Tube-number record
ESU.400
0 archive entries
ESU.400 is a tube type in the TubeDatabase archive (class: HALF-WAVE MERCURY VAPOUR RECTIFIER). Recorded specifications: brand EDISWAN, year 1948, construction Mercury Vapour, socket Jumbo, and maximum plate voltage 14000 V. The archive does not yet hold a photographed example of this type.
BrandEDISWAN
ClassHALF-WAVE MERCURY VAPOUR RECTIFIER
BaseJumbo
Construction
Primary TypeMercury Vapour
Rectifier TypeHalf-wave
EnvelopeGlass
Sections1
Filament / Heater
Warm-up Time60s
Absolute Maximum Ratings
Plate Voltage14000 V
Cathode Current6000 mA
Audio Performance
Key Features
- Vertical mounting
- Jumbo base
Application Notes
When the rectifier is first placed into service, the filament should be operated at Normal Voltage for 15 minutes without the anode voltage. This will enable the mercury anode to be correctly distributed.
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