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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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7V7/1204 vacuum tube outline illustration

Tube-number record

7V7/1204

0 archive entries

7V7/1204 is a tube type in the TubeDatabase archive (class: Sharp Cut-off High Frequency RF Pentode). Recorded specifications: brand Tung-Sol, year 1946, construction Pentode, socket Loctal, maximum plate voltage 300 V, and maximum plate dissipation 1.2 W. The archive does not yet hold a photographed example of this type.

BrandTung-Sol
ClassSharp Cut-off High Frequency RF Pentode
BaseLoctal
Filament6.3 V @ 150 mA

Construction

Primary TypePentode
EnvelopeShort T-9
Sections1

Filament / Heater

Heater NotesNominal rating 7.0V/0.160A; Typical operation at 6.3V/0.150A

Absolute Maximum Ratings

Plate Voltage300 V

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Pentode250 V1800500000—4 mA

Application Notes

Used for high frequency RF amplification. Coated unipotential cathode.

Filters

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Manufacturers

Brands

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    Plate Dissipation1.2 W
    Grid 2 Voltage100 V

    Audio Performance

    Key Features
    • Sharp Cut-off
    • High Frequency RF Pentode