Tube-number record
ESU115
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BrandEDISWAN
ClassHalf-Wave Mercury Vapour Rectifier
Base4-pin
Construction
Primary TypeRectifier
Rectifier TypeHalf-wave
EnvelopeClear
SectionsSingle
Filament / Heater
MaterialDirectly heated
Warm-up Time60s
Absolute Maximum Ratings
Cathode Current250 mA
Audio Performance
Key Features
- Directly heated
- High voltage
- Mercury vapour
- Radio relay amplifiers
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Biphase Half Wave (two valves) | 2000 V | — | — | — | 500 mA |
Application Notes
The H.T. supply to the anode should not be switched on until the specified filament heating time has elapsed. When newly installed or after a period of disuse the filament should be run at normal temperature for 15 minutes before the application of the H.T. voltage.
Datasheets
Datasheet: ESU115.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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