This circuit was found in a 1992 publication. What it does is to light an external lamp when it gets dark. The trigger point adjustment is made in a potentiometer or trimpot and the sensor is a common LDR.
Using the ICM7556, dual CMOS version of the 555, this circuit generates triangular signals from 1 to...
We found this circuit in an English magazine from 1976. The magazine no longer exists, but just...
This circuit was obtained from an English magazine from 1977. The magazine no longer exists, but...