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The MN-12 radio receiver from the NKTU-48 train equipment kit has been produced since 1948. The radio was included in the set of train radio broadcasting equipment (judging by the HF bands and on international flights). The receiver ranges are LW, MW, and two HF subbands, the frequencies are visible in the first photo. It is clear that there was still an amplifier with subscriber loudspeakers. More information could not be found.