TA 3/500
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BrandPhilips
ClassTransmitting Triode
Base3-pin base with side and top terminals
Construction
Primary TypeTriode
EnvelopeGlass
Filament / Heater
Absolute Maximum Ratings
Plate Voltage4000 V
Plate Dissipation400 W
Audio Performance
Key Features
- High transconductance
- High operating reliability
- Nickel base for vertical mounting
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Telegraphy | 4000V | 3000 | 13500 | 40 | 125mA |
Application Notes
At an anode voltage of 3000V, high useful power is achieved. For wavelengths above 150 meters, plate voltage can be increased to 3500V or 4000V depending on dissipation limits.
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