F-5771
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BrandFederal Telephone and Radio Corporation
ClassPower Triode
Construction
Primary TypeTriode
EnvelopeGlass and Metal (Water-cooled)
Sections1
Filament / Heater
MaterialThoriated Tungsten
Absolute Maximum Ratings
Plate Voltage15000 V
Plate Dissipation22500 W
Grid 1 Voltage-1600 V
Cathode Current6800 mA
Audio Performance
Power Output55000 W
Key Features
- Water-cooled anode
- Thoriated tungsten filament
- Re-entrant anode design
- Minimized lead inductance
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class B Audio Power Amplifier | 12500V | - | - | 20 | 6400mA |
| Class C Plate-Modulated RF Amplifier | 10000V | - | - | - | 3800mA |
| Class C RF Power Amplifier/Oscillator | 15000V | - | - | - | 4500mA |
Application Notes
Particularly suitable for high-frequency applications up to 25 megacycles at full ratings, 50 megacycles at reduced ratings. Designed for use as radio-frequency amplifier, oscillator, or Class B modulator.
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