F-129-R
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BrandFederal
ClassPower Triode
FilamentV @ mA
Construction
Primary TypeTriode
EnvelopeGlass
SectionsSingle
Filament / Heater
MaterialPure tungsten
Absolute Maximum Ratings
Plate Voltage12000 V
Plate Dissipation5000 W
Grid 1 Voltage-1500 V
Cathode Current9500 mA
Audio Performance
Power Output8000 W
Key Features
- Forced-air-cooled anode
- Pure tungsten filament
- High power output
- Operation up to 30 megacycles
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Audio-Frequency Power Amplifier and Modulator - Class B | 10000V | - | - | 26 | 1150mA |
| Radio-Frequency Power Amplifier - Class B Telephony | 10000V | - | - | 26 | 700mA |
| Plate-Modulated Radio-Frequency Power Amplifier - Class C Telephony | 8000V | - | - | 26 | 820mA |
| Radio-Frequency Power Amplifier and Oscillator - Class C Telegraphy | 12000V | - | - | 26 | 1420mA |
Application Notes
The F-129-R is designed for use as a radio-frequency power amplifier, oscillator, or Class B modulator.
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