Tube-number record
MERCURY VAPOUR RECTIFIER
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BrandEnglish Electric Valve Co. Ltd.
ClassRectifier
BaseJumbo
Construction
Primary TypeRectifier
Rectifier TypeMercury Vapour
EnvelopeGlass
Base MaterialMetal/Ceramic
SectionsSingle
Filament / Heater
MaterialOxide Coated
Warm-up Time60s
Absolute Maximum Ratings
Plate Voltage20000 V
Cathode Current2500 mA
Audio Performance
Key Features
- Hot Cathode
- Mercury Vapour
- High Power
- X-ray radiation warning
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Three phase full wave | 19000 V | — | — | — | 7500 mA |
Application Notes
The 8698 will provide a d.c. output of 19kv 7.5A in a three phase full wave circuit. X-rays are produced when operated above 16kv.
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