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The transistor "Corvette-248-stereo" network transistor since 1986 has been producing the Kirov Plant Ladoga. The "Corvette-248-stereo" electro-phone with vertical EDA and direct disk drive, has an ultra-slow DC motor, an electronic control circuit for engine operation, a tangential tonearm, and a magnetic head GZM-205D. A clamping force stabilizer is installed on the head of the tonearm holder, which, in addition to performing its main function, cleans the shellac from dust and redistributes the electrostatic charge. For convenience, the choice of tracks and determining the position of the tonorma when playing in a darkened room introduced the backlight of the working area. The amplifier has a short circuit protection in the load. It is possible to connect a tape recorder for recording and playback, as well as headphones. The microphone is completed with two three-way acoustic systems 10AC-248 with a phase inverter. The range of reproducible sound frequencies of 40 ... 20000 Hz. Since the beginning of 1988, the microphone was produced with the name "Corvette EF-248-stereo", here the head of the GZM-105D pickup with a diamond needle was used, which caused the frequency range to rise to 20 ... 25000 Hz. In all other respects, the models are the same. Technical parameters of any of the models of electrophones: The frequency of rotation of the disk of the electrophone is 33 and 45 rpm, the detonation coefficient is about 0.18%; the level of background and pickup of EDA is not worse than -56 dB; nominal output power UZCH - 2x10 W; harmonic coefficient in the nominal frequency range and at an output power of 10 W not more than 0.25%; signal / noise ratio not less than 65 dB; power consumption from the network 80 W; the dimensions of the 422Ñ…165Ñ…447 mm microphone, ÐС 444Ñ…250Ñ…182 mm; the mass of the microphone and one speaker system is 11.5 and 7.62 kg. The cost of the "Corvette EF-248S" electrophone is 250 rubles.