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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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2T4 vacuum tube outline illustration

Tube-number record

2T4

0 archive entries

2T4 is a tube type in the TubeDatabase archive (class: Triode). Recorded specifications: brand Tung-Sol, year 1954, construction Triode, base Button Base, socket Miniature 7-pin (B7G), maximum plate voltage 200 V, and maximum plate dissipation 4.5 W. The archive does not yet hold a photographed example of this type.

BrandTung-Sol
ClassTriode
BaseMiniature 7-pin (B7G)
Filament2.35 V @ 0.6 mA

Construction

Primary TypeTriode
EnvelopeGlass
Base MaterialButton Base
SectionsSingle

Filament / Heater

Warm-up Time11s
Heater NotesThermal characteristics of the heater are controlled for series heater strings.

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Typical Operation80 V700018601418 mA
Oscillator at 950 MC80 V———18 mA

Application Notes

Designed for use as an oscillator in UHF, 600 MA series heater operated television receivers.

Filters

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Manufacturers

Brands

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    Absolute Maximum Ratings

    Plate Voltage200 V
    Plate Dissipation4.5 W
    Cathode Current30 mA
    H-C Voltage50 V

    Audio Performance

    Key Features
    • Low-Mu Triode
    • UHF Oscillator
    • Controlled Heater Warm-up