6FR7
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BrandSylvania
ClassDissimilar-section double triode
Base9-Pin Miniature
Filament6.3V @ 925mA
Construction
Primary TypeDouble Triode
EnvelopeT-9
SectionsDissimilar
Filament / Heater
Heater NotesParallel operation
Absolute Maximum Ratings
Plate Voltage330 V
Plate Dissipation10 W
Grid 1 Voltage-250 V
Cathode Current50 mA
H-C Voltage200 V
Audio Performance
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Section 1 - Oscillator | 250V | 1600 | 40000 | 68 | 1.4mA |
| Section 2 - Amplifier | 150V | 7200 | 750 | 5.4 | 50mA |
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