6SG7
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BrandGeneral Electric
ClassPentode
BaseOctal
Filament6.3V @ 0.3mA
Construction
Primary TypePentode
EnvelopeMT-8 Metal Shell
Base MaterialOctal 8-Pin Small Wafer
SectionsSingle
Filament / Heater
Heater NotesA-C or D-C
Absolute Maximum Ratings
Plate Voltage300 V
Plate Dissipation3 W
Grid 2 Voltage150 V
H-C Voltage90 V
Audio Performance
Key Features
- High transconductance
- Low grid-plate capacitance
- Dual cathode connection
- Remote-cutoff
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class A1 Amplifier | 100V | 4100 | 250000 | - | 8.2mA |
| Class A1 Amplifier | 250V | 4700 | 900000 | - | 11.8mA |
| Class A1 Amplifier | 250V | 4000 | 1000000 | - | 9.2mA |
Application Notes
Designed for use as a high-gain radio- or intermediate-frequency amplifier. Dual cathode connection reduces undesired coupling between cathode circuits.
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