This circuit is one of many of its kind that can be found on this site. This one is from a September 1987 Radio Electronics. The triac must be controlled according to the load.
We found this circuit in the June 1991 issue of Radio Electronics magazine. The integrated circuit is...
This circuit was found in a 1967 RCA documentation. The components are of the time. The circuit...
This timer for short intervals was found in a documentation from 1966. The transistor is made of...