Tube-number record
12G4
0 archive entries
12G4 is a tube type in the TubeDatabase archive (class: Medium Mu Triode). Recorded specifications: brand SYLVANIA, construction Triode, socket Miniature 7-pin (B7G), maximum plate voltage 300 V, and maximum plate dissipation 2.5 W. The archive does not yet hold a photographed example of this type.
BrandSYLVANIA
ClassMedium Mu Triode
BaseMiniature 7-pin (B7G)
Filament12.6 V @ 150 mA
Construction
Primary TypeTriode
EnvelopeT-5 1/2
SectionsSingle
Filament / Heater
Absolute Maximum Ratings
Plate Voltage300 V
Plate Dissipation2.5 W
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Condition 1 | 90 V | 3000 | 6700 | 20 | 10 mA |
| Condition 2 | 250 V | 2600 | 7700 | 20 | 9 mA |
Datasheets
Datasheet: 12G4.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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