7155 Raytheon, Sylvania   End N/A   Glow position B7G             'Dekatron' style glow-transfer decimal counting tube. Nipple front.
7193 Wang   Side     0‑9 RTS‑11: 1 ?             Nipple top.
7971 Burroughs, National Electronics 283CQAD7971, B‑7971, NL‑7971 Side 63.5mm (2.500") 51mm (2") dia. X 127mm (5") tall 15 Segment Alphanumeric, incl. underscore SK‑137             Nipple in base.
7977 National Electronics 4021, 4032, 4041, 5810, 7009, 8502, B‑4021, B‑4021AL, B‑4021G, B‑4021L, B‑4032, B‑4041, B‑4081, B‑5810, B‑7009, BD‑200S, BD‑244, JAN‑7009, JAN‑7977, JAN‑8502, NL‑4021, NL‑4021A, NL‑4032, NL‑4041, NL‑7009, NL‑7977, NL‑8502, ZM1120, ZM1122 End 8mm (0.310") 17mm (0.680") dia. X 24mm (0.940") tall 0‑9 SK‑116: 1 170 170 154 0.7 <0.7> 1.0 1.4 <2.0> High domed front. Silicone rubber outer sleeve (thickness included in tube diameter). Long life (>200K hrs.)
7978 Raytheon CK7978 End N/A   Glow position B13B             'Dekatron' style glow-transfer decimal counting tube.
8035                           Decade counting tube.
8037 National Electronics 122P224, 1970‑0002, 5031, 5037, 5092, 5092A, 6844A, 8421, 50347, B‑5031, B‑5037, B‑5092, B‑5092A, B‑6844A, B‑50347, BD‑302, CK6844A, CK8037, CV5278, CV9316, GN‑4, GN‑4A, GR10M, HB‑106, JAN‑6844A, JAN‑CB‑6844A, JAN‑CZ‑6844A, JAN‑8037, JAN‑8421, M2726‑102500, NL‑5092, NL‑8037, NL‑8421, NL‑50347, Z520M, Z560M, Z5600M, ZM1020, ZM1020/01, ZM1022 End 15.5mm (0.610") 26mm (1.024") dia. X 28.5mm (1.122") tall 0‑9 B13B: 1 170 170 147 1.5 <1.5> 2.25 <2.5> 3.0 <3.5> High domed or low curved front. Narrow viewing angle.
8286   CV2239, CV5290, VS10G, VS10G/M N/A N/A   None B26A             'Trochotron' crossed-field electron beam decimal counting tube.
8353 Sylvania   End N/A   Glow position B13B             'Dekatron' style glow-transfer decimal counting tube. Nipple in base.
8421 National Electronics, Raytheon 122P224, 1970‑0002, 5031, 5092, 5092A, 6844A, 8037, 50347, B‑5031, B‑5092, B‑5092A, B‑6844A, B‑50347, BD‑302, CK6844A, CK8037, CK8421, CV5278, CV9316, GN‑4, GN‑4A, GR10M, HB‑106, JAN‑6844A, JAN‑CB‑6844A, JAN‑CZ‑6844A, JAN‑8037, JAN‑8421, M2726‑102500, NL‑5092, NL‑8037, NL‑8421, NL‑50347, Z520M, Z560M, Z5600M, ZM1020, ZM1020/01, ZM1022 End 15.5mm (0.610") 27.5mm (1.080") dia. X 35mm (1.380") tall 0‑9 B13B: 1 170 170 147 1.5 <1.5> 2.25 <2.5> 3.0 <3.5> Low curved front.
8422 National Electronics 1970‑0009, 5991, 4205991, B‑5961, B‑5991, B‑8422, B‑59917, B‑59917A, JAN‑8422, KS‑19944,L1, NL‑5961, NL‑5991, NL‑8422, ZM1100, ZM1102, ZM1180, ZM1182 End (compact) 15.5mm (0.610")   0‑9 SK‑136: 1              
8423 Burroughs, National Electronics 7153, B‑6033, B‑6091, B‑7153, BD‑206, JAN‑8423, NL‑7153, NL‑8423 End 20.5mm (0.808") 34.5mm (1.350") dia. X 38.5mm (1.512") tall 0‑9 B13B: 1 170 170 147 1.5 <1.5> 3.0 <3.25> 4.0 <4.5> Low curved front.
8440                            
8453 Amperex Z550M, ZM1050 End 3mm (0.118") 28.5mm (1.12") dia. X 31mm (1.22") tall 0‑9 B13B             Readout (and counting?) tube resembling 'Pixie' style position indicator tube.
8502 National Electronics 4021, 4032, 4041, 5810, 7009, 7977, B‑4021, B‑4021AL, B‑4021G, B‑4021L, B‑4032, B‑4041, B‑4081, B‑5810, B‑7009, BD‑200S, BD‑244, JAN‑7009, JAN‑7977, JAN‑8502, NL‑4021, NL‑4021A, NL‑4032, NL‑4041, NL‑7009, NL‑7977, NL‑8502, ZM1120, ZM1122 End 8mm (0.310") 16.5mm (0.650") dia. X 23.5mm (0.925") tall 0‑9 SK‑116: 1 120 120 102 0.7 <0.7> 1.0 1.4 <2.0> Low voltage design. High domed front.
8601                            
8754 National Electronics 340‑0004, 4200840, CK8754, NL‑840 Side 15.5mm (0.610") 19.0mm (0.750") dia. X 52.0mm (2.050") tall 0‑9 RTS‑11: 1 170 170 147 1.5 2.5 3.0 <3.5> Nipple top.
8843 Sylvania   Side 14.5mm (0.571") 55mm (2.165") tall X 22mm (0.866") dia. 7 Segment, RH DP B9A+             'Flurotron' VFD. Nipple top.
8894 Sylvania   Side 14.5mm (0.571") 55mm (2.165") tall X 22mm (0.866") dia. 7 Segment B9A             'Flurotron' VFD. Nipple top.
50347 Burroughs, National Electronics 122P224, 1970‑0002, 5031, 5092, 5092A, 6844A, 8037, 8421, B‑5031, B‑5092, B‑5092‑A, B‑6844A, B‑50347, BD‑302, CK6844A, CK8037, CK8421, CV5278, CV9316, GN‑4, GN‑4A, GR10M, HB‑106, JAN‑6844A, JAN‑CB‑6844A, JAN‑CZ‑6844A, JAN‑8037, JAN‑8421, M2726‑102500, NL‑5092, NL‑6844A, NL‑8037, NL‑8421, NL‑50347, Z520M, Z560M, Z5600M, ZM1020, ZM1020/01, ZM1022 End 15.5mm (0.610") 27.5mm (1.080") dia. X 35mm (1.380") tall 0‑9 B13B: 1 170 170 135 1.5 <1.5> 2.25 <2.75> 3.0 <4.0> High domed front. Narrow viewing angle.
411284 Heathkit (Amperex, Dario, Mullard, National Electronics, Philips, Valvo) 411‑284, 411‑0284, ZM1000, ZM1000E, ZM1000R Side 14mm (0.55") 19mm (0.75") dia. X 49.5mm (1.95") tall 0‑9, LH DP Euro Grid: 1 170 170 140 1.5 2.5 4.5 <12> Nipple top. Used in Heathkit IM‑1202 Digital Multimeter.
2215804 Burroughs, Vishay 1970‑0071, BR16252 Special 0.250"   16‑Digit, 7 segment numeric Special             Neon 'Panaplex II' flat panel readout.
3080010 Drake B‑5870         SK‑207 170 170 140 2.3 3.5 5  
4200840 Packard Instrument Co. 340‑0004, 8754, CK8754, NL‑840 Side 15.5mm (0.610") 19.0mm (0.750") dia. X 52.0mm (2.050") tall 0‑9 RTS‑11: 1 170 170 147 1.5 2.5 3.0 <3.5> Nipple top.
4200841 Packard Instrument Co. CK1916, NL‑841 Side 15.5mm (0.610") 19mm (0.750") dia. X 52.0mm (2.050") tall 0‑9, LH DP RTS‑11: 1a 170 170 147 1.5 (DP 0.2) 2.5 3.0 <3.5> (DP 0.5) Nipple top.
4205991 Packard Instrument Co. 1970‑0009, 5991, 8422, B‑5961, B‑5991, B‑8422, B‑59917, B‑59917A, JAN‑8422, KS‑19944,L1, NL‑5961, NL‑5991, NL‑8422, ZM1100, ZM1102, ZM1180, ZM1182 End (compact) 15.5mm (0.610")   0‑9 SK‑136: 1              
16851453 Burroughs   Side     0‑9, LH & RH DP's ? SK‑207 ?             Nipple top.
A‑17 Nadler CD47, GR‑411, GR‑414 Side 135mm
(5.31")		 72mm (2.83") dia. X 220mm (8.66") tall 0‑9 B12A: 12, 10, 1, 2, 3, 4, 5, 6, 7, 8, 9 250 250 160 17.5 25 32.5 Monstrous! Re‑boxed Rodan/Okaya CD47/GR‑411.
A101     End N/A 34mm (1.34") dia. X 76mm (2.99") tall Glow position 13 Pin Russian, Anode=8, K0=1, K1=13, K2=12, K3=11, K4=9, K5=7, K6=6, K7=4, K8=3, K9=2, Guide1=5, Guide2=10 450 375-425 170     0.4 Russia/U.S.S.R. 'Dekatron' style glow-transfer decimal counting tube.
AD3 L.M. Ericsson Co.   N/A ? N/A ?   None ?               Crossed-field electron beam decimal counting tube.
B210GH Telefunken XM1000 End 15.5mm (0.610") 20.5mm (0.808") X 27mm (1.063") X 64.5mm (2.54") tall 0‑9, LH & RH DP's SK‑136             Prototype CRT readout using defocused electron beam projected through stencil mask onto phosphor screen.
B‑4021 Burroughs 4021, 4032, 4041, 5810, 7009, 7977, 8502, B‑4021AL, B‑4021G, B‑4021L, B‑4032, B‑4041, B‑4081, B‑5810, B‑7009, BD‑200S, BD‑244, JAN‑7009, JAN‑7977, JAN‑8502, NL‑4021, NL‑4021A, NL‑4032, NL‑4041, NL‑7009, NL‑7977, NL‑8502, ZM1120, ZM1122 End 7.75mm (0.305") 16.5mm (0.650") dia. X 23.5mm (0.925") tall 0‑9 SK‑116: 1 120 120 102 0.7 <0.7> 1.0 1.4 <2.0> Low voltage design. High domed front.
B‑4021AL Burroughs 4021, 4032, 4041, 5810, 7009, 7977, 8502, B‑4021, B‑4021G, B‑4021L, B‑4032, B‑4041, B‑4081, B‑5810, B‑7009, BD‑200S, BD‑244, JAN‑7009, JAN‑7977, JAN‑8502, NL‑4021, NL‑4021A, NL‑4032, NL‑4041, NL‑7009, NL‑7977, NL‑8502, ZM1120, ZM1122 End 7.75mm (0.305") 16.5mm (0.650") dia. X 23.5mm (0.925") tall 0‑9 SK‑116: 1 120 120 102 0.7 <0.7> 1.0 1.4 <2.0> Narrow viewing angle. High domed front.
B‑4021G Burroughs 4021, 4032, 4041, 5810, 7009, 7977, 8502, B‑4021, B‑4021AL, B‑4021L, B‑4032, B‑4041, B‑4081, B‑5810, B‑7009, BD‑200S, BD‑244, JAN‑7009, JAN‑7977, JAN‑8502, NL‑4021, NL‑4021A, NL‑4032, NL‑4041, NL‑7009, NL‑7977, NL‑8502, ZM1120, ZM1122 End 7.75mm (0.305") 16.5mm (0.650") dia. X 23.5mm (0.925") tall 0‑9 SK‑116: 1 120 120 102 0.7 <0.7> 1.0 1.4 <2.0> High domed front.
B‑4021L Burroughs 4021, 4032, 4041, 5810, 7009, 7977, 8502, B‑4021, B‑4021AL, B‑4021G, B‑4032, B‑4041, B‑4081, B‑5810, B‑7009, BD‑200S, BD‑244, JAN‑7009, JAN‑7977, JAN‑8502, NL‑4021, NL‑4021A, NL‑4032, NL‑4041, NL‑7009, NL‑7977, NL‑8502, ZM1120, ZM1122 End 7.75mm (0.305") 16.5mm (0.650") dia. X 23.5mm (0.925") tall 0‑9 SK‑116: 1 120 120 102 0.7 <0.7> 1.0 1.4 <2.0> High domed front.
B‑4022 Burroughs BD‑255     'miniature' +, − SK‑116: 1a              
B‑4024 Burroughs   End   'miniature' 0, 1, 2, 3, M, G SK‑116: 1c              
B‑4028 Burroughs       'miniature' +, − SK‑116: 1a             Low voltage.
B‑4031 Burroughs 4031, NL‑4031 End 7.75mm (0.305") 17mm (0.680") dia. X 24mm (0.940") tall +, − SK‑116: 1a 170 170 154 0.7 <0.7> 1.0 1.4 <2.0> High domed front. Silicone rubber outer sleeve (thickness included in tube diameter). Symbol tube complementary to 4032, also matches 5810 & 7977 types in size & electrical characteristics. "Long life".
B‑4032 Burroughs 4021, 4032, 4041, 5810, 7009, 7977, 8502, B‑4021, B‑4021AL, B‑4021G, B‑4021L, B‑4041, B‑4081, B‑5810, B‑7009, BD‑200S, BD‑244, JAN‑7009, JAN‑7977, JAN‑8502, NL‑4021, NL‑4021A, NL‑4032, NL‑4041, NL‑7009, NL‑7977, NL‑8502, ZM1120, ZM1122 End 7.75mm (0.305") 17mm (0.680") dia. X 24mm (0.940") tall 0‑9 SK‑116: 1 170 170 154 0.7 <0.7> 1.0 1.4 <2.0> High domed front. Silicone rubber outer sleeve (thickness included in tube diameter). Ultra long life.
B‑4038 Burroughs 4038, NL‑4038 End 7.75mm (0.305") 17mm (0.680") dia. X 27mm (1.063") tall A, E, G, H, J, K, L, M SK‑116: 1b 170 170 145 0.7 <0.7> 1.0 1.4 <2.0> High domed front. Narrow viewing angle. Silicone rubber outer sleeve (thickness included in tube diameter).
B‑4041 Burroughs 4021, 4032, 4041, 5810, 7009, 7977, 8502, B‑4021, B‑4021AL, B‑4021G, B‑4021L, B‑4032, B‑4081, B‑5810, B‑7009, BD‑200S, BD‑244, JAN‑7009, JAN‑7977, JAN‑8502, NL‑4021, NL‑4021A, NL‑4032, NL‑4041, NL‑7009, NL‑7977, NL‑8502, ZM1120, ZM1122 End 7.75mm (0.305") 16.5mm (0.650") dia. X 23.5mm (0.925") tall 0‑9 SK‑116: 1 170 170 154 0.7 <0.7> 1.0 1.2 <2.0>  
B‑4081 Burroughs 4021, 4032, 4041, 5810, 7009, 7977, 8502, B‑4021, B‑4021AL, B‑4021G, B‑4021L, B‑4032, B‑4041, B‑5810, B‑7009, BD‑200S, BD‑244, JAN‑7009, JAN‑7977, JAN‑8502, NL‑4021, NL‑4021A, NL‑4032, NL‑4041, NL‑7009, NL‑7977, NL‑8502, ZM1120, ZM1122 End 7.75mm (0.305") 16.5mm (0.650") dia. X 23.5mm (0.925") tall 0‑9 SK‑116: 1 170 170 154 0.7 <0.7> 1.0 1.2 <2.0>  
B‑4088 Burroughs   End     A, E, G, H, J, K, L, M  ? SK‑116: 1b ?             Uncertain if this part number exists or is a mis-read of B-4038.
B‑4991 Burroughs   End     0‑9 ? Wires              
B‑4997 Burroughs   End (compact) 7mm (0.276") ? 11.2mm (0.441") X 15mm (0.591") X 26mm (1.024") tall ? 0‑9 SK‑176 ? (Wires)              
B‑4998 Burroughs NL‑4998 End (compact) 7.75mm (0.305") 12.0mm (0.470") X 16.0mm (0.625") X 25.4mm (1.000") tall 0‑9 SK‑176: 1 170 170 150 1.0 1.35 2.0 <2.5> Complementary types include B‑49982, B‑49989 and B‑49990.
B‑5016 Burroughs B‑5032, B‑50911, BD‑214, NL‑5016, NL‑5032, NL‑50911 End 15.5mm (0.610") 27.5mm (1.080") dia. X 35mm (1.375") tall +, − B13B: 1a 170 170 135 1.5 <1.5> 2.25 <2.75> 3.0 <4.0> High domed front. Narrow viewing angle.
B‑5018 Burroughs BD‑216 End 15.5mm (0.610") 27.5mm (1.080") dia. X 35mm (1.375") tall A, B, C, D, E, F, G, H, J, K B13B 170 170 135 1.5 <1.5> 2.25 <2.75> 3.0 <4.0> High domed front. Narrow viewing angle.
B‑5023 Burroughs   End       Pins (11?), circle w/ key gap              
B‑5025 Burroughs   Side     0‑9 B9A             Bi‑quinary. Nipple top. Mercury-free.
B‑5030 Burroughs NL‑5030, ZM1032 ? Side 15.5mm (0.610") 22.2mm (0.874") dia. X 55.6mm (2.189") tall 0‑9 B9A             Bi‑quinary. Nipple top. One source reports this tube as having inverted display, but all other known Burroughs and National tubes with identical numeric part numbers are functionally equivalent tubes. (NL‑5030 does not have inverted display.)
B‑5031 Burroughs 122P224, 1970‑0002, 5031, 5037, 5092, 5092A, 6844A, 8037, 8421, 50347, B‑5037, B‑5092, B‑5092A, B‑6844A, B‑50347, BD‑302, CK6844A, CK8037, CV5278, CV9316, GN‑4, GN‑4A, GR10M, HB‑106, JAN‑6844A, JAN‑CB‑6844A, JAN‑CZ‑6844A, JAN‑8037, JAN‑8421, M2726‑102500, NL‑5092, NL‑8037, NL‑8421, NL‑50347, Z520M, Z560M, Z5600M, ZM1020, ZM1020/01, ZM1022 End 15.5mm (0.610") 26mm (1.024") dia. X 28.5mm (1.122") tall 0‑9 B13B: 1 170 170 147 1.5 <1.5> 2.25 <2.5> 3.0 <3.5> Ultra long life. High domed front.
B‑5032 Burroughs B‑5016, B‑50911, BD‑214, NL‑5016, NL‑5032, NL‑50911 End     +, − B13B: 1a             "Long life". High domed front.
B‑5037 Burroughs 122P224, 1970‑0002, 5031, 5037, 5092, 5092A, 6844A, 8037, 8421, 50347, B‑5031, B‑5092, B‑5092A, B‑6844A, B‑50347, BD‑302, CK6844A, CK8037, CV5278, CV9316, GN‑4, GN‑4A, GR10M, HB‑106, JAN‑6844A, JAN‑CB‑6844A, JAN‑CZ‑6844A, JAN‑8037, JAN‑8421, M2726‑102500, NL‑5092, NL‑8037, NL‑8421, NL‑50347, Z520M, Z560M, Z5600M, ZM1020, ZM1020/01, ZM1022 End 15.5mm (0.610") 26mm (1.024") dia. X 28.5mm (1.122") tall 0‑9 B13B: 1 170 170 147 1.5 <1.5> 2.25 <2.5> 3.0 <3.5> High domed or low curved front.
B‑5044 Burroughs                          
B‑5051B Burroughs                          
B‑5091 Burroughs                          
B‑5092 Burroughs 122P224, 1970‑0002, 5031, 5092, 5092A, 6844A, 8037, 8421, 50347, B‑5031, B‑5092A, B‑6844A, B‑50347, BD‑302, CK6844A, CK8037, CK8421, CV5278, CV9316, GN‑4, GN‑4A, GR10M, HB‑106, JAN‑6844A, JAN‑CB‑6844A, JAN‑CZ‑6844A, JAN‑8037, JAN‑8421, M2726‑102500, NL‑5092, NL‑8037, NL‑8421, NL‑50347, Z520M, Z560M, Z5600M, ZM1020, ZM1020/01, ZM1022 End 15.5mm (0.610") 27.5mm (1.080") dia. X 35mm (1.380") tall 0‑9 B13B: 1 170 170 147 1.5 <1.5> 2.25 <2.5> 3.0 <3.5> Ultra-long life. Low curved front.
B‑5092‑A Burroughs 122P224, 1970‑0002, 5031, 5092, 6844A, 8037, 8421, 50347, B‑5031, B‑5092, B‑6844A, B‑50347, BD‑302, CK6844A, CK8037, CK8421, CV5278, CV9316, GN‑4, GN‑4A, GR10M, HB‑106, JAN‑6844A, JAN‑CB‑6844A, JAN‑CZ‑6844A, JAN‑8037, JAN‑8421, M2726‑102500, NL‑5092, NL‑8037, NL‑8421, NL‑50347, Z520M, Z560M, Z5600M, ZM1020, ZM1020/01, ZM1022 End 15.5mm (0.610") 27.5mm (1.080") dia. X 35mm (1.380") tall 0‑9 B13B: 1 170 170 147 1.5 <1.5> 2.25 <2.5> 3.0 <3.5> Low curved front. Mildly radioactive Krypton-85 added during manufacture to reduce dark effect; labeled with radiation symbol.
B‑5094 Burroughs 154‑0326‑00, NL‑5094 End 7mm (0.275") 25mm (1") dia. M, µ, N [left]
A, S, V [right]		 B13B: 1d             Symbols for test equipment (side by side).
B‑5440 Burroughs 1970‑0017, B‑5440A, NL‑5440, NL‑5440A Side 15.5mm (0.610") 19mm (0.750") dia. X 52mm (2.050") tall 0‑9 SK‑182: 1 170 170 145 1.5 2.5 3.0 <3.5> Nipple top. Rated life: 200k hrs.
B‑5440A Burroughs 1970‑0017, B‑5440, NL‑5440, NL‑5440A Side 15.5mm (0.610") 19mm (0.750") dia. X 44.5mm (1.750") tall 0‑9 SK‑182: 1 170 170 145 1.5 2.5 3.0 <3.5> Smooth top. Rated life: 200k hrs.
B‑5441 Burroughs 1970‑0018, 1970‑0035, B‑5441A, B‑5441X ?, NL‑5441, NL‑5441A, NL‑54417 ? Side 15.5mm (0.610") 19mm (0.750") dia. X 52mm (2.050") tall 0‑9, LH & RH DP's SK‑182: 1a 170 170 142 1.5 2.5 (DP 0.5) 3.0 <3.5> (DP 0.7) Nipple top. Rated life: 200k hrs.
B‑5441A Burroughs 1970‑0018, 1970‑0035, B‑5441, B‑5441X ?, NL‑5441, NL‑5441A, NL‑54417 ? Side 15.5mm (0.610") 19mm (0.750") dia. X 44.5mm (1.750") tall 0‑9, LH & RH DP's SK‑182: 1a 170 170 142 2.0 2.3 (DP 0.5) 3.5 (DP 0.7) Smooth top. Rated life: 200k hrs.
B‑5441X Burroughs 1970‑0018 ?, 1970‑0035 ?, B‑5441 ?, B‑5441A ?, NL‑5441 ?, NL‑5441A ?, NL‑54417 ? Side 15.5mm (0.61") 19mm (0.75") dia. X 52mm (2.05") tall 0‑9, LH & RH DP's SK‑182: 1a 170 170 142 1.5 2.5 (DP 0.5) 3.0 <3.5> (DP 0.7) Nipple top.
B‑5442 Burroughs 1970‑0047, B‑5442A, NL‑5442, NL‑5442A Side 15.5mm (0.610") nominal 19mm (0.750") dia. X 52mm (2.050") tall +, − SK‑182: 1b 170 170 145 1.5 2.3 3.0 <3.5> Nipple top. Sign tube complementary to B‑5440 and B‑5441. Rated life: 200k hrs.
B‑5442A Burroughs 1970‑0047, B‑5442, NL‑5442, NL‑5442A Side 15.5mm (0.610") nominal 19mm (0.750") dia. X 44.5mm (1.750") tall +, − SK‑182: 1b 170 170 145 1.5 2.3 3.0 <3.5> Smooth top. Sign tube complementary to B‑5440A and B‑5441A. Rated life: 200k hrs.
B‑5445 Burroughs, Westinghouse 1970‑0028, NL‑5445 Side Inverted 15.5mm (0.61") 19mm (0.75") dia. X 52mm (2.05") tall 0‑9 SK‑182: 1 170 170 145 1.5 2.5 3.0 <3.5> Nipple bottom.
B‑5448 Burroughs B‑5448A, 1970‑0032, NL‑987 Side 15.5mm (0.610") nominal 19mm (0.750") dia. X 52mm (2.050") tall +, −, (OverLoad) SK‑182: 1c 170 170 145 1.5 2.5 3.0 <3.5> "OverLoad" symbol is capital "O" superimposed with subscript capital "L". Nipple top.
B‑5448A Burroughs 1970‑0032, B‑5448, NL‑987 Side 15.5mm (0.610") nominal 19mm (0.750") dia. X 44.5mm (1.750") tall +, −, (OverLoad) SK‑182: 1c 170 170 145 1.5 2.5 3.0 <3.5> "OverLoad" symbol is capital "O" superimposed with subscript capital "L". Smooth top.
B‑5449 Burroughs 1970‑0038 ?, NL‑989 ? Side 8mm (0.315") 19mm (0.75") dia. X 52mm (2.05") tall A, K, M [top]
C, V, Ω [bottom] ?		 SK‑182 170 170 145       Symbols for test equipment (over/under). Nipple top.
B‑5450 Burroughs 1970‑0037, NL‑988 Side 8mm (0.315") 19mm (0.75") dia. X 52mm (2.05") tall M [top]
V [bottom]		 SK‑182 170 170 145       Symbols for test equipment (over/under). Nipple top.
B‑5456 Burroughs                          
B‑5540 Burroughs                          
B‑5560 Burroughs 1970‑0025, NL‑918 Side Inverted 13.2mm (0.520") 15.2mm (0.600") dia. X 35.3mm (1.390") tall 0‑9 SK‑116: 2 170 170 138   1.5 - 2.0 2.5 Domed smooth bottom.
B‑5692 Burroughs                         ???
B‑5693 Burroughs                         ???
B‑5750 Burroughs NL‑950 Side 13mm (0.5")   0‑9, LH & RH DP's SK‑207: 1a             Nipple top.
B‑5750S Burroughs NL‑950 Side 13mm (0.5") 38mm (1.5") tall 0‑9, LH & RH DP's SK‑207: 1a             Nipple top.
B‑5755 Burroughs, JRC   Side 13mm (0.512") 13mm (0.512") dia. X 27mm (1.063") tall 0‑9, LH & RH DP's SK‑207 (38mm long wires)             Nipple top. Designed for multiplexing. Used in Monroe 620 calculator.
B‑5755R Burroughs   Side 13mm (0.512") 13mm (0.512") dia. X 27mm (1.063") tall 0‑9, LH & RH DP's SK‑207             Nipple top.
B‑5853 Burroughs, JRC B‑5853S, B‑5853‑S1, B‑5853ST, NL‑5853, NL‑5853S, NL‑5853ST, ZM1336, ZM1336K Side 13mm (0.512") 13mm (0.512") dia. X 34mm (1.34") tall 0‑9, LH & RH DP's SK‑207: 1a             Nipple top.
B‑5853S Burroughs, JRC B‑5853, B‑5853‑S1, B‑5853ST, NL‑5853, NL‑5853S, NL‑5853ST, ZM1336, ZM1336K Side 13mm (0.512") 13mm (0.512") dia. X 34mm (1.34") tall 0‑9, LH & RH DP's SK‑207: 1a             Nipple top. "S" suffix indicates pre-cut wire leads.
B‑5853‑SI Burroughs B‑5853, B‑5853‑S, B‑5853ST, NL‑5853, NL‑5853S, NL‑5853ST, ZM1336, ZM1336K Side 13mm (0.512") 13mm (0.512") dia. X 34mm (1.34") tall 0‑9, LH & RH DP's SK‑207: 1a             Nipple top. "S" suffix indicates pre-cut wire leads. "I" suffix indicates inclined standoff/spacer (tubes lean forward about 30°).
B‑5853ST Burroughs B‑5853, B‑5853‑S, B‑5853‑S1, NL‑5853, NL‑5853S, NL‑5853ST, ZM1336, ZM1336K Side 13mm (0.512") 13mm (0.512") dia. X 34mm (1.34") tall 0‑9, LH & RH DP's SK‑207: 1a             Nipple top.
B‑5855 Burroughs   Side     0‑9, LH & RH DP's SK‑207: 1              
B‑5855ST Burroughs   Side     0‑9, LH & RH DP's SK‑207: 1a              
B‑5856S Burroughs   Side   1 1/4" tall ? +, − SK‑207: 1c             Nipple top.
B‑5857 Burroughs 1970‑0030, B‑5857S, B‑5867, B‑5867S Side Inverted     0‑9 SK‑207: 1b             Nipple bottom.
B‑5857S Burroughs 1970‑0030, B‑5857, B‑5867, B‑5867S Side Inverted     0‑9 SK‑207: 1b             Nipple bottom.
B‑5859A Burroughs   Side     0‑9, LH & RH DP's SK‑207: 1              
B‑5859CS Burroughs   Side     0‑9, LH & RH DP's SK‑207: 1             Nipple top.
B‑5859S Burroughs 411‑264, 411‑0264, NL‑950S, NL‑1220 Side     0‑9, LH & RH DP's SK‑207: 1             Nipple top.
B‑5861 Burroughs   Side 13mm (0.512") ? 32mm (1.260") tall ? 0‑9, LH & RH DP's ? SK‑207             Nipple top.
B‑5861ST Burroughs   Side 13mm (0.512") ? 32mm (1.260") tall ? 0‑9, LH & RH DP's ? SK‑207             Nipple top.
B‑5863ST Burroughs   Side 13mm (0.512") ? 32mm (1.260") tall ? 0‑9, LH & RH DP's ? SK‑207             Nipple top.
B‑5866 Burroughs   Side     +, −, RH DP SK‑207: 1d              
B‑5866S Burroughs   Side     +, −, RH DP SK‑207: 1d             Nipple top.
B‑5866S1 Burroughs   Side     +, −, RH DP SK‑207: 1d             Nipple top.
B‑5866ST Burroughs   Side     +, −, RH DP SK‑207: 1d             Nipple top.
B‑5866STX Burroughs   Side     +, −, RH DP SK‑207: 1d             Nipple top.
B‑5867 Burroughs 1970‑0030, B‑5857, B‑5857S, B‑5867S Side Inverted     0‑9 SK‑207: 1b             Nipple bottom.
B‑5867S Burroughs 1970‑0030, B‑5857, B‑5857S, B‑5867 Side Inverted     0‑9 SK‑207: 1b             Nipple bottom.
B‑5870 Burroughs, JRC 3080010, B‑5870S Side 13mm (0.512") 13mm (0.512") dia. X 34mm (1.34") tall 0‑9, LH & RH DP's SK‑207: 1a 170 170 140 2.3 3.5 5  
B‑5870L Burroughs   Side     0‑9, LH & RH DP's SK‑207: 1a 170 170 140 2.3 3.5 5 Nipple top.
B‑5870S Burroughs, JRC 1970‑0042, 5870S, 3080010, B‑5870ST, GR116D, NL‑5870S, NL‑5870ST, ZM1332, ZM1332K Side 13mm (0.512") 13mm (0.512") dia. X 34mm (1.34") tall 0‑9, LH & RH DP's SK‑207: 1a 170 170 140 2.3 3.5 5 Nipple top. Used in Yaesu YC‑355 frequency display.
B‑5870S7 Burroughs   Side     0‑9, LH & RH DP's SK‑207: 1a 170 170 140 2.3 3.5 5 Nipple top. Part number possibly erroneous.
B‑5870SF Burroughs   Side     0‑9, LH & RH DP's SK‑207: 1a 170 170 140 2.3 3.5 5 Filter coating. Nipple top.
B‑5870ST Burroughs 1970‑0042, 5870S, 5870ST, 3080010, B‑5870S, GR116D, NL‑5870S, NL‑5870ST, ZM1332, ZM1332K Side     0‑9, LH & RH DP's SK‑207: 1a 170 170 140 2.3 3.5 5 Nipple top.
B‑5870T Burroughs   Side     0‑9, LH & RH DP's SK‑207: 1a 170 170 140 2.3 3.5 5 Nipple top.
B‑5870TF Burroughs   Side     0‑9, LH & RH DP's SK‑207: 1a 170 170 140 2.3 3.5 5 Filter coating. Nipple top.
B‑5961 Burroughs 1970‑0009, 1970‑0016, 5991, 8422, 4205991, B‑5991, B‑8422, B‑59917, B‑59917A, JAN‑8422, KS‑19944,L1, NL‑5961, NL‑5991, NL‑8422, ZM1100, ZM1102, ZM1180, ZM1182 End (compact) 15.5mm (0.610") 20.5mm (0.800") X 26mm (1.020") X 34.5mm (1.358") tall 0‑9 SK‑136: 1 170 170 130 2.5 3.3 4.5 Mercury-free design intended for use in chemically restricted environments.
B‑5971 Burroughs NL‑5971 End (compact) 16mm (0.625") 20mm (0.790") X 26mm (1.020") X 24mm (0.958") tall 13 Segment Alphanumeric SK‑136: 2 170            
B‑5991 Burroughs 1970‑0009, 5991, 8422, 4205991, B‑5961, B‑8422, B‑59917, B‑59917A, JAN‑8422, KS‑19944,L1, NL‑5961, NL‑5991, NL‑8422, ZM1100, ZM1102, ZM1180, ZM1182 End (compact) 15.5mm (0.610") 20mm (0.790") X 26mm (1.020") X 28.5mm (1.120") tall 0‑9 SK‑136: 1 170 170 120 1.5 2.25 3.0 Ultra long life.
B‑5992 Burroughs 1970‑0012, NL‑5992 End (compact) 15.5mm (0.610") 20mm (0.790") X 26mm (1.020") X 28.5mm (1.120") tall +, − SK‑136: 1b              
B‑59??? Burroughs   End (compact) 15.5mm (0.610") 20mm (0.790") X 26mm (1.020") X 29mm (1.142") tall A, B, C, D, E, F SK‑136: 1c             Part number mostly obliterated on my example (initially reported as B‑5997), may be 4 or 5 digits following "B".
B‑5999 Burroughs   End (compact) 15.5mm (0.610") 20mm (0.790") X 26mm (1.020") X 29mm (1.142") tall M, K, R, Ω, +, −, AC SK‑136              
B‑6012 Burroughs BD‑225     'Super' +, − B13B: 1a              
B‑6032 Burroughs   End 20.5mm (0.808") 32mm (1.260") dia. X 41mm (1.614") tall +, −, Ω, ~, (inverse ~), E, K, R, M B13B: 1c             Symbols for test equipment. Narrow viewing angle. Low curved front.
B‑6033 Burroughs 7153, 8423, B‑6091, B‑7153, BD‑206, JAN‑8423, NL‑7153, NL‑8423 End 20.5mm (0.808") 32mm (1.260") dia. X 41mm (1.614") tall 0‑9 B13B: 1 250 250 143 1.5 2.25 3.0 <4.5> Ultra long life. Narrow viewing angle. Low curved front.
B‑6034 Burroughs NL‑6034   20.5mm (0.808") 32mm (1.260") dia. X 41mm (1.614") tall +, − B13B: 1a             "Long life". Narrow viewing angle. Low curved front.
B‑6036 Burroughs   End 20.5mm (0.808") 32mm (1.260") dia. X 41mm (1.614") tall +, −, AC B13B: 1b              
B‑6037 Burroughs   End 15.5mm (0.610") 32mm (1.260") dia. X 41mm (1.614") tall 1½‑Digit display (1[L], 0‑9[R]) B13B: 1n 170 170 147 1.5 <1.5> 2.25 <2.5> 3.0 <3.5> Narrow viewing angle. Low curved front. Silicone rubber outer sleeve.
B‑6091 Burroughs 7153, 8423, B‑6033, B‑7153, BD‑206, JAN‑8423, NL‑7153, NL‑8423 End 20.5mm (0.808") 34.5mm (1.350") dia. X 38.5mm (1.512") tall 0‑9 B13B: 1 170 170 147 1.5 <1.5> 3.0 <3.25> 4.0 <4.5> Low curved front.
B‑6422 Burroughs   End (compact)     0‑9 SK‑136: 1             Part number possibly mis-read B‑8422 ?
B‑6629 Burroughs           16 Pins             H‑P test equipment
B‑6700 Burroughs 6700, CV5277, ET51, JAN‑6700, JAN‑CBSC‑6700 N/A N/A   None B26A             'Beam‑X Switch' crossed-field electron beam decimal counting tube. External magnet.
B‑6844A Burroughs 122P224, 1970‑0002, 5031, 5092, 5092A, 6844A, 8037, 8421, 50347, B‑5031, B‑5092, B‑5092A, B‑50347, BD‑302, CK6844A, CK8037, CK8421, CV5278, CV9316, GN‑4, GN‑4A, GR10M, HB‑106, JAN‑6844A, JAN‑CB‑6844A, JAN‑CZ‑6844A, JAN‑8037, JAN‑8421, M2726‑102500, NL‑5092, NL‑6844A, NL‑8037, NL‑8421, NL‑50347, Z520M, Z560M, Z5600M, ZM1020, ZM1020/01, ZM1022 End 15.5mm (0.610") 27.5mm (1.080") dia. X 35mm (1.380") tall 0‑9 B13B: 1 170 170 135 1.5 <1.5> 2.25 <2.75> 3.0 <4.0> High domed front. Narrow viewing angle.
B‑7009 Burroughs 4021, 4032, 4041, 5810, 7009, 7977, 8502, B‑4021, B‑4021AL, B‑4021G, B‑4021L, B‑4032, B‑4041, B‑4081, B‑5810, BD‑200S, BD‑244, JAN‑7009, JAN‑7977, JAN‑8502, NL‑4021, NL‑4021A, NL‑4032, NL‑4041, NL‑7009, NL‑7977, NL‑8502, ZM1120, ZM1122 End 7.75mm (0.305") 16.5mm (0.650") dia. X 23.5mm (0.925") tall 0‑9 SK‑116: 1 170 170 102 0.7 <0.7> 1.0 1.2 <2.0> High domed front.
B‑7011 Burroughs BD‑307 End 57mm (2.25") ? 101.5mm (4") dia. ? 0‑9 B14A 300 300   9.0 12.0 15.0 High domed front.
B‑7031 Burroughs 7031 Side 51mm (2.000") 57mm (2.250") dia. X 140mm (5.500") tall 0‑9 B14A: 2, 4, 7, 5, 13, 6, 11, 3, 12, 9, 10 300 300   10.0 13.0 16.0 Ultra long life. Smooth top.
B‑7032 Burroughs 7032 Side Inverted 51mm (2.000") 57mm (2.250") dia. X 140mm (5.500") tall 0‑9 B14A: 2, 4, 7, 5, 13, 6, 11, 3, 12, 9, 10 300 300   10.0 13.0 16.0 Smooth bottom. No anode mesh in front of cathodes.
B‑7037 Burroughs 7037, NL‑7037, Z568M, Z5680M Side 51mm (2.000") 52.5mm (2.065") dia. X 100mm (3.925") tall 0‑9 SK‑137: 2, 4, 9, 7, 17, 8, 14, 3, 16, 12, 13 200 200 135 6 <6> 8 <8> 10 <10> Smooth top.
B‑7091 Burroughs B‑7094, NL‑7094 End 51mm (2.000") 79mm (3.100") dia. X 75mm (2.950") tall 0‑9 SK‑137: 2, 3, 17, 16, 14, 13, 12, 9, 8, 7, 4 170 170 150 4.0 <4.0> 5.5 <5.75> 7.0 <7.5> Low curved front. Nipple in base. No anode mesh in front of cathodes.
B‑7094 Burroughs B‑7091, NL‑7094 End 51mm (2.000") 79mm (3.100") dia. X 67.5mm (2.650") tall 0‑9 SK‑137: 2, 3, 17, 16, 14, 13, 12, 9, 8, 7, 4 170 170 150 4.0 <4.0> 5.5 <5.75> 7.0 <7.5> Low curved front. Nipple in base.
B‑7153 Burroughs 7153, 8423, B‑6033, B‑6091, BD‑206, JAN‑8423, NL‑7153, NL‑8423 End 20.5mm (0.808") 32mm (1.260") dia. X 41mm (1.614") tall 0‑9 B13B: 1 250 250 143 2.0 <2.0> 2.5 <3.5> 3.0 <5.0> High domed front.
B‑7971 Burroughs 283CQAD7971, 7971, NL‑7971 Side 63.5mm (2.500") 31mm (2") dia. X 127mm (5") tall 15 Segment Alphanumeric, incl. underscore SK‑137             Nipple in base.
B‑8033 Burroughs B‑8091, NL‑8091 End 35mm (1.375") 52.5mm (2.060") dia. X 60mm (2.362") tall 0‑9 SK‑137: 2, 3, 17, 16, 14, 13, 12, 9, 8, 7, 4 170 170 145 3.0 <3.0> 4.75 <5.0> 6.0 <6.5> Low curved front. No anode mesh.
B‑8091 Burroughs B‑8033, NL‑8091 End 35mm (1.375") 52.5mm (2.060") dia. X 58mm (2.280") tall 0‑9 SK‑137: 2, 3, 17, 16, 14, 13, 12, 9, 8, 7, 4 170 170 145 3.0 <3.0> 4.75 <5.0> 6.0 <6.5> Low curved front. Used in Datum 9520 time display.
B‑8422 Burroughs 1970‑0009, 5991, 8422, 4205991, B‑5961, B‑5991, B‑59917, B‑59917A, JAN‑8422, KS‑19944,L1, NL‑5961, NL‑5991, NL‑8422, ZM1100, ZM1102, ZM1180, ZM1182 End (compact)     0‑9 SK‑136: 1              
B‑8971 Burroughs NL‑8971 Side 36.5mm (1.440") 29mm (1.150") dia. X 85.5mm (3.365") tall 15 Segment Alphanumeric, incl. underscore B17A             Nipple top.
B‑9012 Burroughs HB‑105, NL‑9012 End 2.75mm (0.10") 27.5mm (1.080") dia. X 26.5mm (1.040") tall 0‑9 13 Pins, 10 in circle w/ 3 in center (sockets HSK‑111, SK‑111‑H & SK‑111‑V): 11&13, 3, 2, 1, 10, 9, 8, 7, 6, 5, 4, Keep Alive=12 150 150   0.25 0.4 0.6 'Pixie' position indicator tube.
B‑40217 Burroughs   End     0‑9               High domed front.
B‑49982 Burroughs NL‑49982 End (compact) 7mm (0.276") 11.2mm (0.441") X 15mm (0.591") X 26mm (1.024") tall +, − SK‑176             Complementary to B‑4998.
B‑49989 Burroughs NL‑49989 End (compact) 7.75mm (0.305") 12.0mm (0.470") X 16.0mm (0.625") X 25.4mm (1.000") tall A, C, G, L, N, R, S, T, V, Δ SK‑176: 1a 170 170 150 1.0 1.35 2.0 <2.5> Complementary to B‑4998.
B‑49990 Burroughs NL‑49990 End (compact) 7.75mm (0.305") 12.0mm (0.470") X 16.0mm (0.625") X 25.4mm (1.000") tall B, C, D, E, H, T, U, W, Δ SK‑176: 1b 170 170 150 1.0 1.35 2.0 <2.5> Complementary to B‑4998.
B‑50113 Burroughs BD‑221 End 15.5mm (0.610") 27.5mm (1.080") dia. X 35mm (1.375") tall L, M, N, P, R, S, T, V, W, X B13B 170 170 135 1.5 <1.5> 2.25 <2.75> 3.0 <4.0> High domed front. Narrow viewing angle.
B‑50174 Burroughs 6844       0‑9                
B‑50317 Burroughs         A, C, D, E, K, M, O, S, V, Y, µ B13B: 1j             Example of this tube in my collection has a problem with a few characters which do not light properly or consistently, preferring instead to discharge by the shortest path near the tube pins.
B‑50317B Burroughs         Alphabetic ? B13B              
