6886
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BrandThomson-CSF
ClassTriode
BaseCircular/Coaxial Cavity
Filament6.3V @ 2100mA
Construction
Primary TypeTriode
EnvelopeCeramic Metal
SectionsSingle
Filament / Heater
Heater NotesIndirect heating; preheating time 2 minutes.
Absolute Maximum Ratings
Plate Voltage6000 V
Plate Dissipation250 W
Cathode Current9000 mA
Audio Performance
Key Features
- Forced air cooled
- Planar structure
- UHF/VHF operation
- High frequency resonant cavity mounting
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Pulse Oscillator (3000 MHz) | 6000V | 25000 | 2800 | 70 | 6000mA |
| Pulse Oscillator (Heater 7.0 V) | 6000V | 25000 | 2800 | 70 | 12000mA |
Application Notes
In high frequency operation, back bombardment raises cathode temperature. After adjustment, heater voltage must be reduced to prevent overheating. Cooling air flow must continue for 2 minutes after power down.
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