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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

21AWP4A

0 archive entries

21AWP4A is a tube type in the TubeDatabase archive (class: Picture Tube). Recorded specifications: brand RCA, year 1965, construction Rectangular Glass, base Small-Shell, socket Duodecal, and maximum plate voltage 20000 V. The archive does not yet hold a photographed example of this type.

BrandRCA
ClassPicture Tube
BaseDuodecal
Filament6.3 V @ 600 mA

Construction

Primary TypeRectangular Glass
EnvelopeGlass
Base MaterialSmall-Shell
SectionsSingle

Filament / Heater

MaterialP4-Sulfide Type, Aluminized
Warm-up Time11s

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Cathode-Drive Service18000 V————

Application Notes

Surface of protective window treated to reduce specular reflection. Grid No. 1 circuit resistance 1.5 max megohms.

Filters

0 tubes found

Manufacturers

Brands

    0 results
    Heater Notes
    Tolerance ± 30 mA

    Absolute Maximum Ratings

    Plate Voltage20000 V
    Grid 2 Voltage550 V
    Grid 1 Voltage-155 V
    H-C Voltage200 V

    Audio Performance

    Key Features
    • No ion-trap magnet required
    • Aluminized screen
    • Magnetic focus
    • 72° Magnetic deflection
    • Filterglass faceplate
    • Rectangular glass type