Tube-number record
12DW8
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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
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
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Triode #1 (First Audio) | 12.6 V | 2700 | — | 9.5 | 1.9 mA |
| Triode #2 (Driver) | 12.6 V | 6500 | — | 6.4 | 7.5 mA |
Application Notes
The principal feature of the 12DW8 is its ability to operate with a 12 volt plate supply.
Datasheets
Datasheet: 12DW8.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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