Tube-number record
21DWP4
0 archive entries
21DWP4 is a tube type in the TubeDatabase archive (class: Television Picture Tube). Recorded specifications: brand Westinghouse, year 1958, construction Display / CRT, base Glass, socket Miniature 7-pin (B7G), and maximum plate voltage 18000 V. The archive does not yet hold a photographed example of this type.
BrandWestinghouse
ClassTelevision Picture Tube
BaseMiniature 7-pin (B7G)
Filament6.3 V @ 300 mA
Construction
Primary TypeDisplay / CRT
EnvelopeRectangular Glass
Base MaterialGlass
Sections1
Filament / Heater
Heater NotesCoated Unipotential Cathode
Absolute Maximum Ratings
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Typical | 14000 V | — | — | — | — |
Application Notes
Television picture tube featuring a 110-degree deflection angle and low-voltage electrostatic focus. Shielding for x-ray radiation may be needed when operating above 16 kilovolts.
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