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Subscriber loudspeaker "RAAZ" presumably since 1955 let out the Moscow artel of Promcooperation. The loudspeaker is designed to play a low-frequency broadcast program transmitted over a wired radio transmission line with a voltage of 30 volts. Artel, further according to the years according to GOST 5961-51, produced other models of AG without name with the stamp "RAAZ". All of them were of various types in terms of power, design and various external design. Often releasing a new model, the artel did not stop releasing previous models. It is no longer possible to establish exactly the year of the launch of a particular model.