Tube-number record
21DVP4
0 archive entries
21DVP4 is a tube type in the TubeDatabase archive (class: Television Picture Tube). Recorded specifications: brand Westinghouse, year 1958, construction Display / CRT, base Glass, socket Duodecal, and maximum plate voltage 20000 V. The archive does not yet hold a photographed example of this type.
BrandWestinghouse
ClassTelevision Picture Tube
BaseDuodecal
Filament6.3 V @ 300 mA
Construction
Primary TypeDisplay / CRT
EnvelopeRectangular Glass
Base MaterialGlass
Sections1
Filament / Heater
Heater NotesControlled warm-up time for service in series-heater string television receivers.
Absolute Maximum Ratings
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Typical Operation (14kV) | 14000 V | — | — | — | 0.1 mA |
| Typical Operation (18kV) | 18000 V | — | — | — | 0.1 mA |
Application Notes
Shielding for x-ray radiation may be needed if operating at voltages as high as 22 kilovolts. Protective resistance in Grid 2 and Grid 4 circuits is advisable.
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