The tape recorders-set-top boxes &quot;Orel-306-stereo&quot; and &quot;Orel-206-stereo&quot; have been produced by the Dneprovsky machine-building plant since 1977 and 1982. The models are the same in design, wiring diagram and characteristics. Both MPs are designed for recording phonograms and their subsequent playback through an external UCU with an AU and stereo phones. Both MPs have: ShP noise reducing device; tape consumption meter; dial indicators of the recording level; input switch; Pause button; hitchhiking, triggered at the end of the magnetic tape and cassette malfunction. Power supply from the electrical network. Belt speed 4.76 cm / s. Knock coefficient ± 0.3%. The working range of sound frequencies is 63 ... 12500 Hz. The relative level of interference in the mode: recording -46 dB, playback -48 dB. Power consumption 10 watts. Dimensions of any MP - 416x202x132 mm. Weight 6 kg. The price is 375 rubles.

When the government of the USSR decided to produce civilian products (conversion) at the defense factories, they took the finished development from the Zaporozhye &quot;Vesna&quot; and, having finalized the scheme, released the MP &quot;Orel-206&quot;. After a while, GOST in terms of household appliances was tightened, and after reworking the circuit to improve the frequency response from low frequencies from 63 Hz to 40 Hz, they began to produce MP &quot;Orel-306&quot;.

Description and wiring diagram of the model in 

N.V. Anisimova. Photos of the devices were provided by Austers Raimonds Raimondovich, Riga.

Tape recorders-set-top boxes "Orel-306-stereo" and "Orel-206-stereo".