6R8
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BrandTUNG-SOL
ClassTriple-Diode Triode
Base9 Pin Miniature
Filament6.3V @ 450mA
Construction
Primary TypeTriple-Diode Triode
EnvelopeGlass
Sections4
Filament / Heater
Heater NotesAC or DC
Absolute Maximum Ratings
Plate Voltage250 V
Plate Dissipation2.5 W
H-C Voltage90 V
Audio Performance
Power Output0.3 W
Key Features
- Coated Unipotential Cathode
- AM/FM Detector
- AF Amplifier
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Class A1 Amplifier - Triode | 250V | 1900 | 8500 | 16 | 9.5mA |
Application Notes
The 6R8 is a triple-diode low-mu triode using the 9 pin miniature construction. It is designed for service as a combined AM/FM detector and AF amplifier.
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