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The three-program receiver Nevoton PT-307 (305/306) has been produced by the Vladimir Elektropribor OJSC since the beginning of 1988. The three-program receiver (radio timer) `` Nevoton PT-307 '' is intended for receiving radio programs transmitted over three-program broadcast networks, indicating the time or working as an alarm clock. It provides pseudo stereo sound. It is possible to turn the PT on or off at a given time. The connection of headphones is provided. PT `` Nevoton PT-305 and 306 '' differ in timers. Main technical characteristics: the nominal frequency range when receiving the 1st program 160 ... 10000 Hz, the 2nd, 3rd program 160 ... 6300 Hz. Rated output power 1 W, power consumption 8 W. The transformer keeps its operation when the mains voltage changes from 198 to 242 V. The average daily clock departure is 20 seconds. Battery backup time in the absence of a network for two days. The dimensions of any PT are 310x113x87 mm. Unpacked weight 1.75 kg.