Tube-number record
T-25 P
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ClassHigh Power Transmitting Triode
Construction
Primary TypeTriode
EnvelopeGlass/Metal
Sections1
Filament / Heater
MaterialThoriated tungsten
Absolute Maximum Ratings
Plate Voltage15000 V
Plate Dissipation25000 W
Grid 1 Voltage-1000 V
Cathode Current12000 mA
Audio Performance
Key Features
- VHF transmitting
- Television transmitters
- Industrial generators
- High power
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| RF Amplifier Class B Grounded Cathode (f < 10 MHz) | 15000 V | 56000 | 1035.7 | 58 | 5000 mA |
Application Notes
Intended for use in VHF transmitters, TV power stages, and industrial heating applications. Forced air cooling required.
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