Based on an LS3404 this circuit was found in the July 1990 issue of Radio Electronics magazine.
June 2017 - New Honeywell MT MICROSWITCH Series can be ordered from Mouser Electronics for...
This CMOS circuit for LED displays is from a Radio Electronics magazine from February 1989. The...
September 2017 - Mouser Electronics is announcing that it already have in its inventories the new...