AH238
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BrandEnglish Electric Valve Co Ltd
ClassMercury Vapour Rectifier
BaseGoliath Edison screw
Construction
Primary TypeRectifier
Rectifier TypeMercury Vapour
EnvelopeGlass
Base MaterialMetal/Ceramic
Sections1
Filament / Heater
MaterialOxide coated
Warm-up Time60s
Absolute Maximum Ratings
Plate Voltage13000 V
Cathode Current1250 mA
Audio Performance
Key Features
- Hot cathode
- Mercury Vapour
- High voltage
- Vertical mounting
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Single Phase Full Wave | 4500V | - | - | - | 1250mA |
| Single Phase Bridge | 9100V | - | - | - | 1250mA |
| Three Phase Half Wave | 5300V | - | - | - | 1250mA |
Application Notes
Condensed mercury temperature must be controlled; heating time is dependent on ambient temperature.
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