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

Pre (2,630 tube types), Other (2,603 tube types), Power (1,292 tube types), Rectifier (816 tube types)
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7G7/1232 vacuum tube outline illustration

Tube-number record

7G7/1232

0 archive entries

7G7/1232 is a tube type in the TubeDatabase archive (class: Sharp cut-off pentode voltage amplifier). Recorded specifications: brand TUNG-SOL, year 1949, construction Pentode, base Lock-in, socket Loctal, maximum plate voltage 300 V, and maximum plate dissipation 1.5 W. The archive does not yet hold a photographed example of this type.

BrandTUNG-SOL
ClassSharp cut-off pentode voltage amplifier
BaseLoctal
Filament6.3 V @ 450 mA

Construction

Primary TypePentode
EnvelopeT-9
Base MaterialLock-in
SectionsSingle

Filament / Heater

Heater NotesAC or DC

Absolute Maximum Ratings

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Class A Amplifier250 V4500800000—6 mA

Application Notes

Designed for use in television or other high-frequency amplifiers where low gain may be compensated for by high transconductance.

Filters

0 tubes found

Manufacturers

Brands

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    Plate Voltage
    300 V
    Plate Dissipation1.5 W
    Grid 2 Voltage100 V
    H-C Voltage90 V

    Audio Performance

    Key Features
    • Sharp cut-off
    • Lock-in construction
    • High transconductance