This circuit for cars with mechanical ignition systems was found in the Electronics Experimenter handbook from 1991. It inhibits the ignition system, preventing theft.
We found this circuit in a 2005 Linear Technology manual. The resistor is calculated for the...
The circuit shown was found in American documentation from the 1990s. The transistor can be of any...
This circuit combines a low-offset and a high-speed operational amplifier. The circuit was found in...