Portable radio `` Leningrad ''.
Portable radio receivers and radios on p / p.DomesticSince 1960, the portable radio receiver "Leningrad" has been experimentally produced by the Leningrad Mechanical Plant "Leninets" (presumably). In 1960, about 20 receivers were produced, relatively serial production began in 1961. The portable experimental all-wave exhibition transistor radio receiver Leningrad has been exhibited in the Radio Electronics pavilion at VDNKh since the beginning of 1959. It is assembled on 10 transistors, its output power is 0.5 W. The radio receiver has 7 ranges: DV, SV and five HF sub-bands. It is powered by eight elements of the Saturn type, with a total voltage of 12 V. A special power stabilizer ensures normal operation of the radio receiver (its high electrical and acoustic parameters) when the batteries are discharged from 12 to 8 volts. One set of power supply is enough for two months, if you use the receiver no more than 3 ... 4 hours a day. Reception can be carried out to a telescopic antenna in the HF range, to the built-in ferrite antenna at long and medium waves, and to an outdoor antenna in all ranges. An effective AGC is used in the design of the radio receiver, which ensures the reception of radio stations of different power and distance with the same volume; volume and tone control is also provided. The "Leningrad" radio receiver was created on the basis of the "Trans-Oceanic Royal-1000" receiver - 1957 produced by the American company "Zenith", see the last photo.
