Tube-number record
6952
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BrandRCA
ClassBeam Power Tube
Construction
Primary TypeBeam tetrode / beam power
EnvelopeCeramic-Metal
Base MaterialLiquid Cooled Block
SectionsSingle
Filament / Heater
MaterialOxide-Coated, Multistrand, Matrix-Type
Warm-up Time90s
Absolute Maximum Ratings
Plate Voltage55000 V
Plate Dissipation8000 W
Grid 2 Voltage2200 V
Grid 1 Voltage400 V
Cathode Current80000 mA
Audio Performance
Key Features
- Liquid Cooled
- Short-Pulse Service
- Matrix-Type Filamentary Cathode
- Ceramic-Metal Construction
- Airborne Use Optimized
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class B Pulsed RF Amplifier 425 MHz (13us pulse) | 40000 V | — | — | 7 | 75000 mA |
| Class B Pulsed RF Amplifier 425 MHz (60us pulse) | 19000 V | — | — | 7 | 25000 mA |
Application Notes
For grid-driven, plate-pulsed amplifier applications at frequencies from 174 to 600 Mc. Requires liquid cooling of filament block, cathode, grid-1, grid-2, and plate.
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