6FD7
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BrandPhilco
ClassDissimilar section double triode
Base9-pin miniature
Filament6.3V @ 925mA
Construction
Primary TypeDouble Triode
EnvelopeT-9
Base Materialintegral wafer base
Sections2 dissimilar sections
Filament / Heater
Heater NotesParallel operation
Absolute Maximum Ratings
Plate Voltage330 V
Plate Dissipation10 W
Cathode Current40 mA
H-C Voltage200 V
Audio Performance
Key Features
- T-9 bulb for increased heat dissipation safety margin
- Wafer base
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Section 1 - Oscillator | 250V | 1200 | 53000 | 64 | 1.1mA |
| Section 2 - Amplifier | 150V | 7500 | 800 | 6 | 40mA |
Application Notes
Intended for vertical deflection oscillator and amplifier applications in television receivers.
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