12FS7GT
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BrandARCTURUS
ClassHigh-Mu Triode
BaseOctal
Filament12.5V @ 150mA
Construction
Primary TypeTriode
EnvelopeGT
SectionsSingle
Filament / Heater
Absolute Maximum Ratings
Audio Performance
Key Features
- Designed for series heater operation
- GT envelope
- Low heater power requirements
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class A Amplifier | 100V | 1520 | 50000 | 76 | 1.8mA |
| Class A Amplifier | 250V | 1500 | 66000 | 100 | 1.5mA |
Application Notes
Type 12FS7GT is designed primarily for series heater operation in AC-DC receivers. Eliminates the need for plug-in resistors or line cords through use of a small resistance in series with heaters.
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