Tube-number record
12FR8
0 archive entries
12FR8 is a tube type in the TubeDatabase archive (class: Diode-Triode-Pentode). Recorded specifications: brand General Electric, construction Multi-section, base Small Button 9-Pin, socket Noval (B9A), and maximum plate voltage 16 V. The archive does not yet hold a photographed example of this type.
BrandGeneral Electric
ClassDiode-Triode-Pentode
BaseNoval (B9A)
Filament12.6 V @ 320 mA
Construction
Primary TypeMulti-section
EnvelopeT-6 1/2 Glass
Base MaterialSmall Button 9-Pin
SectionsTriode, Pentode, Diode
Filament / Heater
Heater NotesIntended for operation from 12V storage battery; heater voltage range 10.0V to 15.9V.
Absolute Maximum Ratings
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Pentode Section | 12.6 V | 2700 | 400000 | — | 1.9 mA |
| Triode Section | 12.6 V | 1200 | — | 10 | 1 mA |
Datasheets
Datasheet: 12FR8.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
0 results