This LED special effects circuit was found in the February 1992 Radio Electronics magazine. The circuit uses 4 LEDs and is controlled by R3.
Found in a documentation from the 90's, this circuit uses only one integrated circuit. The...
This power supply originally created for the CB16776E project but can be used for any type of 12 V...
The original purpose of this circuit, which we find in old American documentation, is to modulate an...