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

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6SG7 vacuum tube outline illustration

Tube-number record

6SG7

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6SG7 is a tube type in the TubeDatabase archive (class: Pentode). Recorded specifications: brand General Electric, construction Pentode, base Octal 8-Pin Small Wafer, socket Octal, 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
ClassPentode
BaseOctal
Filament6.3 V @ 0.3 mA

Construction

Primary TypePentode
EnvelopeMT-8 Metal Shell
Base MaterialOctal 8-Pin Small Wafer
SectionsSingle

Filament / Heater

Heater NotesA-C or D-C

Absolute Maximum Ratings

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Class A1 Amplifier100 V4100250000—8.2 mA
Class A1 Amplifier250 V4700900000—11.8 mA
Class A1 Amplifier250 V40001000000—9.2 mA

Application Notes

Designed for use as a high-gain radio- or intermediate-frequency amplifier. Dual cathode connection reduces undesired coupling between cathode circuits.

Datasheets

Datasheet: 6SG7.pdf

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

Filters

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Manufacturers

Brands

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    Plate Voltage300 V
    Plate Dissipation3 W
    Grid 2 Voltage150 V
    H-C Voltage90 V

    Audio Performance

    Key Features
    • High transconductance
    • Low grid-plate capacitance
    • Dual cathode connection
    • Remote-cutoff