Portable cassette recorder "Rus-309".

Cassette tape recorders, portable.The portable cassette recorder "Rus-309" has been produced by the Ryazan Instrument Plant since 1987. The tape recorder "Rus-309" (since 1988 "Rus M-309") provides recording of phonograms, followed by playback. There is a possibility: automatic shutdown of the CVL at the end of the tape; adjustment of the recording level and its control by the dial indicator; use of 2 types of tape; separate adjustment of the treble, bass tone. Noise reduction system ensures that the level of noise during playback is reduced. The presence of a three-decade tape consumption meter allows you to find the necessary records and determine the tape consumption. Power supply - 6 A-373 elements and a network using a built-in power supply unit. The body of the tape recorder is made of impact-resistant polystyrene. Types of tapes A4205-3, A4212-ZB. The speed is 4.76 cm / s. The frequency range when using the A4212-ZB tape is 40 ... 14000 Hz. The harmonic coefficient on a LV with UWB is about 3%. The relative level of noise and interference in the Z-V channel is -55 dB. Rated output power 0.5, maximum 1 W. Power consumption 10 watts. The dimensions of the tape recorder are 359x172x85 mm. Weight 3.3 kg.