Tube-number record
6391
0 archive entries
6391 is a tube type in the TubeDatabase archive (class: Voltage amplifying pentode). Recorded specifications: brand Mullard, construction Pentode, socket Subminiature, maximum plate voltage 175 V, and maximum plate dissipation 1 W. The archive does not yet hold a photographed example of this type.
BrandMullard
ClassVoltage amplifying pentode
BaseSubminiature
Filament6.3 V @ 200 mA
Construction
Primary TypePentode
EnvelopeGlass T-3
Filament / Heater
Heater NotesTo reduce the possibility of hum the heater should be operated from D.C.
Absolute Maximum Ratings
Plate Voltage175 V
Plate Dissipation1 W
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Typical | 100 V | 3000 | 180000 | — | 7 mA |
Datasheets
Datasheet: 6391.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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