B‑50318 Burroughs         C, D, E, G, H, L, M, R, S, T, / B13B: 1k             Example of this tube in my collection has a problem with a few characters which do not light properly or consistently, preferring instead to discharge by the shortest path near the tube pins.
B‑50325 Burroughs   End 15.5mm (0.610") 26mm (1.024") dia. X 28.5mm (1.122") tall AC, KΩ, +, − B13B 170 170 147 1.5 <1.5> 2.25 <2.5> 3.0 <3.5> Ultra long life? High domed front?
B‑50347 Burroughs 122P224, 1970‑0002, 5031, 5092, 5092A, 6844A, 8037, 8421, 50347, B‑5031, B‑5092, B‑5092‑A, B‑6844A, BD‑302, CK6844A, CK8037, CK8421, CV5278, CV9316, GN‑4, GN‑4A, GR10M, HB‑106, JAN‑6844A, JAN‑CB‑6844A, JAN‑CZ‑6844A, JAN‑8037, JAN‑8421, M2726‑102500, NL‑5092, NL‑6844A, NL‑8037, NL‑8421, NL‑50347, Z520M, Z560M, Z5600M, ZM1020, ZM1020/01, ZM1022 End 15.5mm (0.610") 27.5mm (1.080") dia. X 35mm (1.380") tall 0‑9 B13B: 1 170 170 135 1.5 <1.5> 2.25 <2.75> 3.0 <4.0> High domed front. Narrow viewing angle.
B‑50911 Burroughs B‑5016, B‑5032, BD‑214, NL‑5016, NL‑5032, NL‑50911 End     +, − B13B: 1a             Low curved front.
B‑50944 Burroughs   End     00, 25, 50, 75 B13B ?             Side-by-side cathode stacks, digit pairs commoned as shown.
B‑54362 Burroughs   Side 6.5mm (0.25") 20.5mm (0.808") dia. X 39.5mm (1.555") tall G, M, K, m, µ, n [top]
Hz, S [bottom]		 SK‑182 ?             Symbols for test equipment (over/under).
B‑54364 Burroughs   Side 7.75mm (0.310") 22mm (0.87") dia. X 43mm (1.69") tall G, M, K, m, µ, n [left]
Hz, S [right]		 SK‑182, pins 8 & 9 at front: Anode=3&14, G[l]=5, M[l]=2, K[l]=4, m[l]=6, µ[l]=8, n[l]=7, Hz[r]=13, S[r]=12             Symbols for frequency counter (2 stacks side-by-side). Nipple top.
B‑54365 Burroughs   Side 7.75mm (0.310") 22mm (0.87") dia. X 55mm (2.17") tall A, D, K, M [left]
C, R, V, Ω [right]		 SK‑182, pins 8 & 9 at front: Anode=3&14, A[l]=6, D[l]=7, K[l]=5, M[l]=4, C[r]=10, C[r]=11, R[r]=9, V[r]=13, Ω[r]=12             Symbols for test equipment (2 stacks side-by-side). Note two separate "C" cathodes in the right-hand stack. Nipple top.
B‑59362 Burroughs                          
B‑59917 Burroughs 1970‑0009, 5991, 8422, 4205991, B‑5961, B‑5991, B‑8422, B‑59917A, JAN‑8422, KS‑19944,L1, NL‑5961, NL‑5991, NL‑8422, ZM1100, ZM1102, ZM1180, ZM1182 End (compact) 15.5mm (0.610")   0‑9 SK‑136: 1              
B‑59917A Burroughs 1970‑0009, 5991, 8422, 4205991, B‑5961, B‑5991, B‑8422, B‑59917, JAN‑8422, KS‑19944,L1, NL‑5961, NL‑5991, NL‑8422, ZM1100, ZM1102, ZM1180, ZM1182 End (compact) 15.5mm (0.610")   0‑9 SK‑136: 1             Long life.
B‑59937 Burroughs   End (compact) 15.5mm (0.610")   N, S, E, W SK‑136: 1h              
B‑59943 Burroughs                          
B‑59952 Burroughs   End (compact)       SK‑136              
B‑59956 Burroughs NL‑809 End (compact) 15.5mm (0.610") 20.5mm (0.800") X 26mm (1.020") X 29.5mm (1.160") tall 0‑9, LH DP SK‑136: 1a 170 170   2.0 2.5 (DP 0.3) 3.5 (DP 0.5)  
B‑59996 Burroughs                          
B‑16851453 Burroughs   Side     0‑9, LH DP ? SK‑207 (long wires)             Nipple top. Used in Burroughs C 3100 calculator.
BA0006‑P31 IEE 6000‑92‑0006 End 16mm (0.625") 29mm (1.135") dia. X 66mm (2.60") tall 0‑9 B12C w/ anode button on side of tube, pin 5 at bottom: Anode=Side Button, Filament=5&11, Grid"0"=6, Grid"1"=12, Grid"2"=1, Grid"3"=2, Grid"4"=3, Grid"5"=4, Grid"6"=10, Grid"7"=9, Grid"8"=8, Grid"9"=7 1600   1750 (Filament 1.1)   0.030 (Filament 200)   'nimo' CRT readout using defocused electron beam projected through stencil mask onto phosphor screen. Nipple in base. TD>
BD‑200 Burroughs 4021, 4032, 4041, 5810, 7009, 7977, 8502, B‑4021, B‑4021AL, B‑4021G, B‑4021L, B‑4032, B‑4041, B‑4081, B‑5810, B‑7009, JAN‑7009, JAN‑7977, JAN‑8502, NL‑4021, NL‑4021A, NL‑4032, NL‑4041, NL‑7009, NL‑7977, NL‑8502, ZM1120, ZM1122 End 7.75mm (0.305") 16.5mm (0.650") dia. X 23.5mm (0.925") tall 0‑9 SK‑116: 1 170 170 102 0.7 <0.7> 1.0 1.2 <2.0> High domed front.
BD‑200S Burroughs 4021, 4032, 4041, 5810, 7009, 7977, 8502, B‑4021, B‑4021AL, B‑4021G, B‑4021L, B‑4032, B‑4041, B‑4081, B‑5810, B‑7009, BD‑244, JAN‑7009, JAN‑7977, JAN‑8502, NL‑4021, NL‑4021A, NL‑4032, NL‑4041, NL‑7009, NL‑7977, NL‑8502, ZM1120, ZM1122 End 7.75mm (0.305") 16.5mm (0.650") dia. X 23.5mm (0.925") tall 0‑9 SK‑116: 1 170 170 102 0.7 <0.7> 1.0 1.2 <2.0> High domed front.
BD‑203 Burroughs   N/A N/A   None               Crossed-field electron beam decimal counting tube.
BD‑206 Burroughs 7153, 8423, B‑6033, B‑6091, B‑7153, JAN‑8423, NL‑7153, NL‑8423 End 20.5mm (0.808") 32mm (1.260") dia. X 41mm (1.614") tall 0‑9 B13B: 1 250 250 143 1.5 <1.5> 2.25 <3.25> 3.0 <5.0>  
BD‑214 Burroughs B‑5016, B‑5032, B‑50911, NL‑5016, NL‑5032 NL‑50911 End 15.5mm (0.610") 27.5mm (1.080") dia. X 35mm (1.375") tall +, − B13B: 1a 170 170 135 1.5 <1.5> 2.25 <2.75> 3.0 <4.0> High domed front. Narrow viewing angle.
BD‑216 Burroughs B‑5018 End 15.5mm (0.610") 27.5mm (1.080") dia. X 35mm (1.375") tall A, B, C, D, E, F, G, H, J, K B13B 170 170 135 1.5 <1.5> 2.25 <2.75> 3.0 <4.0> High domed front. Narrow viewing angle.
BD‑221 Burroughs B‑50113 End 15.5mm (0.610") 27.5mm (1.080") dia. X 35mm (1.375") tall L, M, N, P, R, S, T, V, W, X B13B 170 170 135 1.5 <1.5> 2.25 <2.75> 3.0 <4.0> High domed front. Narrow viewing angle.
BD‑225 Burroughs B‑6012, NL‑6012     'Super' +, − B13B: 1a              
BD‑244 Burroughs 4021, 4032, 4041, 5810, 7009, 7977, 8502, B‑4021, B‑4021AL, B‑4021G, B‑4021L, B‑4032, B‑4041, B‑4081, B‑5810, B‑7009, BD‑200S, JAN‑7009, JAN‑7977, JAN‑8502, NL‑4021, NL‑4021A, NL‑4032, NL‑4041, NL‑7009, NL‑7977, NL‑8502, ZM1120, ZM1122 End 7.75mm (0.305") 16.5mm (0.650") dia. X 23.5mm (0.925") tall 0‑9 SK‑116: 1 120 120 102 0.7 <0.7> 1.0 1.4 <2.0> Low voltage design. High domed front.
BD‑255 Burroughs B‑4022     'miniature' +, −                
BD‑288 Burroughs   End       13 Pins              
BD‑301 Burroughs 6703 N/A N/A   None B26A             'Beam‑X Switch' crossed-field electron beam decimal counting tube. External magnet and shield.
BD‑302 Burroughs 122P224, 1970‑0002, 5031, 5092, 5092A, 6844A, 8037, 8421, 50347, B‑5031, B‑5092, B‑5092A, B‑6844A, B‑50347, CK6844A, CK8037, CK8421, CV5278, CV9316, GN‑4, GN‑4A, GR10M, HB‑106, JAN‑6844A, JAN‑CB‑6844A, JAN‑CZ‑6844A, JAN‑8037, JAN‑8421, M2726‑102500, NL‑5092, NL‑8037, NL‑8421, NL‑50347, Z520M, Z560M, Z5600M, ZM1020, ZM1020/01, ZM1022 End 15.5mm (0.610") 27.5mm (1.080") dia. X 35mm (1.380") tall 0‑9 B13B: 1 170 170 135 1.5 <1.5> 2.25 <2.75> 3.0 <4.0> High domed front. Narrow viewing angle.
BD‑305 Burroughs                          
BD‑307 Burroughs B‑7011 End 57mm (2.25")   0‑9 B14A              
BD‑310 Burroughs   End 15.5mm (0.610")   0‑9 B13B: 1m             Bi‑quinary. Cathode pairs must be connected externally.
BD‑316 Burroughs   N/A N/A   None               Crossed-field electron beam decimal counting tube.
BD‑316‑1 Burroughs   N/A N/A   None               Crossed-field electron beam decimal counting tube.
BD‑604P Burroughs   End       13 Pins              
BD‑644A Burroughs   End       13 Pins              
BIP 8212S BIPCO/
Burroughs		   End     0‑9 B13B             Socket module, contains I.C. Nixie driver.
BIP 8216P BIPCO/
Burroughs		   End     0‑9               Socket module, contains I.C. Nixie driver.
BIP 8501P BIPCO/
Burroughs		   End (compact)     0‑9 ?               'Trixie' (=TRansistor + nIXIE) socket module, contains I.C. Nixie driver.
BIP 8804‑1 BIPCO/
Burroughs		   End (compact)     0‑9               Socket module, contains I.C. Nixie driver.
BIP 8806‑1 BIPCO/
Burroughs		   End (compact)     0‑9               Socket module, contains I.C. Nixie driver.
BIP 8806‑2 BIPCO/
Burroughs		   End (compact)     0‑9               Socket module, contains I.C. Nixie driver.
BR13404 Burroughs   Special     13‑Digit, 9 segment numeric, RH DP Special             Neon 'Panaplex' used in HP 5360 digital counter; 2 extra segments for "+".
BR13451 Burroughs   Special     12‑Digit, 7 segment numeric, RH DP's, RH ","s, ½ [to right of rightmost digit] Special             Neon 'Panaplex II' flat panel readout.
BR16252 Burroughs, Vishay 1970‑0071, 2215804 Special 0.250"   16‑Digit, 7 segment numeric Special             Neon 'Panaplex II' flat panel readout.
BX‑1000 Burroughs 6710 N/A N/A   None B26A             'Beam‑X Switch' crossed-field electron beam decimal counting tube. Internal magnet(s).
BX‑1002 Burroughs   N/A N/A   None B26A ?             'Beam‑X Switch' crossed-field electron beam decimal counting tube. Internal magnet(s).
BX‑2000 Burroughs   N/A N/A   None B26A ?             'Beam‑X Switch' crossed-field electron beam decimal counting tube.
BX‑2003 Burroughs   N/A N/A   None B26A             'Beam‑X Switch' crossed-field electron beam decimal counting tube. Internal magnet(s), metal outer shield.
BX‑2004 Burroughs   N/A N/A   None B26A             'Beam‑X Switch' crossed-field electron beam decimal counting tube. Internal magnet(s), metal outer shield.
BX‑2005 Burroughs   N/A N/A   None B26A             'Beam‑X Switch' crossed-field electron beam decimal counting tube. Internal magnet(s), metal outer shield.
BX‑3000 Burroughs 6712 N/A N/A   None B26A             'Beam‑X Switch' crossed-field electron beam decimal counting tube. Internal magnet(s).
BX‑4000 Burroughs                         'Beam‑X Switch' crossed-field electron beam decimal counting tube?
CD2                            
CD7                            
CD8 Hewlett-Packard ?   Side       Grid ?             Nipple top. Used in unknown Hewlett‑Packard equipment.
CD11 Rodan (Okaya) GR‑201 End 18mm (0.709") 30mm (1.18") dia. X 45.5mm (1.79") tall 0‑9 TSB‑14P 170 170   1.5 2.5 3.5 Low curved front.
CD12 Rodan (Okaya)   End 35mm (1.38") 51mm (2.01") dia. X 77mm (3.03") tall 0‑9 B12A 200 200   3.5 5.0 6.5  
CD13 Rodan (Okaya) CD13A, CD101 End 8mm (0.315") 16.5mm (0.650") dia. X 30mm (1.18") tall 0‑9 SK‑116: 1 170 170   0.6 0.9 1.2 Low curved front.
CD13A Rodan (Okaya) CD13, CD101 End 8mm (0.315") 16.5mm (0.650") dia. X 30mm (1.18") tall 0‑9 SK‑116: 1 170 170   0.6 0.9 1.2 Low curved front.
CD14 Rodan (Okaya)   End 19mm (0.750") 30mm (1.18") dia. X 45.5mm (1.79") tall +, −, ×, ÷ TSB‑14P 170 170   1.5 2.5 3.5  
CD16A NEC   End 28mm (1.10") 41mm (1.61") dia. X 56mm (2.20") tall 0‑9, ?H DP M‑117 200 200   3.0 (DP 0.3) 4.0 (DP 1.2) 5.0 (DP 2.0) Low curved front.
CD16B NEC   End 28mm (1.10") 41mm (1.61") dia. X 56mm (2.20") tall 0‑9, ?H DP M‑131 170 170   5.0 (DP 0.3) 7.0 9.0 (DP 2.0)  
CD17 NEC   End     +, −, ×, ÷, =   170 170   1.0 2.0 3.0  
CD18 Matsushita   End 15mm (0.59") 29.5mm (1.16") dia. X 27.5mm (1.08") tall 0‑9   170 170   1.0 2.0 3.0  
CD19 Matsushita   End 8.2mm (0.32") 15mm (0.59") dia. X 26.5mm (1.04") tall 0‑9 SK‑116: 1 170 170   0.6 1.0 1.4  
CD24 NEC 6844A et al?, CD102 End 15.5mm (0.610") 27.5mm (1.080") dia. X 35mm (1.375") tall 0‑9 ? B13B ? (TSB‑13P) 170 170   1.5 2.25 3.0  
CD25 Rodan (Okaya)   End (compact) 19mm (0.75") 22mm (0.87") X 30mm (1.18") X 38mm (1.50") tall 0‑9 SK‑136: 1 ? (TSR‑11P) 170 170   1.5 2.5 3.5  
CD26 NEC 6844A et al? End     0‑9 B13B 170 170   1.0 1.75 2.5 Low curved front. Narrow viewing angle.
CD27 Rodan (Okaya) GR‑401 End 54mm (2.13") 72mm (2.83") dia. X 86mm (3.39") tall 0‑9 B12A 200 200   7.5 10 12.5  
CD28 Rodan (Okaya)   End 12mm (0.47") 22mm (0.87") dia. X 39mm (1.54") tall 0‑9 TSM‑13P 170 170   1.0 1.8 2.5  
CD32A JRC   End     0‑9                
CD33 NEC   End     mV, V, kV   170 170   1.0 2.0 3.0  
CD34 NEC   End     µA, mA, A   170 170   1.0 2.0 3.0  
CD35 NEC   End     Ω, kΩ, MΩ   170 170   1.0 2.0 3.0  
CD36A NEC LD‑5002 End 8mm (0.315") 16.5mm (0.650") dia. X 30mm (1.18") tall 0‑9 M‑126 170 170   1.1 1.5 1.9  
CD43 Rodan (Okaya)   End (compact) 16mm (0.63") 20.5mm (0.81") X 27.5mm (1.08") X 32mm (1.26") tall 0‑9 SK‑136: 1 ? (TSR‑11P) 170 170   1.5 2.25 3.0  
CD46 NEC   End 74mm (2.91") 103mm (4.06") dia. X 123mm (4.84") tall 0‑9 M‑121 200 200   12 15 18 Complementary to CD67.
CD47 Rodan (Okaya) A‑17, GR‑411, GR‑414 Side 135mm
(5.31")		 72mm (2.83") dia. X 220mm (8.66") tall 0‑9 B12A: 12, 10, 1, 2, 3, 4, 5, 6, 7, 8, 9 250 250 160 17.5 25 32.5 Monstrous!
CD55 Matsushita   End 4.1mm (0.16") 29.5mm (1.16") dia. X 27.5mm (1.08") tall 0‑9   160 160   0.6 0.8 1.0 'Pixie' style?
CD56 NEC   End (compact) 16mm (0.63") 20.5mm (0.81") X 27.5mm (1.08") X 32mm (1.26") tall 0‑9 SK‑136: 1 ? (M‑128) 170 170   1.5 2.25 3.0  
CD56A NEC   End (compact) 16mm (0.63") 20.5mm (0.81") X 27.5mm (1.08") X 32mm (1.26") tall 0‑9 SK‑136: 1 ? (M‑128) 170 170   2.0 2.75 3.5  
CD57 NEC   End 15mm (0.59") 27.5mm (1.08") dia. X 35mm (1.38") tall +, − B13B ? (M‑111) 170 170   1.5 2.25 3.0  
CD58 NEC   End (compact) 14mm (0.55") 20.5mm (0.81") X 27.5mm (1.08") X 32mm (1.26") tall +, − SK‑136: 1b ? (M‑128) 170 170   − 0.5, + 1.1 − 1.1, + 1.6 − 1.7, + 2.2  
CD61 Hitachi   Side 15.5mm (0.610") 19mm (0.75") dia. X 47.6mm (1.874") tall 0‑9, RH DP Wires (11?) 200       2.25 (DP 0.3)   Nipple top.
CD61P Hitachi   Side 15.5mm (0.610") 19mm (0.75") dia. X 47.6mm (1.874") tall 0‑9, RH DP Wires (11?) 200       2.25 <18> (DP 0.3 <2.3>)   Designed for multiplexing. Nipple top.
CD65 NEC   Side 14mm (0.551") 18mm (0.709") dia. X 38mm (1.5") tall 0‑9, RH DP                
CD66 NEC, Rodan (Okaya) CD66A, CD66P Side 16mm (0.63") 18mm (0.71") dia. X 45mm (1.77") tall 0‑9, RH DP 12 Wires: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, DP=12 170     1.5 (DP 0.3) 2.25 (DP 0.5) 3.0 (DP 0.7) Complementary to CD69, CD74. Anode mesh is horizontal wires only. Designed for multiplexing. Nipple top.
CD66A NEC CD66, CD66P Side 16mm (0.63") 18mm (0.71") dia. X 45mm (1.77") tall 0‑9, RH DP 12 Wires: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, DP=12 170     1.5 (DP 0.3) 2.25 (DP 0.5) 3.0 (DP 0.7) Complementary to CD69, CD74. Nipple top.
CD66P Rodan (Okaya) CD66, CD66A Side 16mm (0.63") 18mm (0.71") dia. X 45mm (1.77") tall 0‑9, RH DP 12 Wires: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, DP=12 170 <190>     1.5 (DP 0.3) 2.25 <15> (DP 0.5 <3>) 3.0 (DP 0.7) Complementary to CD69, CD74. Designed for multiplexing. Nipple top.
CD67 NEC   End 74mm (2.91") 103mm (4.06") dia. X 123mm (4.84") tall +, − M‑121 200 200   12 15 18 Complementary to CD46.
CD69 NEC   Side 13mm (0.512") actual, 15.5mm (0.610") nominal 18mm (0.709") dia. X 45mm (1.772") tall +, − Wires 170     +=1.1, − =0.5 +=1.6, − =1.1 +=2.2, − =1.7 Complementary to CD66, CD66A, CD66P, CD74. Anode mesh is horizontal wires only. Nipple top.
CD71 Hitachi   Side 9mm (0.35") 13mm (0.51") dia. X 37mm (1.46") tall 0‑9, RH DP 12 Wires 200       1.0 (DP 0.12)   Designed for multiplexing. Nipple top.
CD72 Matsushita, Panasonic   Side 12mm (0.47") 15mm (0.59") dia. X 38mm (1.50") tall 0‑9, RH DP 12 Wires             Nipple top.
CD72P Panasonic   Side 12mm (0.47") 15mm (0.59") dia. X 38mm (1.50") tall 0‑9, RH DP 12 Wires             Designed for multiplexing. Nipple top.
CD74 NEC   Side 15.5mm (0.61") 18mm (0.71") dia. X 45mm (1.77") tall 0‑9 Wires: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 170     1.5 2.25 3.0 Complementary to CD66, CD66A, CD66P, CD69. Anode mesh is horizontal wires only. Designed for multiplexing. Nipple top.
CD76 NEC   Side 12mm (0.47") 16mm (0.63") dia. X 39mm (1.54") tall 0‑9, ?H DP Wires 170 <190>     1.5 <5> (DP 0.5 <1.2>) 2.25 <7.5> (DP 0.7 <1.7>) 3.0 <10> (DP 0.9 <2.2>) Designed for multiplexing.
CD78 Rodan (Okaya) GR‑115 Side 9.5mm (0.37") 13mm (0.51") dia. X 37mm (1.46") tall 0‑9, ?H DP Wires 170 <170>     2.3 (DP 0.2) 2.75 <7.2> (DP 0.3 <0.8>) 3.3 (DP 0.4) Designed for multiplexing.
CD79 Hitachi   Side 9mm (0.35") 13mm (0.51") dia. X 37mm (1.46") tall 0‑9, RH DP Wires 200       <10> (DP <1.0>)   Designed for multiplexing. Nipple top.
CD80P Hitachi   Side 13mm (0.51") 13mm (0.51") dia. X 37mm (1.45") tall 0‑9, ?H DP, possible additional symbol(s) 18 Wires ? 200       <15> (DP <1.7>)   Designed for multiplexing.
CD81 Hitachi   Side 13mm (0.51") 13mm (0.51") dia. X 37mm (1.45") tall 0‑9, RH DP 14 Wires 200 170 130   2.5 <15> (DP 0.3 <1.7>)   Designed for multiplexing.
CD82 Okaya GR‑113 Side 13mm (0.51") 13mm (0.51") dia. X 37mm (1.45") tall 0‑9, ?H DP Wires 170 <190>     2.3 (DP 0.2) 2.75 <10> (DP 0.3 <1.0>) 3.3 (DP 0.4) Designed for multiplexing.
CD83P NEC   Side 13mm (0.51") 13mm (0.51") dia. X 37mm (1.45") tall 0‑9, RH DP Wires 170 <170>     <8> (DP <1.2>) <15> (DP <2.0>) <22> (DP <2.8>) High brightness. Designed for multiplexing.
CD86 Elfin, Rodan (Okaya) MG‑17G Side 9.6mm (0.38") 10.5mm (0.41") dia. X 32mm (1.26") tall 7 Segment, ?H DP 9 Wires 180       seg. 0.35, DP 0.18   Neon.
CD89P NEC LD‑955A Side 10mm (0.39") 13mm (0.51") dia. X 38mm (1.50") tall 0‑9, RH DP 12 Wires <190>     <5> (DP <1.0>) <7> (DP <1.5>) <9> (DP <2.0>) High brightness. Designed for multiplexing. Nipple top.
CD90P Hitachi   Side 9.5mm (0.375") 10mm (0.39") dia. X 37mm (1.46") tall 0‑9, ?H DP 12 Wires 200       <7> (DP <0.77>)   Designed for multiplexing. Nipple top.
CD91 Rodan (Okaya) GR‑110 Side 9.5mm (0.375") 10.5mm (0.41") dia. X 31mm (1.22") tall 0‑9, ?H DP Wires 170 <190>     1.2 (DP 0.15) 1.9 <5> (DP 0.3 <0.9>) 2.6 (DP 0.5) Designed for multiplexing. Nipple top.
CD92 Rodan (Okaya) GR‑116 Side 13mm (0.51") 13.5mm (0.53") dia. X 32mm (1.26") tall 0‑9, LH & RH DP's SK‑207: 1, 50mm (1.97") long wires 170 <175> 170 <165> 0.5 <11> (DP 0.05 <1>) 1.2 <14> (DP 0.4 <4>) 1.9 <17> (DP 0.6 <6>) Designed for multiplexing. Listed peak current values are for 1/20 duty cycle. Nipple top.
CD95 Rodan (Okaya) GR311 Side 70mm (2.76") 51mm (2.0") dia. X 145mm (5.71") tall   B12A 200     12 15 18  
CD101 Rodan (Okaya) CD13, CD13A End 8mm (0.315") 16.5mm (0.650") dia. X 30mm (1.18") tall 0‑9 SK‑116: 1 170 170   0.6 0.9 1.2 Low curved front.
CD102 Matsushita, NEC 6844A et al?, CD24 End 15.5mm (0.610") 27.5mm (1.080") dia. X 35mm (1.375") tall 0‑9 B13B ? (TSB‑13P, M‑111) 170 170   1.5 2.25 3.0  
CH‑1047 Chatham   End N/A   Glow position               'Dekatron' style glow-transfer decimal counting tube.
CK1905 Raytheon NL‑84x ? Side 15.5mm (0.610") nominal 19.0mm (0.750") dia. X 52.0mm (2.050") tall 0‑9 ? RTS‑11 170 170 147 1.5 2.5 3.0 <3.5> Filter coating. Nipple top.
CK1907 Raytheon 340‑0005, NL‑843 Side 15.5mm (0.610") nominal 19.0mm (0.750") dia. X 52.0mm (2.050") tall +, − RTS‑11: 1d 170 170 147 1.5 2.5 3.0 <3.5> Nipple top.
CK1916 Raytheon 4200841, NL‑841 Side 15.5mm (0.610") 19.0mm (0.750") dia. X 52.0mm (2.050") tall 0‑9, LH DP RTS‑11: 1a 170 170 147 1.5 (DP 0.1) 2.5 3.5 <3.5> (DP 0.7) Nipple top. 'Datavue' Nixie-style readout tube. Life expectancy 200k hrs.
CK1917 Raytheon NL‑842 Side 15.5mm (0.610") 19.0mm (0.750") dia. X 52.0mm (2.050") tall 0‑9, RH DP RTS‑11: 1b 170 170 147 1.5 (DP 0.1) 2.5 3.5 <3.5> (DP 0.7) Nipple top. 'Datavue' Nixie-style readout tube. Life expectancy 200k hrs.
CK1918 Raytheon NL‑848 Side 15.5mm (0.610") 19.0mm (0.750") dia. X 52.0mm (2.050") tall 0‑9, LH & RH DP's RTS‑11: 1c 170 170 147 1.5 (DP 0.1) 2.5 3.5 <3.5> (DP 0.7) Nipple top. 'Datavue' Nixie-style readout tube. Life expectancy 200k hrs.
CK1922 Raytheon NL‑841 ?, NL‑845 ? Side 15.5mm (0.610") 19.0mm (0.750") dia. X 52.0mm (2.050") tall 0‑9, LH DP ? RTS‑11: 1a ?             Nipple top.
CK1929S Raytheon   Side     0‑9 ? SK‑207             Nipple top. Suffix "S" = "engineering Sample" ?
CK6476 Raytheon 6476, 6476/A, CV2325, GS10C, GS10C/S, M2465‑402, Z502S End N/A   Glow position B12E             'Dekatron' style glow-transfer decimal counting/selector tube.
CK6802 Raytheon 6802 End N/A   Glow position K8A: 1             'Dekatron' style glow-transfer decimal counting tube.
CK6844A Raytheon 122P224, 1970‑0002, 5031, 5092, 5092A, 6844A, 8037, 8421, 50347, B‑5031, B‑5092, B‑5092A, B‑6844A, B‑50347, BD‑302, CK8037, CK8421, CV5278, CV9316, GN‑4, GN‑4A, GR10M, HB‑106, JAN‑6844A, JAN‑CB‑6844A, JAN‑CZ‑6844A, JAN‑8037, JAN‑8421, M2726‑102500, NL‑5092, NL‑8037, NL‑8421, NL‑50347, Z520M, Z560M, Z5600M, ZM1020, ZM1020/01, ZM1022 End 15.5mm (0.610") 27.5mm (1.080") dia. X 35mm (1.380") tall 0‑9 B13B: 1 170 170 135 1.5 <1.5> 2.25 <2.75> 3.0 <4.0> High domed front. Narrow viewing angle.
CK6909 Raytheon 6909 End N/A   Glow position K8A: 1a             'Dekatron' style glow-transfer decimal counting tube.
CK6910 Raytheon 6910 End N/A   Glow position B12E             'Dekatron' style glow-transfer decimal counting tube.
CK7978 Raytheon 7978 End N/A   Glow position B13B             'Dekatron' style glow-transfer decimal counting tube.
CK8037 Raytheon 122P224, 1970‑0002, 5031, 5037, 5092, 5092A, 6844A, 8037, 8421, 50347, B‑5031, B‑5037, B‑5092, B‑5092A, B‑6844A, B‑50347, BD‑302, CK6844A, CV5278, CV9316, GN‑4, GN‑4A, GR10M, HB‑106, JAN‑6844A, JAN‑CB‑6844A, JAN‑CZ‑6844A, JAN‑8037, JAN‑8421, M2726‑102500, NL‑5092, NL‑6844A, NL‑8037, NL‑8421, NL‑50347, Z520M, Z560M, Z5600M, ZM1020, ZM1020/01, ZM1022 End 15.5mm (0.610") 26mm (1.024") dia. X 28.5mm (1.122") tall 0‑9 B13B: 1 170 170 147 1.5 <1.5> 2.25 <2.5> 3.0 <3.5> 'Datavue' Nixie-style readout tube. Low curved front.
CK8254 Raytheon   Side     0‑9 Pins             Nipple top.
CK8421 Raytheon 122P224, 1970‑0002, 5031, 5092, 5092A, 6844A, 8037, 8421, 50347, B‑5031, B‑5092, B‑5092‑A, B‑6844A, B‑50347, BD‑302, CK6844A, CK8037, CV5278, CV9316, GN‑4, GN‑4A, GR10M, HB‑106, JAN‑6844A, JAN‑CB‑6844A, JAN‑CZ‑6844A, JAN‑8037, JAN‑8421, M2726‑102500, NL‑5092, NL‑6844A, NL‑8037, NL‑8421, NL‑50347, Z520M, Z560M, Z5600M, ZM1020, ZM1020/01, ZM1022 End 15.5mm (0.610") 27.5mm (1.080") dia. X 35mm (1.380") tall 0‑9 B13B: 1 170 170 147 1.5 <1.5> 2.25 <2.5> 3.0 <3.5> Low curved front.
CK8650 Raytheon   Side 15.5mm (0.610") 22mm (0.875") dia. X 52.5mm (2.0625")   11 Pins, configuration similar to RTS-11             Nipple top. Known examples are marked "SAMPLE" or "ENG. SAMPLE".
CK8754 Janus, Raytheon 340‑0004, 8754, 4200840, NL‑840 Side 15.5mm (0.610") 19.0mm (0.750") dia. X 52.0mm (2.050") tall 0‑9 RTS‑11: 1 170 170 147 1.5 2.5 3.5 <3.5> Nipple top. 'Datavue' Nixie-style readout tube. Life expectancy 200k hrs.
CT4251     End N/A   Glow position Pins             'Dekatron' style glow-transfer decimal counting tube.
CV1739   GC10/4B, M2465‑401C End N/A 29.5mm (1.16") dia. X 99.75mm (3.93") tall Glow position K8A: 1b 350   191       'Dekatron' style glow-transfer decimal counting tube.
CV1740   GS12C End N/A   Glow position Special 16 contact             'Dekatron' style glow-transfer dodecal (12-position) counting tube.
CV2199   GC10A                        
CV2223 STC 11TU7 ?, CVX2223, G10/241E, G10/241K End       B12E             'Nomotron' unidirectional glow-transfer decimal counter.
CV2271   CV6044, GC10B, GC10B/L, GC10B/S, Z303C End N/A   Glow position K8A: 1             'Dekatron' style glow-transfer decimal counting tube.
CV2325 ETL 6476, 6476/A, CK6476, GS10C, GS10C/S, M2465‑402, Z502S End N/A   Glow position B12E: Anode=13, K1=10, K2=9, K3=8, K4=7, K5=6, K6=5, K7=4, K8=3, K9=2, K10=1, Guide1=12, Guide2=11             'Dekatron' glow-transfer decimal counting/selector tube.
CV5106   6370, E1T, S 10 S1 Side N/A 37mm (1.457") dia. X 83mm (3.268") tall Glow position only (labeled) B12A             CRT electron beam decimal counting tube with phosphor screen.
CV5143   GC10D End N/A   Glow position K8A: 1c             'Dekatron' style glow-transfer decimal counting tube.
CV5238 STC GA2 End 18.5mm (0.735") 28.5mm (1.130") dia. X 36mm (1.425") tall K, L, M, N, O, P, Q, R, S, T B13B: 1h             No anode mesh. Characters formed of spot-welded, round cross-section wire.
CV5277   6700, B‑6700, ET51, JAN‑6700, JAN‑CBSC‑6700 N/A N/A   None B26A             Crossed-field electron beam decimal counting tube. External magnet.
CV5278   122P224, 1970‑0002, 5031, 5092, 5092A, 6844A, 8037, 8421, 50347, B‑5031, B‑5092, B‑5092A, B‑6844A, B‑50347, BD‑302, CK6844A, CK8037, CK8421, CV9316, GN‑4, GN‑4A, GR10M, HB‑106, JAN‑6844A, JAN‑CB‑6844A, JAN‑CZ‑6844A, JAN‑8037, JAN‑8421, M2726‑102500, NL‑5092, NL‑6844A, NL‑8037, NL‑8421, NL‑50347, Z520M, Z560M, Z5600M, ZM1020, ZM1020/01, ZM1022 End 15.5mm (0.610") 27.5mm (1.080") dia. X 35mm (1.380") tall 0‑9 B13B: 1 170 170 147 1.5 <1.5> 2.25 <2.5> 3.0 <3.5> Low curved front.
CV5290 ETL 8286, VS10G, VS10G/M N/A N/A   None B26A             Crossed-field electron beam decimal counting tube.
CV5291 ETL GR10A, Z503M ? End N/A   Glow position               'Register Tube' similar in appearance to a 'Dekatron' style glow-transfer counter, but without guide electrodes. Does not count, but provides display closely resembling appearance of Dekatrons.
CV5351 ITT, Lorenz GN‑5A End 25.4mm (1.00") 44.4mm (1.75") dia. X 61.9mm (2.44") tall 0‑9 B12A, key spline at bottom: 12, 10, 1, 2, 3, 4, 5, 6, 7, 8, 9 200 200   2.5 3.5 5.0 Low curved front.
CV5842 ETL GR10K End 19mm (0.748") 32.4mm (1.276") dia. X 38mm (1.496") tall 0‑9 B17A: 12, 4, 13, 14, 1, 15, 11, 10, 5, 6, 2 150 150 140 1.0 1.4 1.8 Nipple in base. "Long life" (rated 10,000 hrs.) No anode mesh in front of cathodes.
CV6044   CV2271, GC10B, GC10B/L, GC10B/S, Z303C End N/A   Glow position K8A: 1             'Dekatron' style glow-transfer decimal counting tube.
CV6100 ETL CV1739, GC10/4B, GC10/4B/L, M2465‑401C End N/A   Glow position K8A: 1d             'Dekatron' glow-transfer decimal counting tube.
CV8090 ETL GR10G Side 30mm (1.181") 29.5mm (1.161") dia. X 78mm (3.071") tall 0‑9 B26A, pin 3 at front: 6, 14, 10, 9, 7, 5, 2, 1, 17, 16, 15 220 220 180 5.5 6.5 9 'Digitron' Nixie-style readout tube. Nipple top. Reverse viewable. Short rated life (5000 hrs.) Equalizing resistors recommended: 8.2kΩ on cathode "1" & 4.7kΩ on cathode "7".
CV8630   GS10H End N/A   Glow position B17A             'Dekatron' style glow-transfer decimal counting tube.
CV9316   122P224, 1970‑0002, 5031, 5092, 5092A, 6844A, 8037, 8421, 50347, B‑5031, B‑5092, B‑5092A, B‑6844A, B‑50347, BD‑302, CK6844A, CK8037, CK8421, CV5278, GN‑4, GN‑4A, GR10M, HB‑106, JAN‑6844A, JAN‑CB‑6844A, JAN‑CZ‑6844A, JAN‑8037, JAN‑8421, M2726‑102500, NL‑5092, NL‑6844A, NL‑8037, NL‑8421, NL‑50347, Z520M, Z560M, Z5600M, ZM1020, ZM1020/01, ZM1022 End 15.5mm (0.610") 26mm (1.024") dia. X 28.5mm (1.122") tall 0‑9 B13B: 1             Low curved front.
CV9732   GN‑4D End 15.5mm (0.610") 28.5mm (1.12") dia. X 31mm (1.22") tall 0‑9 B13B: 1 170 170   1.5 <1.5> 2.0 3.0 <4.0>  
CVX2223 STC 11TU7 ?, CV2223, G10/241E, G10/241K End       B12E             'Nomotron' unidirectional glow-transfer decimal counter.
DA1300 Apollo DR1300 Side 12mm (0.472") 13.0mm (0.512") dia. X 38.0mm (1.496") tall 7 Segment 9 Wires 3.5 N/A 5.0       'Numitron' filament readout. Nipple top.
DA1310 Apollo DR1310 Side 12mm (0.472") 13.0mm (0.512") dia. X 38.0mm (1.496") tall 7 Segment, LH DP 9 Wires 3.5 N/A 5.0       'Numitron' filament readout. Nipple top.
DA1320 Apollo DR1320 Side 12mm (0.472") 13.0mm (0.512") dia. X 38.0mm (1.496") tall +, −, 1 (segments) 9 Wires 3.5 N/A 5.0       'Numitron' filament readout. Nipple top.
DA2000 Amperite, Apollo, National Electronics, RCA DR2000 Side 15mm (0.600") 20.5mm (0.810") dia. X 47.7mm (1.875") tall 7 Segment B9A 3.5 N/A 4.5       'Numitron' filament readout. Nipple top.
DA2010 Apollo, Westinghouse DR2010 Side 15mm (0.600") 20.5mm (0.810") dia. X 47.7mm (1.875") tall 7 Segment, LH DP B9A 3.5 N/A 4.5       'Numitron' filament readout. Nipple top.
DA2020 Apollo DR2020 Side 15mm (0.600") 20.5mm (0.810") dia. X 47.7mm (1.875") tall +, −, 1 (segments) B9A 3.5 N/A 4.5       'Numitron' filament readout. Nipple top.
DA2100 Apollo DR2100 Side 10mm (0.400") 13.0mm (0.512") dia. X 43.2mm (1.700") tall 7 Segment TO‑100 (9 Wires) 3.5 N/A 4.5       'Numitron' filament readout. Nipple top.
DA2110 Apollo 411‑269, 411‑0269, DR2110 Side 10mm (0.400") 13.0mm (0.512") dia. X 43.2mm (1.700") tall 7 Segment, LH DP TO‑100 (9 Wires) 3.5 N/A 4.5       'Numitron' filament readout. Nipple top.
DA2120 Apollo DR2120 Side 10mm (0.400") 13.0mm (0.512") dia. X 43.2mm (1.700") tall +, −, 1 (segments) TO‑100 (9 Wires) 3.5 N/A 4.5       'Numitron' filament readout. Nipple top.
DA2300 Apollo DR2300 Side 12mm (0.472") 13.0mm (0.512") dia. X 43.5mm (1.713") tall 7 Segment TO‑100 (9 Wires) 3.5 N/A 5.0       'Numitron' filament readout. Nipple top.
DA2310 Apollo DR2310 Side 12mm (0.472") 13.0mm (0.512") dia. X 43.5mm (1.713") tall 7 Segment, LH DP TO‑100 (9 Wires) 3.5 N/A 5.0       'Numitron' filament readout. Nipple top.
DA2320 Apollo DR2320 Side 12mm (0.472") 13.0mm (0.512") dia. X 43.5mm (1.713") tall +, −, 1 (segments) TO‑100 (9 Wires) 3.5 N/A 5.0       'Numitron' filament readout. Nipple top.
DG‑8F ISE                         Vacuum Fluorescent Display.
DG‑8R Futaba   Side     8 Segment, RH DP Wires             Vacuum Fluorescent Display. Nipple top. 8th segment is tail on right side for digit "4".
DG‑10A Futaba, ISE, Iseden   Side 8mm (0.315") 9.5mm (0.375") dia. X 35mm (1.375") tall 7 Segment, RH DP Wires             'F‑Itron' VFD. Nipple top.
DG‑10C     Side   10mm (0.394") dia. 10 Segment (window-pane), RH DP Wires             Vacuum Fluorescent Display. Nipple top.
DG‑10EN NEC   Side   1.5" tall x 0.4375" dia. 12 Segment (window-pane), RH DP Wires             Vacuum Fluorescent Display. Nipple top.
DG‑10Q1 Futaba                         Vacuum Fluorescent Display. Used in Sharp EL 804 calculator.
DG‑10R1 Futaba   Side 0.3"   8 Segment, RH DP Wires             Vacuum Fluorescent Display. Nipple top. 8th segment is tail on right side for digit "4".
DG‑10T Futaba   Side 8mm (0.315") 8mm (0.315") dia. X 30mm (1.18") tall 7 Segment, LH ', RH DP Wires (w/ colored insulation?)             Vacuum Fluorescent Display. Nipple top.
