Tube-number record
TH 167 A
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TH 167 A is a tube type in the TubeDatabase archive (class: Transmitting Triode). Recorded specifications: brand Thomson-CSF, construction Triode, socket Special / none, maximum plate voltage 15000 V, and maximum plate dissipation 50000 W. The archive does not yet hold a photographed example of this type.
BrandThomson-CSF
ClassTransmitting Triode
BaseSpecial / none
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) | 10000 V | 60000 | 366.67 | 22 | 9500 mA |
| Oscillator (Industrial) | 12500 V | 60000 | 366.67 | 22 | 10500 mA |
| Oscillator (Industrial) | 15000 V | 60000 | 366.67 | 22 | 10000 mA |
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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