This immobilizer circuit for the car was found in the Radio Electronics magazine of December 1976. It has several sensors blocking the ignition system.
The transistors of this circuit found in a 1992 Electronics Handbook can be the BC558 and the 6 V...
This 600-ohm output impedance circuit was found in a Radio Electronics from October 1963. The...
Used in radio reception, this circuit was found in the February 1983 Radio Electronics magazine. The...