Since 1972, the Corvette-Stereo microphone has been manufactured by the Vodtranspribor LPTO, the city of Leningrad.
Block stereo stereo microphone of the 1st class `` Corvette-stereo '' (I-EF-71C) - is designed for playing mono and stereo records.
It consists of a three-speed EPU type II-EPU-52C, 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 speakers are designed is 80 ... 12000 Hz.
Speakers of the type `` CA-5 '' provide stabilization of the stereo effect over the area of "u200b"u200bthe acoustic lens, creating directional radiation with an expanded zone of the stereo effect.
Each speaker has four loudspeakers: two types 4GD-28 and two types 1GD-28.
Type 1GD-28 loudspeakers are located in an acoustic lens at an angle of 40 °.
The microphone has jacks for external signals: this is an electronic control unit, receiver, television, broadcast network, electric guitar, etc. The microphone is powered from the network, consuming 60 watts of power.
The dimensions of the electric player and amplifier block are 400x162x280 mm, and each of the speakers is 400x628x228 mm.
Weight 5.5, 6.5 and 10 kg, respectively.
The electronic circuitry, design and construction for 1972 was one of the most advanced electrophones released by the radio industry.
The microphone was produced until 1976, and the electrical circuit has been upgraded several times since 1973.
The export version of the model was called "Rigonda-Corvette".
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