This is one of the many versions we have of a 12 V power supply with the 7812. We found it in the Radio Electronics magazine of July 1984. The integrated circuit must be mounted on a heat sink.
The figure shows how to implement an undervoltage detector using a Norton amplifier and a zener...
This booster for bands up to 30 MHz, depending on the coil, works by approximation. It is suitable for...
This circuit was obtained in an Electronics Now of the 90s. The circuit monitors the DIN connector of...