We found this circuit for immobilizing a car's ignition system in the December 1976 Radio Electronics magazine. The circuit uses the courtesy light activation switches.
This circuit was obtained from HAM Radio magazine in an 80's issue. The FETs are types of the time...
Found in the September 1992 issue of Radio Electronics magazine. This circuit generates pulses that...
This blocking oscillator circuit was found in a Radio Electronics from November 1963. The...