Radio receiver "Radiocassette".

Portable radio receivers and radios on p / p.DomesticThe radio receiver "Radiocassette" has been produced since 1972 by the Arzamas PSZ named after V.I. 50th anniversary of the USSR. RK is intended for use in conjunction with tape recorders "Legenda-401", "Legenda-404" and "Sputnik-401", turning them into radio tape recorders. The RC was produced mainly according to the direct amplification circuit, but there was an experimental release according to the superheterodyne circuit (below), however, all the RCs produced were experimental. The range is mainly "Long waves", but there were also parties for the "Medium waves" range, moreover, both according to the direct amplification scheme and according to the superheterodyne scheme. In its mass, the RK was produced according to a direct amplification scheme for the "Long Wave" range with changes in the scheme according to the years of release, and a radio cassette was produced until the beginning of the 80s. RC for tape recorders "Legenda-401" and "Legenda-404" had different designs and connectors, the 401 model on the right and the 404 model on the left. RC is a high-frequency part of the receiver with a detector, after which the signal is amplified by the ultrasonic frequency of the tape recorder. The sensitivity of the radio cassette in the range of DV - 15 mV / m, CB 8 mV / m and in the direct amplification scheme and in the superheterodyne. Selectivity 6 ... 8 dB in the direct amplification circuit and 12 ... 15 dB in the superheterodyne circuit. The consumed current is about 5 mA.