6AK8
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BrandPHILIPS
ClassTriple Diode Triode
BaseNoval (B9A)
Filament6.3V @ 450mA
Construction
Primary TypeMulti-section
EnvelopeGlass
Base MaterialGlass
Sections4
Filament / Heater
Heater NotesParallel heater supply
Absolute Maximum Ratings
Grid 1 Voltage-1.3 V
H-C Voltage150 V
Audio Performance
Power Output0.05 W
Key Features
- Triple diode
- Triode for detection and amplification
- Internal shield
- Coated unipotential cathode
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Triode Section | 100V | 1300 | 54000 | 70 | 0.8mA |
| Triode Section | 250V | 1200 | 58000 | 70 | 1mA |
Application Notes
Specifically designed for FM or AM/FM broadcast receivers and TV video/audio signal detection.
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