This car alarm was found in a 1965 General Electric manual. The SCR can be commonly used with the TIC106 and sensors are placed in the doors using the existing courtesy light switches.
This circuit is one of many that the reader can find in this section for testing crystals. The...
I found this circuit on a December 1976 Radio Elettronica. The Italian magazine no longer exists, but...
June 2017 - Mouser Electronics has in stock the new AC Metallized Polypropylene Film Capacitors...