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Portable transistor radios "Jupiter" and "Jupiter-M" from 1964 and 1967 produced Dnepropetrovsk radio plant. "Jupiter" is a superheterodyne assembled on 7 transistors and intended for reception in the ranges of LW, ST. Sensitivity in the range of DV 1.5, SV 0.8 mV / m. 26 dB selectivity. Rated output power 60 mW. The frequency range of 450 ... 3000 Hz. The housing RP of polystyrene, consists of 2 parts, where there is a compartment with a lid for the power source. When transferring the radio is placed in a leather case included in the kit. There is a socket for the phone TM-4, when turned on, the loudspeaker is turned off. The operation of the receiver is maintained when the supply voltage drops to 5.6 V. The tuning knobs and volume, the jacks for the outdoor antenna and the phone are located on the left side wall, the range switch on the back cover. The scale is graded in megahertz and is located on the dial. The upgraded receiver "Jupiter-M" is designed in the same way, but has changes in the scheme and installation (described in detail in the documentation below).