This mouse circuit was found in the January 1997 issue of Electronics Now magazine. It uses a PIC that must be programmed according to the movements.
This is a common crystal oscillator configuration with 80s transistors. The circuit has the...
This circuit was found in a 90’s RF design. The circuit has an output frequency of approximately 100...
This one-digit photometer using CMOS circuits was found in a 1989 documentation. The circuit is...