Tube-number record
313 C/F
0 archive entries
313 C/F is a tube type in the TubeDatabase archive (class: Cold Cathode Gas Triode). Recorded specifications: brand Western Electric, construction Other / special, socket 4-pin, and maximum plate voltage 175 V. The archive does not yet hold a photographed example of this type.
BrandWestern Electric
ClassCold Cathode Gas Triode
Base4-pin
Construction
Primary TypeOther / special
EnvelopeGlass
SectionsSingle
Filament / Heater
Absolute Maximum Ratings
Plate Voltage175 V
Grid 1 Voltage85 V
Cathode Current10 mA
Audio Performance
Key Features
- Gas-filled
- Cold cathode
- Trigger tube
- Requires no heater power
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Nominal Triggering | 150 V | — | — | — | 10 mA |
Application Notes
Commonly used in telephone switching systems as a relay or trigger device.
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