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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

21FPLC

0 archive entries

21FPLC is a tube type in the TubeDatabase archive (class: Cathode Ray Tube). Recorded specifications: brand National Video Corporation, year 1953, construction Display / CRT, 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 @ — mA

Construction

Primary TypeDisplay / CRT
EnvelopeGlass, rectangular
Sections1

Filament / Heater

Heater NotesLow voltage electrostatic focus and direct view picture tube.

Absolute Maximum Ratings

Plate Voltage18000 V

Typical Operation

ModePlate VGm (µmhos)Rp (Ω)µPlate mA
CRT Display14600 V———0.1 mA

Application Notes

Shielding of X-radiation may be necessary if anode voltage exceeds 16 kV.

Filters

0 tubes found

Manufacturers

Brands

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

    Audio Performance

    Key Features
    • Low voltage electrostatic focus
    • Metal backed screen
    • External conductive coating
    • Neutral density filter faceplate