This circuit was found in an American 1980s documentation. It analyzes the exhaust gas of a vehicle using a special sensor. The indicator is a milliamperimeter.
This circuit has already been explored in other articles on this site. It shows how we can use two...
This small control for DC motors up to approximately 1 A uses an operational amplifier that admits...
As in the previous case (CB5045E), we have in the circuit of the figure the use of the polarized...