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

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6X8 vacuum tube outline illustration

Tube-number record

6X8

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6X8 is a tube type in the TubeDatabase archive (class: Triode-Pentode). Recorded specifications: brand General Electric, construction Multi-section, base Glass, socket Noval (B9A), maximum plate voltage 250 V, and maximum plate dissipation 2 W. The archive does not yet hold a photographed example of this type.

BrandGeneral Electric
ClassTriode-Pentode
BaseNoval (B9A)
Filament6.3 V @ 450 mA

Construction

Primary TypeMulti-section
EnvelopeT-6 1/2
Base MaterialGlass
Sections2

Filament / Heater

Heater NotesAC or DC

Absolute Maximum Ratings

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Pentode Section (Mixer)250 V4600750000—7.7 mA
Triode Section (Oscillator)100 V58006900408.5 mA

Datasheets

Datasheet: 6X8.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 Voltage
    250 V
    Plate Dissipation2 W
    Grid 2 Voltage250 V
    Grid 1 Voltage-40 V
    H-C Voltage100 V

    Audio Performance

    Power Output0.5 W
    Key Features
    • Medium-mu triode
    • Sharp-cutoff pentode
    • Designed for VHF converter applications