This circuit was obtained from the Encyclopedia of Electronic Circuits volume 5 of 1995. The circuit uses the 4001 CMOS to obtain hysteresis in the sensor feedback.
This circuit can be used to activate the lamp when it gets dark. We found the circuit in old...
This 3-step circuit for generating digital signals was found in the November 1976 issue of Radio...
This circuit was obtained in an Electronic Engineering of the 90s. The operational amplifiers and...