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

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6679/12AT7 vacuum tube outline illustration

Tube-number record

6679/12AT7

0 archive entries

6679/12AT7 is a tube type in the TubeDatabase archive (class: High-mu Duo Triode). Recorded specifications: brand Sylvania, construction Triode, socket Noval (B9A), maximum plate voltage 330 V, and maximum plate dissipation 2.8 W. The archive does not yet hold a photographed example of this type.

BrandSylvania
ClassHigh-mu Duo Triode
BaseNoval (B9A)
Filament12.6 V @ 150 mA

Construction

Primary TypeTriode
EnvelopeT-6 1/2
Sections2

Filament / Heater

Heater NotesSeries/Parallel

Absolute Maximum Ratings

Plate Voltage330 V

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Class A1 Amplifier100 V400015000603.7 mA
Class A1 Amplifier250 V5500109006010 mA

Application Notes

Designed specifically for use in mobile communications equipment. Intended for use as a grounded grid amplifier or frequency converter at frequencies below 300 Mc.

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    Plate Dissipation
    2.8 W
    Grid 1 Voltage-55 V
    H-C Voltage100 V

    Audio Performance

    Key Features
    • Mobile communications design
    • Withstands high on-off cycling
    • Operation under normal automotive supply variations
    • T-6 1/2 envelope