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

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DL94 vacuum tube outline illustration

Tube-number record

DL94

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DL94 is a tube type in the TubeDatabase archive (class: Output Pentode). Recorded specifications: brand Mullard, construction Pentode, socket Miniature 7-pin (B7G), maximum plate voltage 90 V, and maximum plate dissipation 1 W. The archive does not yet hold a photographed example of this type.

BrandMullard
ClassOutput Pentode
BaseMiniature 7-pin (B7G)

Construction

Primary TypePentode
EnvelopeMiniature Glass
Sections1

Filament / Heater

MaterialDirectly Heated

Absolute Maximum Ratings

Plate Voltage90 V

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Class A Series Filament90 V20001200007.57.7 mA
Class A Parallel Filament90 V21501400007.59.5 mA

Application Notes

Designed for operation with equal voltages on anode and screen-grid. Suitable for D.C. operation only.

Datasheets

Datasheet: DL94.pdf

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

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    Plate Dissipation1 W
    Grid 2 Voltage90 V
    Cathode Current12 mA

    Audio Performance

    Typical THD7%
    Power Output0.27 W
    Key Features
    • Centre-tapped filament
    • Battery operated equipment design
    • Miniature B7G base