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

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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

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Operating Data 1100 V———10.5 mA
Operating Data 2150 V———18 mA
Operating Data 3200 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

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

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    Characteristics100 V4500266012—