DG‑10W1 Futaba                         Vacuum Fluorescent Display
DG‑12B Futaba ?, Iseden/Itron   Side 15.5mm (0.610")   9‑Segment numeric, RH DP 14 Wires, subminiature, no key gap             'Itron' VFD. Used in Burroughs C3260 calculator. The unusual pattern of curved segments produces numerals contoured more like handwritten or typed figures, with the exception of the zero which is half-height.
DG‑12C Futaba, Iseden, Itron   Side 13mm (0.5")   9‑Segment numeric, LH ', RH DP               'Itron' Vacuum Fluorescent Display. Nipple top. 2 extra vertical segments for "+" or centered "1".
DG‑12H ISE   Side 13mm (0.512")   7 Segment, RH DP Wires             Vacuum Fluorescent Display
DG‑12H1 Futaba   Side 13mm (0.512")   7 Segment, RH DP Wires             'Itron' Vacuum Fluorescent Display
DG‑12M Iseden/Itron   Side     10 Segment numeric, LH ', RH DP Wires (w/ colored insulation?)             VFD; 2 extra vertical segments for "+" or centered "1".
DG‑12X Futaba   Side     10 Segment numeric, RH DP Wires             'Itron' VFD; 2 extra vertical segments for "+" or centered "1".
DG‑19B Itron/Iseden   Side ?                     VFD.
DG‑19E Itron/Iseden ?   Side                     VFD. Nipple top.
DK23 Rodan (Okaya)   End N/A   Glow position               'Dekatron' style glow-transfer decimal counting tube?
DK24/4CG‑10B‑2 Rodan (Okaya)   End N/A   Glow position TSB‑14P             'Dekatron' style glow-transfer decimal counting tube. Low curved front.
DP60A ISE   Special 5.5mm (0.217") 18.5mm (0.728") dia. X 70mm (2.756") long 6‑Digit, 7 segment, RH DP's Wires (left end)             VFD. "Multi-Numerical Indicator Tube". Nipple on right end.
DR2000 RCA, Westinghouse DA2000 Side 15mm (0.600") 20.5mm (0.810") dia. X 47.7mm (1.875") tall 7 Segment B9A 3.5 N/A 4.5       'Numitron' filament readout. Nipple top.
DR2010 RCA DA2010 Side 15mm (0.600") 20.5mm (0.810") dia. X 47.7mm (1.875") tall 7 Segment, LH DP B9A 3.5 N/A 4.5       'Numitron' filament readout. Nipple top.
DR2020 RCA DA2020 Side 15mm (0.600") 20.5mm (0.810") dia. X 47.7mm (1.875") tall +, −, 1 (segments) B9A 3.5 N/A 4.5       'Numitron' filament readout. Nipple top.
DR2022 RCA   Side 15mm (0.600") 20.5mm (0.810") dia. X 47.7mm (1.875") tall   B9A 3.5 N/A 4.5       'Numitron' filament readout. Nipple top.
DR2030 National Electronics, RCA   Side 15mm (0.600") 20.5mm (0.810") dia. X 47.7mm (1.875") tall +, − B9A 3.5 N/A 4.5       'Numitron' filament readout. Nipple top.
DR2100 RCA DA2100 Side 10mm (0.400") 13.0mm (0.512") dia. X 43.2mm (1.700") tall 7 Segment TO‑100 (9 Wires) 3.5 N/A 4.5       'Numitron' filament readout. Nipple top.
DR2110 RCA 411‑269, 411‑0269, DA2110 Side 10mm (0.400") 13.0mm (0.512") dia. X 43.2mm (1.700") tall 7 Segment, LH DP TO‑100 (9 Wires) 3.5 N/A 4.5       'Numitron' filament readout. Nipple top.
DR2115 RCA   Side 10mm (0.400") 13.0mm (0.512") dia. X 43.2mm (1.700") tall 7 Segment, RH DP TO‑100 (9 Wires) 3.5 N/A 4.5       'Numitron' filament readout. Nipple top.
DR2120 RCA DA2120 Side 10mm (0.400") 13.0mm (0.512") dia. X 43.2mm (1.700") tall +, −, 1 (segments) TO‑100 (9 Wires) 3.5 N/A 4.5       'Numitron' filament readout. Nipple top.
DR2130 RCA   Side 10mm (0.400") 13.0mm (0.512") dia. X 43.2mm (1.700") tall +, − TO‑100 (9 Wires) 3.5 N/A 4.5       'Numitron' filament readout. Nipple top.
DR2200 RCA   Side     7 Segment   3.5 N/A 5.0       'Numitron' filament readout. Nipple top.
DR2210 RCA         7 Segment, LH DP   3.5 N/A 5.0       'Numitron' filament readout. Nipple top.
DR2215 RCA   Side     7 Segment, RH DP   3.5 N/A 5.0       'Numitron' filament readout. Nipple top.
DT‑1704A Tung‑Sol                          
DT‑1704B Tung‑Sol   Side     7 Segment Pins             Nipple top.
DT‑1704C Tung‑Sol   Side   38mm (1.5") tall 7 Segment 9 Pins             'Digivac' VFD. Nipple top. Used in Collins 651S‑1 radio communications receiver display.
DT‑1705A Tung‑Sol   Side     7 Segment, RH DP 9 Pins, additional wire lead exits through top nipple (!) Filament ~1.5, Segments ~24       'Digivac' VFD. Nipple top.
DT‑1705B Tung‑Sol   Side       Pins             'Digivac' VFD. Nipple top.
DT‑1705D General Electric   Side   38mm (1.5") tall 7 Segment, RH DP 10 Pins, circle w/ one pin shifted inward (B11G ?)             VFD. Nipple top.
DT‑1705E Tung‑Sol   Side 15.5mm (0.610") 18mm (0.709") dia. X 50mm (1.968") tall 7 Segment, RH DP 10 Pins (B10C ?)             'Digivac' VFD. Nipple top. Used in Hartmann & Braun S2000 Panel Meter.
DT‑1707B Tung‑Sol   Side ?     7 Segment ?               'Digivac' VFD ?
DT‑1905D Tung‑Sol   Side     7 Segment               'Digivac' VFD
DTF‑104B RCA   End     7 Segment B9E 3.5 N/A 5.0       'Numitron' filament readout. Nipple in base.
DZ 10 Cerberus   End N/A   Glow position B14A             'Dekatron' style glow-transfer decimal counting tube, with metal shell covering cathode pins inside tube. Shell has holes for viewing glow position, stamped with numbers 0‑9.
E1T Amperex, Mullard, Philips, Valvo 6370, CV5106, S 10 S1 Side N/A 37mm (1.457") dia. X 83mm (3.268") tall Glow position only (labeled) B12A             CRT electron beam decimal counting tube with phosphor screen.
E6520 Toshiba         8‑Digit, 7 segment + "E"               VFD.
ET51 Mullard 6700, B‑6700, CV5277, JAN‑6700, JAN‑CBSC‑6700 N/A N/A   None B26A             'Trochotron' crossed-field electron beam decimal counting tube. External magnet.
EX‑352 Sperry 238‑002‑9‑001, 411‑286, 411‑0286, 411‑295, 411‑0295, 1970‑0066, SP‑352 Special 14mm (0.550")   2‑Digit, 7 segment, RH DP's 20 Pins, special arrangement             Planar neon gas discharge 'Panaplex' readout. Separate anodes allow single-digit multiplexing.
EZ‑1T Elesta                         Counting tube.
EZ‑10 Elesta EZ‑10A, EZ‑10B End N/A   Glow position 13 Pins, 10 in outer circle, 3 in center, different from HSK‑111 and RTS‑11.             'Dekatron' style unidirectional glow-transfer decimal counting tube. Argon fill? Nipple front.
EZ‑10A Elesta EZ‑10, EZ‑10B End N/A   Glow position 13 Pins, 10 in outer circle, 3 in center, different from HSK‑111 and RTS‑11.             'Dekatron' style unidirectional glow-transfer decimal counting tube. Argon fill. Nipple front.
EZ‑10B Elesta EZ‑10, EZ‑10A End N/A   Glow position 13 Pins, 10 in outer circle, 3 in center, different from HSK‑111 and RTS‑11.             'Dekatron' style unidirectional glow-transfer decimal counting tube. Argon fill? Nipple front.
F9057 CSF F9057AA, ZM1020 et al ? End 15.5mm (0.610")   0‑9 B13B             Low curved front.
F9057AA CSF F9057, ZM1020 et al ? End 15.5mm (0.610")   0‑9 B13B             Low curved front.
F9080B CSF ZM1080 ? Side 15.5mm (0.610")   0‑9 Pins ?             Filter coating. Nipple top.
FIP9A13A NEC   Special     9‑Digit, 7 segment, RH DP's, ½ in rightmost position only.               Multiplexed VFD panel.
G10/200E STC   End 20mm (0.790")   0‑9 B12A             Low curved front.
G10/241E STC 11TU7 ?, CV2223, CVX2223, G10/241K End       B12E             'Nomotron' unidirectional glow-transfer decimal counter.
G10/241K STC 11TU7 ?, CV2223, CVX2223, G10/241E End       B12E             'Nomotron' unidirectional glow-transfer decimal counter.
GA1 STC   End 18.5mm (0.735") 28.5mm (1.130") dia. X 36mm (1.425") tall A, B, C, D, E, F, G, H, I, J B13B: 1g             No anode mesh. Characters formed of spot-welded, round cross-section wire.
GA2 STC CV5238 End 18.5mm (0.735") 28.5mm (1.130") dia. X 36mm (1.425") tall K, L, M, N, O, P, Q, R, S, T B13B: 1h             No anode mesh. Characters formed of spot-welded, round cross-section wire.
GA12 Cerberus GR10J ? Side 30mm (1.181") 29mm (1.14") dia. X 68mm (2.68") tall 0‑9 B26A             Nipple top.
GA‑21 Cerberus   End 20mm (0.79")   0‑9               No anode mesh in front of digits.
GA‑28A ITT   Side 15.5mm (0.610") 19mm (0.748") dia. A, B, C, D, E, F, G B13D             Nipple top.
GC10/2P ETL   End N/A 19mm (0.748") dia. X 54mm (2.126") tall Glow position B7G 320   190       'Dekatron' glow-transfer decimal counting tube. Nipple front.
GC10/4B Adzam, ETL, Hivac, RFT <WF>, Zaerix CV1739, M2465‑401C End N/A 29.5mm (1.16") dia. X 99.75mm (3.93") tall Glow position K8A: 1b 350   191       'Dekatron' glow-transfer decimal counting tube.
GC10/4B/L ETL CV1739, CV6100, GC10/4B, M2465‑401C End N/A   Glow position K8A: 1d             'Dekatron' glow-transfer decimal counting tube.
GC10A ETL CV2199 End N/A   Glow position B12A             'Dekatron' glow-transfer decimal counting tube. Does this part number exist?
GC10B Baird-Atomic, ETL, Hivac CV2271, CV6044, GC10B/L, GC10B/S, Z303C End N/A   Glow position K8A: 1             'Dekatron' glow-transfer decimal counting tube.
GC10B/L ETL CV2271, CV6044, GC10B, GC10B/S, Z303C End N/A   Glow position K8A: 1             'Dekatron' glow-transfer decimal counting tube.
GC10B/S ETL CV2271, CV6044, GC10B, GC10B/L, Z303C End N/A   Glow position K8A: 1             'Dekatron' glow-transfer decimal counting tube. Suffix "/S" stands for "services", a Britsh military-spec designation.
GC10C/S     End N/A   Glow position K8A ?             Dekatron ? Suffix "/S" stands for "services", a Britsh military-spec designation.
GC10D Etelco, ETL, Hivac CV5143 End N/A   Glow position K8A: 1c             'Dekatron' glow-transfer decimal counting tube. Argon fill.
GC12/4B ETL   End N/A   Glow position K8A: 1e             'Dekatron' style glow-transfer dodecal (12‑position) counting tube.
GCA10G ETL   End N/A 29.5mm (1.161") dia. x 60mm (2.362") tall Glow position B27A             'Dekatron' style glow-transfer counting tube. Has auxiliary anodes which directly drive a Digitron (nixie-style) tube.
GI‑21 National Union   End     0‑9 B11A             Early style. No anode mesh. Numerals formed of spot-welded, round cross-section wire.
GN‑1 ITT, Lorenz, STC   End 25mm (1") 44mm (1.73") dia. X 62mm (2.44") tall 0‑9 B12A, key spline at bottom: 12, 10, 1, 2, 3, 4, 5, 6, 7, 8, 9,
Primer(?)=11		 200 200   2.5 3.0 - 3.5 5 Early style. Numerals formed of spot-welded, round cross-section wire.
GN‑2 ITT, Lorenz   End 25mm (1") 44mm (1.73") dia. X 62mm (2.44") tall 0‑9 B12A, key spline at bottom: 12, 10, 1, 2, 3, 4, 5, 6, 7, 8, 9 200 200   2.5 3.0 - 3.5 5 Early style.
GN‑3 ITT, Lorenz   End 15.49mm (0.610") 27.5mm (1.08") dia. X 35mm (1.38") tall 0‑9 B13B: 1 170 170     2.0 2.0 <4.0> Early style. High domed front.
GN‑4 ITT, Lorenz, STC 122P224, 1970‑0002, 5031, 5092, 5092A, 6844A, 8037, 8421, 50347, B‑5031, B‑5092, B‑5092A, B‑6844A, B‑50347, BD‑302, CK6844A, CK8037, CK8421, CV5278, CV9316, GN‑4A, GR10M, HB‑106, JAN‑6844A, JAN‑CB‑6844A, JAN‑CZ‑6844A, JAN‑8037, JAN‑8421, M2726‑102500, NL‑5092, NL‑6844A, NL‑8037, NL‑8421, NL‑50347, Z520M, Z560M, Z5600M, ZM1020, ZM1020/01, ZM1022 End 15.49mm (0.610") 27.5mm (1.08") dia. X 35mm (1.38") tall 0‑9 B13B: 1 170 170   1.5 <1.5> 2.0 <2.25> 3.0 <4.0> Filter coating. Low curved or high domed front. Used in Moviport C916 Timer.
GN‑4A ITT, Lorenz 122P224, 1970‑0002, 5031, 5092, 5092A, 6844A, 8037, 8421, 50347, B‑5031, B‑5092, B‑5092A, B‑6844A, B‑50347, BD‑302, CK6844A, CK8037, CK8421, CV5278, CV9316, GN‑4, GR10M, HB‑106, JAN‑6844A, JAN‑CB‑6844A, JAN‑CZ‑6844A, JAN‑8037, JAN‑8421, M2726‑102500, NL‑5092, NL‑6844A, NL‑8037, NL‑8421, NL‑50347, Z520M, Z560M, Z5600M, ZM1020, ZM1020/01, ZM1022 End 15.5mm (0.610") 28.5mm (1.12") dia. X 31mm (1.22") tall 0‑9 B13B: 1 170 170   1.5 <1.5> 2.0 3.0 <4.0> Low curved front. Suffix "A" on GN‑4A & higher-numbered members of the GN‑xx series indicates lack of filter coating.
GN‑4D ITT, Lorenz CV9732 End 15.5mm (0.610") 28.5mm (1.12") dia. X 31mm (1.22") tall 0‑9 B13B: 1 170 170   1.5 <1.5> 2.0 3.0 <4.0>  
GN‑4P ITT, Lorenz   End 15.5mm (0.610") 28.5mm (1.12") dia. X 31mm (1.22") tall 0‑9, LH DP B13B 170 170   1.5 <1.5> 2.0 3.0 <4.0> Filter coating.
GN‑5 ITT, Lorenz   End 25.4mm (1.00") 44.4mm (1.75") dia. X 61.9mm (2.44") tall 0‑9 B12A, key spline at bottom: 12, 10, 1, 2, 3, 4, 5, 6, 7, 8, 9 200 200   2.5 3.5 5.0 Filter coating. Low curved front.
GN‑5A ITT, Lorenz CV5351 End 25.4mm (1.00") 44.4mm (1.75") dia. X 61.9mm (2.44") tall 0‑9 B12A, key spline at bottom: 12, 10, 1, 2, 3, 4, 5, 6, 7, 8, 9 200 200   2.5 3.5 5.0 Low curved front.
GN‑6 ITT, Lorenz, STC GN‑6A, XN3, XN3F Side 14mm (0.55") 19mm (0.75") dia. X 47.6mm (1.87") tall 0‑9 SK‑116 ?
(11 Wires 38mm long, wire 8 at front): 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11		 200 200   1.25 1.6 - 1.7 2.5 Filter coating. Nipple top.
GN‑6A ITT, Lorenz, STC GN‑6, XN3, XN3F Side 14mm (0.55") 19mm (0.75") dia. X 47.6mm (1.87") tall 0‑9 SK‑116 ?
(11 Wires 38mm long, wire 8 at front): 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11		 200 200   1.25 1.6 - 1.7 2.5 Nipple top.
GN‑10                            
GN‑13A ITT   Side     0‑9 Wires             Nipple top.
GN‑35AH ITT   Side     0‑9 Wires             Nipple top.
GNP‑4A ITT M2726‑102600 End 15.5mm (0.610") 28.5mm (1.122") dia. X 31mm (1.220") tall 0‑9 B13B             Low curved front.
GNP‑7 ITT, STC   Side 15.5mm (0.610") 19mm (0.748") dia. 0‑9, LH & RH DP's B13D: 13, 12, 1, 2, 3, 4, 5, 8, 9, 10, 11, RH DP=6, LH DP=7 170 170 145 1.5 (DP 0.1) 2.0 3.0 <12> (DP 0.5 <4.0>) Nipple top. Filter coating.
GNP‑7A ITT   Side 15.5mm (0.610") 19mm (0.748") dia. 0‑9, LH & RH DP's B13D: 13, 12, 1, 2, 3, 4, 5, 8, 9, 10, 11, RH DP=6, LH DP=7 170 170 145 1.5 (DP 0.1) 2.0 3.0 <12> (DP 0.5 <4.0>) Nipple top.
GNP‑7AH ITT   Side 15.5mm (0.610") 19mm (0.748") dia. 0‑9, LH & RH DP's B13D: 13, 12, 1, 2, 3, 4, 5, 8, 9, 10, 11, RH DP=6, LH DP=7 180 180 155 1.5 (DP 0.1) 2.0 3.0 <25> (DP 0.5 <6.0>) Filter coating. Multiplex?
GNP‑7H ITT   Side 15.5mm (0.610") 19mm (0.748") dia. 0‑9, LH & RH DP's B13D: 13, 12, 1, 2, 3, 4, 5, 8, 9, 10, 11, RH DP=6, LH DP=7 180 180 155 1.5 (DP 0.1) 2.0 3.0 <25> (DP 0.5 <6.0>) For multiplexing?
GNP‑8 Lorenz   Side       Wires (circle)             Filter coating. Nipple top.
GNP‑17A ITT   Side 15.5mm (0.61") 19mm (0.75") dia. X 47mm (1.85") tall 0‑9, LH DP B13D, pin 9 at front: 1, 13, 3, 4, 5, 6, 8, 9, 10, 11, 12, LH DP=7             Nipple top.
GR2G ETL   Side 18mm (0.709") actual, 30mm (1.181") nominal 29.5mm (1.161") dia. X 78mm (3.071") tall +, − B26A, pin 3 at front: Anode=6, + =14, − =10 180 180 168 2.5   3 (−), 5 (+) 'Digitron' Nixie-style readout tube complementary to GR10G. Short rated life (4000 hrs.) Nipple top.
GR2H ETL   End 20mm (0.787") 32.4mm (1.276") dia. X 38mm (1.496") tall +, − B17A, pin 12 at top: Anode=16, + =6, − =15 150 150 130 0.75   2.0 (+), 1.5 (−) 'Digitron' Nixie-style readout tube complementary to GR10H. Nipple in base.
GR3A                            
GR4G ETL   Side 30mm (1.181") 29.5mm (1.161") dia. X 78mm (3.071") tall ¼, ½, ¾, 1 B26A, pin 3 at front: Anode=6, ¼=17, ½=7, ¾=8, 1=15 200 (250 recomm.) 200 170 4.25 5.0 7.0 (¼, ½, ¾), 5.0 (1) 'Digitron' Nixie-style readout tube. Nipple top. Short rated life (3500 hrs.) Symbol tube complementary to GR10G. Equalizing resistor recommended, at Vsupply=250VDC: 10kΩ on cathode "1".
GR7M ETL   End 15.5mm (0.610") 30mm (1.181") dia. X 38mm (1.496") tall A, V, Ω, +, −, ~, % B13B: Anode=2, A=10, V=6, Ω=3, + =7, − =12, ~=9, %=4 160 160 140 1.0 <1.5> 2.0 <7.0> 2.5 <10.0> 'Digitron' Nixie-style readout tube. Filter coating. Low curved front. Nipple in base. "Long life" (rated >30,000 hrs.)
GR7M/4                            
GR7M/U Hivac   End 15.5mm (0.610") 30mm (1.181") dia. X 38mm (1.496") tall A, V, Ω, +, −, ~, % B13B: Anode=2, A=10, V=6, Ω=3, + =7, − =12, ~=9, %=4 160 160 140 1.0 <1.5> 2.0 <7.0> 2.5 <10.0> 'Numicator' Nixie-style readout tube. Filter coating. Low curved front. Nipple in base.
GR10A Adzam, Baird-Atomic, ETL, Hivac CV5291, Z503M ? End N/A   Glow position               'Register Tube' similar in appearance to a 'Dekatron' style glow-transfer counter, but without guide electrodes. Does not count, but provides display closely resembling appearance of Dekatrons.
GR10G ETL CV8090 Side 30mm (1.181") 29.5mm (1.161") dia. X 78mm (3.071") tall 0‑9 B26A, pin 3 at front: 6, 14, 10, 9, 7, 5, 2, 1, 17, 16, 15 220 220 180 5.5 6.5 9 'Digitron' Nixie-style readout tube. Nipple top. Reverse viewable. Short rated life (5000 hrs.) Equalizing resistors recommended: 8.2kΩ on cathode "1" & 4.7kΩ on cathode "7".
GR10H ETL   End 19mm (0.748") 32.4mm (1.276") dia. X 38mm (1.496") tall 0‑9 B17A, pin 12 at front: 12, 4, 13, 14, 1, 15, 11, 10, 5, 6, 2 150 150 140 1.0 2.0 2.5 'Digitron' Nixie-style readout tube. Nipple in base. Short rated life (4000 hrs.)
GR10J ETL, Hivac GR10JF Side 30mm (1.181") 29.5mm (1.161") dia. X 78mm (3.071") tall 0‑9 B26A, pin 3 at front: 6, 14, 10, 9, 7, 5, 2, 1, 17, 16, 15 150 150 145 1.0 3.0 4.0 'Digitron' (ETL) or 'Numicator' (Hivac) Nixie-style readout tube. Nipple top. "Long life" (rated 10,000 hrs.) At least some Hivac examples have only 3 of the 9 pins in the inner circle, but ETL datasheet shows all pins present.
GR10JF ETL GR10J Side 30mm (1.181") 29.5mm (1.161") dia. X 78mm (3.071") tall 0‑9 B26A, pin 3 at front: 6, 14, 10, 9, 7, 5, 2, 1, 17, 16, 15 150 150 145 1.0 3.0 4.0 'Digitron' Nixie-style readout tube. Filter coating. Nipple top. "Long life" (rated 10,000 hrs.) At least some examples have only 3 of the 9 pins in the inner circle. Used in TM51C Universal Counter-Timer by Levell Electronics Ltd., England.
GR10K ETL CV5842 End 19mm (0.748") 32.4mm (1.276") dia. X 38mm (1.496") tall 0‑9 B17A, pin 12 at top: 12, 4, 13, 14, 1, 15, 11, 10, 5, 6, 2 150 150 140 1.0 1.4 1.8 'Digitron' Nixie-style readout tube. Nipple in base. "Long life" (rated 10,000 hrs.) No anode mesh in front of cathodes.
GR10M ETL, Hivac 122P224, 1970‑0002, 5031, 5092, 5092A, 6844A, 8037, 8421, 50347, B‑5031, B‑5092, B‑5092A, B‑6844A, B‑50347, BD‑302, CK6844A, CK8037, CK8421, CV5278, CV9316, GN‑4, GN‑4A, GR10M, HB‑106, JAN‑6844A, JAN‑CB‑6844A, JAN‑CZ‑6844A, JAN‑8037, JAN‑8421, M2726‑102500, NL‑5092, NL‑6844A, NL‑8037, NL‑8421, NL‑50347, Z520M, Z560M, Z5600M, ZM1020, ZM1020/01, ZM1022 End 15.5mm (0.610") 30mm (1.181") dia. X 38mm (1.5") tall 0‑9 B13B: 1 170 170 140 1.0 <1.0> 2.0 <7.0> 2.5 <10.0> 'Digitron' Nixie-style readout tube. Filter coating. Low curved front. Nipple in base. "Long life" (rated >30,000 hrs.)
GR10M/U ETL ?, Hivac ?   End     0‑9                
GR10N ETL ?, Hivac ?   Side 60mm (2.36") 45mm (1.77") dia. X 105mm (4.13") tall 0‑9 B17A             Nixie-style readout tube. Smooth top, nipple in base. No anode mesh.
GR10W ETL   Side 15mm (0.591") 19mm (0.748") dia. X 48mm (1.890") tall 0‑9 11 Wires 38mm (1.5") long, in circle as 14 wires w/ key gap, wires 5, 7 & 9 omitted, wires 7 & 8 at front: 14, 13, 1, 2, 3, 4, 6, 8, 10, 11, 12 220 220 160 2.5 <2.5> 3.0 <3.0> 4.0 <4.0> 'Digitron' Nixie-style readout tube. Nipple top. Short rated life (2000 hrs.) Reverse viewable?
GR12G ETL   Side 30mm (1.181") 29.5mm (1.161") dia. X 78mm (3.071") tall A, B, C, D, E, F, G, H, I, J, K, L B26A, pin 3 at front: Anode=13, A=6, B=1, C=14, D=17, E=16, F=15, G=3, H=7, I=10, J=5, K=9, L=8 220 (250 recomm.) 220 170-185 (cathode dependent) 4.0   5.0-9.0 (cathode dependent) 'Digitron' Nixie-style readout tube. Nipple top. Equalizing resistors recommended, at Vsupply=250VDC: 8.2kΩ on cathode "I" & 4.7kΩ on cathode "L".
GR12H ETL   Side 30mm (1.181") 29.5mm (1.161") dia. X 78mm (3.071") tall E, L, M, N, P, R, S, T, U, V, W, X B26A, pin 3 at front: Anode=13, E=17, L=9, M=6, N=7, P=1, R=16, S=3, T=10, U=14, V=5, W=8, X=15 220 (250 recomm.) 220 175-185 (cathode dependent) 4.0   5.5 or 9.0 (cathode dependent) 'Digitron' Nixie-style readout tube. Nipple top. Equalizing resistor recommended, at Vsupply=250VDC: 4.7kΩ on cathode "T".
GR‑110 Rodan (Okaya) CD91 Side 9.5mm (0.375") 10.5mm (0.41") dia. X 31mm (1.22") tall 0‑9, ?H DP Wires 170 <190>     1.2 (DP 0.15) 1.9 <5> (DP 0.3 <0.9>) 2.6 (DP 0.5) Designed for multiplexing. Nipple top.
GR‑111P Rodan (Okaya)   Side                     Nipple top.
GR‑111Pa Rodan (Okaya)                          
GR112 Rodan (Okaya)   Side 12mm (0.472") 15mm (0.591") dia. X 32mm (1.260") tall 0‑9, RH DP               Designed for multiplexing.
GR‑113   CD82 Side 13mm (0.51") 13mm (0.51") dia. X 37mm (1.45") tall 0‑9, ?H DP Wires 170 <190>     2.3 (DP 0.2) 2.75 <10> (DP 0.3 <1.0>) 3.3 (DP 0.4) Designed for multiplexing.
GR‑115   CD78 Side 9.5mm (0.37") 13mm (0.51") dia. X 37mm (1.46") tall 0‑9, ?H DP Wires 170 <170>     2.3 (DP 0.2) 2.75 <7.2> (DP 0.3 <0.8>) 3.3 (DP 0.4) Designed for multiplexing.
GR‑116 Rodan (Okaya) CD92 Side 13mm (0.51") 13.5mm (0.53") dia. X 32mm (1.26") tall 0‑9, LH & RH DP's SK‑207: 1, 50mm (1.97") long wires 170 <175> 170 <165> 0.5 <11> (DP 0.05 <1>) 1.2 <14> (DP 0.4 <4>) 1.9 <17> (DP 0.6 <6>) Designed for multiplexing. Listed peak current values are for 1/20 duty cycle. Nipple top.
GR116D Rodan (Okaya) 1970#&8209;0042, 5870S, 5870ST, B‑5870S, B‑5870ST, NL‑5870S, NL‑5870ST, ZM1332, ZM1332K Side     0‑9, LH & RH DP's SK‑207: 1a 170 170 140 2.3 3.5 5  
GR116P Rodan (Okaya)   Side     0‑9 Wires             Nipple top.
GR150A                            
GR‑201 General Radiotelephone CD11 End 18mm (0.709") 30mm (1.18") dia. X 45.5mm (1.79") tall 0‑9 TSB‑14P 170 170   1.5 2.5 3.5 Low curved front.
GR‑311 Rodan (Okaya) CD95 Side 70mm (2.76") 51mm (2.0") dia. X 145mm (5.71") tall   B12A 200     12 15 18  
GR‑401 Rodan (Okaya) CD27 End 54mm (2.13") 72mm (2.83") dia. X 86mm (3.39") tall 0‑9 B12A 200 200   7.5 10 12.5  
GR‑411 Rodan (Okaya) A‑17, CD47, GR‑414 Side 135mm
(5.31")		 72mm (2.83") dia. X 220mm (8.66") tall 0‑9 B12A: 12, 10, 1, 2, 3, 4, 5, 6, 7, 8, 9 250 250 160 17.5 25 32.5 Monstrous!
GR‑414 Rodan (Okaya) A‑17, CD47, GR‑411 Side 135mm
(5.31")		 72mm (2.83") dia. X 220mm (8.66") tall 0‑9 B12A: 12, 10, 1, 2, 3, 4, 5, 6, 7, 8, 9 250 250 160 17.5 25 32.5 Monstrous!
GR‑1031           +, −, ~, 1 12 Wires ?              
GR‑1406 Rodan (Okaya)       50mm (2") tall ?                  
GR‑1620 Rodan (Okaya)   Side 130mm
(5.12")		 75mm (3") dia. X 210mm (8.27") tall kg, t B12A: Anode=12, K"kg"=2, K"t"=1             Monstrous!
Units indicator for weight scale, complementary to CD47 (a.k.a. GR‑411 & GR‑414).
GR‑1706   CD27 ?     Large                  
GRD7                            
GS4 ITT GS4A, Z561M, Z5610M, ZM1021, ZM1023 End 15.5mm (0.610") 28.5mm (1.12") dia. X 31mm (1.22") tall A, V, Ω, +, −, ~, %, : B13B: Anode=2, A=10, V=6, Ω=3, +=7, − =12, ~=9, %=4, :=8[upper dot]&1[lower dot] 170 170   1.5 <1.5> 2.2 3.0 <10> Symbols for test equipment. Filter coating. Colon character (:) is undocumented use of "i.c." (internal connection) pins to illuminate end caps of cathode support posts; may require pair of cathode resistors or not work at all on some tubes. I recommend cathode resistors equal to or greater than the anode resistance on both pins 1 and 8 when used in this configuration.
GS4A ITT GS4, Z561M, Z5610M, ZM1021, ZM1023 End 15.5mm (0.610") 28.5mm (1.12") dia. X 31mm (1.22") tall A, V, Ω, +, −, ~, %, : B13B: Anode=2, A=10, V=6, Ω=3, +=7, − =12, ~=9, %=4, :=8[upper dot]&1[lower dot] 170 170   1.5 <1.5> 2.2 3.0 <10> Symbols for test equipment. Colon character (:) is undocumented use of "i.c." (internal connection) pins to illuminate end caps of cathode support posts; may require pair of cathode resistors or not work at all on some tubes. I recommend cathode resistors equal to or greater than the anode resistance on both pins 1 and 8 when used in this configuration.
GS6 ITT, STC ZM1081 Side 14mm (0.55") 19mm (0.748") dia. X 47.5mm (1.870") tall +, −, ~ 4 Wires             Filter coating. Nipple top.
GS6A ITT ZM1083 Side 14mm (0.55") 19mm (0.748") dia. X 47.5mm (1.870") tall +, −, ~ 4 Wires              
GS10A                            
GS10B                            
GS10C Baird-Atomic, ETL 6476, 6476/A, CK6476, CV2325, GS10C/S, M2465‑402, Z502S End N/A   Glow position B12E             'Dekatron' glow-transfer decimal counting/selector tube.
GS10C/S Baird-Atomic, EEI, ETL 6476, 6476/A, CK6476, CV2325, GS10C, M2465‑402, Z502S End N/A   Glow position B12E             'Dekatron' glow-transfer decimal counting/selector tube. Suffix "/S" stands for "services", a Britsh military-spec designation.
GS10D Hivac M2465‑403C End N/A   Glow position B12E             'Dekatron' style glow-transfer decimal counter/selector tube. Argon fill.
GS10H Hivac CV8630 End N/A   Glow position B17A             'Dekatron' style glow-transfer decimal counting tube.
GS12/B     End N/A   Glow position               'Dekatron' style glow-transfer decimal counting tube?
GS12C ETL CV1740 End N/A   Glow position Special 16 contact             'Dekatron' glow-transfer dodecal (12-position) counter/selector tube.
GS12D Baird-Atomic, ETL   End N/A   Glow position B12E+             'Dekatron' glow-transfer dodecal (12-position) counter/selector tube.
GS16                            
GS16A                            
GS17A ITT   Side 15.5mm (0.610") ?   +, −, ~, (spiral) Wires             Nipple top.
GS18                            
GS44                            
GSA10G ETL   End N/A 29.5mm (1.161") dia. x 60mm (2.362") tall Glow position B27A             'Dekatron' style glow-transfer counting/selector tube. Has auxiliary anodes which directly drive a Digitron (nixie-style) tube.
H15R Hitachi                          
H1501 Hitachi   Side   13mm (0.512") dia. X 32mm (1.260") tall I, II, E, − 18 Wires ?             Neon. Symbols are arrayed on a single plane rather than stacked.
HB‑101 Babcock   Special                     High Brightness planar neon gas discharge 'Panaplex' readout.
HB‑102 Babcock   Special                     High Brightness planar neon gas discharge 'Panaplex' readout.
HB‑105 Burroughs B‑9012 End 2.75mm (0.10") 26.5mm (1.040") dia. X 35mm (1.380") tall 0‑9 13 Pins, 10 in circle w/ 3 in center (sockets HSK‑111, SK‑111‑H & SK‑111‑V)             'Pixie' position indicator tube. High domed front.
HB‑106 Burroughs 122P224, 1970‑0002, 5031, 5092, 5092A, 6844A, 8037, 8421, 50347, B‑5031, B‑5092, B‑5092A, B‑6844A, B‑50347, BD‑302, CK6844A, CK8037, CK8421, CV5278, CV9316, GN‑4, GN‑4A, GR10M, JAN‑6844A, JAN‑CB‑6844A, JAN‑CZ‑6844A, JAN‑8037, JAN‑8421, M2726‑102500, NL‑5092, NL‑8037, NL‑8421, NL‑50347, Z520M, Z560M, Z5600M, ZM1020, ZM1020/01, ZM1022 End 15.5mm (0.610") 27.5mm (1.080") dia. X 35mm (1.380") tall 0‑9 B13B: 1             High domed front. Narrow viewing angle.
HB‑233 Babcock   Special                     High Brightness planar neon gas discharge 'Panaplex' readout.
HB‑332 Babcock SP‑332 Special                     High Brightness planar neon gas discharge 'Panaplex' readout.
HB‑333 Babcock SP‑333 Special                     High Brightness planar neon gas discharge 'Panaplex' readout.
HB‑352 Babcock SP‑352 Special                     High Brightness planar neon gas discharge 'Panaplex' readout.
HB‑353 Babcock 411‑290, 411‑0290, SP‑353 Special 14mm (0.55")   3‑Digit, 7 segment, RH DP's 30 Pins, special arrangement             High Brightness planar neon gas discharge 'Panaplex' readout. Separate anodes allow single-digit multiplexing.
HB‑356 Babcock SP‑356 Special                     High Brightness planar neon gas discharge 'Panaplex' readout.
HB‑505 Burroughs                          
ILZ1‑1‑73 (ИЛЗ1‑1‑7)     Special 80mm (3.15") 140mm (5.5") tall X 80mm (3.15") wide X ??mm (??") thick 7 Segment 10 IC-style pins, SIP             Russia/USSR. Single-digit VFD.
ILZ1‑1‑9 (ИЛЗ1‑1‑9)     Special   35mm (1.38") tall X 25mm (0.98") wide X ??mm (??") thick 1½‑Digit, 7 segment 14-Pin DIP             Russia/USSR. VFD.
ILZ1‑14‑8L (ИЛЗ1‑14‑8Л)     Special   18mm (0.71") dia. X 135mm (5.31") long 14‑Digit, 7 segment, RH DP's Wires (both ends)             Russia/USSR. VFD.
IN‑1 (ИН‑1)     End 18mm (0.709") 35mm (1.38") dia. X 65mm (2.56") tall 0‑9 U11: 11, 10, 1, 2, 3, 4, 5, 6, 7, 8, 9 200 200 100     2.5 Russia/USSR.
IN‑2 (ИН‑2)     End 9mm (0.35") 19mm (0.75") dia. X 40mm (1.57") tall 0‑9 11 Pins, circle w/ key gap: 11, 10, 1, 2, 3, 4, 5, 6, 7, 8, 9 200 200 100     1.5 Russia/USSR. Nipple on side. High domed front.
IN‑3 (ИН‑3)         7.2mm (0.283") dia. X 27mm (1.063") tall ??? ?               Russia/USSR.
IN‑3B (ИН‑3Б)           ?               Russia/USSR.
IN‑3V‑1 (ИН‑3В‑1)           ?               Russia/USSR. Part numbers uncertain.
IN‑4 (ИН‑4)     End 16mm (0.630") 31mm (1.220") dia. X 46mm (1.81") tall 0‑9 14 Pins 170 170 160     3.0 Russia/USSR. Bi‑quinary. Cathode pairs must be connected externally. Nipple in base. Low curved front.
IN‑5A (ИН‑5А)     End 12mm (0.472") 20mm (0.790") dia. X 42mm (1.654") tall а, х, О, Х, Z 11 Pins             Russia/USSR. Symbols for test equipment. Complementary to IN‑2
IN‑5B (ИН‑5Б)     End 12mm (0.472") 20mm (0.790") dia. X 42mm (1.654") tall у, В, О, Ѕ, У 11 Pins             Russia/USSR. Symbols for test equipment. Complementary to IN‑2
IN‑6 (ИН‑6)     End                     Russia/USSR. Neon strobe bulb, not a readout.
IN‑7 (ИН‑7)     End 16mm (0.630") 31mm (1.220") dia. X 44mm (1.732") tall m, n, А, К, М, У, +, −, Ω, % 14 Pins             Russia/USSR. Symbols for test equipment. Complementary to IN‑4. Low curved front.
IN‑7A (ИН‑7А)     End 16mm (0.630") 31mm (1.220") dia. X 44mm (1.732") tall n, К, М, µ, +, −, % 14 Pins             Russia/USSR. Symbols for test equipment. Complementary to IN‑4. Low curved front.
IN‑7B (ИН‑7Б)     End 16mm (0.630") 31mm (1.220") dia. X 44mm (1.732") tall Hz, S, V, Ω 14 Pins             Russia/USSR. Symbols for test equipment. Complementary to IN‑4. Low curved front.
