Transistor network electrophone '' Karavella-203-stereo ''.

Electric record players and electrophones on semiconductorsDomesticSince 1982, the "Karavella-203-stereo" network transistorized microphone has been produced by the Kirovsky plant "Ladoga". Electrophone is designed to play back recordings from mono and stereo records. The peculiarity of this microphone is the vertical position of the record being played. All this required the solution of technical problems related to the elimination of the influence of the imbalance of the gramophone record leading to a change in the playback speed, increased requirements for the tonearm of the pickup and the disc assembly. For the EF of the 2nd group of complexity, the solutions that are admissible in terms of costs for the models of the highest group turned out to be unsuitable, so the necessary parameters were obtained differently - using a high-speed system for stabilizing the disk rotation frequency and a tangential tonearm of the original design. The Karavella-203-stereo differs from other electrophones in a number of new consumer qualities. So, a direct drive of the disc was used, from a super-low-speed asynchronous arc-stator motor with electronic speed stabilization, a pickup based on a tangential tonearm and a piezoceramic head of the GZK-208 type was used, a stroboscope with a built-in illumination and smooth adjustment of the disc rotation frequency, a vernier manual movement device pickup heads with blocking of working position movement, record holder on the EPU disk axis, record cleaner. The EF is equipped with two broadband bass-reflex speakers, the LF path is characterized by a low level of nonlinear distortion. The electrophone has properties for models of the second group of complexity: These are separate volume controls, tone controls for high and low frequencies of sound, mono and stereo switches, inputs and plate format, a hitchhiking shutdown device. The disc rotation frequency is 33 and 45 rpm. Knock coefficient 0.2%. Rated output power 2x3 W. The range of sound frequencies for voltage is 40 ... 20,000 Hz, for sound pressure is 80 ... 16,000 Hz. Harmonic distortion 0.5%. Signal-to-noise ratio -63 dB. The crosstalk attenuation of the channels is -50 dB. The dimensions of the microphone are 420x437x185 mm. АС 332х475х165 mm. Weight 13 kg. АС 6 kg. The price of the kit is 347 rubles.