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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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AH 200 vacuum tube outline illustration

Tube-number record

AH 200

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AH 200 is a tube type in the TubeDatabase archive (class: Rectifier). Recorded specifications: brand Marconi's Wireless Telegraph Company Limited, construction Rectifier, base Not specified, socket Special / none, and maximum plate voltage 16000 V. The archive does not yet hold a photographed example of this type.

BrandMarconi's Wireless Telegraph Company Limited
ClassRectifier
BaseSpecial / none

Construction

Primary TypeRectifier
Rectifier TypeHalf-wave
EnvelopeHard glass bulb
Base MaterialNot specified
SectionsSingle

Filament / Heater

MaterialNot specified

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
3-phase half-wave7500 V———10000 mA
3-phase full-wave15000 V———10000 mA

Application Notes

Valve should be operated with air blast at 35-40°C. Ageing schedule of 1 hour at normal filament voltage required after transit. Screen against RF fields. Ambient temperature must be above 3°C.

Datasheets

Datasheet: AH200.pdf

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Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.

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    Warm-up Time
    2s

    Absolute Maximum Ratings

    Plate Voltage16000 V
    Cathode Current3500 mA

    Audio Performance

    Key Features
    • Domed anode
    • Shrouded cathode
    • Mercury-vapour type
    • Continuous or thermostatically switched air blast cooling