TA 4/800
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BrandPHILIPS
ClassTriode
Construction
Primary TypeTriode
EnvelopeGlass
SectionsSingle
Filament / Heater
MaterialTungsten
Absolute Maximum Ratings
Plate Voltage4000 V
Plate Dissipation500 W
Audio Performance
Key Features
- H.F. amplifier
- Oscillator
- Direct heating
- Vertical mounting position
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| C telegraphy | 4000V | 4500 | - | 41 | - |
| B telephony | 4000V | 4500 | - | 41 | - |
| C plate modulation | 3000V | 4500 | - | 41 | - |
Application Notes
Commonly used for Diathermy, H.F. amplification and oscillation.
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