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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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Tube-number record

20UP4

0 archive entries

20UP4 is a tube type in the TubeDatabase archive (class: Cathode Ray Picture Tube). Recorded specifications: brand Tung-Sol, year 1954, construction Display / CRT, base Glass, socket Duodecal, and maximum plate voltage 18000 V. The archive does not yet hold a photographed example of this type.

BrandTung-Sol
ClassCathode Ray Picture Tube
BaseDuodecal
Filament6.3 V @ 600 mA

Construction

Primary TypeDisplay / CRT
EnvelopeRectangular Glass
Base MaterialGlass
SectionsSingle

Filament / Heater

Heater NotesUnipotential Cathode

Absolute Maximum Ratings

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Television Application12000 V————

Application Notes

Direct-view picture tube designed for use in television applications. Features a rectangular glass construction and unipotential cathode.

Filters

0 tubes found

Manufacturers

Brands

    0 results
    Plate Voltage18000 V
    Grid 2 Voltage500 V
    H-C Voltage180 V

    Audio Performance

    Key Features
    • Electrostatic focus
    • Magnetic deflection
    • Grey filter faceplate
    • External conductive coating
    • Single field ion trap