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Tube Database (7,341 tube types · 1,270 archive entries)

Pre (2,630 tube types), Other (2,603 tube types), Power (1,292 tube types), Rectifier (816 tube types)
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Tube-number record

COLD CATHODE TEN DIGIT NUMERAL INDICATOR TUBE

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ClassIndicator Tube
BaseFlexible / flying leads

Construction

Primary TypeOther / special
Envelope
Glass, side-viewing
Base MaterialGlass-to-metal seals
Sections11 (10 digits + 1 decimal)

Filament / Heater

Absolute Maximum Ratings

Plate Voltage170 V
Cathode Current3.5 mA

Audio Performance

Key Features
  • Long life
  • Red contrast filter
  • Decimal point on left hand side
  • 15.5mm numeral height

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Numeral display170 V———2.5 mA
Decimal point display170 V———0.5 mA

Application Notes

The tube may be soldered directly into the circuit, but heat conduction to the glass-to-metal seals should be kept to a minimum by the use of a thermal shunt.

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