Zvuk 1956
Sorry, this page is not translated yet. Automatic translation used.
The subscriber loudspeaker "Sound" since 1953 produced the Izhevsk Radio Plant. AG `` Sound '' was produced both for operation in a radio transmission network with a voltage of 30 volts, and for the Moscow city radio network with a voltage of 15 volts. There are no other speaker data yet.
Video:
Information from collection of Valery Khartchenko