Radiola network lamp "Symphony-003" since 1971 has been produced by the Riga plant "Radiotekhnika". ,86e6f450b8cc469628ba70bf2947b049The top-class stereo radio "Symphony 003" is developed on the basis of the "Symphony-2" radio, but differs from it. ,86e6f450b8cc469628ba70bf2947b049The electrical circuit has been improved, new finishing materials have been applied, a push-button range switch, a more advanced EPU type II-EPU-52S with hitchhiking has been used. ,86e6f450b8cc469628ba70bf2947b049The radio receiver has the ranges DV, SV, KV 1, 2, 3, 4 and VHF. ,86e6f450b8cc469628ba70bf2947b049Sensitivity in AM ranges 30 µV, FM 2.5 µV. ,86e6f450b8cc469628ba70bf2947b049Selectivity 60 dB. ,86e6f450b8cc469628ba70bf2947b049The band of reproducible frequencies in the AM ranges - 40 ... 7000 Hz, FM and when playing records - 40 ... 15000 Hz. ,86e6f450b8cc469628ba70bf2947b049The power amplifier is made on 6P14P lamps, switched on according to an ultra-linear circuit with auto-bias, and has an output power of 2x4 W. ,86e6f450b8cc469628ba70bf2947b049Speakers are three-way, closed type, each has three loudspeakers 6GD-2, 3GD-1 and 1GD-3. ,86e6f450b8cc469628ba70bf2947b049The dimensions of the speakers are reduced in comparison with those used in the Symphony 2 radio. ,86e6f450b8cc469628ba70bf2947b049Due to the high sensitivity of the speaker heads, it develops a sound pressure of 112 dB at a distance of 1 m, with a power input of 4 W. ,86e6f450b8cc469628ba70bf2947b049Power consumption with EPU 130 W. ,86e6f450b8cc469628ba70bf2947b049Radiola dimensions 795x525x375 mm, weight 37 kg. ,86e6f450b8cc469628ba70bf2947b049Dimensions of one speaker 790x350x285 mm, weight 14.5 kg. ,86e6f450b8cc469628ba70bf2947b049In 1976, a small series of "Symphony-003M" radio was released, which almost did not differ from the base one. ,86e6f450b8cc469628ba70bf2947b049The export radio, produced since 1971, was called `` Rigonda-Bolshoi '', it had other frequencies in the VHF range and HF subbands, and all the inscriptions were in English.,86e6f450b8cc469628ba70bf2947b049,null,ru,null,null,null,null