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Tube Database (7,341 tube types · 1,270 archive entries)

Pre (2,630 tube types), Other (2,603 tube types), Power (1,292 tube types), Rectifier (816 tube types)
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12DE8 vacuum tube outline illustration

Tube-number record

12DE8

0 archive entries

12DE8 is a tube type in the TubeDatabase archive (class: Diode-Pentode). Recorded specifications: brand Tung-Sol, year 1957, construction Multi-section, socket Noval (B9A), and maximum plate voltage 30 V. The archive does not yet hold a photographed example of this type.

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

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
RF or IF Amplifier12.6 V15003000000—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.

Filters

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Manufacturers

Brands

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    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