The UAA170 integrated circuit is not very common today. This project is for a 303 Circuits from the 90s. The power supply is 12 V.
This configuration can be found in other articles on this site. This is from European...
Using an LDR as a sensor, this circuit is from the Radio Electronics magazine of December 1984. The...
This circuit was found in the August 1994 issue of Electronics Now magazine. The 4046 is uncommon...