IN‑8 (ИН‑8)     Side 18mm (0.709") 17mm (0.670") dia. X 57mm (2.244") tall 0‑9 11 Pins 170 170 150     2.5 Russia/USSR. Nipple top.
IN‑8‑2 (ИН‑8‑2)     Side 18mm (0.709") 19mm (0.748") dia. X 55mm (1.969") tall 0‑9, RH DP 12 Wires 170 170 150     2.5 (DP 0.3) Russia/USSR. Nipple top.
IN‑9 (ИН‑9)         10mm (0.394") dia. X 140mm (5.512") long 'analog bargraph' current indicating device       max. 140     12 Russia/USSR.
IN‑12A (ИН‑12А)     End (compact) 18mm (0.709") 21mm (0.827") X 32mm (1.260") X 35mm (1.38") tall 0‑9 SK‑136: 1f 170 170       2.5 Russia/USSR. Nipple in base. Base dimensions may vary from the (U.S.) standard SK‑136 configuration.
IN‑12B (ИН‑12Б)     End (compact) 18mm (0.709") 21mm (0.827") X 32mm (1.260") X 35mm (1.38") tall 0‑9, LH DP SK‑136: 1g 170 170 170 (?)     2.5 (DP 0.3) Russia/USSR. Nipple in base. Base dimensions may vary from the (U.S.) standard SK‑136 configuration.
IN‑13 (ИН‑13)     Side N/A 11mm (0.433") dia. X 160mm (6.3") long 'analog bargraph' current indicating device     140 102-107 0.4   4.0 Russia/USSR.
IN‑14 (ИН‑14)     Side 18mm (0.709") 19mm (0.748") dia. X 55mm (2.165") tall 0‑9, LH & RH DP's 13 Wires, 35mm (1.38") long: 1, 12, 3, 4, 5, 6, 7, 8, 9, 10, 11, LH DP=2, RH DP=13 170 170 170 (?)     2.5 (DP 0.3) Russia/USSR. Complementary to symbol tubes IN‑19A, IN‑19B & IN‑19V. Provided with insulating standoff/spacer. Nipple top.
IN‑15A (ИН‑15А)     End (compact) 18mm (0.709") 21mm (0.827") X 31mm (1.220") X 35mm (1.38") tall +, −, %, М, k, m, µ, n, Р, П SK‑136 (11 Pins): Anode=1, +=5, − =4, %=10, М=7, k=8, m=6, µ=2, n=11, Р=3, П=9 170 170 170 (?)     2.5 Russia/USSR. Symbols for test equipment. Nipple in base. Base dimensions may vary from the (U.S.) standard SK‑136 configuration.
IN‑15B (ИН‑15Б)     End (compact) 18mm (0.709") 21mm (0.827") X 31mm (1.220") X 35mm (1.38") tall А, V, Ω, S, Hz, F, Н, W SK‑136 (11 Pins): Anode=1, А=11, V=7, Ω=10, S=8, Hz=5, F=3, Н=6, W=2 170 170 170 (?)     2.5 Russia/USSR. Symbols for test equipment. Nipple in base. Base dimensions may vary from the (U.S.) standard SK‑136 configuration.
IN‑16 (ИН‑16)     Side 13mm (0.512") 13mm (0.512") dia. X 45mm (1.772") tall 0‑9, LH & RH DP's 13 Wires, 35mm (1.38") long: 1, 13, 2, 9, 4, 6, 7, 8, 3, 11, 12, LH DP=5, RH DP=10 170 170 115-170 (?)     2.0 (DP 0.3) Russia/USSR. Nipple top. Provided with insulating standoff/spacer.
IN‑17 (ИН‑17)     End (compact) 9mm (0.35") 14mm (0.55") X 20mm (0.79") X 26mm (1.02") tall 0‑9 12 Wires, 35mm (1.38") long: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 200 170 105 1.5   2.0 Russia/USSR. Nipple in base. Provided with insulating standoff/spacer 8mm (0.315") thick. Fill nipple extends into spacer making installed total height 28mm (1.10") max.
IN‑18 (ИН‑18)     Side 40mm (1.575") 32mm (1.26") dia. X 86mm (3.39") tall 0‑9 14 Pin Russian, pin 4 at front: 4&12, 13, 11, 10, 7, 2, 3, 5, 6, 9, 14 200 170 150 4 6 7 Russia/USSR. Smooth top. Nipple in base.
IN‑19A (ИН‑19А)     Side 18mm (0.709") 19mm (0.748") dia. X 55mm (2.165") tall К, М, Р, m, µ, n, %, °С 13 Wires, 35mm (1.38") long: Anode=1, К=5, М=9, Р=10, m=12, µ=6, n=3, %=8, °С=7 170 170 170 (?)     2.5 Russia/USSR. Symbols for test equipment. Complementary to IN‑14. Provided with insulating standoff/spacer. Nipple top.
IN‑19B (ИН‑19Б)     Side 18mm (0.709") 19mm (0.748") dia. X 55mm (2.165") tall А, V, Ω, S, Hz, F, Н, Т 13 Wires, 35mm (1.38") long: Anode=1, А=5, V=12, Ω=6, S=8, Hz=7, F=9, Н=3, Т=10 170 170 170 (?)     2.5 Russia/USSR. Symbols for test equipment. Complementary to IN‑14. Provided with insulating standoff/spacer. Nipple top.
IN‑19V (ИН‑19В)     Side 18mm (0.709") 19mm (0.748") dia. X 55mm (2.165") tall +, −, ~, dB, А/В, <, >, П 13 Wires, 35mm (1.38") long 170 170 170 (?)     2.5 Russia/USSR. Symbols for test equipment. Complementary to IN‑14. Provided with insulating standoff/spacer. Nipple top.
IN‑28 (ИН‑28)           ?               Russia/USSR.
IN‑31 (ИН‑31)                           Russia/USSR.
IN‑34 (ИН‑34)                           Russia/USSR.
IN‑35 (ИН‑35)                           Russia/USSR.
IN‑36 (ИН‑36)                           Russia/USSR.
IN‑42 (ИН‑42)           ?               Russia/USSR.
IND‑0300 KGM/General Radio   Special                     "Numerik Indicator" incandescent edge-lit lightguide readout.
IND‑1803 KGM/General Radio   Special     0‑9, LH & RH DP's ?               "Numerik Indicator" incandescent edge-lit lightguide readout.
IV‑1 (ИВ‑1)     Side     7 Segment ? Wires             Russia/USSR. Nipple top. Incandescent similar to Numitron?
IV‑1A (ИВ‑1А)     Side     7 Segment ? Wires             Russia/USSR. Nipple top. Incandescent similar to Numitron?
IV‑4 (ИВ‑4)   DG‑19 ? Side   20mm (0.790") dia. X 45mm (1.772") tall 18 Segment Cyrillic alphanumeric Wires             Russia/USSR. Nipple top. VFD.
IV‑6 (ИВ‑6)     Side   12mm (0.472") dia. X 40mm (1.575") tall 7 Segment, RH DP Wires (11?)             Russia/USSR. Nipple top. VFD.
IV‑8 (ИВ‑8)     Side   10mm (0.394") dia. X 35mm (1.378") tall 7 Segment, RH DP Wires             Russia/USSR. Nipple top. VFD.
IV‑9 (ИВ‑9)     Side 10mm (0.394") 10mm (0.394") dia. X 32mm (1.260") tall 7 Segment, RH DP Wires             Russia/USSR. Nipple top. Incandescent filament readout similar to Numitron.
IV‑11 (ИВ‑11)     Side   23mm (0.91") dia. X 60mm (2.36") tall 7 Segment, RH DP Wires             Russia/USSR. VFD. Nipple top.
IV‑13 (ИВ‑13)     Side   25mm (0.98") dia. X 45mm (1.77") tall 8 Segment numeric (normal 7 segments + 1 centered vertical segment for "+") Pins             Russia/USSR. Incandescent filament readout similar to Numitron. Nipple top.
IV‑16 (ИВ‑16)                           Russia/USSR. VFD ?
IV‑17 (ИВ‑17)     Side   20mm (0.790") dia. X 50mm (1.969") tall 18 Segment Cyrillic alphanumeric Wires             Russia/USSR. VFD. Nipple top.
IV‑18 (ИВ‑18)     Special   18mm (0.709") dia. X 112mm (4.409") long 8‑Digit, 7 segment, RH DP's, −, oval spot above the "−" Wires on right end.             Russia/USSR. Nipple on left end. VFD for calculators.
IV‑19 (ИВ‑19)     End (compact)   17mm (0.670") dia. X 20mm (0.790") tall ? 7 Segment, RH DP Pins             Russia/USSR. Incandescent filament readout similar to Numitron.
IV‑20 (ИВ‑20)                           Russia/USSR. VFD ?
IV‑22 (ИВ‑22)     End (compact)   20mm (0.79") X 30mm (1.18") X ? 7 Segment, RH DP Pins             Russia/USSR. VFD. Has grid for ease of multiplexing. Available with or without filter coating (different part number?)
IV‑26 (ИВ‑26)     Special   12mm (0.472") dia. X 115mm (4.528") long Appears similar to "bargraph" type tuning indicator but display is a row of 7 oval-shaped spots. Wires             Russia/USSR. Nipple. VFD ?
IV‑27 (ИВ‑27)                           Russia/USSR. VFD ?
IV‑28 (ИВ‑28)                           Russia/USSR. VFD ?
IV‑28A (ИВ‑28А)                           Russia/USSR. VFD ?
IV‑66 (ИВ‑66)                           Russia/USSR. VFD ?
IVLM1‑1‑7 (ИВЛМ1‑1‑7)     Special   7mm (0.28") dia. X 75mm (2.95") long Appears similar to "bargraph" type tuning indicator but display is a row of 7 round spots. Wires             Russia/USSR. VFD ?
J‑4004 Raytheon   Side     0‑9 ? Pins ?             Nipple top.
JAN‑6700 Burroughs 6700, B‑6700, CV5277, ET51, JAN‑CBSC‑6700 N/A N/A   None B26A             'Beam‑X Switch' crossed-field electron beam decimal counting tube. External magnet.
JAN‑6844A National Electronics, Raytheon 122P224, 1970‑0002, 5031, 5092, 5092A, 6844A, 8037, 8421, 50347, B‑5031, B‑5092, B‑5092A, B‑6844A, B‑50347, BD‑302, CK6844A, CK8037, CK8421, CV5278, CV9316, GN‑4, GN‑4A, GR10M, HB‑106, JAN‑CB‑6844A, JAN‑CZ‑6844A, JAN‑8037, JAN‑8421, M2726‑102500, NL‑5092, NL‑8037, NL‑8421, NL‑50347, Z520M, Z560M, Z5600M, ZM1020, ZM1020/01, ZM1022 End 15.5mm (0.610") 27.5mm (1.080") dia. X 35mm (1.380") tall 0‑9 B13B: 1 170 170 135 1.5 <1.5> 2.25 <2.75> 3.0 <4.0> High domed front. Narrow viewing angle.
JAN‑7009 National Electronics 4021, 4032, 4041, 5810, 7009, 7977, 8502, B‑4021, B‑4021AL, B‑4021G, B‑4021L, B‑4032, B‑4041, B‑4081, B‑5810, B‑7009, BD‑200S, BD‑244, JAN‑7977, JAN‑8502, NL‑4021, NL‑4021A, NL‑4032, NL‑4041, NL‑7009, NL‑7977, NL‑8502, ZM1120, ZM1122 End 8mm (0.310") 16.5mm (0.650") dia. X 23.5mm (0.925") tall 0‑9 SK‑116: 1 170 170 102 0.7 <0.7> 1.0 1.2 <2.0> High domed front.
JAN‑7977 National Electronics 4021, 4032, 4041, 5810, 7009, 7977, 8502, B‑4021, B‑4021AL, B‑4021G, B‑4021L, B‑4032, B‑4041, B‑4081, B‑5810, B‑7009, BD‑200S, BD‑244, JAN‑7009, JAN‑8502, NL‑4021, NL‑4021A, NL‑4032, NL‑4041, NL‑7009, NL‑7977, NL‑8502, ZM1120, ZM1122 End 8mm (0.310") 17mm (0.680") dia. X 24mm (0.940") tall 0‑9 SK‑116: 1 170 170 154 0.7 <0.7> 1.0 1.4 <2.0> High domed front. Silicone rubber outer sleeve (thickness included in tube diameter). Long life (>200K hrs.)
JAN‑8037 Burroughs, National Electronics, Raytheon 122P224, 1970‑0002, 5031, 5037, 5092, 5092A, 6844A, 8037, 8421, 50347, B‑5031, B‑5037, B‑5092, B‑5092A, B‑6844A, B‑50347, BD‑302, CK6844A, CK8037, CV5278, CV9316, GN‑4, GN‑4A, GR10M, HB‑106, JAN‑6844A, JAN‑CB‑6844A, JAN‑CZ‑6844A, NL‑6844A, NL‑8037, NL‑8421, NL‑50347, Z520M, Z560M, Z5600M, ZM1020, ZM1020/01, ZM1022 End 15.5mm (0.610") 26mm (1.024") dia. X 28.5mm (1.122") tall 0‑9 B13B: 1 170 170 147 1.5 <1.5> 2.25 <2.5> 3.0 <3.5> High domed front.
JAN‑8421 National Electronics 122P224, 1970‑0002, 5031, 5092, 5092A, 6844A, 8037, 8421, 50347, B‑5031, B‑5092, B‑5092‑A, B‑6844A, B‑50347, BD‑302, CK6844A, CK8037, CK8421, CV5278, CV9316, GN‑4, GN‑4A, GR10M, HB‑106, JAN‑6844A, JAN‑CB‑6844A, JAN‑CZ‑6844A, JAN‑8037, M2726‑102500, NL‑5092, NL‑6844A, NL‑8037, NL‑8421, NL‑50347, Z520M, Z560M, Z5600M, ZM1020, ZM1020/01, ZM1022 End 15.5mm (0.610") 27.5mm (1.080") dia. X 35mm (1.380") tall 0‑9 B13B: 1 170 170 147 1.5 <1.5> 2.25 <2.5> 3.0 <3.5> Low curved front.
JAN‑8422 Raytheon 1970‑0009, 5991, 8422, 4205991, B‑5961, B‑5991, B‑8422, B‑59917, B‑59917A, KS‑19944,L1, NL‑5961, NL‑5991, NL‑8422, ZM1100, ZM1102, ZM1180, ZM1182 End (compact) 15.5mm (0.610")   0‑9 SK‑136: 1              
JAN‑8423 Burroughs, National Electronics 7153, 8423, B‑6033, B‑6091, B‑7153, BD‑206, NL‑7153, NL‑8423 End 20.5mm (0.808") 34.5mm (1.350") dia. X 38.5mm (1.512") tall 0‑9 B13B: 1 170 170 147 1.5 <1.5> 3.0 <3.25> 4.0 <4.5> Low curved front.
JAN‑8502 National Electronics 4021, 4032, 4041, 5810, 7009, 7977, 8502, B‑4021, B‑4021AL, B‑4021G, B‑4021L, B‑4032, B‑4041, B‑4081, B‑5810, B‑7009, BD‑200S, BD‑244, JAN‑7009, JAN‑7977, NL‑4021, NL‑4021A, NL‑4032, NL‑4041, NL‑7009, NL‑7977, NL‑8502, ZM1120, ZM1122 End 8mm (0.310") 16.5mm (0.650") dia. X 23.5mm (0.925") tall 0‑9 SK‑116: 1 120 120 102 0.7 <0.7> 1.0 1.4 <2.0> Low voltage design. High domed front.
JAN‑CB‑6844A National Electronics, Raytheon 122P224, 1970‑0002, 5031, 5092, 5092A, 6844A, 8037, 8421, 50347, B‑5031, B‑5092, B‑5092A, B‑6844A, B‑50347, BD‑302, CK6844A, CK8037, CK8421, CV5278, CV9316, GN‑4, GN‑4A, GR10M, HB‑106, JAN‑6844A, JAN‑CZ‑6844A, JAN‑8037, JAN‑8421, M2726‑102500, NL‑5092, NL‑8037, NL‑8421, NL‑50347, Z520M, Z560M, Z5600M, ZM1020, ZM1020/01, ZM1022 End 15.5mm (0.610") 27.5mm (1.080") dia. X 35mm (1.380") tall 0‑9 B13B: 1 170 170 135 1.5 <1.5> 2.25 <2.75> 3.0 <4.0> High domed front. Narrow viewing angle.
JAN‑CBSC‑6700 Burroughs 6700, B‑6700, CV5277, ET51, JAN‑6700 N/A N/A   None B26A             'Beam‑X Switch' crossed-field electron beam decimal counting tube. External magnet.
JAN‑CZ‑6844A National Electronics, Raytheon 122P224, 1970‑0002, 5031, 5092, 5092A, 6844A, 8037, 8421, 50347, B‑5031, B‑5092, B‑5092A, B‑6844A, B‑50347, BD‑302, CK6844A, CK8037, CK8421, CV5278, CV9316, GN‑4, GN‑4A, GR10M, HB‑106, JAN‑6844A, JAN‑CB‑6844A, JAN‑8037, JAN‑8421, M2726‑102500, NL‑5092, NL‑8037, NL‑8421, NL‑50347, Z520M, Z560M, Z5600M, ZM1020, ZM1020/01, ZM1022 End 15.5mm (0.610") 27.5mm (1.080") dia. X 35mm (1.380") tall 0‑9 B13B: 1 170 170 135 1.5 <1.5> 2.25 <2.75> 3.0 <4.0> High domed front. Narrow viewing angle.
KS‑19944,L1 Western Electric 1970‑0009, 5991, 8422, 4205991, B‑5961, B‑5991, B‑8422, B‑59917, B‑59917A, JAN‑8422, NL‑5961, NL‑5991, NL‑8422, ZM1100, ZM1102, ZM1180, ZM1182 End (compact)     0‑9 SK‑136: 1             Mildly radioactive Krypton-85 added during manufacture to reduce dark effect; most examples labeled "KR-85, 748".
KW‑515 Oshino   Special   22mm (0.87") X 11.5mm (0.45") X 9mm (0.36") tall 7 Segment, RH DP 16-pin DIP, some pins omitted.             Incandescent filament readout similar to 'Minitron' (3015‑F).
LC‑511 Dolam GN‑4 ? End 15.5mm (0.610") ? 25mm () dia. X 35mm () tall 0‑9 B13B             Low curved front. Nipple in base.
LC‑513     End 15.5mm (0.610")   0‑9, LH DP B13B             Low curved front. Narrow viewing angle.
LC‑513A     End 15.5mm (0.610")   0‑9 B13B             Low curved front. Narrow viewing angle.
LC‑516 Dolam IN‑1 ? End 25mm (1") ?   0‑9 U11 ?             Low curved front.
LC‑531 Unitra-Dolam   Side 13mm (0.51")   0‑9 ? Wires             Nipple top.
LC‑631 Unitra-Dolam ZM1042 ? Side 30mm (1.18")   0‑9 ? Pins             Smooth top.
LD‑784 NEC   Side 14mm (0.551") 18mm (0.709") dia. X 38mm (1.5") tall 0‑9, RH DP                
LD‑836 NEC   Side     0‑9, RH DP Wires             Nipple top. Anode mesh is horizontal wires only.
LD‑924A NEC   Side 10mm (0.39") 12mm (0.47") dia. X 30mm (1.18") tall 0‑9 12 Wires             Nipple top.
LD‑955A NEC CD89P Side 10mm (0.39") 13mm (0.51") dia. X 38mm (1.50") tall 0‑9, RH DP 12 Wires <190>     <5> (DP <1.0>) <7> (DP <1.5>) <9> (DP <2.0>) High brightness. Designed for multiplexing. Nipple top.
LD‑5002 NEC CD36A End 8mm (0.315") 16.5mm (0.650") dia. X 30mm (1.18") tall 0‑9 M‑126 170 170   1.1   1.9  
LD‑8007 NEC   Side 8mm (0.315")   0‑9, ?? DP Wires (14?): 3, 2, 4, 5, 6, 7, 8, 9, 10, 12, 1, DP=11             Nipple top. Used in Walther ETR2 desktop calculator.
LD‑8012 NEC   Side Inverted 13mm (0.512") 44.5mm (1.752") tall 7 Segment, RH DP 12 Wires             VFD. Nipple bottom.
LD‑8027 NEC                         VFD
LD‑8035E NEC   Side     8 Segment numeric, RH DP Wires (12?)             VFD. 8th segment is tail for right side of "4". Nipple top.
LD‑8039B NEC   Side 6mm (0.236")   7 Segment, RH DP Wires (11 or 14?)             VFD. Nipple top.
LD‑8051 NEC                         VFD. Nipple top.
LD‑8062 NEC   Side                     VFD. Nipple top. Used in Yaesu YC‑601 Digital Frequency Display, FR‑101D Digital Receiver, and Toshiba BC‑1217 calculator.
LD‑8088 NEC   Special     6 Digit, 7 segment, single DP between digits 4 & 5 Wires (left end)             VFD. Nipple on right end.
LL‑551 Unitra-Dolam ?                          
LL‑553 Unitra-Dolam   End 13mm (0.51")   F, H, Hz, S, W, z B13B ?             Narrow viewing angle. Low curved front.
M4 KGM   Special     0‑9 ?               Edge-lit lightguide readout.
M25 KGM   Special     0‑9, LH DP               'Multi-Indicator' lightguide readout.
M2465‑401C   CV1739, GC10/4B End N/A 29.5mm (1.16") dia. X 99.75mm (3.93") tall Glow position K8A: 1b 350   191       'Dekatron' style glow-transfer decimal counting tube.
M2465‑402   6476, 6476/A, CK6476, CV2325, GS10C, GS10C/S, Z502S End N/A   Glow position B12E             'Dekatron' style glow-transfer decimal counting/selector tube.
M2465‑403C   GS10D End N/A   Glow position B12E             'Dekatron' style glow-transfer decimal counting/selector tube.
M2726‑102500   122P224, 1970‑0002, 5031, 5092, 5092A, 6844A, 8037, 8421, 50347, B‑5031, B‑5092, B‑5092A, B‑6844A, B‑50347, BD‑302, CK6844A, CK8037, CK8421, CV5278, CV9316, GN‑4, GN‑4A, GR10M, HB‑106, JAN‑6844A, JAN‑CB‑6844A, JAN‑CZ‑6844A, JAN‑8037, JAN‑8421, NL‑5092, NL‑6844A, NL‑8037, NL‑8421, NL‑50347, Z520M, Z560M, Z5600M, ZM1020, ZM1020/01, ZM1022 End 15.5mm (0.610") 28.5mm (1.12") dia. X 31mm (1.22") tall 0‑9 B13B: 1 170 170   1.5 <1.5> 2.0 3.0 <4.0> Low curved front. Swedish military designation for GN‑4A.
M2726‑102600   GNP‑4A End 15.5mm (0.610") 28.5mm (1.122") dia. X 31mm (1.220") tall 0‑9 B13B             Low curved front. Swedish military designation for GNP‑4A.
MG‑17D Elfin, Rodan (Okaya)   Side     7 Segment, RH DP 9 Wires             Neon. Nipple top. Used in Commodore DAC‑612 calculator.
MG‑17DS Elfin/Rodan (Okaya)   Side 11mm (0.43") 9.8mm (0.39") dia. X 39mm (1.54") tall 7 Segment, RH DP 9 Wires, 35mm (1.38") long             Neon. Nipple top.
MG‑17F Rodan (Okaya)   Side / Side Inverted   9.5mm (0.375") dia. 7 Segment, RH DP X2 - see Notes column Wires             Neon. Has two (round dot) decimals at upper left and lower right of digit segments, allowing use in upright or inverted orientation. Also, lower and upper dots in adjacent tubes can be illuminated together to form a colon.
MG‑17G Elfin, Rodan (Okaya) CD86 Side 9.6mm (0.38") 10.5mm (0.41") dia. X 32mm (1.26") tall 7 Segment, ?H DP 9 Wires 180       seg. 0.35, DP 0.18   Neon.
MG‑19 Elfin, Rodan (Okaya)   Side     9 Segment numeric, RH DP 11 Wires             Neon. Two extra segments on diagonal (for angled stem of "7"?) Front anode mesh is plate with horizontal slots. Nipple top.
N4 Pressler (DGL)   End N/A   Glow position B12A             'Dekatron' style glow-transfer decimal counting tube.
NB‑3 V 176     Side 8mm (0.315")   9 Segment Wires             VFD. Extra segments = diagonal "7"
NE‑50347 National Electronics   End     0‑9 B13B: 1             High domed front. Narrow viewing angle.
NEO‑5000 Y.S.   Special 50mm (2")   7 Segment, RH DP 10 pin SIP             Neon rectangular flat panel.
NEO‑8000M Y.S.   Special 85mm (3.35") 120mm (4.72") tall X 80mm (3.15") wide X 7mm (0.28") thick 7 Segment, RH DP 10 pin SIP             Neon rectangular flat panel. Segments are shown in outline form. Nipple at center of top edge.
NF00649 Amperex                          
NF00650 Amperex                          
N.I.7 Cintel   End   33mm (1.3") dia. 0‑9               'Cathvisor'. Low curved front.
NL‑226 ? National Electronics   End (compact) 15.5mm (0.610") ?   0‑9, LH DP SK‑136: 1a             Possible erroneous part number, mis-read of NL‑826.
NL‑710 National Electronics                          
NL‑803 National Electronics   Side 15.5mm (0.610") 22mm (0.875") dia. X 52.5mm (2.0625") 0‑9 RTS‑11: 1e 170 170 150 1.5 <1.5> 2.25 <2.5> 3.0 <3.5> Nipple top.
NL‑805 National Electronics                          
NL‑806 National Electronics   End (compact) 15.5mm (0.610")   +, − SK‑136: 1b              
NL‑807 National Electronics   Side 20.5mm (0.808") 22mm (0.875") dia. X 55.6mm (2.1875") tall 0‑9 RTS‑11: 1e 170 170 150 2.0 3.12 4.5 <5.0> Complementary to NL-821. Nipple top. Used in Beckman Digital pH Meter model no. 76, cat. no. 76008.
NL‑809 National Electronics B‑59956 End (compact) 15.5mm (0.610") 20.5mm (0.800") X 26mm (1.020") X 29.5mm (1.160") tall 0‑9, LH DP SK‑136: 1a 170 170   2.0 2.5 (DP 0.3) 3.5 (DP 0.5)  
NL‑810A National Electronics   End (compact)     0‑9 SK‑136: 1              
NL‑811 National Electronics   Side     +, − RTS‑11: 1f              
NL‑812 National Electronics   Side 15.5mm (0.610") 20.5mm (0.808") dia. X 51mm (2.01") tall 0‑9, LH DP RTS‑11: 1a             Nipple top.
NL‑814 National Electronics           RTS‑11 ?              
NL‑816 National Electronics   End (compact, sideways)     (LH DP), n, µ, m, K, M, G [left]
Hz, S, V [right]		 SK‑136: 3             Symbols for test equipment (2 stacks side-by-side). Unique view style: for upright viewing of characters, position (determined by pin orientation) is as a normal compact end-viewed tube rotated 90° counterclockwise. Part number verified by third party; the middle digit on my example appears to be a "1" but most of it is missing.
NL‑820 National Electronics                          
NL‑821 National Electronics   Side 20.5mm (0.808") 22mm (0.875") dia. X 55.6mm (2.1875") tall 0‑9, LH DP RTS‑11: 1a 170 170 150 2.0 3.12 (DP 0.3) 4.5 <5.0> Complementary to NL-807. Nipple top. Used in Beckman Digital pH Meter model no. 76, cat. no. 76008.
NL‑826 National Electronics   End (compact) 15.5mm (0.610")   0‑9, LH DP SK‑136: 1a              
NL‑828 National Electronics                          
NL‑831 National Electronics   End (compact)     µ, K, M [top]
C, S [bottom]		 SK‑136             Symbols for test equipment (over/under).
NL‑836 National Electronics                          
NL‑840 National Electronics 340‑0004, 8754, 4200840, CK8754 Side 15.5mm (0.610") 19.0mm (0.750") dia. X 52.0mm (2.050") tall 0‑9 RTS‑11: 1 170 170 147 1.5 2.5 3.0 <3.5> Nipple top. Life expectancy 200k hrs.
NL‑841 National Electronics 4200841, CK1916 Side 15.5mm (0.610") 19.0mm (0.750") dia. X 52.0mm (2.050") tall 0‑9, LH DP RTS‑11: 1a 170 170 147 1.5 (DP 0.2) 2.5 3.0 <3.5> (DP 0.5) Nipple top. Life expectancy 200k hrs.
NL‑842 National Electronics CK1917 Side 15.5mm (0.610") 19.0mm (0.750") dia. X 52.0mm (2.050") tall 0‑9, RH DP RTS‑11: 1b 170 170 147 1.5 (DP 0.2) 2.5 3.0 <3.5> (DP 0.5) Nipple top. Life expectancy 200k hrs.
NL‑842PT National Electronics   Side 15.5mm (0.610") 19mm (0.750") dia. X 52.0mm (2.050") tall   RTS‑11: 1b ? 170 170 147 1.5 2.5 3.0 Nipple top.
NL‑843 National Electronics 340‑0005, CK1907 Side 15.5mm (0.610") nominal 19.0mm (0.750") dia. X 52.0mm (2.050") tall +, − RTS‑11: 1d 170 170 147 1.5 2.5 3.0 <3.5> Nipple top. Life expectancy 200k hrs.
NL‑844 National Electronics   Side     0‑9 RTS‑11: 1             High‑contrast version of NL‑840. Nipple top.
NL‑845 National Electronics   Side     0‑9, LH DP RTS‑11: 1a             High‑contrast version of NL‑841. Nipple top.
NL‑846 National Electronics   Side     0‑9, RH DP RTS‑11: 1b             High‑contrast version of NL‑842. Nipple top.
NL‑847 National Electronics   Side     +, − RTS‑11: 1d             High‑contrast version of NL‑843. Nipple top.
NL‑848 National Electronics CK1918 Side 15.5mm (0.610") 19.0mm (0.750") dia. X 52.0mm (2.050") tall 0‑9, LH & RH DP's RTS‑11: 1c 170 170 147 1.5 (DP 0.2) 2.5 3.0 <3.5> (DP 0.5) Nipple top. Life expectancy 200k hrs.
NL‑856 National Electronics   Side 15.5mm (0.610") 19.0mm (0.750") dia. X 52.0mm (2.050") tall 0‑9 RTS‑11: 1 170 170 147 1.5 2.5 3.0 Filter coating. Nipple top.
NL‑863 National Electronics   Side 51mm (2.000") nominal 52.5mm (2.065") dia. X 100mm (3.925") tall +, − SK‑137 200 200 135 6 <6> 8 <8> 10 <10> Complementary to NL‑7037. Smooth top.
NL‑864 National Electronics   Side 15.5mm (0.610") 19mm (0.750") dia. X 52.0mm (2.050") tall n, µ, K, M [top]
Hz, S [bottom]		 RTS‑11 170 170 150 1.5 2.5 3.0 Symbols for frequency counter. Nipple top.
NL‑867 National Electronics   Side   'Miniature' M, K, m, µ, n, p [top]
V, Hz, S [bottom] ?		 RTS‑11             Symbols for test equipment (over/under). Nipple top.
NL‑874 National Electronics   Side Inverted     0‑9 RTS‑11: 1             Nipple bottom. Used in Dynametrics 440 multimeter.
NL‑875 National Electronics   Side Inverted     0‑9, LH DP RTS‑11: 1a             Nipple bottom.
NL‑876 National Electronics   Side Inverted     0‑9, RH DP RTS‑11: 1b 170 170   1.5(DP 0.2) 2.5 (DP 0.35) 3.5 (DP 0.5) Nipple bottom.
NL‑883 National Electronics   End 7mm (0.275") 27.5mm (1.080") dia. X 35mm (1.375") tall C, C [left]
K, M, P, S [center]
S, S[right]		 B13B: 1f             Symbols for unknown equipment (3 stacks, side by side). Low curved front. Narrow viewing angle. Left and right stacks each contain two identical character cathodes, connected independently to separate pins.
NL‑884 National Electronics   Side Inverted 15.5mm (0.610") 19mm (0.750") dia. X 47.5mm (1.870") tall +, − RTS‑11: 1d             Nipple bottom. Would someone please tell me what the difference is between upright and inverted "+" and "−" characters? ;-)
NL‑900 National Electronics   Side     0‑9 RTS‑11: 1             Flat top.
NL‑901 National Electronics   Side     0‑9, LH DP RTS‑11: 1a             Flat top.
NL‑902 National Electronics   Side     0‑9, RH DP RTS‑11: 1b             Flat top.
NL‑903 National Electronics   Side (upright or inverted)     +, − RTS‑11: 1d             Flat top (or bottom).
NL‑904 National Electronics   Side Inverted     0‑9 RTS‑11: 1             Flat bottom.
NL‑905 National Electronics   Side Inverted     0‑9, LH DP RTS‑11: 1a             Flat bottom.
NL‑906 National Electronics   Side Inverted     0‑9, RH DP RTS‑11: 1b             Flat bottom.
NL‑907 National Electronics   Side Inverted     0‑9, LH & RH DP's RTS‑11: 1c             Flat bottom.
NL‑908 National Electronics   Side     0‑9, LH & RH DP's RTS‑11: 1c             Flat top.
NL‑918 National Electronics 1970‑0025, B‑5560 Side Inverted 13.2mm (0.520") 15.2mm (0.600") dia. X 35.3mm (1.390") tall 0‑9 SK‑116: 2 170 170 138   1.5 - 2.0 2.5 Domed smooth bottom.
NL‑919 National Electronics   Side     0‑9, LH & RH DP's Pins             Nipple top.
NL‑939 National Electronics   Side       RTS‑11 (14 pins)             Nipple top.
NL‑940CS National Electronics   Side     0‑9, LH & RH DP's SK‑207             Nipple top. Thick standoff/spreader.
NL‑943 National Electronics   Side     0‑9 RTS‑11 ?             Nipple top.
NL‑950 National Electronics B‑5750, NL‑5750 Side 13mm (0.512") ?   0‑9 SK‑207             Nipple top.
NL‑950C National Electronics B‑5750, NL‑5750 Side 13mm (0.512") ?   0‑9 SK‑207             Nipple top.
NL‑950S National Electronics 411‑264, 411‑0264, B‑5859S, NL‑1220 Side 13mm (0.512")   0‑9, LH & RH DP's SK‑207: 1             Nipple top. Suffix "S" indicates pre-cut wire leads. Used in Heathkit IB‑101 Frequency Counter.
NL‑951 National Electronics   Side 13mm (0.512") ?   +, − SK‑207             Complementary to NL-950. Nipple top.
NL‑951S National Electronics   Side 13mm (0.512") ?   +, − SK‑207             Complementary to NL-950S. Suffix "S" indicates pre-cut wire leads. Nipple top.
NL‑973 National Electronics   Side     n, µ, m, K, M [top]
V, A, Ω, S, W [bottom]		 RTS‑11: 1g             Symbols for test equipment (over/under). Nipple top.
NL‑987 National Electronics 1970‑0032, B‑5448, B‑5448A Side 15.5mm (0.61") nominal 19mm (0.75") dia. X 52mm (2.05") tall +, −, (OverLoad) SK‑182: 1c 170 170 145 1.5 2.5 3.0 <3.5> "OverLoad" symbol is capital "O" superimposed with subscript capital "L". Nipple top.
NL‑988 National Electronics 1970‑0037, B‑5450 Side 8mm (0.315") 19mm (0.75") dia. X 52mm (2.05") tall M [top]
V [bottom]		 SK‑182 170 170 145       Symbols for test equipment (over/under). Nipple top.
NL‑989 National Electronics 1970‑0038, B‑5449 ? Side 8mm (0.315") 19mm (0.75") dia. X 52mm (2.05") tall A, K, M [top]
C, V, Ω [bottom]		 SK‑182 170 170 145       Symbols for test equipment (over/under). Nipple top.
NL‑1032 National Electronics ZM1030, ZM1032 Side 15.5mm (0.610")   0‑9 B9A: Anode1(even)=2, Anode2(odd)=9, Screen=6, K(0,1)=8, K(2,3)=7, K(4,5)=5, K(6,7)=4, K(8,9)=3             Bi‑quinary. Nipple top.
NL‑1032N National Electronics ZM1030, ZM1032 Side 15.5mm (0.610")   0‑9 B9A: Anode1(even)=2, Anode2(odd)=9, Screen=6, K(0,1)=8, K(2,3)=7, K(4,5)=5, K(6,7)=4, K(8,9)=3             Bi‑quinary. Nipple top.
NL‑1219 National Electronics                          
NL‑1220 National Electronics 411‑264, 411‑0264, B‑5859S, NL‑950S Side     0‑9, LH & RH DP's SK‑207: 1             Nipple top.
NL‑1222 National Electronics                          
NL‑1224 National Electronics   Side     9 Segment numeric, RH DP SK‑207             Nipple top. VFD.
NL‑1242 National Electronics                          
NL‑1265 National Electronics 1970‑0046 Side 15.5mm (0.610") 19mm (0.750") dia. X 44.5mm (1.750") tall 0‑9, LH DP & RH comma SK‑182: 1d 170 170 142 2.0 2.3 (DP & comma 0.5) 3.5 (DP & comma 0.7) Smooth top. Rated life: 200k hrs.
NL‑4021 National Electronics 4021, 4032, 4041, 5810, 7009, 7977, 8502, B‑4021, B‑4021AL, B‑4021G, B‑4021L, B‑4032, B‑4041, B‑4081, B‑5810, B‑7009, BD‑200S, BD‑244, JAN‑7009, JAN‑7977, JAN‑8502, NL‑4021A, NL‑4032, NL‑4041, NL‑7009, NL‑7977, NL‑8502, ZM1120, ZM1122 End 8mm (0.310") 16.5mm (0.650") dia. X 23.5mm (0.925") tall 0‑9 SK‑116: 1 120 120 102 0.7 <0.7> 1.0 1.4 <2.0> Low voltage design. High domed front.
NL‑4021A National Electronics 4021, 4032, 4041, 5810, 7009, 7977, 8502, B‑4021, B‑4021AL, B‑4021G, B‑4021L, B‑4032, B‑4041, B‑4081, B‑5810, B‑7009, BD‑200S, BD‑244, JAN‑7009, JAN‑7977, JAN‑8502, NL‑4021, NL‑4032, NL‑4041, NL‑7009, NL‑7977, NL‑8502, ZM1120, ZM1122 End 8mm (0.310") 16.5mm (0.650") dia. X 23.5mm (0.925") tall 0‑9 SK‑116: 1 120 120 102 0.7 <0.7> 1.0 1.4 <2.0> Low voltage design. High domed front.
NL‑4021AL National Electronics 4021, 4032, 4041, 5810, 7009, 7977, 8502, B‑4021, B‑4021AL, B‑4021G, B‑4021L, B‑4032, B‑4041, B‑4081, B‑5810, B‑7009, BD‑200S, BD‑244, JAN‑7009, JAN‑7977, JAN‑8502, NL‑4021, NL‑4021A, NL‑4032, NL‑4041, NL‑7009, NL‑7977, NL‑8502, ZM1120, ZM1122 End 7.75mm (0.305") 16.5mm (0.650") dia. X 23.5mm (0.925") tall 0‑9 SK‑116: 1 120 120 102 0.7 <0.7> 1.0 1.4 <2.0> Narrow viewing angle. High domed front.
NL‑4031 National Electronics 4031, B‑4031 End 8mm (0.310") 17mm (0.680") dia. X 24mm (0.940") tall +, − SK‑116: 1a 170 170 154 0.7 <0.7> 1.0 1.4 <2.0> High domed front. Silicone rubber outer sleeve (thickness included in tube diameter). Symbol tube complementary to 4032, also matches 5810 & 7977 types in size & electrical characteristics.
