We found this circuit with the CMOS4046 in the August 1994 Electronics Now magazine. The circuit is activated by pressing switch S1.
This circuit for cars with mechanical ignition systems was found in the Electronics Experimenter handbook...
This code practice circuit was found in a 1990s issue of Radio Amaterur Today magazine. It...
The circuit presented was found in the Linear Applications Handbook of the National Semiconductoir of 1994....