We found these circuits in a 90s Radio Electronics. In them, we have the way to turn a load on and off using pressure switches. The circuit can be used with other types of direct current load.
In the figure we have another configuration of filter that uses the four Norton amplifiers of the...
Found in a May 1988 Radio Electronics issue, this is a Smitt trigger that requires a symmetrical power...
These circuits were obtained in an Electronics Now from the 90s. The integrated circuits are from...