Subscriber loudspeaker "Oka".

Subscriber loudspeakers.DomesticSince the 1st quarter of 1953, the Oka subscriber loudspeaker has been produced by the Gorky Plastic Products Plant. "Oka" is a standard 30 volt subscriber loudspeaker. Without features. No technical data available. Photos of subscriber loudspeakers "Oka" Valery Kudryavtsev, Rostov on Don.