Cassette recorders '' Tom-305 '' and '' Vega-320 ''.
Cassette radio tape recorders, portable.DomesticCassette recorders "Vega-320" and "Tom-305", respectively, from 1976 and 1977 produced the Berdsk radio plant and the Tomsk radio engineering plant. The radio tape recorders are the same in scheme and design and are developed on the basis of the "Forum-301" model. The radio tape recorders consist of all-wave six-band receivers and single-speed tape recorders of the III class, type MP-305, manufactured by Tomsk RTZ. In contrast to the basic model, in the amplifier of the IF AM path of the radio tape recorder, not resonant circuits are used, but a piezoceramic filter; the two-stage UPCH of the combined AM-FM path is supplemented by a cascade on a microcircuit with a new AGC circuit. In the LF amplifier, separate tone controls for HF and LF have been introduced, and a LF cascade on 2 transistors has been added. The radio has built-in rectifiers for power supply from the mains. The tape recorders are designed to work with a standard MK-60 cassette. The speed of pulling the magnetic tape is 4.76 cm / s, the detonation coefficient is 0.4%. The relative level of interference in the playback channel is -43 dB. The radio tape recorders are equipped with 1GD-37 dynamic heads instead of 0.5GD-30, which were used in the Forum-301 radio tape recorder. The nominal output power of the radio tape recorder is 0.3 W, the maximum is 0.8 W. The frequency range of sound at the linear output is 63 ... 10000 Hz, and the frequency range reproduced by the built-in loudspeaker when the tape recorder and receiver are operating in the VHF range is 200 ... 7100 Hz. In other ranges 200 ... 3550 Hz. The outer dimensions of any of the radio tape recorders are 300x375x100 mm, weight is not more than 5 kg. Retail price 230 rubles.
