6SC7 / 12SC7
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BrandGeneral Electric
ClassHigh-mu Twin Triode
BaseOctal
Filament6.3V @ 0.3mA
Construction
Primary TypeTriode
EnvelopeMT-8 Metal Shell
Base MaterialSmall Wafer Octal 8-Pin
Sections2
Filament / Heater
Heater NotesCoated Unipotential Cathode
Absolute Maximum Ratings
Plate Voltage250 V
H-C Voltage90 V
Audio Performance
Typical THD5%
Key Features
- Special shielding arrangement to reduce hum
- Well suited for low-level audio amplifier service
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class A Amplifier | 250V | 1325 | 53000 | 70 | 2mA |
Application Notes
The 6SC7 is a high-mu twin triode designed primarily for use as an AF voltage amplifier. Except for heater ratings, the 12SC7 is identical to the 6SC7.
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