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

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EL82 vacuum tube outline illustration

Tube-number record

EL82

0 archive entries

EL82 is a tube type in the TubeDatabase archive (class: Pentode). Recorded specifications: brand Philips, construction Pentode, base Glass, socket Noval (B9A), maximum plate voltage 250 V, and maximum plate dissipation 9 W. The archive does not yet hold a photographed example of this type.

BrandPhilips
ClassPentode
BaseNoval (B9A)
Filament6.3 V @ 800 mA

Construction

Primary TypePentode
EnvelopeGlass
Base MaterialGlass
Sections1

Filament / Heater

Heater NotesIndirect by A.C. or D.C.; parallel supply

Absolute Maximum Ratings

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Class A sound output170 V9000200001053 mA
Class A sound output200 V7600240001045 mA
Push-pull (two tubes)170 V———46 mA

Application Notes

To allow for tube spread and deterioration in frame output application, design for peak anode current not exceeding 90mA at Va=50V or 120mA at Va=60V. When used as frame output tube with Wa <= 4.5W, max plate voltage is 450V.

Datasheets

Datasheet: EL82.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 Voltage250 V
    Plate Dissipation9 W
    Grid 2 Voltage250 V
    Grid 1 Voltage-1.3 V
    Cathode Current75 mA
    H-C Voltage100 V

    Audio Performance

    Typical THD10%
    Power Output4.2 W
    Key Features
    • Indirectly heated
    • Frame output pentode
    • Sound output pentode
    Push-pull (two tubes)200 V———45 mA