NL‑4032 National Electronics 4021, 4032, 4041, 5810, 7009, 7977, 8502, B‑4021, B‑4021AL, B‑4021G, B‑4021L, B‑4032, B‑4041, B‑4081, B‑5810, B‑7009, BD‑200S, BD‑244, JAN‑7009, JAN‑7977, JAN‑8502, NL‑4021, NL‑4021A, NL‑4041, NL‑7009, NL‑7977, NL‑8502, ZM1120, ZM1122 End 8mm (0.310") 17mm (0.680") dia. X 24mm (0.940") tall 0‑9 SK‑116: 1 170 170 154 0.7 <0.7> 1.0 1.4 <2.0> High domed front. Silicone rubber outer sleeve (thickness included in tube diameter). Long life (>200K hrs.)
NL‑4038 National Electronics 4038, B‑4038 End 7.75mm (0.305") 17mm (0.680") dia. X 27mm (1.063") tall A, E, G, H, J, K, L, M SK‑116: 1b 170 170 145 0.7 <0.7> 1.0 1.4 <2.0> High domed front. Narrow viewing angle. Silicone rubber outer sleeve (thickness included in tube diameter).
NL‑4041 National Electronics 4021, 4032, 4041, 5810, 7009, 7977, 8502, B‑4021, B‑4021AL, B‑4021G, B‑4021L, B‑4032, B‑4041, B‑4081, B‑5810, B‑7009, BD‑200S, BD‑244, JAN‑7009, JAN‑7977, JAN‑8502, NL‑4021, NL‑4021A, NL‑4032, NL‑7009, NL‑7977, NL‑8502, ZM1120, ZM1122 End 8mm (0.310") 16.5mm (0.650") dia. X 23.5mm (0.925") tall 0‑9 SK‑116: 1a 170 170 154 0.7 <0.7> 1.0 1.2 <2.0>  
NL‑4998 National Electronics B‑4998 End (compact) 7.75mm (0.305") 12.0mm (0.470") X 16.0mm (0.625") X 25.4mm (1.000") tall 0‑9 SK‑176: 1 170 170 150 1.0 1.35 2.0 <2.5> Complementary types include NL‑49982, NL‑49989 and NL‑49990.
NL‑5016 National Electronics B‑5016, B‑5032, B‑50911, BD‑214, NL‑5032 NL‑50911 End 15.5mm (0.610") 27.5mm (1.080") dia. X 35mm (1.375") tall +, − B13B: 1a 170 170 135 1.5 <1.5> 2.25 <2.75> 3.0 <4.0> High domed front. Narrow viewing angle.
NL‑5025 National Electronics   Side     0‑9 B9A             Bi‑quinary. Nipple top. Mercury-free.
NL‑5030 National Electronics B‑5030, ZM1032 ? Side 15.5mm (0.610") 22.2mm (0.874") dia. X 55.6mm (2.189") tall 0‑9 B9A             Bi‑quinary. Nipple top. All other known Burroughs and National tubes with identical numeric part numbers are functionally equivalent tubes, but one source reports B‑5030 as having inverted display.
NL‑5031 National Electronics   End                     Low curved front.
NL‑5032 National Electronics B‑5016, B‑5032, B‑50911, BD‑214, NL‑5016, NL‑50911 End     +, − B13B: 1a             High domed front.
NL‑5094 National Electronics 154‑0326‑00, B‑5094 End 7mm (0.275") 25mm (1") dia. M, µ, N [left]
A, S, V [right]		 B13B: 1d             Symbols for test equipment (side by side).
NL‑5385 National Electronics                          
NL‑5440 National Electronics 1970‑0017, B‑5440, B‑5440A, NL‑5440A Side 15.5mm (0.61") 19mm (0.75") dia. X 52mm (2.05") tall 0‑9 SK‑182: 1 170 170 145 1.5 2.5 3.0 <3.5> Nipple top.
NL‑5440A National Electronics 1970‑0017, B‑5440, B‑5440A, NL‑5440 Side 15.5mm (0.61") 19mm (0.75") dia. X 44.5mm (1.75") tall 0‑9 SK‑182: 1 170 170 145 1.5 2.5 3.0 <3.5> Smooth top.
NL‑5441 National Electronics 1970‑0018, 1970‑0035, B‑5441, B‑5441A, B‑5441X ?, NL‑5441A, NL‑54417 ? Side 15.5mm (0.61") 19mm (0.75") dia. X 52mm (2.05") tall 0‑9, LH & RH DP's SK‑182: 1a 170 170 142 1.5 2.5 (DP 0.5) 3.0 <3.5> (DP 0.7) Nipple top.
NL‑5441A National Electronics 1970‑0035, B‑5441A, NL‑54417 ? Side 15.5mm (0.61") 19mm (0.75") dia. X 44.5mm (1.75") tall 0‑9, LH & RH DP's SK‑182: 1a 170 170 142 2.0 2.3 (DP 0.5) 3.5 (DP 0.7) Smooth top.
NL‑5442 National Electronics 1970‑0047, B‑5442, B‑5442A, NL‑5442A Side 15.5mm (0.61") nominal 19mm (0.75") dia. X 52mm (2.05") tall +, − SK‑182: 1b 170 170 145 1.5 2.3 3.0 <3.5> Nipple top. Sign tube complementary to NL‑5440 and NL‑5441.
NL‑5442A National Electronics 1970‑0047, B‑5442, B‑5442A, NL‑5442 Side 15.5mm (0.61") nominal 19mm (0.75") dia. X 44.5mm (1.75") tall +, − SK‑182: 1b 170 170 145 1.5 2.3 3.0 <3.5> Smooth top.
NL‑5445 National Electronics 1970‑0028, B‑5445 Side Inverted 15.5mm (0.61") 19mm (0.75") dia. X 52mm (2.05") tall 0‑9 SK‑182: 1 170 170 145 1.5 2.5 3.0 <3.5> Nipple bottom.
NL‑5592 National Electronics   End (compact)     +, − SK‑136: 1b              
NL‑5750 National Electronics B‑5750, NL‑950 Side 13mm (0.512") 13.5mm (0.530") dia. 0‑9, LH & RH DP's SK‑207: 1a             Nipple top.
NL‑5750C National Electronics NL‑950 Side 13mm (0.512") 13.5mm (0.530") dia. 0‑9, LH & RH DP's SK‑207: 1a             Nipple top.
NL‑5750CS National Electronics NL‑950 Side 13mm (0.512") 13.5mm (0.530") dia. 0‑9, LH & RH DP's SK‑207: 1a             Nipple top.
NL‑5750S National Electronics NL‑950 Side 13mm (0.512") 13.5mm (0.530") dia. 0‑9, LH & RH DP's SK‑207: 1a             Nipple top.
NL‑5853 National Electronics B‑5853, B‑5853S, B‑5853‑S1, B‑5853ST, NL‑5853S, NL‑5853ST, ZM1336, ZM1336K Side 13mm (0.512") 13mm (0.512") dia. X 34mm (1.34") tall 0‑9, LH & RH DP's SK‑207: 1a             Nipple top.
NL‑5853S National Electronics B‑5853, B‑5853S, B‑5853‑S1, B‑5853ST, NL‑5853, NL‑5853ST, ZM1336, ZM1336K Side 13mm (0.512") 13mm (0.512") dia. X 34mm (1.34") tall 0‑9, LH & RH DP's SK‑207: 1a             Nipple top.
NL‑5853ST National Electronics B‑5853, B‑5853S, B‑5853‑S1, B‑5853ST, NL‑5853, NL‑5853S, ZM1336, ZM1336K Side 13mm (0.512") 13mm (0.512") dia. X 34mm (1.34") tall 0‑9, LH & RH DP's SK‑207: 1a             Nipple top.
NL‑5859 National Electronics   Side     0‑9, LH & RH DP's SK‑207: 1             Nipple top.
NL‑5859CS National Electronics   Side     0‑9, LH & RH DP's SK‑207: 1             Nipple top.
NL‑5861ST National Electronics   Side       SK‑207             Nipple top.
NL‑5866STX     Side     +, −, RH DP SK‑207: 1d             Nipple top.
NL‑5870 National Electronics   Side 13mm (0.512") 13.5mm (0.530") dia. 0‑9, LH & RH DP's SK‑207: 1a 170 170 140 2.3 3.5 5 Nipple top.
NL‑5870L National Electronics   Side 13mm (0.512") 13.5mm (0.530") dia. 0‑9, LH & RH DP's SK‑207: 1a 170 170 140 2.3 3.5 5 Nipple top.
NL‑5870S National Electronics 1970‑0042, 5870S, 5870ST, B‑5870S, B‑5870ST, GR116D, NL‑5870ST, ZM1332, ZM1332K Side 13mm (0.512") 13.5mm (0.530") dia. 0‑9, LH & RH DP's SK‑207: 1a 170 170 140 2.3 3.5 5 Nipple top.
NL‑5870ST National Electronics 1970‑0042, 5870S, 5870ST, B‑5870S, B‑5870ST, GR116D, NL‑5870S, ZM1332, ZM1332K Side 13mm (0.512") 13.5mm (0.530") dia. 0‑9, LH & RH DP's SK‑207: 1a 170 170 140 2.3 3.5 5 Nipple top.
NL‑5870T National Electronics   Side 13mm (0.512") 13.5mm (0.530") dia. 0‑9, LH & RH DP's SK‑207: 1a 170 170 140 2.3 3.5 5 Nipple top.
NL‑5961 National Electronics 1970‑0009, 1970‑0016, 5991, 8422, 4205991, B‑5961, B‑5991, B‑8422, B‑59917, B‑59917A, JAN‑8422, KS‑19944,L1, NL‑5991, NL‑8422, ZM1100, ZM1102, ZM1180, ZM1182 End (compact) 15.5mm (0.610") 20.5mm (0.800") X 26mm (1.020") X 34.5mm (1.358") tall 0‑9 SK‑136: 1 170 170 130 2.5 3.3 4.5 Mercury-free design intended for use in chemically restricted environments.
NL‑5965 National Electronics   End (compact) 15.5mm (0.610")   0‑9, LH DP SK‑136: 1a             Complementary to NL‑5961?
NL‑5971 National Electronics B‑5971 End (compact) 15.5mm (0.610")   13 Segment Alphanumeric SK‑136: 2              
NL‑5991 National Electronics 1970‑0009, 5991, 8422, 4205991, B‑5961, B‑5991, B‑8422, B‑59917, B‑59917A, JAN‑8422, KS‑19944,L1, NL‑5961, NL‑8422, ZM1100, ZM1102, ZM1180, ZM1182 End (compact) 15.5mm (0.610")   0‑9 SK‑136: 1              
NL‑5992 National Electronics 1970‑0012, B‑5992 End (compact) 15.5mm (0.610")   +, − SK‑136: 1b              
NL‑5997 National Electronics   End (compact)   20mm (0.790") X 26mm (1.024") X 29mm (1.142") tall M, K, µ [top]
S, C [bottom]		 SK‑136: 1d             Symbols for test equipment (over/under).
NL‑6012 National Electronics                          
NL‑6844A National Electronics 122P224, 1970‑0002, 5031, 5092, 5092A, 6844A, 8037, 8421, 50347, B‑5031, B‑5092, B‑5092A, B‑6844A, B‑50347, BD‑302, CK6844A, CK8037, CK8421, CV5278, CV9316, GN‑4, GN‑4A, GR10M, HB‑106, JAN‑6844A, JAN‑CB‑6844A, JAN‑CZ‑6844A, JAN‑8037, JAN‑8421, M2726‑102500, NL‑5092, NL‑8037, NL‑8421, NL‑50347, Z520M, Z560M, Z5600M, ZM1020, ZM1020/01, ZM1022 End 15.5mm (0.610") 27.5mm (1.080") dia. X 35mm (1.375") tall 0‑9 B13B: 1 170 170 135 1.5 <1.5> 2.25 <2.75> 3.0 <4.0> High domed front. Narrow viewing angle.
NL‑7009 National Electronics 4021, 4032, 4041, 5810, 7009, 7977, 8502, B‑4021, B‑4021AL, B‑4021G, B‑4021L, B‑4032, B‑4041, B‑4081, B‑5810, B‑7009, BD‑200S, BD‑244, JAN‑7009, JAN‑7977, JAN‑8502, NL‑4021, NL‑4021A, NL‑4032, NL‑4041, NL‑7977, NL‑8502, ZM1120, ZM1122 End 8mm (0.310") 16.5mm (0.650") dia. X 23.5mm (0.925") tall 0‑9 SK‑116: 1 170 170 102 0.7 <0.7> 1.0 1.2 <2.0> High domed front.
NL‑7037 National Electronics 7037, B‑7037, Z568M, Z5680M Side 51mm (2.000") 52.5mm (2.065") dia. X 100mm (3.925") tall 0‑9 SK‑137: 2, 4, 9, 7, 17, 8, 14, 3, 16, 12, 13 200 200 135 6 <6> 8 <8> 10 <10> Smooth top.
NL‑7038 National Electronics                          
NL‑7094 National Electronics B‑7091, B‑7094 End 51mm (2.000") 79mm (3.100") dia. X 67.5mm (2.650") tall 0‑9 SK‑137: 2, 3, 17, 16, 14, 13, 12, 9, 8, 7, 4 170 170 150 4.0 <4.0> 5.5 <5.75> 7.0 <7.5> Low curved front. Nipple in base.
NL‑7153 National Electronics 7153, 8423, B‑6033, B‑6091, B‑7153, BD‑206, JAN‑8423, NL‑8423 End 20.5mm (0.808") 34.5mm (1.350") dia. X 38.5mm (1.512") tall 0‑9 B13B: 1 250 250 143 2.0 <2.0> 2.5 <3.5> 3.0 <5.0>  
NL‑7242 National Electronics                          
NL‑7971 National Electronics 283CQAD7971, 7971, B‑7971 Side 63.5mm (2.500") 31mm (2.0") dia. X 127mm (5.0") tall 15 Segment Alphanumeric, incl. underscore SK‑137             Nipple in base.
NL‑7977 National Electronics 4021, 4032, 4041, 5810, 7009, 7977, 8502, B‑4021, B‑4021AL, B‑4021G, B‑4021L, B‑4032, B‑4041, B‑4081, B‑5810, B‑7009, BD‑200S, BD‑244, JAN‑7009, JAN‑7977, JAN‑8502, NL‑4021, NL‑4021A, NL‑4032, NL‑4041, NL‑7009, NL‑8502, ZM1120, ZM1122 End 8mm (0.310") 17mm (0.680") dia. X 24mm (0.940") tall 0‑9 SK‑116: 1 170 170 154 0.7 <0.7> 1.0 1.4 <2.0> High domed front. Silicone rubber outer sleeve (thickness included in tube diameter). Long life (>200K hrs.)
NL‑8025 National Electronics                          
NL‑8037 National Electronics 122P224, 1970‑0002, 5031, 5037, 5092, 5092A, 6844A, 8037, 8421, 50347, B‑5031, B‑5037, B‑5092, B‑5092A, B‑6844A, B‑50347, BD‑302, CK6844A, CK8037, CK8421, CV5278, CV9316, GN‑4, GN‑4A, GR10M, HB‑106, JAN‑6844A, JAN‑CB‑6844A, JAN‑CZ‑6844A, JAN‑8037, JAN‑8421, M2726‑102500, NL‑5092, NL‑6844A, NL‑8421, NL‑50347, Z520M, Z560M, Z5600M, ZM1020, ZM1020/01, ZM1022 End 15.5mm (0.610") 26mm (1.024") dia. X 28.5mm (1.122") tall 0‑9 B13B: 1 170 170 147 1.5 <1.5> 2.25 <2.5> 3.0 <3.5> Low curved front.
NL‑8063 National Electronics   Side     7 Segment, RH DP SK‑207             Nipple top. VFD.
NL‑8091 National Electronics B‑8091 End 35mm (1.375") 52.5mm (2.060") dia. X 58mm (2.280") tall 0‑9 SK‑137: 2, 3, 17, 16, 14, 13, 12, 9, 8, 7, 4 170 170 145 3.0 <3.0> 4.75 <5.0> 6.0 <6.5> Low curved front. Used in Datum 9520 time display.
NL‑8421 National Electronics 122P224, 1970‑0002, 5031, 5092, 5092A, 6844A, 8037, 8421, 50347, B‑5031, B‑5092, B‑5092A, B‑6844A, B‑50347, BD‑302, CK6844A, CK8037, CK8421, CV5278, CV9316, GN‑4, GN‑4A, GR10M, HB‑106, JAN‑6844A, JAN‑CB‑6844A, JAN‑CZ‑6844A, JAN‑8037, JAN‑8421, M2726‑102500, NL‑5092, NL‑6844A, NL‑8037, NL‑50347, Z520M, Z560M, Z5600M, ZM1020, ZM1020/01, ZM1022 End 15.5mm (0.610") 27.5mm (1.080") dia. X 35mm (1.375") tall 0‑9 B13B: 1 170 170 147 1.5 <1.5> 2.25 <2.5> 3.0 <3.5> Low curved front.
NL‑8422 National Electronics 1970‑0009, 5991, 8422, 4205991, B‑5961, B‑5991, B‑8422, B‑59917, B‑59917A, JAN‑8422, KS‑19944,L1, NL‑5961, NL‑5991, ZM1100, ZM1102, ZM1180, ZM1182 End (compact) 15.5mm (0.610")   0‑9 SK‑136: 1              
NL‑8423 National Electronics 7153, 8423, B‑6033, B‑6091, B‑7153, BD‑206, JAN‑8423, NL‑7153 End 20.5mm (0.808") 34.5mm (1.350") dia. X 38.5mm (1.512") tall 0‑9 B13B: 1 170 170 147 1.5 <1.5> 3.0 <3.25> 4.0 <4.5> Low curved front.
NL‑8426 National Electronics   Side ?     0‑9 ? 14 Wires ?              
NL‑8502 National Electronics 4021, 4032, 4041, 5810, 7009, 7977, 8502, B‑4021, B‑4021AL, B‑4021G, B‑4021L, B‑4032, B‑4041, B‑4081, B‑5810, B‑7009, BD‑200S, BD‑244, JAN‑7009, JAN‑7977, JAN‑8502, NL‑4021, NL‑4021A, NL‑4032, NL‑4041, NL‑7009, NL‑7977, ZM1120, ZM1122 End 8mm (0.310") 16.5mm (0.650") dia. X 23.5mm (0.925") tall 0‑9 SK‑116: 1 120 120 102 0.7 <0.7> 1.0 1.4 <2.0> Low voltage design. High domed front.
NL‑8971 Burroughs B‑8971 Side 36.5mm (1.440") 29mm (1.150") dia. X 85.5mm (3.365") tall 15 Segment Alphanumeric, incl. underscore B17A             Nipple top.
NL‑9012 National Electronics B‑9012, HB‑105 End 2.75mm (0.10") 27.5mm (1.080") dia. X 26.5mm (1.040") tall 0‑9 13 Pins, 10 in circle w/ 3 in center: 11&13, 3, 2, 1, 10, 9, 8, 7, 6, 5, 4, Keep Alive=12 150 150   0.25 0.4 0.6 'Pixie' style position indicator tube.
NL‑49982 National Electronics B‑49982 End (compact) 7mm (0.276") 11.2mm (0.441") X 15mm (0.591") X 26mm (1.024") tall +, − SK‑176             Complementary to NL‑4998.
NL‑49989 National Electronics B‑49989 End (compact) 7.75mm (0.305") 12.0mm (0.470") X 16.0mm (0.625") X 25.4mm (1.000") tall A, C, G, L, N, R, S, T, V, Δ SK‑176: 1a 170 170 150 1.0 1.35 2.0 <2.5> Complementary to NL‑4998.
NL‑49990 National Electronics B‑49990 End (compact) 7.75mm (0.305") 12.0mm (0.470") X 16.0mm (0.625") X 25.4mm (1.000") tall B, C, D, E, H, T, U, W, Δ SK‑176: 1b 170 170 150 1.0 1.35 2.0 <2.5> Complementary to NL‑4998.
NL‑50325 National Electronics   End 15.5mm (0.610") 26mm (1.024") dia. X 28.5mm (1.122") tall AC, KΩ, +, − B13B 170 170 147 1.5 <1.5> 2.25 <2.5> 3.0 <3.5> Ultra long life? High domed front?
NL‑50347 National Electronics 122P224, 1970‑0002, 5031, 5092, 5092A, 6844A, 8037, 8421, 50347, B‑5031, B‑5092, B‑5092‑A, B‑6844A, B‑50347, BD‑302, CK6844A, CK8037, CK8421, CV5278, CV9316, GN‑4, GN‑4A, GR10M, HB‑106, JAN‑6844A, JAN‑CB‑6844A, JAN‑CZ‑6844A, JAN‑8037, JAN‑8421, M2726‑102500, NL‑5092, NL‑6844A, NL‑8037, NL‑8421, Z520M, Z560M, Z5600M, ZM1020, ZM1020/01, ZM1022 End 15.5mm (0.610") 27.5mm (1.080") dia. X 35mm (1.380") tall 0‑9 B13B: 1 170 170 135 1.5 <1.5> 2.25 <2.75> 3.0 <4.0> High domed front. Narrow viewing angle.
NL‑50911 National Electronics B‑5016, B‑5032, B‑50911, BD‑214, NL‑5016, NL‑5032 End     +, − B13B: 1a             Low curved front.
NL‑54362 National Electronics   Side     G, M, K, m, µ, n [top]
Hz, S [bottom]		 16 Pins             Symbols for test equipment (over/under). Nipple top.
NL‑54417 National Electronics 1970‑0018 ?, 1970‑0035 ?, B‑5441 ?, B‑5441A ?, B‑5441X ?, NL‑5441 ?, NL‑5441A ? Side 15.5mm (0.61") 19mm (0.75") dia. X 44.5mm (1.75") tall 0‑9, LH & RH DP's SK‑182: 1a 170 170 142 2.0 2.3 (DP 0.5) 3.5 (DP 0.7) Smooth top. Part number uncertain.
NUP 102 National Union   End 15.5mm (0.610") 32mm (1.260") dia. X 35mm (1.378") tall 0‑9 Pins, circle             Low curved front.
NUP 118 National Union   End 15.5mm (0.61") 28mm (1.10") dia. X 35mm (1.38") tall 0‑9 B13B: 1             Narrow viewing angle. Low curved front.
NUP 124‑6 National Union   End     7 Segment ?                
OG‑3 (ОГ‑3)   GC10D ? End N/A 33mm (1.30") dia. X 76mm (2.99") tall Glow position K8A: Anode=6, K0=8, K1-9=2, Guide1=5, Guide2=3, Guide3=1, Guide3(K0)=7 450 450 190     0.7 Russia/USSR. 'Dekatron' style glow-transfer decimal counting tube. Argon fill.
OG‑4 (ОГ‑4)     End N/A 33mm (1.30") dia. X 76mm (2.99") tall Glow position K8A: 1f 450 420 175 ?     0.4 Russia/USSR. 'Dekatron' style glow-transfer decimal counting tube.
P784     Special   28mm (1.10") tall X 70mm (2.76") wide X ??mm (??") thick 5‑Digit, 7 segment w/ 2 DP's 36 pin DIP w/ several omitted pins             VFD. For broadcast radio receiver frequency readout?
PD‑07A070‑1 Dale   Special     7‑Digit, 14 segment alphanumeric, w/ RH DP's & commas               Multiplexed planar neon flat-panel readout.
RK‑6 ALCO, Modulus, Rodan   Special     0‑9 ?               Edge-lit lightguide readout.
RK‑14 ALCO, Rodan   Special     0‑9, LH DP               Edge-lit lightguide readout.
S 10 S1 RFT 6370, CV5106, E1T Side N/A 37mm (1.457") dia. X 83mm (3.268") tall Glow position only (labeled) B12A             CRT electron beam decimal counting tube with phosphor screen.
S038B Wang   Side 13mm (0.512") 13.5mm (0.530") dia. 0‑9, LH & RH DP's SK‑207             Part number uncertain. Nipple top.
S/G DT‑1704B Tung‑Sol   Side     7 Segment Pins             'Digivac' neon readout.
SMI‑01 Sanyo   Side     7 Segment, RH DP Wires             'Eightron' neon readout used in Dictaphone model 1680 handheld calculator (1971). Nipple top.
SP8B ISE   Side     −, • 5 Wires             VFD for calculators. Indicates negative numbers and memory active. Nipple top.
SP10D7 Futaba   Side     −, I, K, double-headed arrow
(<−>)		 7 Wires of 13 (6 cut off), subminiature, circle, no key gap             VFD for calculators. Nipple top.
SP‑12A Iseden/Itron   Side     −, I 8 Wires of 14 (6 cut off), subminiature, circle, no key gap             VFD for calculators. Nipple top.
SP‑101 Babcock, Beckman, Sperry   Special 25.4mm (1.0")   7 segment, RH DP, RH :, RH comma ?? Pins, special arrangement             Planar neon gas discharge 'Panaplex' readout.
SP‑151 Babcock, Beckman, Sperry   Special 14mm (0.55") ?   3½‑Digit, 7 segment, AM, PM, : 40(?) Pins, special arrangement             Planar neon gas discharge 'Panaplex' readout for clocks.
SP‑331 Babcock, Beckman, Sperry   Special 7.75mm (0.305") 19mm (0.740") X 21mm (0.815") X 11.5mm (0.455") thick +, −, 1½‑Digit, 7 segment, RH DP's 20 Pins, special arrangement             Planar neon gas discharge 'Panaplex' readout.
SP‑332 Babcock, Beckman, Sperry   Special 7.75mm (0.305") 19mm (0.740") X 21mm (0.815") X 11.5mm (0.455") thick 2‑Digit, 7 segment, RH DP's 20 Pins, special arrangement             Planar neon gas discharge 'Panaplex' readout. Separate anodes allow single-digit multiplexing. Used in Heathkit clocks GC‑1005 & GC‑1092D.
SP‑333 Babcock, Beckman, Sperry   Special     3‑Digit, 7 segment, RH DP's               Planar neon gas discharge 'Panaplex' readout. Used in Tektronix Model 21 and 31 calculators.
SP‑334 Babcock, Beckman, Sperry   Special     +, −, 2½‑Digit, 7 segment, RH DP's               Planar neon gas discharge 'Panaplex' readout.
SP‑336 Babcock, Beckman, Sperry   Special     2‑Digit, 7 segment, RH DP's               Planar neon gas discharge 'Panaplex' readout. Single anode; if multiplexed, must be driven per unit rather than per digit.
SP‑351 Babcock, Beckman, Sperry 238‑003‑9‑001, 1970‑0067, HB‑351 Special 14mm (0.55")   +, −, 1½‑Digit, 7 segment, RH DP's ?? Pins, special arrangement             Planar neon gas discharge 'Panaplex' readout. Used in B&K 282 DMM and Data Precision 3500 VOM.
SP‑352 Babcock, Beckman, Sperry 238‑002‑9‑001, 411‑286, 411‑0286, 411‑295, 411‑0295, 1970‑0066, EX‑352, HB‑352 Special 14mm (0.550")   2‑Digit, 7 segment, RH DP's 20 Pins, special arrangement             Planar neon gas discharge 'Panaplex' readout. Separate anodes allow single-digit multiplexing. Used in B&K 282 DMM, Data Precision 3500 VOM, ESE ES‑124L clock, Heathkit GC‑1005, GC‑1092A & GC‑2005 clocks, and Heathkit HW‑104, SB‑104 & SB‑104A radio transceivers.
SP‑353 Babcock, Beckman, Sperry 411‑290, 411‑0290, HB‑353 Special 14mm (0.55")   3‑Digit, 7 segment, RH DP's 30 Pins, special arrangement             Planar neon gas discharge 'Panaplex' readout. Separate anodes allow single-digit multiplexing. Used in Heathkit IC‑2008A calculator, Data Precision 3500 VOM, and Datron 1051 & 1059 DMM's.
SP‑354 Babcock, Beckman, Sperry   Special 14mm (0.55")   +, −, 2½‑Digit, 7 segment, RH DP's ?? Pins, special arrangement             Planar neon gas discharge 'Panaplex' readout. Used in Datron DMM models 1051 & 1059.
SP‑355 Babcock, Beckman, Sperry   Special 14mm (0.55")   +, −, 3½‑Digit, 7 segment, RH DP's ?? Pins, special arrangement             Planar neon gas discharge 'Panaplex' readout.
SP‑356 Babcock, Beckman, Sperry   Special 14mm (0.55")   4‑Digit, 7 segment, RH DP's ?? Pins, special arrangement             Planar neon gas discharge 'Panaplex' readout.
SP‑358 Babcock, Beckman, Sperry   Special 14mm (0.55")   4‑Digit, 7 segment, : between digits 2 & 3 ?? Pins, special arrangement             Planar neon gas discharge 'Panaplex' readout.
SP‑362 Babcock, Beckman, Sperry   Special 13mm (0.512")   2‑Digit, 7 segment, RH DP's               Planar neon gas discharge 'Panaplex' readout.
SP‑425‑09 Babcock, Beckman, Sperry   Special 13mm (0.51")   9‑Digit, 7 segment, RH DP's & commas, +, −               Planar neon gas discharge 'Plasmaflex' readout. Multiplex.
SP‑732 Babcock, Beckman, Sperry   Special     2‑Digit, 7 segment, RH DP's 18 (19?) Pins, special arrangement             Planar neon gas discharge 'Panaplex' readout. Separate anodes allow single-digit multiplexing.
SP‑733 Babcock, Beckman, Sperry 411‑281, 411‑0281 Special     3‑Digit               Planar neon gas discharge 'Panaplex' readout. Used in Heathkit IC-2008A calculator.
SP‑735 Babcock, Beckman, Sperry   Special 7.75mm (0.305") 19mm (0.740") X 21mm (0.815") X 11.5mm (0.455") thick 1½‑Digit, 7 segment, RH DP's, w/ +, −, LH DP at left ?? Pins, special arrangement 180           Planar neon gas discharge 'Panaplex' readout. Single anode; if multiplexed, must be driven per unit rather than per digit.
SP‑736 Babcock, Beckman, Sperry   Special 7.75mm (0.305") 19mm (0.740") X 21mm (0.815") X 11.5mm (0.455") thick 2‑Digit, 7 segment, RH DP's 18 Pins, special arrangement 180           Planar neon gas discharge 'Panaplex' readout. Single anode; if multiplexed, must be driven per unit rather than per digit.
SP‑738 Babcock, Beckman, Sperry   Special 7.75mm (0.305") ??mm (?.???") X 21mm (0.815") X 11.5mm (0.455") thick 2½‑Digit, 7 segment, RH DP's, w/ +, −, LH DP at left ?? Pins, special arrangement 180           Planar neon gas discharge 'Panaplex' readout. Two anode connections; can be multiplexed by digit pairs, for example as in an assembly with SP‑736 for additional digits.
SP‑753 Babcock, Beckman, Sperry   Special     3‑Digit, 7 segment, RH DP's ?? Pins, special arrangement             Planar neon gas discharge 'Panaplex' readout.
SP‑754 Babcock, Beckman, Sperry   Special     +, −, 2½‑Digit, 7 segment, RH DP's ?? Pins, special arrangement             Planar neon gas discharge 'Panaplex' readout.
SP‑756 Babcock, Beckman, Sperry   Special 14mm (0.55")   2‑Digit, 7 segment, RH DP's ?? Pins, special arrangement             Planar neon gas discharge 'Panaplex' readout. Single anode; if multiplexed, must be driven per unit rather than per digit.
SZ‑J2 Zhishiguan   End (compact)     0‑9 SK‑136: 1f ?             Flat front, with fairly sharp edge. Nipple in base. Tubes unmarked.
TAF1093A Thomson CSF   Side 13mm (0.51")   0‑9, RH DP B13D ?             Nipple top.
TAF1317 Thomson CSF TAF1317A ? Side 13mm (0.51")   0‑9, LH & RH DP's Wires (13 ?)             Nipple top.
TAF1317A Thomson CSF TAF1317 ? Side 13mm (0.51")   0‑9, LH & RH DP's Wires (13 ?)             Nipple top.
TAU 7030 Thomson CSF ? GNP‑17A ?, XN‑11 ?, Z5700M ? Side 13mm (0.51") 45mm (1.77") tall 0‑9 ? Wires (13)             Nipple top.
VS10G ETL 8286, CV2239 ?, CV5290, VS10G/M N/A N/A   None B26A             'Trochotron' crossed-field electron beam decimal counting tube.
VS10G/M ETL CV5290, VS10G N/A N/A   None B26A             'Trochotron' crossed-field electron beam decimal counting tube. Same as VS10G, with magnetic shielding added.
VS10H ETL VX9210 N/A N/A   None B26A             'Trochotron' crossed-field electron beam decimal counting tube.
VS10K ETL   N/A N/A   None B26A 30           'Trochotron' crossed-field electron beam decimal counting tube. Low voltage design.
VX9210 ETL VS10H N/A N/A   None B26A             Crossed-field electron beam decimal counting tube.
XM1000 Telefunken B210GH End 15.5mm (0.610") 20.5mm (0.808") X 27mm (1.063") X 64.5mm (2.54") tall 0‑9, LH & RH DP's SK‑136             CRT readout using defocused electron beam projected through stencil mask onto phosphor screen.
XN1 Hivac, Lorenz   Side 14mm (0.55") 19mm (0.748") dia. X 47.6mm (1.874") tall 0‑9 SK‑116 ? wire 8 at front: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 200 200 130   <2.5> 2.0 <3.0> Nipple top.
XN2 Hivac   Side 14mm (0.55") 19mm (0.748") dia. X 47.6mm (1.874") tall 0‑9 ?   200 180 140   1.5 <2.6 - 2.8> 2.0 <3.0> Nipple top.
XN3 Hivac, Lorenz GN‑6, GN‑6A, XN3F Side 14mm (0.55") 19mm (0.748") dia. X 47.6mm (1.874") tall 0‑9 SK‑116 ? wire 8 at front: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 200 180 140   1.5 <2.6 - 2.8> 2.0 <3.0> Nipple top.
XN3F Hivac, Lorenz GN‑6, GN‑6A, XN3 Side 14mm (0.55") 19mm (0.75") dia. X 47.6mm (1.87") tall 0‑9 SK‑116 ? wire 8 at front: 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 200 180 140   1.5 <2.6 - 2.8> 2.0 <3.0> Filter coating. Nipple top.
XN5 Hivac   Side       Wires             'Numicator' Nixie-style readout tube. Nipple top.
XN6 Hivac   Side 12mm (0.47") 19mm (0.75") dia. X 47.6mm (1.87") tall 2‑Column, ½‑digit display (+, −[left], 1[right]) with "X" over all. SK‑116 ?, wire 8 at front, 5 wires removed: Anode=1, K"+"=6, K"−"=4, K"1"=10, K"X"=8             'Numicator' Nixie-style readout tube. Nipple top.
XN8                            
XN11 Hivac   Side     0‑9 Wires: 11, 10, 1, 2, 3, 4, 5, 6, 7, 8, 9             'Numicator' Nixie-style readout tube. Nipple top.
XN12 Hivac   Side     0‑9 Wires: 11, 10, 1, 2, 3, 4, 5, 6, 7, 8, 9             'Numicator' Nixie-style readout tube. Nipple top.
XN15FA                            
XN17F                            
XN23                            
XN51                            
XN51F                            
XN125A                            
XNP20                            
XNP28                            
XX170                            
Y‑1938 Archer, General Electric 276‑049, Y‑1939 Side 14.5mm (0.57") 22mm (0.875") dia. X 51mm (2.000") tall 7 Segment, RH DP 10 pins, circle w/ pin #10 slightly inset. Pin #10 to rear. filament: 1.5 VAC, segments: +27 VDC filament: 35, segments: 0.5 filament: 40, segments: 1.0 filament: 45, segments: 1.5 VFD. Lack of grid makes multiplexing difficult. Nipple top. With blue contrast filter coating?
Y‑1939 Archer, General Electric 276‑049, Y‑1938 Side 14.5mm (0.57") 22mm (0.875") dia. X 51mm (2.000") tall 7 Segment, RH DP 10 pins, circle w/ pin #10 slightly inset. Pin #10 to rear. filament: 1.5 VAC, segments: +27 VDC filament: 35, segments: 0.5 filament: 40, segments: 1.0 filament: 45, segments: 1.5 VFD. Lack of grid makes multiplexing difficult. Nipple top. Without filter coating?
Y‑4075 Archer, General Electric   Side     7 Segment Wires             VFD. Nipple top.
Y‑4102 General Electric         7 Segment ?               Vacuum Fluorescent Display?
Z302C Philips                          
Z303C Philips CV2271, CV6044, GC10B End N/A 29.5mm (1.161") dia. X 101.5mm (4.00") tall Glow position K8A: 1             'Dekatron' style glow-transfer decimal counting tube.
Z309                            
Z319                            
Z502S G.T.C., Mullard, Valvo 6476, 6476/A, CK6476, CV2325, GS10C, GS10C/S, M2465‑402 End N/A 33mm (1.30") dia. X 90.5mm (3.563") tall Glow position B12E             'Dekatron' style glow-transfer decimal counting/selector tube.
Z503M Mullard CV5291 ?, GR10A ? End N/A   Glow position               'Register Tube' similar in appearance to a 'Dekatron' style glow-transfer counter, but without guide electrodes. Does not count, but provides display closely resembling appearance of Dekatrons.
Z504S Amperex, Mullard, Philips   End N/A 30mm (1.18") dia. X 42mm (1.654") tall Glow position B13B             'Dekatron' style glow-transfer decimal counting tube.
Z505S Philips ZM1060 End N/A 30mm (1.18") dia. X 42mm (1.654") tall Glow position B13B             'Dekatron' style glow-transfer decimal counting tube.
Z510M RFT <WF>, Valvo   End 15.5mm (0.610") 28.5mm (1.122") dia. X 31mm (1.220") tall 0‑9 B13B: 1 170 160 127 1.5 2.0 - 2.5 3.0  
Z520M Adzam, Philips, RFT <WF> 122P224, 1970‑0002, 5031, 5092, 5092A, 6844A, 8037, 8421, 50347, B‑5031, B‑5092, B‑5092A, B‑6844A, B‑50347, BD‑302, CK6844A, CK8037, CK8421, CV5278, CV9316, GN‑4, GN‑4A, GR10M, HB‑106, JAN‑6844A, JAN‑CB‑6844A, JAN‑CZ‑6844A, JAN‑8037, JAN‑8421, M2726‑102500, NL‑5092, NL‑6844A, NL‑8037, NL‑8421, NL‑50347, Z560M, Z5600M, ZM1020, ZM1020/01, ZM1022 End 15.5mm (0.610") 28.5mm (1.122") dia. X 31mm (1.220") tall 0‑9 B13B: 1 170 160 140 1.0 1.5 - 2.0 2.5 Filter coating. Low curved front.
Z521M RFT <WF>                          
Z522M RFT <WF> Z566M, Z5220M, Z5660M, ZM1040, ZM1042 Side 30mm (1.18") 29mm (1.142") dia. X 68mm (2.677") tall 0‑9 B13B: 2 170 160 140 3.0 <3.0> 4.5 <5-12> 6.0 <20> Filter coating.
Z550M RFT <WF> 8453, ZM1050 End 3mm (0.118") 28.5mm (1.12") dia. X 31mm (1.22") tall 0‑9 B13B             Readout (and counting?) tube resembling 'Pixie' style position indicator tube.
Z552M RFT <WF>                          
Z560M RFT <WF> 122P224, 1970‑0002, 5031, 5092, 5092A, 6844A, 8037, 8421, 50347, B‑5031, B‑5092, B‑5092A, B‑6844A, B‑50347, BD‑302, CK6844A, CK8037, CK8421, CV5278, CV9316, GN‑4, GN‑4A, GR10M, HB‑106, JAN‑6844A, JAN‑CB‑6844A, JAN‑CZ‑6844A, JAN‑8037, JAN‑8421, M2726‑102500, NL‑5092, NL‑6844A, NL‑8037, NL‑8421, NL‑50347, Z520M, Z5600M, ZM1020, ZM1020/01, ZM1022 End 15.5mm (0.610") 30.1mm (1.185") dia. X 33.5mm (1.319") tall 0‑9 B13B: 1 170 145 135 1.0 <1.0> 1.75 <2-6> 2.5 <10> Filter coating. Low curved front.
Z561M RFT <WF> GS4, GS4A, Z5610M, ZM1021, ZM1023 End 15.5mm (0.610") 30.1mm (1.185") dia. X 33.5mm (1.319") tall A, V, Ω, +, −, ~, % B13B 170 145 135 1.0 <1.0> 1.75 <2-6> 2.5 <10> Symbols for test equipment. Filter coating. Low curved front.
Z562S RFT <WF>   End N/A   Glow position B13B             'Dekatron' style glow-transfer decimal counting tube. High domed front. Nipple in base.
