Tube-number record
HALF WAVE MERCURY VAPOUR RECTIFIER
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ClassRectifier
BaseScrew / Edison base
Construction
Primary TypeRectifier
Rectifier Typemercury-vapour
EnvelopeGlass
Sectionssingle
Filament / Heater
Materialoxide-coated shielded
Absolute Maximum Ratings
Plate Voltage20000 V
Cathode Current1250 mA
Audio Performance
Key Features
- Oxide-coated shielded filament
- Mercury vapour fill
- Giant Edison Screw base
- Forced ventilation capability
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Circuit 2 (2 Valves) | 6400 V | — | — | — | 2500 mA |
| Circuit 3 (4 Valves) | 13000 V | — | — | — | 2500 mA |
| Circuit 4 (3 Valves) | 9500 V | — | — | — | 3750 mA |
Application Notes
After shipment or transit the valve must be pre-heated not less than 30 minutes before any anode voltage is applied so that the mercury may be distributed correctly. Temperature limits given under natural ventilation are only valid for unrestricted natural ventilation, forced air blast being required for operation up to the maximum condensed mercury temperature limit.
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