Ural-57 1957
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Radiola of the 2nd class "Ural-57" since 1957 has been produced by the Sarapul Ordzhonikidze plant. ,86e6f450b8cc469628ba70bf2947b049 The radiola consists of a 6-tube superheterodyne receiver and an electric player for ordinary and LP records. ,86e6f450b8cc469628ba70bf2947b049 A set of parts and assemblies was also on sale, from which, having initial knowledge in radio engineering, it was possible to assemble a similar radio tape. ,86e6f450b8cc469628ba70bf2947b049 Radiola is designed to operate in four ranges: DV and SV, two sub-bands KV-1 76 ... 40 m, KV-2 31 ... 25 m. Sensitivity in DV, SV 150 µV, at KV 250 µV. ,86e6f450b8cc469628ba70bf2947b049 Sensitivity from pickup jacks 180 mV. ,86e6f450b8cc469628ba70bf2947b049 Selectivity on the adjacent channel in the ranges DV, SV 26 dB. ,86e6f450b8cc469628ba70bf2947b049 AGC provides an 8 dB change at the output when the input voltage changes by 26 dB. ,86e6f450b8cc469628ba70bf2947b049 There is a treble tone control. ,86e6f450b8cc469628ba70bf2947b049 The range of reproducible sound frequencies is 100 ... 4000 Hz. ,86e6f450b8cc469628ba70bf2947b049 Rated output power 1.5, maximum 4 W. ,86e6f450b8cc469628ba70bf2947b049 Electric motor EPU asynchronous type DAG. ,86e6f450b8cc469628ba70bf2947b049 Piezoelectric pickup ZPU-1. ,86e6f450b8cc469628ba70bf2947b049 The radio speaker system consists of two 2GD-ZL loudspeakers. ,86e6f450b8cc469628ba70bf2947b049 Power consumption when receiving 80 W, when playing records 110 W. ,86e6f450b8cc469628ba70bf2947b049 Power is supplied from an alternating current network with a voltage of 110, 127 or 220 V. The dimensions of the radio are 549x393x310 mm. ,86e6f450b8cc469628ba70bf2947b049 Weight 24 kg. ,86e6f450b8cc469628ba70bf2947b049 Radiola had a different range and color combination of the body. ,86e6f450b8cc469628ba70bf2947b049 The radio was released until 1963. ,86e6f450b8cc469628ba70bf2947b049 ,null,ru,null,null,null,null
Documentation:
Information from collection of Valery Khartchenko