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The transistor "Caravella-203-stereo" network transponder is a prototype developed in 1980 by the Ladoga Kirov factory. It is designed to play recordings from mono and stereo records. A distinctive feature of the microphone is the vertical position of the played record and the direct drive of the disc. The rotational speed of the disk 33 and 45 rpm. The detonation coefficient is 0.1%. Rated output power - 2x6 watts. The range of reproducible sound frequencies at the AC input is 60 ... 18000 Hz. The harmonic coefficient is 0.2%. On the basis of this experienced electrophone, since 1982, the plant produced a serial electrophone with the same name - "Caravella-203-stereo".