Tube-number record
3Q/191E
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ClassR.F. Triode
Construction
Primary TypeTriode
EnvelopeWater-Cooled
SectionsSingle
Filament / Heater
MaterialThoriated tungsten
Absolute Maximum Ratings
Plate Voltage10000 V
Audio Performance
Key Features
- Water-cooled
- Thoriated tungsten filament
- High power RF operation
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class B Telephony (Carrier) | 8000 V | — | 3450 | 26 | 800 mA |
| Class C Power Amplifier (Anode Modulated Carrier) | 8000 V | — | — | — | 800 mA |
| Class C Power Amplifier or Oscillator (Unmodulated) | 10000 V | — | — | — |
Application Notes
Subject to wide variation in grid current depending upon the impedance of the load circuit.
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