This circuit is used to protect an amplifier from excessive power output that would cause problems for the speakers. The circuit is from the January 1985 issue of Radio Electronics magazine.
For those who like experimental circuits, here is a sequential flasher system with LEDs, which can be...
This circuit can be used in broilers, greenhouses, drying chambers to regulate the temperature in a simple...
This circuit consists of an electrostatic sensor that can check if a cable is energized by simply...