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

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6928 vacuum tube outline illustration

Tube-number record

6928

0 archive entries

6928 is a tube type in the TubeDatabase archive (class: Power Amplifier Pentode). Recorded specifications: construction Pentode, socket Miniature 7-pin (B7G), maximum plate voltage 220 V, and maximum plate dissipation 9 W. The archive does not yet hold a photographed example of this type.

ClassPower Amplifier Pentode
BaseMiniature 7-pin (B7G)
Filament6.3 V @ 360 mA

Construction

Primary TypePentode
EnvelopeT 5 1/2
SectionsSingle

Filament / Heater

Heater NotesIndirectly heated

Absolute Maximum Ratings

Plate Voltage220 V

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Class A130 V3400800001023 mA
Class A180 V3900800001032.5 mA

Application Notes

For medium power applications where very long life and low failure rate is desired.

Datasheets

Datasheet: 6928.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 Dissipation9 W
    Grid 2 Voltage220 V
    Grid 1 Voltage-55 V
    Cathode Current55 mA
    H-C Voltage100 V

    Audio Performance

    Power Output2.1 W
    Key Features
    • Long life
    • Low failure rate
    • Dependable service