Tube-number record
SR 4
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ClassVoltage Reference Tube
BaseFlexible / flying leads
Construction
Primary TypeDiode
EnvelopeSubminiature
Base MaterialGlass
Sections1
Filament / Heater
Absolute Maximum Ratings
Plate Voltage110 V
Cathode Current5 mA
Audio Performance
Key Features
- Cold molybdenum cathode
- Subminiature size
- Light-independent breakdown voltage
- Long life
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Stabilizing | 85 V | — | 200 | — | 1.5 mA |
Application Notes
Voltage reference tube. Coupling element in DC-amplifiers.
Datasheets
Datasheet: SR4.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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