Tube-number record
13D3
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BrandBRIMAR
ClassDouble Triode
BaseNoval (B9A)
Filament6.3 V @ 0.6 mA
Construction
Primary TypeOther / special
EnvelopeGlass
SectionsDouble
Filament / Heater
Heater NotesIndirectly heated
Absolute Maximum Ratings
Plate Voltage300 V
Plate Dissipation5 W
Grid 1 Voltage-75 V
Cathode Current35 mA
Audio Performance
Typical THD11.5%
Power Output6.7 W
Key Features
- Rigid structure to reduce microphony
- Stable characteristics
- Suitable as D.C. amplifier
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Typical Operation 1 | 100 V | 2050 | 16500 | 32.5 | 3.5 mA |
| Typical Operation 2 | 250 V | 2300 | 14000 | 32 | 5 mA |
| Push-Pull Zero Bias Class B | 250 V | — | — | — | 3.9 mA |
Application Notes
Particularly suitable as a D.C. amplifier due to its stable characteristics.
Datasheets
Datasheet: 13D3.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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