4037-A
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BrandStandard Valves
ClassMercury Vapour Rectifier
BaseStandard British 4 pin
Construction
Primary TypeHot Cathode Mercury Vapour Rectifier
Rectifier TypeHalf-wave
EnvelopeGlass
SectionsSingle
Filament / Heater
MaterialOxide coated
Absolute Maximum Ratings
Plate Voltage1000 V
Cathode Current800 mA
Audio Performance
Key Features
- Oxide coated filament
- Constant voltage type
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Half-wave rectifier | 300V | - | - | - | 250mA |
Application Notes
Hot cathode mercury vapour rectifier with oxide coated filament.
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