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

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EBF80 vacuum tube outline illustration

Tube-number record

EBF80

0 archive entries

EBF80 is a tube type in the TubeDatabase archive (class: Duodiode-Pentode). Recorded specifications: brand Philips, construction Other / special, socket Noval (B9A), maximum plate voltage 300 V, and maximum plate dissipation 1.5 W. The archive does not yet hold a photographed example of this type.

BrandPhilips
ClassDuodiode-Pentode
BaseNoval (B9A)
Filament6.3 V @ 300 mA

Construction

Primary TypeOther / special
EnvelopeGlass
SectionsDuodiode-Pentode

Filament / Heater

Heater NotesIndirectly heated by A.C. or D.C.; parallel or series supply

Absolute Maximum Ratings

Plate Voltage300 V

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
R.F. or I.F. amplifier250 V22001440000185 mA

Application Notes

Valve can be used without special precautions against microphonic effect in circuits where input voltage Vi >= 25 mV for 50 mW output.

Datasheets

Datasheet: EBF80.pdf

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

Filters

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Manufacturers

Brands

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    Plate Dissipation1.5 W
    Grid 2 Voltage300 V
    Grid 1 Voltage-1.3 V
    Cathode Current10 mA
    H-C Voltage100 V

    Audio Performance

    Key Features
    • Variable mutual conductance
    • Noval base
    • Microphony-resistant design