Z565C     End N/A   Glow position               'Dekatron' style glow-transfer decimal counting tube.
Z565M     End N/A   Glow position               'Dekatron' style glow-transfer decimal counting tube.
Z566M RFT <WF> Z522M, Z5220M, Z5660M, ZM1040, ZM1042 Side 30mm (1.18") 29.2mm (1.150") dia. X 69mm (2.717") tall 0‑9 B13B: 2 170 150 140 3.0 <3> 4.5 <5-12> 6.0 <20> Filter coating. Nipple top.
Z567M RFT <WF> ZM1041 Side 30mm (1.18") 29mm (1.142") dia. X 69mm (2.717") tall +, −, ~ B13B             Filter coating. Nipple top.
Z568M RFT <WF> 7037, B‑7037, NL‑7037, Z5680M Side 50mm (2") 50mm (2") dia. X 107mm (4.250") tall 0‑9 SK‑137: 2, 4, 9, 7, 17, 8, 14, 3, 16, 12, 13 200 170 140 4 5.5 7 Filter coating. Nipple top.
Z570M RFT <WF> Z5700M, ZM1080, ZM1082 Side 13mm (0.512") 19mm (0.75") dia. X 47.5mm (1.870") tall 0‑9 B13D             Filter coating. Nipple top.
Z571M RFT <WF>   Side       Wires (12?), circle w/ key gap             Filter coating. Nipple top.
Z572S     End N/A   Glow position B27A             'Dekatron' style glow-transfer decimal counting tube.
Z573M RFT <WF>   Side 13mm (0.512") 19mm (0.750") dia. X 50mm (1.969") tall 0‑9, RH DP B13D: 13, 12, 1, 2, 3, 5, 6, 7, 8, 9, 11, RH DP=10             Filter coating. Nipple top.
Z574M RFT <WF> ZM1210 Side 15.5mm (0.61") 19mm dia. (0.75") X 47.5mm (1.87") tall 0‑9, LH DP B13D: 13, 12, 1, 2, 3, 5, 6, 7, 8, 9, 11, LH DP=4 170 170 140 1.5 <1.5> (DP 0.3 <0.3>) 2.25 <3-10> (DP 0.45 <0.5-2.0>) 3.0 <15> (DP 0.6 <3.0>) Filter coating. Nipple top.
Z576M RFT <WF> ?                          
Z580M RFT <WF> Z5800M Side 13mm (0.512") 19mm (0.750") dia. X 50mm (1.969") tall T, G, M, k, m, µ, n, p B13D: Anode=13, T=9, G=7, M=5, k=3, m=2, µ=1, n=12, p=11             Symbols for test equipment. Filter coating. Nipple top.
Z581M RFT <WF> Z5810M Side 13mm (0.512") 19mm (0.750") dia. X 50mm (1.969") tall A, F, H, S, V, Ω, Hz, s B13D: Anode=13, A=7, F=5, H=6, S=8, V=12, Ω=9, Hz=2, s=1             Symbols for test equipment. Filter coating. Nipple top.
Z590M RFT <WF> Z5900M Side 10mm (0.39") 12mm (0.47") dia. X 34mm (1.34") tall 0‑9, LH & RH DP's 14 Wires 170 150 140 1   2 <10> Filter coating. Nipple top.
Z870M RFT <WF>   Side 15.5mm (0.610") 22mm (0.87") dia. X 56mm (2.20") tall 0‑9 B9A             Bi‑quinary. Filter coating. Nipple top.
Z5220M RFT <WF> Z522M, Z566M, Z5660M, ZM1040, ZM1042 Side 30mm (1.18") 29mm (1.142") dia. X 68mm (2.677") tall 0‑9 B13B: 2 170 160 140 3.0 <3.0> 4.5 <5-12> 6.0 <20> Nipple top.
Z5600M RFT <WF> 122P224, 1970‑0002, 5031, 5092, 5092A, 6844A, 8037, 8421, 50347, B‑5031, B‑5092, B‑5092A, B‑6844A, B‑50347, BD‑302, CK6844A, CK8037, CK8421, CV5278, CV9316, GN‑4, GN‑4A, GR10M, HB‑106, JAN‑6844A, JAN‑CB‑6844A, JAN‑CZ‑6844A, JAN‑8037, JAN‑8421, M2726‑102500, NL‑5092, NL‑6844A, NL‑8037, NL‑8421, NL‑50347, Z520M, Z560M, ZM1020, ZM1020/01, ZM1022 End 15.5mm (0.610") 30.1mm (1.185") dia. X 33.5mm (1.319") tall 0‑9 B13B: 1 170 145 135 1.0 <1.0> 1.75 <2-6> 2.5 <10> Low curved front.
Z5610M RFT <WF> GS4, GS4A, Z561M, ZM1021, ZM1023 End 15.5mm (0.610") 30.1mm (1.185") dia. X 33.5mm (1.319") tall A, V, Ω, +, −, ~, % B13B 170 145 135 1.0 <1.0> 1.75 <2-6> 2.5 <10> Symbols for test equipment. High domed or low curved front.
Z5660M RFT <WF> Z522M, Z566M, Z5220M, ZM1040, ZM1042 Side 30mm (1.18") 29mm (1.14") dia. X 69mm (2.72") tall 0‑9 B13B: 2             Nipple top.
Z5670M RFT <WF>   Side 30mm (1.18") 29mm (1.14") dia. X 69mm (2.72") tall +, −, ~ B13B             Nipple top.
Z5680M RFT <WF> 7037, B‑7037, NL‑7037, Z568M Side 50mm (2") 50mm (2") dia. X 107mm (4.250") tall 0‑9 SK‑137: 2, 4, 9, 7, 17, 8, 14, 3, 16, 12, 13 200 170 140 4 5.5 7 Nipple top.
Z5700M RFT <WF> Z570M, ZM1080, ZM1082 Side 13mm (0.51") 19mm (0.75") dia. X 47.5mm (1.87") tall 0‑9 B13D             Nipple top.
Z5710M RFT <WF> Z571M Side       Wires (12?), circle w/ key gap             Nipple top.
Z5730M RFT <WF> Z573M Side 13mm (0.512") 19mm (0.750") dia. X 50mm (1.969") tall 0‑9, RH DP B13D: 13, 12, 1, 2, 3, 5, 6, 7, 8, 9, 11, RH DP=10             Nipple top.
Z5740M RFT <WF> Z574M Side 13mm (0.51") 19mm (0.75") dia. X 47.5mm (1.87") tall 0‑9, LH DP B13D: 13, 12, 1, 2, 3, 5, 6, 7, 8, 9, 11, LH DP=4             Nipple top.
Z5800M RFT <WF> Z580M Side 13mm (0.512") 19mm (0.750") dia. X 50mm (1.969") tall T, G, M, k, m, µ, n, p B13D: Anode=13, T=9, G=7, M=5, k=3, m=2, µ=1, n=12, p=11             Symbols for test equipment. Nipple top.
Z5810M RFT <WF> Z581M Side 13mm (0.512") 19mm (0.750") dia. X 50mm (1.969") tall A, F, H, S, V, Ω, Hz, s B13D: Anode=13, A=7, F=5, H=6, S=8, V=12, Ω=9, Hz=2, s=1             Symbols for test equipment. Nipple top.
Z5900M RFT <WF> Z590M Side 10mm (0.39") 12mm (0.47") dia. X 34mm (1.34") tall 0‑9, LH & RH DP's 14 Wires 170 150 140 1   2 <10> Nipple top.
Z8700M RFT <WF> Z870M Side 15.5mm (0.61") 22mm (0.87") dia. X 56mm (2.20") tall 0‑9 B9A             Bi‑quinary. Nipple top.
ZM11 Tungsram   End 21mm (0.83") 28mm (1.10") dia. X 38mm (1.50") tall (four separate segments arranged as a "+", and central dot) B9A ?             Five- and six- segmented variations of this design were also made; part numbers unknown. (ZM10, ZM12, ZM15, ZM16 ?)
ZM13 Tungsram   End 21mm (0.83") 28mm (1.10") dia. X 38mm (1.50") tall (vertical line), (circle w/ small gap) B9A ?             Symbols indicate on/off for unknown equipment.
ZM13U Tungsram   End 21mm (0.83") 28mm (1.10") dia. X 38mm (1.50") tall (vertical line), (circle) B9A ?             Symbols indicate on/off for unknown equipment. Improved version of ZM13 ?
ZM14 Tungsram   End 21mm (0.83") 28mm (1.10") dia. X 38mm (1.50") tall (vertical line), (circle), (triangle), (tri-wing star) B9A ?              
ZM1000 Amperex, Dario, Mullard, National Electronics, Philips, Valvo 411‑284, 411‑0284, 411284, ZM1000E, ZM1000R Side 14mm (0.55") 19mm (0.75") dia. X 49.5mm (1.95") tall 0‑9, LH DP Euro Grid: 1 170 170 140 1.5 2.5 4.5 <12> Nipple top. Used in Schneider Electronique EXA 210 desktop calculator; Bell & Howell IMD‑202‑2, Heathkit IM‑1202, SM‑600 and Philips PM 2421 Digital Multimeters; Philips PM6630 Frequency Counter; SAE MK VI and VIB FM Stereo Receivers.
ZM1000E Telefunken 411‑284, 411‑0284, 411284, ZM1000, ZM1000R Side 14mm (0.55") 19mm (0.75") dia. X 49.5mm (1.95") tall 0‑9, LH DP Euro Grid: 1 170 170 140 1.5 2.5 4.5 <12> Nipple top.
ZM1000R Philips, Valvo 411‑284, 411‑0284, 411284, ZM1000, ZM1000E Side 14mm (0.55") 19mm (0.75") dia. X 49.5mm (1.95") tall 0‑9, LH DP Euro Grid: 1 170 170 140 1.5 2.5 4.5 <12> Filter coating. Nipple top.
ZM1001 Philips, Valvo ZM1001E, ZM1001R Side 14mm (0.55") nominal 19mm (0.75") dia. X 49.5mm (1.95") tall +, −, ~, X, Y, Z Euro Grid: 1a 170 170 140 1.5 2.5 4.5 <12> Symbols for test equipment. Complementary to ZM1000. Nipple top.
ZM1001E Telefunken ? ZM1001, ZM1001R Side 14mm (0.55") nominal 19mm (0.75") dia. X 49.5mm (1.95") tall +, −, ~, X, Y, Z Euro Grid: 1a 170 170 140 1.5 2.5 4.5 <12> Symbols for test equipment. Complementary to ZM1000E. Nipple top.
ZM1001R Philips   Side 14mm (0.55") nominal 19mm (0.75") dia. X 49.5mm (1.95") tall +, −, ~, X, Y, Z Euro Grid: 1a 170 170 140 1.5 2.5 4.5 <12> Symbols for test equipment. Filter coating. Complementary to ZM1000R. Nipple top.
ZM1002 Philips, Valvo   Side 14mm (0.55") nominal 19mm (0.75") dia. X 49.5mm (1.95") tall s, ms, µs, ns, Hz, KHz, MHz Euro Grid: 1b 170 170 140 1.5 2.5 4.5 <12> Symbols for test equipment. Complementary to ZM1000. Nipple top.
ZM1005 Amperex, Philips ZM1005R Side 14mm (0.55") 19mm (0.75") dia. X 49.5mm (1.95") tall 0‑9, LH DP Euro Grid: 1 170 170 150 1.5 <6> 2.5 4.5 <20> For multiplexing. Nipple top.
ZM1005R Philips ZM1005 Side 14mm (0.55") 19mm (0.75") dia. X 49.5mm (1.95") tall 0‑9, LH DP Euro Grid: 1 170 170 150 1.5 <6> 2.5 4.5 <20> Filter coating. For multiplexing. Nipple top.
ZM1008     Side 14mm (0.55") 19mm (0.75") dia.   Euro Grid 170 170 150 1.5 <6> 2.5 4.5 <20> Nipple top.
ZM1010 Philips   Side 14mm (0.55") 19mm (0.75") dia. X 45.1mm (1.78") tall 0‑9, LH DP Euro Grid: 1c 170 170 140 1.5 2.5 4.5 <12> Nipple top. Reverse viewable.
ZM1011 Philips   Side 14mm (0.55") 19mm (0.75") dia. X 45.1mm (1.78") tall 0‑8 Euro Grid: 1d 170 170 140 1.5 2.5 4.5 <12> Nipple top.
ZM1012 Philips   Side 14mm (0.55") 19mm (0.75") dia. X 45.1mm (1.78") tall 1‑8 Euro Grid: 1e 170 170 140 1.5 2.5 4.5 <12> Nipple top.
ZM1013 Philips   Side 14mm (0.55") 19mm (0.75") dia. X 45.1mm (1.78") tall 0‑6 Euro Grid: 1f 170 170 140 1.5 2.5 4.5 <12> Nipple top.
ZM1014 Philips   Side 14mm (0.55") 19mm (0.75") dia. X 45.1mm (1.78") tall 1‑6 Euro Grid: 1g 170 170 140 1.5 2.5 4.5 <12> Nipple top.
ZM1015 Philips   Side 14mm (0.55") 19mm (0.75") dia. X 45.1mm (1.78") tall   Euro Grid 170 170 140 1.5 2.5 4.5 <12> Nipple top.
ZM1020 Amperex, Dario, ITT, Mullard, Philips, Siemens, Telefunken, Tesla, Valvo 122P224, 1970‑0002, 5031, 5092, 5092A, 6844A, 8037, 8421, 50347, B‑5031, B‑5092, B‑5092A, B‑6844A, B‑50347, BD‑302, CK6844A, CK8037, CK8421, CV5278, CV9316, GN‑4, GN‑4A, GR10M, HB‑106, JAN‑6844A, JAN‑CB‑6844A, JAN‑CZ‑6844A, JAN‑8037, JAN‑8421, M2726‑102500, NL‑5092, NL‑6844A, NL‑8037, NL‑8421, NL‑50347, Z520M, Z560M, Z5600M, ZM1020/01, ZM1022 End 15.5mm (0.610") 28.5mm (1.122") dia. X 31mm (1.220") tall 0‑9 B13B: 1 170 170 145 1.0 <1.0> 2.0 <2.0> 3.0 <3.0> W/ or W/O filter coating? Low curved front.
ZM1020/01 Philips 122P224, 1970‑0002, 5031, 5092, 5092A, 6844A, 8037, 8421, 50347, B‑5031, B‑5092, B‑5092A, B‑6844A, B‑50347, BD‑302, CK6844A, CK8037, CK8421, CV5278, CV9316, GN‑4, GN‑4A, GR10M, HB‑106, JAN‑6844A, JAN‑CB‑6844A, JAN‑CZ‑6844A, JAN‑8037, JAN‑8421, M2726‑102500, NL‑5092, NL‑6844A, NL‑8037, NL‑8421, NL‑50347, Z520M, Z560M, Z5600M, Z560M, Z5600M, ZM1020, ZM1022 End 15.5mm (0.610") 28.5mm (1.122") dia. X 31mm (1.220") tall 0‑9 B13B: 1 170 170 145 1.0 <1.0> 2.0 <2.0> 3.0 <3.0> Filter coating. Tinned pins. Low curved front.
ZM1021 Mullard, Philips, Valvo GS4, GS4A, Z561M, Z5610M, ZM1023 End 15.5mm (0.610") 28.5mm (1.12") dia. X 31mm (1.22") tall A, V, Ω,
+, −, ~, %		 B13B 170 170 145 1.0 2.0 3.0 Symbols for test equipment. Filter coating.
ZM1022 Amperex, Mullard, Philips, RTC, Siemens, Telefunken, Valvo 122P224, 1970‑0002, 5031, 5092, 5092A, 6844A, 8037, 8421, 50347, B‑5031, B‑5092, B‑5092A, B‑6844A, B‑50347, BD‑302, CK6844A, CK8037, CK8421, CV5278, CV9316, GN‑4, GN‑4A, GR10M, HB‑106, JAN‑6844A, JAN‑CB‑6844A, JAN‑CZ‑6844A, JAN‑8037, JAN‑8421, M2726‑102500, NL‑5092, NL‑6844A, NL‑8037, NL‑8421, NL‑50347, Z520M, Z560M, Z5600M, Z560M, Z5600M, ZM1020, ZM1020/01 End 15.5mm (0.610") 28.5mm (1.12") dia. X 31mm (1.22") tall 0‑9 B13B: 1 170 170 145 1.0 2.0 3.0  
ZM1022p Philips   End 15.5mm (0.610") 28.5mm (1.12") dia. X 31mm (1.22") tall 0‑9, LH DP B13B 170 170 145 1.0 2.0 3.0  
ZM1023 Mullard, Philips GS4, GS4A, Z561M, Z5610M, ZM1021 End 15.5mm (0.610") 28.5mm (1.12") dia. X 31mm (1.22") tall A, V, Ω,
+, −, ~, %		 B13B 170 170 145 1.0 2.0 3.0 Symbols for test equipment.
ZM1024 Mullard, Philips   End 15.5mm (0.610") 28.5mm (1.12") dia. X 31mm (1.22") tall c/s, Kc/s, Mc/s, s, ms, µs, ns B13B 170 170 145 1.0 2.0 3.0 Symbols for test equipment. Filter coating.
ZM1025 Philips   End 15.5mm (0.610") 28.5mm (1.12") dia. X 31mm (1.22") tall c/s, Kc/s, Mc/s, s, ms, µs, ns B13B 170 170 145 1.0 2.0 3.0 Symbols for test equipment.
ZM1026 Philips             170 170 145 1.0 2.0 3.0  
ZM1028 Philips   End 15.5mm (0.610") 28.5mm (1.12") dia. X 31mm (1.22") tall (angle), +, −, % B13B 170 170 145 1.0 2.0 3.0 Symbols for test equipment.
ZM1029 Philips             170 170 145 1.0 2.0 3.0  
ZM1030 Amperex, Philips, Valvo NL‑1032, NL‑1032N, ZM1032 Side 15.5mm (0.610") 22.2mm (0.875") dia. X 55.6mm (2.19") tall 0‑9 B9A, pin 8 at front: Anode1 (odd)=2, Anode2 (even)=9, K0/1=8, K2/3=7, K4/5=5, K6/7=4, K8/9=3, Screen=6             Bi‑quinary. Filter coating. Nipple top.
ZM1031 Philips, Valvo   Side 15.5mm (0.610") 22.2mm (0.875") dia. X 55.6mm (2.19") tall +, − B9A, pin 8 at front             Bi‑quinary. Filter coating.
ZM1031/01 Philips   Side 15.5mm (0.610") 22.2mm (0.875") dia. X 55.6mm (2.19") tall +, −, ~ B9A, pin 8 at front             Bi‑quinary. Filter coating.
ZM1032 Amperex, Philips NL‑1032, NL‑1032N, ZM1030 Side 15.5mm (0.610") 22.2mm (0.875") dia. X 55.6mm (2.19") tall 0‑9 B9A, pin 8 at front: Anode1 (odd)=2, Anode2 (even)=9, K0/1=8, K2/3=7, K4/5=5, K6/7=4, K8/9=3, Screen=6             Bi‑quinary. Nipple top.
ZM1033 Amperex, Philips   Side 15.5mm (0.610") 22.2mm (0.875") dia. X 55.6mm (2.19") tall +, − B9A, pin 8 at front             Bi‑quinary. Nipple top.
ZM1033/01 Philips   Side 15.5mm (0.610") 22.2mm (0.875") dia. X 55.6mm (2.19") tall +, −, ~ B9A, pin 8 at front             Bi‑quinary.
ZM1040 Mullard, Philips, Siemens, RFT <WF>, Ultron, Valvo Z522M, Z566M, Z5220M, Z5660M, ZM1042 Side 30mm (1.18") 29mm (1.14") dia. X 68mm (2.68") tall 0‑9 B13B: 2 170 160 140 3.0 <3.0> 4.5 <5-12> 6.0 <20> Filter coating. Smooth or nipple top.
ZM1041 Mullard, Philips Z567M Side 30mm (1.18") 29mm (1.14") dia. X 68mm (2.68") tall +, − B13B 170 170 140 3.0 4.5 6.0 Filter coating.
ZM1042 AEG, Mullard, Philips, Ultron, Valvo Z522M, Z566M, Z5220M, Z5660M, ZM1040 Side 30mm (1.18") 29mm (1.14") dia. X 68mm (2.68") tall 0‑9 B13B: 2 170 160 140 3.0 <3.0> 4.5 <5-12> 6.0 <20> Smooth or nipple top.
ZM1042/01 Valvo Z522M, Z566M, Z5220M, Z5660M, ZM1040, ZM1042 Side 30mm (1.18") 29mm (1.14") dia. X 68mm (2.68") tall 0‑9 B13B: 2 170 160 140 3.0 <3.0> 4.5 <5-12> 6.0 <20> Tinned pins.
ZM1043 Philips Z5670M Side 30mm (1.18") 29mm (1.14") dia. X 68mm (2.68") tall +, − B13B 170 170 140 3.0 4.5 6.0  
ZM1050 Amperex, Philips, Valvo 8453, Z550M End 3mm (0.118") 28.5mm (1.12") dia. X 31mm (1.22") tall 0‑9 B13B             Readout (and counting?) tube resembling 'Pixie' style position indicator tube.
ZM1060   Z505S End N/A 30mm (1.18") dia. X 42mm (1.654") tall Glow position B13B             'Dekatron' style glow-transfer decimal counting tube.
ZM1062                            
ZM1070 Valvo   End N/A   Glow position               'Dekatron' style glow-transfer decimal counting tube.
ZM1075 Mullard   Side 15.5mm (0.610") 18mm (0.709") dia. X 46mm (1.811") tall 0‑9 Wires             Anode mesh is horizontal wires only. Nipple top.
ZM1077     Side 15.5mm (0.610")   0‑9 Wires             Nipple top.
ZM1080 Mullard, Philips, Telefunken, Thomson CSF ? Z570M, Z5700M, ZM1082 Side 14mm (0.55") 19mm (0.75") dia. X 47.5mm (1.87") tall 0‑9 11 Wires 170 170 140 1.0 2.0 3.0 Nipple top. Filter coating.
ZM1081 Mullard, Philips GS6 ? Side 14mm (0.55") 19mm (0.75") dia. X 47.5mm (1.87") tall +, −, ~ B7D (4 wires) 170 170 140 1.0 2.0 3.0 Filter coating.
ZM1082 Mullard, Philips Z570M, Z5700M, ZM1080 Side 14mm (0.55") 19mm (0.75") dia. X 47.5mm (1.87") tall 0‑9 B13D (Wires) 170 170 140 1.0 2.0 3.0  
ZM1083 Mullard, Philips GS6A ? Side 14mm (0.55") 19mm (0.75") dia. X 47.5mm (1.87") tall +, −, ~ B7D (4 wires) 170 170 140 1.0 2.0 3.0  
ZM1100 Philips, Telefunken 1970‑0009, 5991, 8422, 4205991, B‑5961, B‑5991, B‑8422, B‑59917, B‑59917A, JAN‑8422, KS‑19944,L1, NL‑5961, NL‑5991, NL‑8422, ZM1102, ZM1180, ZM1182 End (compact) 15.5mm (0.610")   0‑9 SK‑136: 1             Filter coating.
ZM1102 Amperex, Mullard, Philips 1970‑0009, 5991, 8422, 4205991, B‑5961, B‑5991, B‑8422, B‑59917, B‑59917A, JAN‑8422, KS‑19944,L1, NL‑5961, NL‑5991, NL‑8422, ZM1100, ZM1180, ZM1182 End (compact) 15.5mm (0.610")   0‑9 SK‑136: 1              
ZM1120 Philips, Siemens 4021, 4032, 4041, 5810, 7009, 7977, 8502, B‑4021, B‑4021AL, B‑4021G, B‑4021L, B‑4032, B‑4041, B‑4081, B‑5810, B‑7009, BD‑200S, BD‑244, JAN‑7009, JAN‑7977, JAN‑8502, NL‑4021, NL‑4021A, NL‑4032, NL‑4041, NL‑7009, NL‑7977, NL‑8502, ZM1122 End 7.8mm (0.31")   0‑9 SK‑116: 1             Filter coating. Nipple in base.
ZM1122 Siemens 4021, 4032, 4041, 5810, 7009, 7977, 8502, B‑4021, B‑4021AL, B‑4021G, B‑4021L, B‑4032, B‑4041, B‑4081, B‑5810, B‑7009, BD‑200S, BD‑244, JAN‑7009, JAN‑7977, JAN‑8502, NL‑4021, NL‑4021A, NL‑4032, NL‑4041, NL‑7009, NL‑7977, NL‑8502, ZM1120 End 7.8mm (0.31")   0‑9 SK‑116: 1             Nipple in base.
ZM1130 Siemens   Side       Wires             Filter coating. Nipple top.
ZM1131 Siemens   Side       Wires             Filter coating. Nipple top.
ZM1132                            
ZM1133                            
ZM1134     Side       Wires             Filter coating. Nipple top.
ZM1136     Side       Wires             Filter coating.
ZM1136A Philips, Siemens   Side 13mm (0.512")   0‑9, LH & RH DP's Wires             Filter coating.
ZM1137 Siemens   Side 13mm (0.51") 19mm (0.75") dia. X 48mm (1.89") tall +, −, ~, Ω B9A 170 170 140 1.5 2 2.5 <12> Symbols for test equipment. Bi‑quinary. Filter coating.
ZM1138A     Side 13mm (0.512")   0‑9, RH DP Wires             Nipple top..
ZM1139 Siemens   Side 13mm (0.51") 19mm (0.75") dia. X 48mm (1.89") tall +, −, ~, Ω B9A 170 170 140 1.5 2 2.5 <12> Symbols for test equipment. Bi‑quinary.
ZM1150 Mullard, Philips   Special   36mm (1.42") X 27mm (1.06") X 8mm (0.32") tall 2‑Digit, 7 segment w/ RH "," decimal indicators 24 pin wide (25.4mm / 1.0") DIP, several pins omitted             Planar neon gas discharge readout similar to Sperry/Beckman/Babcock 'Panaplex'.
ZM1162 Mullard, Philips   End (compact) 15.5mm (0.61") 20mm (0.79") X 26mm (1.02") X 29mm (1.14") tall 0‑9 SK‑136: 1 170 170 140 1.0 2.0 3.0  
ZM1162A Philips   End (compact) 15.5mm (0.61") 20mm (0.79") X 26mm (1.02") X 29mm (1.14") tall 0‑9 SK‑136: 1f              
ZM1162M Philips   End (compact) 15.5mm (0.61") 20mm (0.79") X 26mm (1.02") X 29mm (1.14") tall   SK‑136              
ZM1170 Mullard, Philips   Side 15.5mm (0.610") 19mm (0.75") dia. X 47.5mm (1.87") tall 0‑9 B13D 170 170 140 1.0 2.0 3.0 Filter coating.
ZM1172 Mullard, Philips   Side 15.5mm (0.610") 19mm (0.75") dia. X 47.5mm (1.87") tall 0‑9 B13D 170 170 140 1.0 2.0 3.0  
ZM1174 Mullard, Philips   Side 15.5mm (0.610") 19mm (0.75") dia. X 47.5mm (1.87") tall 0‑9, LH DP B13D 170 170 140 1.0 2.0 3.0 Filter coating.
ZM1175 Mullard, Philips   Side 15.5mm (0.610") 19mm (0.75") dia. X 47.5mm (1.87") tall 0‑9, LH DP B13D 170 170 140 1.0 2.0 3.0  
ZM1176 Mullard, Philips   Side 15.5mm (0.610") 19mm (0.75") dia. X 47.5mm (1.87") tall 0‑9, RH DP B13D 170 170 140 1.0 2.0 3.0 Filter coating.
ZM1177 Mullard, Philips   Side 15.5mm (0.610") 19mm (0.75") dia. X 47.5mm (1.87") tall 0‑9, RH DP B13D 170 170 140 1.0 2.0 3.0 Anode mesh is horizontal wires only.
ZM1180 Siemens 1970‑0009, 5991, 8422, 4205991, B‑5961, B‑5991, B‑8422, B‑59917, B‑59917A, JAN‑8422, KS‑19944,L1, NL‑5961, NL‑5991, NL‑8422, ZM1100, ZM1102, ZM1182 End (compact) 15.5mm (0.61") 20mm (0.79") X 27.5mm (1.08") X 32mm (1.26") tall 0‑9 SK‑136: 1f             Filter coating.
ZM1181 Siemens   End (compact) 15.5mm (0.610") 20mm (0.79") X 27.5mm (1.08") X 32mm (1.26") tall +, −, Ω, (sine) SK‑136             Symbols for test equipment. Filter coating. Nipple in base.
ZM1182 Siemens 1970‑0009, 5991, 8422, 4205991, B‑5961, B‑5991, B‑8422, B‑59917, B‑59917A, JAN‑8422, KS‑19944,L1, NL‑5961, NL‑5991, NL‑8422, ZM1100, ZM1102, ZM1180 End (compact) 15.5mm (0.61") 20mm (0.79") X 27.5mm (1.08") X 32mm (1.26") tall 0‑9 SK‑136: 1f             Nipple in base.
ZM1183 Siemens   End (compact) 15.5mm (0.61") 20mm (0.79") X 27.5mm (1.08") X 32mm (1.26") tall +, −, Ω, (sine) SK‑136             Symbols for test equipment. Nipple in base.
ZM1184A     End (compact)       SK‑136             Filter coating.
ZM1186 Siemens   End (compact) 16.0mm (0.630") 20.5mm (0.807") X 27.5mm (1.08") X 32mm (1.26") tall 0‑9, LH DP SK‑136: 1g 180 180 145 2.0 (DP 0.2) 2.75 (DP 0.4) 3.5 <4.0> (DP 0.6 <0.7>) Filter coating. Nipple in base.
ZM1188 Siemens   End (compact) 16.0mm (0.630") 20.5mm (0.807") X 27.5mm (1.08") X 32mm (1.26") tall 0‑9, LH DP SK‑136: 1g 180 180 145 2.0 (DP 0.2) 2.75 (DP 0.4) 3.5 <4.0> (DP 0.6 <0.7>) Nipple in base.
ZM1200 Philips   Special 10mm (0.39") 28.3mm (1.11") dia. X 180mm (7.08") long 14‑Digits, 0‑9, RH DP, RH ' 2 X B17A (both ends)             'Pandicon' multi-digit multiplexed neon readout with nixie-style fully-formed digit cathodes.
ZM1202 Philips   Special 10mm (0.39") 28.3mm (1.11") dia. X 160mm (6.30") long 12‑Digits, 0‑9, RH DP, RH ' 2 X B17A (both ends)             'Pandicon' multi-digit multiplexed neon readout with nixie-style fully-formed digit cathodes.
ZM1204 Philips   Special 10mm (0.39") 28.3mm (1.11") dia. X 140mm (5.51") long 10‑Digits, 0‑9, RH DP, RH ' 2 X B17A (both ends)             'Pandicon' multi-digit multiplexed neon readout with nixie-style fully-formed digit cathodes.
ZM1206 Philips   Special 10mm (0.39") 28.3mm (1.11") dia. X 120mm (4.72") long 8‑Digits, 0‑9, RH DP, RH ' 2 X B17A (both ends)             'Pandicon' multi-digit multiplexed neon readout with nixie-style fully-formed digit cathodes. Used in Lago Calc, Inc. LC 816 desktop calculator.
ZM1210 Mullard, Philips, Telefunken Z574M Side 15.5mm (0.61") 19mm dia. (0.75") X 47.5mm (1.87") tall 0‑9, LH DP B13D: 13, 12, 1, 2, 3, 5, 6, 7, 8, 9, 11, LH DP=4 170 170 140 1.5 <1.5> (DP 0.3 <0.3>) 2.25 <3-10> (DP 0.45 <0.5-2.0>) 3.0 <15> (DP 0.6 <3.0>) Filter coating. Nipple top.
ZM1212 Mullard, Philips   Side 15.5mm (0.61") 19mm dia. (0.75") X 47.5mm (1.87") tall 0‑9, LH DP B13D: 13, 12, 1, 2, 3, 5, 6, 7, 8, 9, 11, LH DP=4             Nipple top.
ZM1230 Mullard, Philips   Side Inverted 15.5mm (0.61") 19mm dia. (0.75") X 47.5mm (1.87") tall 0‑9 B13D 170 170 145 1.5 2.5 3.5 Filter coating. Nipple bottom.
ZM1232 Mullard, Philips   Side Inverted 15.5mm (0.61") 19mm dia. (0.75") X 47.5mm (1.87") tall 0‑9 B13D 170 170 145 1.5 2.5 3.5 Nipple bottom.
ZM1235     Side Inverted     0‑9 Wires             Nipple bottom.
ZM1236                            
ZM1240                            
ZM1241 Siemens   Side 16mm (0.63") nominal 19mm dia. (0.75") X 47.5mm (1.87") tall +, −, ~, Ω 12 Wires             Filter coating. Complementary to ZM1240. Nipple top.
ZM1242     Side     0‑9 ? Wires. Circle?             Nipple top.
ZM1243 Siemens   Side 16mm (0.63") nominal 19mm dia. (0.75") X 47.5mm (1.87") tall +, −, ~, Ω 12 Wires             Complementary to ZM1242. Nipple top.
ZM1262                            
ZM1263 Mullard   Side 15.5mm   +, −, ~, (spiral) Wires             Nipple top.
ZM1290 Siemens   Side       Wires             Filter coating. Nipple top.
ZM1310     Side 12.5mm (0.49") 16mm (0.63") dia. X 39mm (1.54") tall 0‑9, RH DP 12 Wires, circle w/ 2 key gaps             Designed for multiplexing.
ZM1320     Side 12.5mm (0.49") 13mm (0.51") dia. X 37mm (1.46") tall 0‑9, RH DP 12 Wires, circle, no key             Designed for multiplexing.
ZM1325     Side 9.5mm (0.37") 13mm (0.51") dia. X 37mm (1.46") tall 0‑9, RH DP 12 Wires, circle, no key              
ZM1330 Siemens 1970‑0042, 5870S, 5870ST, B‑5870S, B‑5870ST, GR116D, NL‑5870S, NL‑5870ST, ZM1330K, ZM1332, ZM1332K Side 13.1mm (0.516") 13mm (0.512") dia. X 30.5mm (1.201") tall 0‑9, LH & RH DP's SK‑207: 1a 170 170 145 2.5 (DP 0.1) 3.0 (DP 0.2) 4.0 <6.0> (DP 0.5 <0.8>) Filter coating. Nipple top. For constant current (non-multiplexed) operation.
ZM1330K Siemens 1970‑0042, 5870S, 5870ST, B‑5870S, B‑5870ST, GR116D, NL‑5870S, NL‑5870ST, ZM1330, ZM1332, ZM1332K Side 13.1mm (0.516") 13mm (0.512") dia. X 30.5mm (1.201") tall 0‑9, LH & RH DP's SK‑207: 1a 170 170 145 2.5 (DP 0.1) 3.0 (DP 0.2) 4.0 <6.0> (DP 0.5 <0.8>) Filter coating. Nipple top. For constant current (non-multiplexed) operation. Suffix "K" indicates pre-cut wire leads.
ZM1332 Siemens 1970‑0042, 5870S, 5870ST, B‑5870S, B‑5870ST, GR116D, NL‑5870S, NL‑5870ST, ZM1330, ZM1330K, ZM1332F, ZM1332K Side 13.1mm (0.516") 13mm (0.512") dia. X 30.5mm (1.201") tall 0‑9, LH & RH DP's SK‑207: 1a 170 170 145 2.5 (DP 0.1) 3.0 (DP 0.2) 4.0 <6.0> (DP 0.5 <0.8>) Nipple top. For constant current (non-multiplexed) operation.
ZM1332F Siemens ? 1970‑0042, 5870S, 5870ST, B‑5870S, B‑5870ST, GR116D, NL‑5870S, NL‑5870ST, ZM1330, ZM1330K, ZM1332, ZM1332K Side 13.1mm (0.516") 13mm (0.512") dia. X 30.5mm (1.201") tall 0‑9, LH & RH DP's SK‑207: 1a 170 170 145 2.5 3.0 4.0  
ZM1332K Siemens 1970‑0042, 5870S, 5870ST, B‑5870S, B‑5870ST, GR116D, NL‑5870S, NL‑5870ST, ZM1330, ZM1330K, ZM1332, ZM1332F Side 13.1mm (0.516") 13mm (0.512") dia. X 30.5mm (1.201") tall 0‑9, LH & RH DP's SK‑207: 1a 170 170 145 2.5 (DP 0.1) 3.0 (DP 0.2) 4.0 <6.0> (DP 0.5 <0.8>) Nipple top. For constant current (non-multiplexed) operation. Suffix "K" indicates pre-cut wire leads.
ZM1334 Siemens B‑5853, B‑5853S, B‑5853‑S1, B‑5853ST, NL‑5853, NL‑5853S, NL‑5853ST, ZM1334K, ZM1336, ZM1336K Side 13.1mm (0.516") 13mm (0.512") dia. X 30.5mm (1.201") tall 0‑9, LH & RH DP's SK‑207: 1a 175 175 145 <11.0> (DP <1.0>) <14.0> (DP <2.0>) <18.0> (DP <3.0>) Filter coating. Nipple top. For multiplexed operation.
ZM1334K Siemens B‑5853, B‑5853S, B‑5853‑S1, B‑5853ST, NL‑5853, NL‑5853S, NL‑5853ST, ZM1334, ZM1336, ZM1336K Side 13.1mm (0.516") 13mm (0.512") dia. X 30.5mm (1.201") tall 0‑9, LH & RH DP's SK‑207: 1a 175 175 145 <11.0> (DP <1.0>) <14.0> (DP <2.0>) <18.0> (DP <3.0>) Filter coating. Nipple top. For multiplexed operation. Suffix "K" indicates pre-cut wire leads.
ZM1335 Siemens ZM1335K, ZM1337, ZM1337K Side 13.0mm (0.512") 13mm (0.512") dia. X 30.5mm (1.201") tall +, −, ~, Ω, RH DP SK‑207: 1e 170 170 145 1.5 (DP 0.1) 2.0 (DP 0.2) 2.8 <15.0> (DP 0.3 <0.6>) Filter coating. Complementary to ZM1330 and ZM1334. Nipple top. For constant current (non-multiplexed) or multiplexed operation.
ZM1335K Siemens ZM1335, ZM1337, ZM1337K Side 13.0mm (0.512") 13mm (0.512") dia. X 30.5mm (1.201") tall +, −, ~, Ω, RH DP SK‑207: 1e 170 170 145 1.5 (DP 0.1) 2.0 (DP 0.2) 2.8 <15.0> (DP 0.3 <0.6>) Filter coating. Complementary to ZM1330K and ZM1334K. Nipple top. For constant current (non-multiplexed) or multiplexed operation. Suffix "K" indicates pre-cut wire leads.
ZM1336 Siemens B‑5853, B‑5853S, B‑5853‑S1, B‑5853ST, NL‑5853, NL‑5853S, NL‑5853ST, ZM1334, ZM1334K, ZM1336K Side 13.1mm (0.516") 13mm (0.512") dia. X 30.5mm (1.201") tall 0‑9, LH & RH DP's SK‑207: 1a 175 175 145 <11.0> (DP <1.0>) <14.0> (DP <2.0>) <18.0> (DP <3.0>) Nipple top. For multiplexed operation.
ZM1336K Siemens B‑5853, B‑5853S, B‑5853‑S1, B‑5853ST, NL‑5853, NL‑5853S, NL‑5853ST, ZM1334, ZM1334K, ZM1336 Side 13.1mm (0.516") 13mm (0.512") dia. X 30.5mm (1.201") tall 0‑9, LH & RH DP's SK‑207: 1a 175 175 145 <11.0> (DP <1.0>) <14.0> (DP <2.0>) <18.0> (DP <3.0>) Nipple top. For multiplexed operation. Suffix "K" indicates pre-cut wire leads.
ZM1337 Siemens ZM1335, ZM1335K, ZM1337K Side 13.0mm (0.512") 13mm (0.512") dia. X 30.5mm (1.201") tall +, −, ~, Ω, RH DP SK‑207: 1e 170 170 145 1.5 (DP 0.1) 2.0 (DP 0.2) 2.8 <15.0> (DP 0.3 <0.6>) Complementary to ZM1332 and ZM1336. Nipple top. For constant current (non-multiplexed) or multiplexed operation.
ZM1337K Siemens ZM1335, ZM1335K, ZM1337 Side 13.0mm (0.512") 13mm (0.512") dia. X 30.5mm (1.201") tall +, −, ~, Ω, RH DP SK‑207: 1e 170 170 145 1.5 (DP 0.1) 2.0 (DP 0.2) 2.8 <15.0> (DP 0.3 <0.6>) Complementary to ZM1332K and ZM1336K. Nipple top. For constant current (non-multiplexed) or multiplexed operation. Suffix "K" indicates pre-cut wire leads.
ZM1350 Telefunken   Special 40mm (1.575") 58mm (2.283") tall X 43.5mm (1.713") wide X 17mm (0.669") thick 16 Segment alphanumeric incl. underscore & LH "," decimal indicator Special 18-pin, pin 1 at top:
Anode=16, Segment 1=1, Segment 2=2, Segment 3=3, Segment 4=4, Segment 5=5, Segment 6=6, Segment 8=8, Segment 9=9, Segment 10=10, Segment 11=11, Segment 12=12, Segment 13=13, Segment 14=14, DP=15, Underscore=17, Keep alive=18		 170 135 126-135 Various Various Various 'Varisymbol' planar neon readout. Life expectancy >10k hrs.
ZM1360 Telefunken   Special 60mm (2.362") 80mm (3.150") tall X 58mm (2.283") wide X 17mm (0.669") thick 16 Segment alphanumeric incl. underscore & LH "," decimal indicator Special 18-pin:
Anode=16, Segment 1=1, Segment 2=2, Segment 3=3, Segment 4=4, Segment 5=5, Segment 6=6, Segment 8=8, Segment 9=9, Segment 10=10, Segment 11=11, Segment 12=12, Segment 13=13, Segment 14=14, DP=15, Underscore=17, Keep alive=18		 170 135 126-135 Various Various Various 'Varisymbol' planar neon readout. Life expectancy >10k hrs.
ZM1370 Telefunken   Special 20mm (0.787") 30mm (1.181") tall X 20mm (0.787") wide X 17mm (0.669") thick 16 Segment alphanumeric incl. underscore & LH "," decimal indicator Special 18-pin:
Anode=16, Segment 1=1, Segment 2=2, Segment 3=3, Segment 4=4, Segment 5=5, Segment 6=6, Segment 8=8, Segment 9=9, Segment 10=10, Segment 11=11, Segment 12=12, Segment 13=13, Segment 14=14, DP=15, Underscore=17, Keep alive=18		 170 135 126-135 Various Various Various 'Varisymbol' planar neon readout. Life expectancy >10k hrs.
ZM1500/1204C   1204A ?, 1204B ? Special     12‑Digit, 7 segment, RH DP, RH ' 26‑Pin SIP, 3 pins omitted             Flat panel calculator display. Large nipple on back.
ZM1550                            
ZM1564 Unknown (Philips, Siemens, Telefunken ?)   Special 10mm (0.39") per digit, 27mm (1.06") overall 36mm (1.42") X 27mm (1.06") X 8mm (0.32") tall Fraction display w/ single-digit 7 segment numerator, denominator and "/" 24 pin ultra-wide (25.4mm / 1.0") DIP, several pins omitted             Planar neon gas discharge readout similar to Sperry/Beckman/Babcock 'Panaplex'. Nipple at corner. Part number not marked on units.
ZM13132                           Possible typo referring to ZM1332 ? Reportedly used in Drake DGS1 Frequency Synthesizer.


