A207
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BrandEnglish Electric Valve Company Limited
ClassHigh Vacuum Rectifier
BaseGoliath Edison screw E40/45
Construction
Primary TypeHalf-wave rectifier
Rectifier TypeHigh vacuum
EnvelopeGlass
Filament / Heater
Materialthoriated tungsten
Absolute Maximum Ratings
Plate Voltage45000 V
Plate Dissipation130 W
Cathode Current350 mA
Audio Performance
Key Features
- High vacuum
- X-ray emission warning above 16kV
- Natural cooling
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Nominal Operating Condition | - | - | 600 | - | 300mA |
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