F-5667
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BrandFederal Telephone and Radio Company
ClassPower Triode
Construction
Primary TypeTriode
EnvelopeGlass/Metal
Base MaterialMetal Anode
SectionsSingle
Filament / Heater
MaterialPure tungsten
Absolute Maximum Ratings
Plate Voltage10000 V
Plate Dissipation7500 W
Grid 1 Voltage-1500 V
Cathode Current7.5 mA
Audio Performance
Power Output15000 W
Key Features
- Ruggedly constructed
- Forced-air cooled
- Heavy wall anode
- Pure tungsten filament
- Up to 22.5 MHz full ratings
- 50 MHz permissible at reduced ratings
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Audio-Frequency Power Amplifier and Modulator - Class B (per tube) | 7500V | - | - | 21 | 1600mA |
| Radio-Frequency Power Amplifier - Class B Telephony | 9000V | - | - | 21 | 800mA |
| Plate-Modulated RF Power Amplifier - Class C Telephony | 7500V | - | - | 21 | 880mA |
| RF Power Amplifier and Oscillator - Class C Telegraphy | 9000V | - | - | 21 | 2000mA |
Application Notes
Specifically engineered for RF heating equipment and communication transmitters. Operation above 15 MHz may require extra air-flow on the dish center.
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