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 power supply can provide 10 A currents. Its regulation is made by 7812 integrated circuit. The...
This circuit can be used to obtain a zener voltage from a common zener of another value, adjusting...
This TTL siren is formed by two oscillators using each two Gates of a 7400. Frequency or the...