Sorry, this page is not translated yet. Automatic translation used.
The television receiver of the black-and-white image "23TN-4" was developed in 1941 at VNIIT (All-Union Scientific Research Institute of Television). The engineers VKKenigson, M.N.Tovbin, S.A. Orlov, N.S. kinescope 23 centimeters and the possibility of receiving a television image with a decomposition of 240, 343 and 441 lines. The TV set was successfully tested and at the Leningrad plant "Radist" was prepared for serial production, but because of the outbreak of war, all the work on the production of the model was curtailed. According to the overall design of the TV "23TN-4" and its general design in the late forties, the serial production of the TV type "KVN-49-1" was started.