TDS-7 1981
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Since 1981, stereo isodynamic telephones "Amfiton TDS-7" have been produced by the Kotovsky branch of the Schetmash plant in Chisinau, as well as the Kachkanar radio plant "Formanta". ,86e6f450b8cc469628ba70bf2947b049 Since 1981, similar telephones "Electronics TDS-7" have been produced by the Leningrad plant "Magneton". ,86e6f450b8cc469628ba70bf2947b049 The telephones are designed for listening to mono and stereo phonograms from household radio equipment. ,86e6f450b8cc469628ba70bf2947b049 The nominal impedance of telephones is 8 ohms. ,86e6f450b8cc469628ba70bf2947b049 Rated input power 2 mW. ,86e6f450b8cc469628ba70bf2947b049 The nominal range of reproducible frequencies is 20 ... 20,000 Hz. ,86e6f450b8cc469628ba70bf2947b049 Weight 400 gr. ,86e6f450b8cc469628ba70bf2947b049 ,null,ru,null,null,null,null
Documentation:
Information from collection of Valery Khartchenko