Tube-number record
21AUP4-B/21AUP4-A
0 archive entries
21AUP4-B/21AUP4-A is a tube type in the TubeDatabase archive (class: Television Picture Tube). Recorded specifications: brand General Electric, year 1956, construction Display / CRT, base Small-shell Duodecal, socket Duodecal, and maximum plate voltage 20000 V. The archive does not yet hold a photographed example of this type.
BrandGeneral Electric
ClassTelevision Picture Tube
BaseDuodecal
Filament6.3 V @ 600 mA
Construction
Primary TypeDisplay / CRT
EnvelopeGlass
Base MaterialSmall-shell Duodecal
SectionsSingle
Filament / Heater
Absolute Maximum Ratings
Plate Voltage20000 V
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Typical | 16000 V | — | — | — | — |
Application Notes
Anode, grid-No. 3 and grid-No. 5 are connected together within the tube. If operated above 16,000 volts, x-ray shielding may be necessary.
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