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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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20LP4 vacuum tube outline illustration

Tube-number record

20LP4

0 archive entries

20LP4 is a tube type in the TubeDatabase archive (class: Cathode Ray Tube). Recorded specifications: brand Tung-Sol, year 1954, construction Rectangular Glass, base Plastic, socket Duodecal, and maximum plate voltage 16000 V. The archive does not yet hold a photographed example of this type.

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

Construction

Primary TypeRectangular Glass
EnvelopeGlass
Base MaterialPlastic
SectionsSingle

Filament / Heater

Heater NotesUnipotential Cathode

Absolute Maximum Ratings

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Typical Operation14000 V————

Application Notes

At voltages in excess of 16,000 volts, X-ray radiation shielding may be necessary.

Filters

0 tubes found

Manufacturers

Brands

    0 results
    Plate Voltage16000 V
    Grid 2 Voltage500 V
    Grid 1 Voltage125 V
    H-C Voltage180 V

    Audio Performance

    Key Features
    • Magnetic Deflection
    • Unipotential Cathode
    • Grey Filter Faceplate
    • Rectangular Glass Construction
    • Low Voltage Electrostatic Focus
    • External Conductive Coating
    • External Single Field 10-degree Trap