TubeDatabase
  • Tubes
  • Testers
  • Companies
  • Submit
  • About

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)
DisclaimerA–Z indexSubmit a tube
21AMP23A vacuum tube outline illustration

Tube-number record

21AMP23A

0 archive entries

21AMP23A is a tube type in the TubeDatabase archive (class: Cathode Ray Tube). Recorded specifications: brand National Video Corporation, year 1954, construction Magnetic focus and magnetic deflection, base Glass, socket Special / none, and maximum plate voltage 18000 V. The archive does not yet hold a photographed example of this type.

BrandNational Video Corporation
ClassCathode Ray Tube
BaseSpecial / none
Filament6.3 V @ 0.5 mA

Construction

Primary TypeMagnetic focus and magnetic deflection
EnvelopeGlass rectangular bulb
Base MaterialGlass
SectionsSingle

Filament / Heater

Heater NotesIndirectly heated cathode

Absolute Maximum Ratings

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
Standard Picture Tube Operation16000 V————

Application Notes

Shielding of x-ray radiation may be necessary if anode is operated in excess of 16 kilovolts.

Filters

0 tubes found

Manufacturers

Brands

    0 results
    Plate Voltage18000 V
    Grid 2 Voltage500 V
    Grid 1 Voltage-125 V
    H-C Voltage180 V

    Audio Performance

    Key Features
    • Magnetic focus
    • Magnetic deflection
    • 90 degree deflection
    • Metal-backed screen
    • External conductive coating
    • Ion-trap magnet required