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

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ECH 83 vacuum tube outline illustration

Tube-number record

ECH 83

0 archive entries

ECH 83 is a tube type in the TubeDatabase archive (class: Triode-Heptode). Recorded specifications: brand Philips, construction Multi-section, socket Noval (B9A), maximum plate voltage 250 V, and maximum plate dissipation 0.8 W. The archive does not yet hold a photographed example of this type.

BrandPhilips
ClassTriode-Heptode
BaseNoval (B9A)
Filament6.3 V @ 300 mA

Construction

Primary TypeMulti-section
EnvelopeGlass
SectionsTriode-Heptode

Filament / Heater

Heater NotesIndirect heating; suitable for series or parallel supply

Absolute Maximum Ratings

Plate Voltage250 V

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Heptode Mixer (Car Radio)25 V450500000—0.55 mA
Heptode RF/IF Amplifier25 V1500200000—1.25 mA
Triode Section Typical25 V2200—202 mA

Application Notes

Primarily intended for use as a mixer in car-radio sets. The tube can be directly operated from a 6V or 12V storage battery.

Datasheets

Datasheet: ECH83.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 Dissipation0.8 W
    Grid 1 Voltage-50 V
    Cathode Current6.5 mA
    H-C Voltage150 V

    Audio Performance

    Key Features
    • Low voltage operation (6V/12V)
    • Intended for car radio sets
    • Noval base
    Heptode Mixer (12.6V Supply)12.6 V2201500000—0.17 mA