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

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6SK7 vacuum tube outline illustration

Tube-number record

6SK7

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6SK7 is a tube type in the TubeDatabase archive (class: Pentode). Recorded specifications: brand General Electric, construction Pentode, socket Octal, maximum plate voltage 300 V, and maximum plate dissipation 4 W. The archive does not yet hold a photographed example of this type.

BrandGeneral Electric
ClassPentode
BaseOctal
Filament6.3 V @ 0.3 mA

Construction

Primary TypePentode
EnvelopeMT-8 Metal Shell
SectionsSingle

Filament / Heater

Heater NotesA-C or D-C

Absolute Maximum Ratings

Plate Voltage300 V

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Class A Amplifier100 V2350120000—13 mA
Class A Amplifier250 V2000800000—9.2 mA

Application Notes

Suitable for use in receivers which employ automatic-volume-control.

Datasheets

Datasheet: 6SK7.pdf

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

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Manufacturers

Brands

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    Plate Dissipation4 W
    Grid 2 Voltage300 V
    H-C Voltage90 V

    Audio Performance

    Key Features
    • Remote-cutoff characteristic
    • Metal Shell
    • High-gain radio-frequency amplifier
    • Modulation-distortion reduction