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The transistor "Russia-323" network transistor since the 1st quarter of 1984 was produced by the Chelyabinsk PO "Flight". The microphone provides reproduction of recordings and consists of EPU - III-EPU-76 and a low-frequency amplifier combined in one package and a remote speaker system with a 4GD-35 loudspeaker or an 8GDSH-1 speaker system. The timbre of the sound is set using the tone controls on the treble and low frequencies. It is possible to connect a tape recorder and a broadcast network in the audio amplification mode. Shells are polished or veneered with fine wood. The rotational speed of the disk 33, 45 and 78 rev / min. The operating frequency range of the sound is 80 ... 12500 Hz. SOI 2.5%. Rated output power 1.5 W, maximum 4 watts. AC impedance 4 ohms. Power consumption 30 watts. Electrophone dimensions are 395x325x150 mm, speakers - 365x270x140 mm. Total weight 12 kg. The price of the device since 1984 is 63 rubles, since 1985 55 rubles.