12DE8
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BrandTung-Sol
ClassDiode-Pentode
Base9-pin miniature
Filament12.6V @ 0.2mA
Construction
Primary TypeDiode-Pentode
EnvelopeGlass
Sections2
Filament / Heater
Heater NotesDesigned to operate over automotive battery range 10.0 to 15.9 volts
Absolute Maximum Ratings
Plate Voltage30 V
Grid 2 Voltage30 V
Cathode Current20 mA
H-C Voltage30 V
Audio Performance
Key Features
- Remote cut-off pentode
- Independent unipotential cathodes
- Miniature construction
- Low voltage automotive operation
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| RF or IF Amplifier | 12.6V | 1500 | 3000000 | - | 1.3mA |
Application Notes
The 12DE8 is intended for use as an RF or IF amplifier where heater, plate, and screen grid potentials are obtained directly from an automotive battery.
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