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The universal generator "MGR-1" was produced from the beginning of 1972 by an experimental plant in Leningrad. The universal generator "MGR-1" is intended for testing various high-frequency and low-frequency radio circuits of household equipment (radios, televisions, tape recorders, etc.) The generator supply voltage is 1.5 V. and an amplitude of 0.5 V. A generator of sinosuidal oscillations of low frequency, board No. 2 has a frequency of oscillations of 1000 Hz and an amplitude of 0.2 V. Need 5 mA current applied by the device.