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Television receivers "17TN-1" from 1940 produced the Leningrad Kozitsky plant and the Leningrad plant Radio operator, and the TV sets "17TN-3" from the beginning of 1941 were produced by experimental workshops VNIIT. Work on the creation of a simple television receiver led to the Leningrad plant Radio operator, the first company in the country focused on the mass production of electronic TVs. Here came experts from VNIIT and from the radio plant to them. Kozitsky. Basically, specialists were trained on the well-known television receivers of foreign firms and the experience they had. The TV set '' 17 TH-1 '' was developed in the laboratory of the plant Ing. M.N.Tovbin and S.Orlov in the fall of 1939. The basis of the design was the serial radio "6N-1". The kinescope for the TV was produced by Svetlana. Signals of the Moscow (343 lines) and Leningradsky (240 lines) telecentres could be received on the television. Before the start of the war, the factories produced ~ 2000 TV sets '' 17 TN-1 ''. The desktop TV "17TN-3" was developed on the basis of the "TI-3" model in NII-9 (A.Raspletin, N.Kurchev, E.Friedberg) and about 200 TV sets "17TN-3" were produced in the experimental workshop of VNIIT . The TV hosted the Moscow and Leningrad television centers. In 1940, the 17TN-2 TV was developed, which was a more complex version of the 17TN-1 TV. Due to the complexity and the same parameters with the TV "17TN-1", the model did not go into production. Only prototypes were made.