Riga-302 1969
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Portable radio receivers "Riga-302" and "Riga-302A" since 1969 produced the Riga Radio Plant them. Popov. Radio Riga-302 and Riga-302A are superheterodyne class 3 portable type collected on 9 transistors and 4 diodes. Riga-302A has a HR system. Receivers are designed to receive radio stations operating in the range of long, medium and ultrashort waves. For the USSR, the VHF-FM range was standard: from 65.8 to 73.0 MHz, and for export receivers depending on the country: from 87.5 to 100 MHz and from 87.5 to 108 MHz. Export radios had the name "Astrad" and "Vega". The export version also carried the digital name '' F3TR9 ''. For the USSR, radios were released without indices, it was simply the name Riga-302, as well as the index A, and for export the radios went with B and digital indexes. In 1971, the receivers were upgraded, after which they became known as Riga-302A-2. The sensitivity of the receiver in the ranges: DV - 1.2 mV / m, SV - 0.8 mV / m, VHF - 35 µV, FM - 35 µV. Output maximum power of 230 mW, nominal 150 mW. The band of reproducible sound frequencies in the AM path is 300 ... 3,500 Hz, in the FM / FM path - 300 ... 7000 Hz. The speaker system of the models consists of a single speaker type 0.25 DG-2. The receiver is powered by six elements of type 316. The duration of continuous operation from a set of batteries is 50 hours. The dimensions of the model are 220100х48 mm. Its weight is 800 grams.
Documentation:
Information from collection of Valery Khartchenko