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

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6JH8 vacuum tube outline illustration

Tube-number record

6JH8

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6JH8 is a tube type in the TubeDatabase archive (class: Sheet-Beam Tube). Recorded specifications: brand General Electric, construction Beam tetrode / beam power, socket Noval (B9A), maximum plate voltage 330 V, and maximum plate dissipation 3 W. The archive does not yet hold a photographed example of this type.

BrandGeneral Electric
ClassSheet-Beam Tube
BaseNoval (B9A)
Filament6.3 V @ 0.3 mA

Construction

Primary TypeBeam tetrode / beam power
EnvelopeT-6 1/4
Sections2

Filament / Heater

Heater NotesHeater voltage range +/- 10%

Absolute Maximum Ratings

Plate Voltage330 V

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Deflectors Grounded250 V4400——14 mA

Application Notes

Especially suited for service as a synchronous detector in color television receivers; also suitable for burst gate circuits.

Datasheets

Datasheet: 6JH8.pdf

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

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    Plate Dissipation3 W
    Grid 2 Voltage330 V
    Cathode Current33 mA

    Audio Performance

    Key Features
    • Balanced deflectors
    • Low oscillator injection power requirements
    • Freedom from space-charge coupling
    • Linear output voltages