Tube-number record
2V/531E
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BrandStandard Telephones and Cables Limited
ClassHalf-Wave Mercury-Vapour Rectifier
BaseSpecial / none
Construction
Primary TypeRectifier
EnvelopeGlass
Sections1
Filament / Heater
MaterialOxide-coated, shielded
Warm-up Time60s
Absolute Maximum Ratings
Plate Voltage20000 V
Cathode Current2500 mA
Audio Performance
Key Features
- Mercury-Vapour
- Oxide-coated filament
- Shielded filament
- High power
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Single-Phase Full Wave (In phase) | 7000 V | — | — | — | 5000 mA |
| Single-Phase Full Wave (Quadrature) | 7000 V | — | — | — | 10000 mA |
| Three-Phase Full Wave (In phase) | 8150 V | — | — | — |
Application Notes
After shipment or transit the valve must be pre-heated for not less than 30 minutes before any anode voltage is applied. Forced air cooling is recommended and required for high temperature operation.
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