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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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2HM5 vacuum tube outline illustration

Tube-number record

2HM5

0 archive entries

2HM5 is a tube type in the TubeDatabase archive (class: Sharp-Cutoff Triode). Recorded specifications: brand Westinghouse, year 1963, construction Triode, socket Miniature 7-pin (B7G), maximum plate voltage 200 V, and maximum plate dissipation 2.2 W. The archive does not yet hold a photographed example of this type.

BrandWestinghouse
ClassSharp-Cutoff Triode
BaseMiniature 7-pin (B7G)
Filament2.4 V @ 0.6 mA

Construction

Primary TypeTriode
EnvelopeT-5 1/2
Sections1

Filament / Heater

Warm-up Time11s
Heater NotesSeries connected heater with controlled warm-up

Absolute Maximum Ratings

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
RF Amplifier135 V14500—7012.5 mA

Filters

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Manufacturers

Brands

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    Plate Voltage200 V
    Plate Dissipation2.2 W
    Grid 1 Voltage-50 V
    Cathode Current20 mA
    H-C Voltage100 V

    Audio Performance

    Key Features
    • Sharp-cutoff
    • Controlled heater warm-up
    • VHF TV tuner service