Tube-number record
F-320BA/220CA
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BrandFederal Telephone and Radio Company
ClassPower Triode
Construction
Primary TypeTriode
EnvelopeGlass and External Anode
SectionsSingle
Filament / Heater
MaterialPure tungsten
Absolute Maximum Ratings
Plate Dissipation5000 W
Audio Performance
Key Features
- Forced air-cooled
- Three-electrode design
- Pure tungsten filament
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| R-F Amplifier, Oscillator, or Class B Modulator | — | — | — | 40 | 850 mA |
Application Notes
Designed for use as an R-F Amplifier, Oscillator, or Class B Modulator. Maximum ratings apply up to 4 megacycles. Plate dissipation reduced to 5kW compared to standard F-320-B.
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