Tube-number record
12DE8
0 archive entries
BrandTung-Sol
ClassDiode-Pentode
BaseNoval (B9A)
Filament12.6 V @ 0.2 mA
Construction
Primary TypeMulti-section
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 | 12.6 V | 1500 | 3000000 | — | 1.3 mA |
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.
0 results