Tube-number record
6931
0 archive entries
6931 is a tube type in the TubeDatabase archive (class: Corona Discharge Regulator Tube). Recorded specifications: brand Philco, construction Other / special, base Short Intermediate Shell Octal, socket Octal, and maximum plate voltage 3150 V. The archive does not yet hold a photographed example of this type.
BrandPhilco
ClassCorona Discharge Regulator Tube
BaseOctal
Construction
Primary TypeOther / special
EnvelopeT9
Base MaterialShort Intermediate Shell Octal
SectionsSingle
Filament / Heater
Absolute Maximum Ratings
Plate Voltage3150 V
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Shunt Regulator | 3000 V | — | — | — | 0.275 mA |
Application Notes
Designed for operation as a shunt regulator or voltage reference tube. Used in high voltage supply of an Ionitron. Rate of voltage rise in the corona region should be limited to 4 or 5 volts per millisecond to prevent relaxation oscillations.
Datasheets
Datasheet: 6931.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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