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The transistor "Sputnik-304" network transistor since the beginning of 1987 has produced the Leningrad Electromechanical Plant Sputnik. The network transistor electrophone "Sputnik-304" is intended for reproduction of a sound recording from records of all formats. The model consists of a case, a 3-EPU-38MP type electro-losing device, a low-frequency transistor amplifier and an integrated speaker system with 3GDSh-2-8-100 loudspeaker. Rated output power 1.5 W, maximum 3 watts. The range of reproduced sound frequencies for sound pressure is 125 ... 7100 Hz. Power consumption from the network 25 watts. The frequency of rotation of the disk EPU - 33 r / m. Electron mass of 7 kg.