3068-A
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BrandStandard Valves
ClassSingle Ended Water Cooled Triode
Construction
Primary TypeTriode
EnvelopeWater Cooled
Filament / Heater
MaterialPure Tungsten
Absolute Maximum Ratings
Plate Voltage17500 V
Plate Dissipation160000 W
Cathode Current25000 mA
Audio Performance
Power Output180000 W
Key Features
- Pure Tungsten filament
- Water cooled
- Single ended
- Constant voltage type filament
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class B A.F. Amp. and Mod. (Balanced 2-valve, max signal) | 12500V | 40000 | 900 | 36 | 13000mA |
| Class B Telephony (Modulated Carrier) | 17500V | 40000 | 900 | 36 | 9600mA |
| Class C Telegraphy (Unmodulated) | 17500V | 40000 | 900 | 36 | 19200mA |
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