Three-program receiver `` Bulletin PT-310 ''.
Three-program receivers.The three-program receiver "Vestnik PT-310" has been produced by the Kursk plant "Mayak" since 1988. Three-program wire broadcasting receiver `` Vestnik PT-310 '' is designed to receive programs transmitted over a network of compacted wire hanging. PT provides reception of an audio frequency channel - (1 program) with or without amplification, radio frequency (RF) channels with carrier frequencies of 78 kHz (2 program) or 120 kHz (3 program). The receiver has a signal output for recording on a tape recorder. The design of the PT provides the ability to install it on a horizontal surface and mount it vertically to the wall. Technical characteristics: the range of reproducible sound frequencies in terms of sound pressure on RF channels is 200 ... 6500 Hz; on low frequency channels 200 ... 10000 Hz; voltage harmonic distortion for the LF channel (main mode) 2%; the range of change of the input signal for 3CH channel 19 ... 30 V; rated output power 0.9 W. Power supply from an alternating current with a voltage of 220 V. Power consumption 4 W. PT dimensions - 335x95x130 mm. Weight - 1.6 kg.
