The invention relates to training devices and can be used in laboratory work and design activity independent student Secondary and high schools in the disciplines of electric and magnetic circuits, electrical analog and digital electronics, automatic control theory. Laboratory bench comprises two steering and one unregulated DC power source voltage, the source voltage of sinusoidal and rectangular with adjustable amplitude and frequency of the electrical signal, three-phase sinusoidal voltage source with the ability to adjust the frequency and output signal amplitude. The technical result is to expand the functionality of teaching and laboratory complex in its use for research modes of three-phase electrical and electronic circuits. Yl 1. 1 p. P-ly.
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