A237
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BrandEnglish Electric Valve Co. Ltd.
ClassHigh Vacuum Rectifier
BaseGoliath Edison Screw (E40/45)
Construction
Primary TypeHigh Vacuum
Rectifier TypeSingle Diode
EnvelopeGlass
Filament / Heater
MaterialThoriated Tungsten
Absolute Maximum Ratings
Plate Voltage65000 V
Plate Dissipation160 W
Cathode Current250 mA
Audio Performance
Key Features
- Thoriated Tungsten filament
- Compact construction
- Reliable operation at high voltage
- Natural or Forced-air cooling
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Nominal Impedance | - | - | 1000 | - | 350mA |
Application Notes
X-rays are produced when operated with a peak inverse anode voltage above 16kV. Adequate shielding is required. Valve should be operated vertically.
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