Tube-number record
6SF7GT
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BrandAmalgamated Wireless Valve Co.
ClassDiode-super-control Amplifier Pentode
BaseOctal
Filament6.3 V @ 0.3 mA
Construction
Primary TypePentode
EnvelopeT9
Base MaterialSmall Wafer Octal 8-Pin
SectionsSingle-ended
Filament / Heater
Heater NotesCoated Unipotential Cathode
Absolute Maximum Ratings
Plate Voltage300 V
Plate Dissipation3.5 W
Grid 2 Voltage100 V
Audio Performance
Key Features
- Single-ended type
- Internal Shield
- Diode curves apply from type 6B7
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class A1 Amplifier (1) | 100 V | 1975 | 200000 | — | 12 mA |
| Class A1 Amplifier (2) | 200 V | 2050 | 700000 | — | 12.4 mA |
Datasheets
Datasheet: 6SF7GT.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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