This flashlight project with a blinking light that makes it easy to find was found in the January 1990 issue of Radio Electronics magazine. The light uses a common light bulb.
Pressing S1 stops the circuit. This circuit was found in the October 1992 issue of Radio...
This bass booster preamp is from an English publication (1966). We can mount it with more modern...
This circuit was obtained in a documentation from the 80's. The components used are of the time,...