Avrora-Stereo 1970
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Stereo reel tape recorder "Aurora-stereo" since 1970 produced the Leningrad NPO "Aurora". The first domestic stereo transistor four-track reel-to-reel tape recorder of Class 2 "Aurora-Stereo" (development 1967 ... 1969) was produced in a small series since 1970, then the tape recorder was modernized and since 1971 produced under the name "Aurora-201-stereo" . The appearance remained the same, only the stereo balance control was displayed with the third handle in the middle, and in the scheme some element ratings were adjusted. The tape recorder is designed to record or play back phonograms from any source. Designed for four-track recording in mono and stereo mode. The tape speeds are 19.06, 9.53, and 4.76 cm / sec. Duration of recording and playback with No. 15 coils with a magnetic tape of type 10 in stereo at a higher speed of 2x30 minutes, at an average of 2x60 minutes, at a lower 2x120 minutes In mono mode, the recording time is doubled. The rated output power is 2 W, the operating frequency band of the sound is 40 ... 16000 Hz at a speed of 19.06 cm / s, 63 ... 12500 Hz at 9.53 cm / s and 63 ... 6300 Hz at 4.76 cm / sec. The relative level of interference in the through channel is -40 dB. There are automatic and manual adjustments to the recording level, bass and treble tone controls, stereo balance control, tape consumption counter, auto-stop at the end of the roll, trick key, which allows you to overlay a new recording on the existing one. Mains power. Power consumption 35 watts. Dimensions of the model 336x378x130 mm, weight 10 kg. Each speaker has two 2GD-22 loudspeakers installed. The size of the speaker 325h378h100 mm, weight 6.5 kg.
Documentation:
Information from collection of Valery Khartchenko