Tube-number record
21AQP4, 21AQP4A
0 archive entries
21AQP4, 21AQP4A is a tube type in the TubeDatabase archive (class: Cathode Ray Tube). Recorded specifications: brand Tung-Sol, year 1954, construction Display / CRT, base Small Shell Duodecal 5-Pin, socket Duodecal, and maximum plate voltage 18000 V. The archive does not yet hold a photographed example of this type.
BrandTung-Sol
ClassCathode Ray Tube
BaseDuodecal
Filament6.3 V @ 600 mA
Construction
Primary TypeDisplay / CRT
EnvelopeGlass
Base MaterialSmall Shell Duodecal 5-Pin
Sections1
Filament / Heater
Heater NotesUnipotential Cathode
Absolute Maximum Ratings
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Typical | 16000 V | — | — | — | — |
Application Notes
Direct view picture tubes designed for use in television applications. 21AQP4A is aluminized.
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