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

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ECL 84 vacuum tube outline illustration

Tube-number record

ECL 84

0 archive entries

ECL 84 is a tube type in the TubeDatabase archive (class: Triode-Pentode). Recorded specifications: brand PHILIPS, construction Multi-section, base NOVAL, socket Noval (B9A), maximum plate voltage 250 V, and maximum plate dissipation 4 W. The archive does not yet hold a photographed example of this type.

BrandPHILIPS
ClassTriode-Pentode
BaseNoval (B9A)
Filament6.3 V @ 720 mA

Construction

Primary TypeMulti-section
EnvelopeGlass
Base MaterialNOVAL
SectionsTriode, Pentode

Filament / Heater

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

Absolute Maximum Ratings

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Triode section200 V4000—653 mA
Pentode section170 V110001000003618 mA
Pentode section200 V104001300003618 mA

Application Notes

Pentode intended for video output; triode for sync and noise suppression circuits.

Datasheets

Datasheet: ECL84.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 Dissipation4 W
    Grid 2 Voltage250 V
    Cathode Current40 mA
    H-C Voltage200 V

    Audio Performance

    Key Features
    • Separate cathodes
    • Triode for keyed A.G.C.
    • Sync separation
    • Sync amplification
    • Noise suppression
    • Pentode as video output tube
    Pentode section220 V100001500003618 mA