The 7JP4 is an early black and white or monochrome cathode ray tube (also called picture tube and kinescope). It was a popular type used in late 1940s...
8 KB (890 words) - 03:01, 5 March 2024
the pairs of deflection coils is easily noticeable. Radar CRTs such as the 7JP4 had a circular screen and scanned the beam from the center outwards. The...
265 KB (28,871 words) - 09:06, 24 August 2024
diagonal was often used on a radar display. The 7JPx series of CRTs (7JP1, 7JP4 and 7JP7) was originally designed as an A-scope display CRT. A B-scope or...
17 KB (2,424 words) - 18:24, 28 July 2024
deflection, P1 green, short-persistence phosphor, 7-inch (180 mm) screen. 7JP4 – Monochrome cathode ray tube common in early postwar TV receivers. Electrostatic...
329 KB (40,580 words) - 17:54, 4 August 2024