Tube-number record
21ARP4-A
0 archive entries
21ARP4-A is a tube type in the TubeDatabase archive (class: Picture Tube). Recorded specifications: brand General Electric, year 1954, construction Display / CRT, socket Duodecal, maximum plate voltage 20000 V, and maximum plate dissipation 6 W. The archive does not yet hold a photographed example of this type.
BrandGeneral Electric
ClassPicture Tube
BaseDuodecal
Filament6.3 V @ 600 mA
Construction
Primary TypeDisplay / CRT
EnvelopeGlass
Sections1
Filament / Heater
Heater NotesHeater current: 0.6 Amperes (600 mA)
Absolute Maximum Ratings
Plate Voltage20000 V
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Typical Operating Conditions | 16000 V | — | — | — | — |
Application Notes
The 21ARP4-A is a magnetic-focus and magnetic-deflection, direct-view all-glass picture tube. A magnetic focusing unit is an integral part of the electron gun, allowing focus adjustment via a shunt sleeve. An external ion-trap magnet is not required. Shielding for x-ray radiation may be necessary if operated above 16,000 volts.
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