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.
This circuit deactivates devices powered by the power grid so that when the power returns, they do...
This conventional oscillator with the 741 can be precisely adjusted to produce a 400 Hz signal. The...
This circuit was found in an ancient American documentation. The integrated circuit is of the time...