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Since April 1936, the radio receiver of the network vacuum tube SVD was produced at the Leningrad Kozitsky Plant, and a little later at Plant No. 3 of the NKS in the city of Aleksandrov. In 1935, in the USSR, at the state level, the slogan "Catch up and overtake" appeared, in everything and everyone. This also applied to the production of receivers, which in those years were much inferior in quality to even the simplest Western models. The development of new types of radio receivers with HF bands was entrusted to the Leningrad Institute of IRPA. After some deliberation, it was decided to purchase some of the best American receivers at the time. The choice fell on RCA Victor receivers, model "RCA-140", 1933, and model "RCA-T-10-1", 1935, especially since both import models were freely sold in the USSR. At the same time, contracts were signed for the supply of various American radio tubes to the union. The radio receivers were purchased and transferred to the Leningrad Kozitsky plant, where some of them were photo and were documented and dismantled to the ground, while others remained unchanged for comparison. All components, parts and elements were carefully copied and put into production. By the beginning of 1936, the plant already had a sufficient reserve of components for the release of the first domestic high-end radio receiver with the HF bands. The first radios "SVD" (Network, Vsevolnovy, with Dynamics) repeated their American counterparts in appearance, had a plywood back cover, an original scale and handles but with inscriptions in Russian. In terms of quality of work and technical parameters, the receivers were still somewhat inferior to those of the Americans, left for comparison. The reason for this was the low quality of domestic materials used in radio components and radio receivers. The assembly of receivers was small-scale, manual and to speed up their production, the documentation was transferred to Aleksandrovsky Plant No. 3 of the People's Commissariat of Communications, and at the Kozitsky plant, the production of radio receivers '' SVD '' was gradually stopped. In the city of Aleksandrov, the release of radio receivers SVD began from the beginning of June 1936, but not more than a month passed after a scandal broke out with the Americans about copyright infringement.Production of receivers had to be temporarily suspended, and the 5th Main Directorate of the NKOP under the IRPA, in Leningrad, was forced to conclude an agreement with RCA on the official purchase of a license, as well as on the development of radio sets specifically for the USSR. A delegation of the best experts in the field of radio engineering headed by engineer E.A. Levitin was sent to the USA to monitor the process of receiver development, procurement, training and information management in IRPA. In the reporting documents sent to the IRPA, the licensed radio receiver developed by the Americans passed as "9-lamp", and in the IRPA it was called "SVD-1", with this name it went into serial production at the plant number 3 of the National Communications System of the city of Alexandrov with the autumn of 1936. Radio "SVD" is designed to receive broadcasting stations in 5 bands. Ranges '' A '' - 2000 ... 732 m (150 ... 410 kHz), '' B '' - 555 ... 200 m (540 ... 1500 kHz), '' B '' so-called '' Intermediate range '' 200 ... 77 m (1500 ... 3900 kHz), '' G '' - 77 ... 30 m (3900 ... 10 000 kHz) and the last '' D '' - 37 , 5 ... 16.7 m (8000 ... 18000 kHz), that is, with no reception at IF frequencies, namely, 410 ... 540 kHz, the receiver received continuously from 150 kHz to 18 MHz. American radio glass tubes of 2 volt series were used in the receiver. Our domestic plants "Svetlana" and the plant "Radio Lamps" tried to produce analogs of American lamps, but their quality was very low. The intermediate frequency is 445 kHz. The average sensitivity of the receiver on all bands is 30 µV. Selectivity, in modern decibels of 20 ... 24 dB. The nominal output power of the amplifier is 0.7, the maximum is 1.5 watts. The receiver is powered from the AC network 110 ... 125 volts or 200 ... 230 volts.