Final tube amplifier `` UO-11 ''.

Amplifying and broadcasting equipmentThe final tube amplifier "UO-11" was produced presumably since 1970 by the "Kinap" plant. The amplifier of the "UO-11" type was included in the sets of monophonic sound-reproducing equipment "ZVUK 1-25-3", "ZVUK 1-25-4" and "ZVUK 1-25U" intended for the equipment of cinemas and cinema installations with an auditorium with a capacity of up to 300 seats ... Below, in the book by Yu.P. Cherkasov. "Handbook of projectionist" (2nd edition, 1988), in subsection 2.3 (p. 281) amplifier "UO-11" is described in detail together with a pre-amplifier with circuits and other equipment of the sets.