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

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HL 94 vacuum tube outline illustration

Tube-number record

HL 94

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HL 94 is a tube type in the TubeDatabase archive (class: Output Pentode). Recorded specifications: brand Philips, construction Pentode, socket Miniature 7-pin (B7G), maximum plate voltage 150 V, and maximum plate dissipation 7.5 W. The archive does not yet hold a photographed example of this type.

BrandPhilips
ClassOutput Pentode
BaseMiniature 7-pin (B7G)
Filament30 V @ 150 mA

Construction

Primary TypePentode
EnvelopeGlass
SectionsSingle

Filament / Heater

Heater NotesIndirect heating, A.C. or D.C. series supply

Absolute Maximum Ratings

Plate Voltage150 V

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Class A100 V9200220007.843 mA

Application Notes

Designed for use in receivers for low mains voltages.

Datasheets

Datasheet: HL94.pdf

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

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Brands

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    Plate Dissipation7.5 W
    Grid 2 Voltage150 V
    Cathode Current100 mA
    H-C Voltage150 V

    Audio Performance

    Typical THD10%
    Power Output1.9 W
    Key Features
    • Indirectly heated
    • Series supply
    • Low mains voltage operation