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

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EC53 vacuum tube outline illustration

Tube-number record

EC53

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EC53 is a tube type in the TubeDatabase archive (class: Triode). Recorded specifications: brand Mullard, construction Triode, socket Miniature 7-pin (B7G), maximum plate voltage 250 V, and maximum plate dissipation 2.5 W. The archive does not yet hold a photographed example of this type.

BrandMullard
ClassTriode
BaseMiniature 7-pin (B7G)
Filament6.3 V @ 250 mA

Construction

Primary TypeTriode
EnvelopeMiniature glass
SectionsSingle

Filament / Heater

Heater NotesIndirectly heated

Absolute Maximum Ratings

Plate Voltage250 V

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Characteristics200 V290011400337.5 mA
Oscillator at 400 Mc/s200 V———12.5 mA

Application Notes

The input power is reduced at the higher frequencies in order to keep within the rated maximum anode dissipation.

Datasheets

Datasheet: EC53.pdf

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

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Manufacturers

Brands

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    Plate Dissipation2.5 W
    Grid 1 Voltage-1.5 V
    Cathode Current20 mA
    H-C Voltage40 V

    Audio Performance

    Key Features
    • Ultra short wave triode
    • Low power oscillator
    • Miniature construction