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.
This simple MW radio circuit with two transistors was obtained in an Argentine publication from...
This circuit operates at a voltage of 1.3 V from a single mercury cell. We found in an old...
This shortwave preselector was found in the July 1994 issue of Radio Electronics magazine. The...