Found in an Electronic Hobbyist Handbook from the 1990s, this circuit is intended to apply a signal to a cable to enable its location.
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....