Tube-number record
COLD CATHODE TEN DIGIT NUMERAL INDICATOR TUBE
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ClassIndicator Tube
BaseFlexible / flying leads
Construction
Primary TypeOther / special
EnvelopeGlass, 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
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Numeral display | 170 V | — | — | — | 2.5 mA |
| Decimal point display | 170 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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