DISCLAIMER:

Data contained in this file were obtained from a variety of sources ranging from original manufacturers' data sheets, to examination of specimens in my collection, through third-party reports, to pure conjecture. Use at your own risk, no warranty or guarantee of accuracy is expressed or implied. Always exercise appropriate caution and safety measures when working with high voltage circuits and glassware!


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All original images, texts, webpage layouts and site design (including original source code) found under the http://mysite.verizon.net/res0fab4/ or http://home1.gte.net/res0fab4/ hierarchies (as well as any other applicable aliases) copyright © 1998, 1999, 2000, 2001, 2002, 2003, 2004 Alan J. Franzman. Permission is hereby granted to duplicate all or any portion(s) of these webpages for local (non- publicly accessible), non-commercial use. Company and corporation names, brand names, product names, and trademarks may be the property of their respective companies, corporations or current owners of the intellectual assets thereof, and their inclusion herein is for identification purposes only and does not constitute endorsement or permission to use them for any other purposes.

Product descriptions including substitutable part numbers, physical and electrical properties are assumed to be public domain or "fair use" and permission is hereby granted to duplicate, store, transmit, disseminate, provide access to, and/or use these data (excluding above mentioned copyrighted and proprietary materials) for any purposes.

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ACKNOWLEDGEMENTS AND LINKS:

