F-343-A
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BrandFederal
ClassPower Triode
Construction
Primary Typetriode
EnvelopeGlass/Metal water-cooled
Sections1
Filament / Heater
MaterialPure tungsten
Absolute Maximum Ratings
Plate Voltage18000 V
Plate Dissipation10000 W
Grid 1 Voltage-1500 V
Cathode Current2000 mA
Audio Performance
Power Output18000 W
Key Features
- Water-cooled anode
- Pure tungsten filament
- Radio-frequency amplifier
- Oscillator
- Modulator
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Audio-Frequency Power Amplifier and Modulator Class B (Values for two tubes) | 12000V | - | - | 40 | 2600mA |
| Plate-Modulated Radio-Frequency Power Amplifier Class C Telephony | 7500V | - | - | 40 | 1000mA |
| Radio-Frequency Power Amplifier and Oscillator Class C Telegraphy | 15000V | - | - | 40 | 1100mA |
Application Notes
Maximum ratings apply up to 4 megacycles. For higher frequencies, see percentage rating chart.
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