342A
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BrandBell Telephone Laboratories
ClassWater Cooled Triode
Construction
Primary TypeTriode
EnvelopeWater Cooled
SectionsSingle
Filament / Heater
MaterialTungsten
Absolute Maximum Ratings
Plate Voltage20000 V
Plate Dissipation25000 W
Cathode Current2500 mA
Audio Performance
Power Output30000 W
Key Features
- Water cooled
- Tungsten filament
- High power output
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Average Characteristics | 15000V | - | 6800 | 40 | 1300mA |
| Class B Audio Amplifier | 15000V | - | 2400 | - | 1600mA |
| Class B Radio-Frequency Amplifier | 18000V | - | - | - | 1400mA |
| Class C RF Oscillator/Power Amplifier | 18000V | - | - | - | 2500mA |
| Class C RF Amplifier - Plate Modulated | 12500V | - |
Application Notes
Used in Class B audio, Class B RF, and Class C RF power applications. Recommended driving power for audio stages is 1,000 watts.
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