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

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12DW8 vacuum tube outline illustration

Tube-number record

12DW8

0 archive entries

12DW8 is a tube type in the TubeDatabase archive (class: Diode, Dissimilar Duo-Triode). Recorded specifications: construction Triode, socket Noval (B9A), maximum plate voltage 16 V, and maximum plate dissipation 0.5 W. The archive does not yet hold a photographed example of this type.

ClassDiode, Dissimilar Duo-Triode
BaseNoval (B9A)
Filament12.6 V @ 450 mA

Construction

Primary TypeTriode
Rectifier Typedetector
EnvelopeT-5 1/2
Sections3

Filament / Heater

Heater NotesDesigned for 12 volt hybrid automobile radios

Absolute Maximum Ratings

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Triode #1 (First Audio)12.6 V2700—9.51.9 mA
Triode #2 (Driver)12.6 V6500—6.47.5 mA

Application Notes

The principal feature of the 12DW8 is its ability to operate with a 12 volt plate supply.

Datasheets

Datasheet: 12DW8.pdf

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Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.

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    Plate Voltage16 V
    Plate Dissipation0.5 W
    H-C Voltage16 V

    Audio Performance

    Key Features
    • Low voltage operation
    • Combined second detector
    • Transistor driver stage
    • Designed for 12V hybrid auto radios