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From the beginning of 1925 to 1952, the subscriber loudspeaker of the Record series produced around a dozen USSR factories. The subscriber loudspeaker of the Record series (a plate or a loudspeaker) was the most popular in the USSR, was produced by a dozen different factories in several upgrades, such as Record-1, Record-3, etc. Establishing the entire chronology of the release of these loudspeakers is now almost impossible. Lens of the Record series were table and wall, with various supports or suspensions. The device of reproducers is simple - it is a conical fiber or paper cone with a diameter of ~ 40 cm, mounted on metal holders, combined with an electromagnetic mechanism, where a mechanical volume control was installed. More information about loudspeakers series "Record" in the documentation.