Found in a 90s documentation, this circuit appears in other configurations on this site. The circuit can be powered with voltages from 5 to 12 V.
This circuit is from American documentation from the 1980s. The transistors are general purpose...
This circuit was found in a Popular Electronics of the 1990s. The sensor is a rotating mechanical...
The purpose of this circuit is to sense the water level in the windshield wiper reservoir. The circuit...