Found on 80's Popular Electronics, this circuit uses an uncommon integrated today. Programming is done by a DIP switch.
Shunt-type regulators are connected in parallel with the load by diverting the current to behave as a...
Found in a 90s Popular Electronics, this circuit is based on a common CMOS component. The circuit...
Found in an October 1992 Radio Electronics magazine article, this circuit generates a low-power tone in...