Tube-number record
12SR7GT
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BrandTUNG-SOL
ClassDUO-DIODE TRIODE
BaseOctal
Filament12.6 V @ 150 mA
Construction
Primary TypeMulti-section
EnvelopeT-9 GLASS
Filament / Heater
Absolute Maximum Ratings
Plate Voltage250 V
Plate Dissipation2.45 W
Audio Performance
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| CLASS A1 AMPLIFIER - TRIODE SECTION | 250 V | 1900 | 8500 | 16 | 9.5 mA |
Application Notes
THE D-C RESISTANCE IN THE GRID CIRCUIT SHOULD NOT EXCEED 1.0 MEGOHM UNDER RATED MAXIMUM CONDITIONS.
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