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The subscriber loudspeaker "0.5 GD II-1" has been produced presumably since 1952 by the Volodarsky Ulyanovsk Machine-Building Plant. ,86e6f450b8cc469628ba70bf2947b049AG was produced in several versions. ,86e6f450b8cc469628ba70bf2947b049Prior to that, a similar subscriber loudspeaker named "ZIK" (GDM-0.5) was produced by the Leningrad Plant named after Kalinin, which at the end of 1951 transferred production to the city of Ulyanovsk. ,86e6f450b8cc469628ba70bf2947b049Presumably in the fall of 1953 the Ulyanovsk Machine-Building named after Volodarskiy Zavod switched to the production of AG "Volga".,86e6f450b8cc469628ba70bf2947b049,null,ru,null,null,null,null