Tube-number record
DL
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BrandMarconi
ClassLow Magnification Output Triode
Construction
Primary TypeTriode
Sections1
Filament / Heater
Absolute Maximum Ratings
Plate Voltage200 V
Plate Dissipation5 W
Audio Performance
Key Features
- Low impedance
- High conductance
- Low Magnification
- Small output valve
- Initial L.F. amplifier
- Oscillator
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Operating Data 1 | 100 V | — | — | — | 10.5 mA |
| Operating Data 2 | 150 V | — | — | — | 18 mA |
| Operating Data 3 | 200 V | — | — | — | 25 mA |
Application Notes
High conductance provides a considerable stage gain. Recommended where sensitivity is required without the use of a pentode. Output is sufficient for average domestic volume with a moving iron speaker.
Datasheets
Datasheet: DL.pdf
Download PDFLoading datasheet...
Datasheets courtesy of Frank Philipse via Frank's Electron Tube Data Sheets.
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