Network tube radio receiver "Dvina".
Tube radios.DomesticThe network tube radio receiver "Dvina" was developed in 1955 by the Riga State Electrotechnical Plant VEF. By the beginning of 1956, a number of radio receivers and radio receivers on finger lamps of various designs and parameters were developed at the VEF plant. Some of the blocks and chassis of these vehicles were unified. All devices had a rocker switch, a rotatable internal magnetic antenna and an internal dipole, if the VHF range is provided. Class III radios have 2 speakers, Class II and higher - four. The names of the receivers are represented by precious stones: Diamond, Amethyst, Aquamarine, Crystal, Ruby, Sapphire, Topaz, Amber. There was a river series: Amur, Angara, Terek, Dvina and a musical series: Concert, Melody, Symphony and others. Some of the samples were transferred for production to other plants in the USSR (mainly to new ones, where there were no strong design teams), some were made only by an experimental batch. In the newspaper Vefietis (VEFovets) at the end of 1955 it was reported that the task of the Ministry of Radio Engineering Industry of the USSR on the development of 15 models of radio engineering equipment and the manufacture of their prototypes by the designers and production workers of the VEF was successfully completed. Most of the devices developed were demonstrated at the 1958 World Exhibition in Brussels and were awarded prizes. Many developments were shown the following year at an exhibition in New York (1959). The "Dvina" third class radio was a prototype made only in a single copy.