Black and white television receiver 'TVZK'.
Black and white televisionsDomesticThe television receiver of the black-and-white image "TVZK" was experimentally produced at the beginning of 1934 by the Leningrad plant im. Kozitsky. A television set with a mirror screw is designed to receive mechanical television programs with image decomposition from 30 to 180 lines. The visible part of the image has dimensions of 4.2x5.6 cm and a viewing angle of 30 degrees, allowing an audience of up to 10 people to watch the program. The TV did not go into production because of the high cost of two thousand rubles.