Transistor network electrophone '' Concert-304 ''.
Electric record players and electrophones on semiconductorsDomesticSince the beginning of 1977, the "Concert-304" transistor network electrophone has been produced by the Moscow experimental plant "Agregat". The microphone is assembled on transistors, and since 1990 on a microcircuit and a transistor in a desktop version, powered from the mains. Designed for playback of records from regular and LP records on its own detachable speaker system. The model is equipped with II-EPU-50, which has three speeds of rotation of the disc and auto-stop at the end of playing a gramophone record. The speaker has two 1GD-40 loudspeakers. The range of operating frequencies of sound reproduced by the speakers is 100 ... 10000 Hz. Rated output power 1.5, maximum 3 W. The bass amplifier is assembled on nine transistors (microcircuit and transistor). Power consumption from the network is 20 W. The dimensions of the model with the speaker are 410x275x185 mm. Weight 7.5 kg.
