Tube-number record
GU 8
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BrandMarconi
ClassPower Rectifier
BaseSpecial / none
Construction
Primary TypeRectifier
Rectifier TypeMercury vapour
EnvelopeGlass
SectionsSingle
Filament / Heater
Warm-up Time60s
Absolute Maximum Ratings
Plate Voltage22000 V
Cathode Current4000 mA
Audio Performance
Key Features
- Directly heated
- Mercury vapour
- Half-wave rectifier
Application Notes
The valve must be mounted vertically with its anode cap uppermost. A time delay of at least one minute is required after switching on the filament before anode voltage is applied. For new or stored valves, seasoning of 30 minutes at normal filament voltage is required.
Datasheets
Datasheet: GU8.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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