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

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6BH8 vacuum tube outline illustration

Tube-number record

6BH8

0 archive entries

6BH8 is a tube type in the TubeDatabase archive (class: Triode-Pentode). Recorded specifications: brand General Electric, construction Pentode, base Glass, socket Noval (B9A), maximum plate voltage 300 V, and maximum plate dissipation 3 W. The archive does not yet hold a photographed example of this type.

BrandGeneral Electric
ClassTriode-Pentode
BaseNoval (B9A)
Filament6.3 V @ 600 mA

Construction

Primary TypePentode
EnvelopeT-6 1/2
Base MaterialGlass
Sections2

Filament / Heater

Warm-up Time11s
Heater NotesControlled heater warm-up characteristic for series-connected heaters.

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Pentode Section (Class A Amplifier)200 V7000150000—15 mA
Triode Section (Class A Amplifier)150 V33005150179.5 mA

Application Notes

The triode section of the 6BH8 incorporates a lower amplification factor than the 6AU8 triode section and consequently may be used in applications where the lower amplification factor is desired. Suitable for monochrome and color television receivers.

Datasheets

Datasheet: 6BH8.pdf

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

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    Absolute Maximum Ratings

    Plate Voltage300 V
    Plate Dissipation3 W
    Grid 2 Voltage300 V
    H-C Voltage200 V

    Audio Performance

    Key Features
    • Controlled heater warm-up characteristic
    • High figure of merit pentode
    • Suitable for video amplifier and IF service
    • Triode can be used as diode for video detector