6G6G
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BrandSylvania
ClassPower Pentode
BaseSmall-octal 7-pin
Filament6.3V @ 150mA
Construction
Primary TypePentode
EnvelopeST-12
SectionsSingle
Filament / Heater
Heater Notes6.3 volts / 0.15 amperes
Absolute Maximum Ratings
Plate Voltage180 V
Plate Dissipation2.75 W
Grid 2 Voltage180 V
Audio Performance
Typical THD10%
Power Output1.1 W
Key Features
- Low heater current (150 mA)
- ST-12 Glass Envelope
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Pentode (135V) | 135V | 2100 | 170000 | 360 | 11.5mA |
| Pentode (180V) | 180V | 2300 | 175000 | 400 | 15mA |
| Triode (Grid 2 tied to plate) | 180V | 2000 | 4750 | 9.5 | - |
Application Notes
Recommended for power output stages where high efficiency is desired but high output power is not required. Not recommended for automotive service. Transformer or impedance coupling is recommended. Grid circuit resistance limit is 0.5 megohms for 135V or for 180V (auto-bias). Fixed bias at 180V requires grid resistance limit of 0.005 megohms.
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