Tube-number record
TBW12/25
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TBW12/25 is a tube type in the TubeDatabase archive (class: Industrial R.F. Power Triode). Recorded specifications: construction Triode, maximum plate voltage 13000 V, and maximum plate dissipation 20000 W. The archive does not yet hold a photographed example of this type.
ClassIndustrial R.F. Power Triode
Construction
Primary TypeTriode
EnvelopeWater Cooled
SectionsSingle
Filament / Heater
MaterialThoriated tungsten
Absolute Maximum Ratings
Plate Voltage13000 V
Plate Dissipation20000 W
Grid 1 Voltage-1500 V
Cathode Current4800 mA
Audio Performance
Key Features
- Water cooled
- Direct heating
- Industrial R.F. oscillator
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| R.F. Class C oscillator (Three-phase) | 12000 V | 20000 | — | 34 | 3200 mA |
| R.F. Class C oscillator (Three-phase) | 10000 V | 20000 | — | 34 | 3200 mA |
| R.F. Class C oscillator (Three-phase) | 8000 V | 20000 | — | 34 | 3200 mA |
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