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

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Tube-number record

GU 11

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BrandMarconi
ClassHot-cathode mercury-vapour rectifier

Construction

Primary TypeOther / special
Rectifier TypeMercury-vapour
EnvelopeHard glass bulb

Filament / Heater

Absolute Maximum Ratings

Plate Voltage16000 V
Cathode Current8000 mA

Audio Performance

Key Features
  • Domed anode
  • Shrouded cathode
  • Hard glass bulb
  • Suitable for operation up to 6A at 15kV

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
3-phase full-wave15000 V———6000 mA
3-phase half-wave7500 V———6000 mA

Application Notes

For most applications air blast is recommended on the base. Seasoning required after transit/storage: 2 hours at normal filament voltage without anode voltage. Pre-heating time varies by ambient temperature: 1 minute at 25°C up to 28 minutes at 7°C.

Datasheets

Datasheet: GU11.pdf

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

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