Found in the February 1997 Electronics Now magazine, this circuit controls motors according to the transistor used. For the transistor indicated, the maximum current is 200 mA.
Of course, with a change in the cable length, the frequency can be changed as long as it is within...
This circuit is basically the same configuration as the previous one with a power stage with...
Using the ZN1034E which reaches 19 days interval, this is a simpler circuit which can be...