In the figure we have one of the many ways to program the counting of a 4017. The circuit uses additional gates and was found in the Radio Electronics magazine of April 1989.
Found in an Electronics Now from the 90s, this circuit uses components that are still common. The...
May 2017 - Mouser Electronics already has inventory with ROHM BD570xx integrated circuits for...
In this 1970s receiver, the coil has a primary with 100 turns and a secondary with 20 turns, both...