Tube-number record
13D8
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13D8 is a tube type in the TubeDatabase archive (class: A.F. Double Triode). Recorded specifications: brand Brimar, construction Triode, socket Noval (B9A), maximum plate voltage 300 V, and maximum plate dissipation 2.75 W. The archive does not yet hold a photographed example of this type.
BrandBrimar
ClassA.F. Double Triode
BaseNoval (B9A)
Filament6.3 V @ 300 mA
Construction
Primary TypeTriode
Envelopeglass
Sectionsdouble
Filament / Heater
Heater NotesSeries or parallel connection
Absolute Maximum Ratings
Plate Voltage300 V
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Each Section | 250 V | 2200 | 7700 | 17 | 10.5 mA |
Application Notes
Resistance coupled amplifier operation shows stage gains of 11-12 at supply voltages of 100V-250V.
Datasheets
Datasheet: 13D8.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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