TH 167 A
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BrandThomson-CSF
ClassTransmitting Triode
BaseTerminal
Construction
Primary TypeTriode
EnvelopeGlass and Metal
SectionsSingle
Filament / Heater
Materialthoriated tungsten
Absolute Maximum Ratings
Plate Voltage15000 V
Plate Dissipation50000 W
Grid 1 Voltage-2000 V
Cathode Current70000 mA
Audio Performance
Key Features
- Water cooled anode
- Dielectric heating applications
- Thoriated tungsten filament
- Direct heating
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Oscillator (Industrial) | 10000V | 60000 | 366.67 | 22 | 9500mA |
| Oscillator (Industrial) | 12500V | 60000 | 366.67 | 22 | 10500mA |
| Oscillator (Industrial) | 15000V | 60000 | 366.67 | 22 | 10000mA |
Application Notes
The anode is equipped with a removable cooler capable of dissipating 50 kW. The tube should be protected against stray oscillations before voltage application using an efficient damping circuit. Filament surge current must not exceed 800A.
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