Transistor network electrophone `` Corvette-Stereo ''.
Electric record players and electrophones on semiconductorsDomesticElectrophone "Corvette-Stereo" since 1972 produced LPTO "Vodtranspribor", the city of Leningrad. Block stereo microphone 1st class "Corvette-stereo" (I-EF-71C) - designed for playing mono and stereo records. It consists of a three-speed EPU type II-EPU-52S, a stereo amplifier and two speakers. The amplifier is made on transistors, its maximum output power is 2x10 W, the operating frequency band for which the AC is also designed is 80 ... 12000 Hz. Speakers of the "CA-5" type provide stabilization of the stereo effect over the area with an acoustic lens, creating directional radiation with an expanded area of the stereo effect. Each speaker has four loudspeakers: two types of 4GD-28 and two types of 1GD-28. Loudspeakers of the 1GD-28 type are located in an acoustic lens at an angle of 40 °. The microphone has sockets for external signals: this is an EPU, a receiver, a TV set, a broadcasting network, an electric guitar, etc. The microphone is powered from the network, consuming 60 watts of power. The dimensions of the unit of the electric player and amplifier ZCh - 400x162x280 mm, each of the speakers - 400x628x228 mm. Weight 5.5, 6.5 and 10 kg, respectively. By the circuitry, design and construction for 1972, the electrophone was one of the most advanced electrophones produced by the radio industry. The electrophone was produced until 1976, and the electrical circuit was modernized several times since 1973. The export version of the model was called the "Rigonda-Corvette".
