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Since 1973, the Tallinn-based Punane-RET Tallinn Radio-Grid Lamp Network Estonia-006-Stereo was produced. Developed on the basis of radio "Estonia-stereo" and has a number of operational advantages. Tube amplifier replaced by a transistor. The electromotive system of the automatic frequency control system in the VHF range is replaced by electronic. Used broadband small-sized AS "10MAS-1". Radiol consists of an all-wave broadcasting receiver, an electro-reproducing device II-EPU-52C and two speakers. The receiver works in the ranges of DV, SV, HF and VHF-FM. The sensitivity from the antenna in the AM ranges is 50 µV, the FM is 5 µV. Selectivity in the AM 60 dB range. The attenuation of the signal of the mirror channel in the range of DV 60 dB, CB 50 dB, KB 26 dB and VHF 30 dB. AGC allows you to get a change in the output signal of no more than 6.5 dB when the input signal changes by 60 dB. Rated output power - 2x10 W with SOI - 2%, maximum - 2x25 W. The frequency range of the sound pressure 63 ... 16000 Hz with uneven frequency response 14 dB. The timbre adjustment limits are 14 dB. The background level from the ULF input is 60 dB or better. Transient attenuation between channels 30 dB from the antenna input and 40 dB from the ULF input. EPU has 3 speeds of 33, 45 and 78 rpm, hitchhiking and a microlift. The dimensions of the radio receiver are 790x270x340 mm, weight is 25 kg, the dimensions of the EDA are 450x160x330 mm, the weight is 10 kg, the size of one speaker is 420x247x270 mm, and the weight of one speaker is 9 kg. Kit price - 470 rubles. Advertising RL in Radio №1 for 1973.