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Tube Database (7,341 tube types · 1,270 archive entries)

Pre (2,630 tube types), Other (2,603 tube types), Power (1,292 tube types), Rectifier (816 tube types)
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MERCURY VAPOUR RECTIFIER vacuum tube outline illustration

Tube-number record

MERCURY VAPOUR RECTIFIER

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MERCURY VAPOUR RECTIFIER is a tube type in the TubeDatabase archive (class: Rectifier). Recorded specifications: brand English Electric Valve Co. Ltd., construction Rectifier, base Metal/Ceramic, socket Jumbo, and maximum plate voltage 20000 V. The archive does not yet hold a photographed example of this type.

BrandEnglish Electric Valve Co. Ltd.
ClassRectifier
BaseJumbo

Construction

Primary TypeRectifier
Rectifier TypeMercury Vapour
EnvelopeGlass
Base MaterialMetal/Ceramic
SectionsSingle

Filament / Heater

MaterialOxide Coated

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Three phase full wave19000 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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    Warm-up Time
    60s

    Absolute Maximum Ratings

    Plate Voltage20000 V
    Cathode Current2500 mA

    Audio Performance

    Key Features
    • Hot Cathode
    • Mercury Vapour
    • High Power
    • X-ray radiation warning