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Since the beginning of 1962, the radio receiver network lamp Record. "Record.6.1.M" was created on the basis of the radio "Record-61" of the Berdsk radio plant. In the receiver applied printed wiring. Wave ranges: LW, MW and survey KV (24.8 ... 76 m). Sensitivity on all ranges of 150 ... 200 µV. Selectivity 30 dB. Rated output power 0.5, maximum 1 watt. Frequency range 100 ... 4000 Hz. Power supply, power consumption 40 watts.