3Q/292E
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ClassDouble Ended Water Cooled Triode
Construction
Primary TypeTriode
EnvelopeWater Cooled
Sections1
Filament / Heater
MaterialTungsten
Absolute Maximum Ratings
Plate Voltage17500 V
Plate Dissipation80000 W
Audio Performance
Power Output100000 W
Key Features
- Water Cooled
- Double Ended
- High Power Output
- Integral Water Jacket
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class B AF Power Amplifier (Balanced 2 valve) | 14000V | 20000 | 1800 | 36 | 6500mA |
| Class B RF Telephony Modulated Carrier | 17500V | 20000 | 1800 | 36 | 4800mA |
| Class C Power Amplifier (Anode Subject to Modulation) | 12000V | 20000 | 1800 | 36 | 5000mA |
| Class C Power Amplifier or Oscillator (Unmodulated) | 17500V | 20000 | 1800 | 36 | 9600mA |
Application Notes
Water jacket is an integral part of the valve. Maximum water pressure in jacket is 35 lb. per sq. in.
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