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275
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BrandWestern Electric
ClassPower Triode
Construction
Primary TypeTriode
EnvelopeGlass
Sections1
Filament / Heater
MaterialOxide-coated
Absolute Maximum Ratings
Plate Voltage450 V
Plate Dissipation25 W
Audio Performance
Power Output4.5 W
Key Features
- Low amplification factor
- Power amplifier triode
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class A1 | 400 V | 3000 | 1000 | 3 | 60 mA |
Application Notes
Commonly used in audio output stages.
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