This switching buck regulator with the NE5560 was found in the February 1980 issue of Radio Electronics magazine. The power transistor must be provided with a heat sink.
This circuit can generate signals of different frequencies, switched by a DC voltage. The...
This circuit was found in the March 1980 issue of Radio Electronics magazine. It is based on the...
This circuit was found in a 90s Popular Electronics. It prevents the power from being switched...