This automotive circuit was obtained from an 80's schematic from the integrated circuit factory itself. The voltage regulator is still common, but the operational amplifier is of the time.
This 13.8 V transistorized power supply with a current capacity of 20 A has a protection system...
This simple oscillator is yet another of the many versions of sonic insect repellent that we find...
This circuit was obtained in the publication 101 Electronics Projects of 1979. The circuit can be...