The History of the Development of Television Technology in the USSR. 1920-1930s

The research is devoted to the process of creating television technologies in Soviet Russia in the 1920s-1930s; to what effect the radio-technical industry, the development of radio engineering and radio amateur movement had on this process. The author places the history of television laboratories and specialized enterprises producing serial television equipment in the context of the history of the development of the radio engineering industry in Russia in the late imperial and early Soviet periods.  Particular attention will be paid to the consideration of how the community of radio technicians was formed, specialized radio technical, and then television laboratories, departments, institutes, and societies; how industrial enterprises were created to produce radio and television equipment; what issues were discussed at special sectoral congresses (first radio, and later television), in which technical professional and popular science journals began to publish articles on television technology. Considering in detail the process of creating television technologies in the USSR in the 1930s, the author seeks answers to the following questions: why has the technology of so-called "mechanical" television been widely spread in Soviet Russia, although the development of "electronic television" has also been actively developed? What did the USSR know about television developments in other countries? How was the interaction of Soviet specialists with specialists from other countries in the field of image transmission technologies over a distance? How was the exchange of information and experience?