This author extends his warmest thanks to the following for their generous contributions of literature, readout tubes, and related items:

Chris Barron

Jim Forbes (Selectric Typewriter Museum, Nixie Tube Clock and Watch)

Randall Logan (Scientific Solutions, Nixie Links)

Walter Shawlee 2 (Sphere Research Corporation, Sphere's Nixie Tube Data Page)

Peter J. Stonard (Stonard Home Page, Electron Tube Chronicles)

David Weiner (Westdave's Wild World of Clocks)

Peter Wendt (MCA Mafia, My Nixie Clock Project)

Dave Wright


Acknowledgement is also given to the following for their public contributions of Nixie tube and related data via the internet:

Hans Borngräber (Röhren-Kramladen, Ziffern und Zeichen‑Anzeigeröhren)

David Forbes (Cathode Corner, Nixie Tube Data)

Mike Harrison (Mike's Electric Stuff, Display and counting tubes)

Brent Hilpert (Early Electronic Calculator Technology Reference, EEC Display Devices)

Åke Holm (Åke's Tubedata, Alphanumeric displays)

Tom Jennings (World Power Systems, Electron Tube Datasheet database)

David Knight (East Island: Home page, Numerical Indicator (Nixie) Tubes)

Frank Philipse (Frank's Electron tube Pages)

Daisuke Suzuki (http://www.boreas.dti.ne.jp/~sd1250/, http://www.boreas.dti.ne.jp/~sd1250/nixie/nixie-data.html)
[NOTE: These pages are in Japanese. AltaVista's BabelFish does a fair job of translation. Copy the URL's into the "Translate a Web Page" box.]

Dieter Wächter (Tube‑Tester.com, Dieter's Nixie Tube Collection)

Raymond Weisling (Zetalink Technology, Products)


Thanks also to Jason Grainger, of Hewlett-Packard/Agilent Technologies.


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