F-5680
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BrandFederal
ClassPower Triode
Construction
Primary TypeTriode
EnvelopeGlass
Sections1
Filament / Heater
MaterialThoriated Tungsten
Absolute Maximum Ratings
Plate Voltage6000 V
Plate Dissipation2500 W
Grid 1 Voltage-2000 V
Audio Performance
Power Output7200 W
Key Features
- Air-cooled anode
- Thoriated tungsten cathode
- Wide spacing between elements
- Lack of internal insulators
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Radio-Frequency Power Amplifier and Oscillator-Class C Telegraphy | 6000V | - | - | 25 | 1400mA |
| Audio-Frequency Power Amplifier and Modulator-Class B | 5000V | - | 4000 | 25 | 2250mA |
| Pulsed Operation | 15500V | - | - | 25 | 200mA |
Application Notes
Especially suitable for high voltage pulse applications due to wide element spacing and lack of internal insulators. Maximum ratings apply up to 30 megacycles.
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