This circuit was taken from old American documentation. The transistors used make it possible to control a motor with up to 2 A of current. They must be equipped with heat sinks.
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In the figure we have a typical polarization circuit for MOSFETs with a high impedance...
This equalizer was found in the May 1978 issue of Radio Electronics magazine. The component values...
Found in a 1980s American documentation, this crystal-controlled oscillator generates 100 MHz...