This configuration that appears in other points of this section was obtained in a 90’s Popular Electronics. The circuit can be applied to other operational ones.
This circuit is used to detect the water level in a reservoir. It triggers the charge when the...
This circuit was found in a 1972 RCA documentation. The transistor supports an equivalent as the...
We found this circuit in the April 1993 Electronics Now magazine. Almost any general-purpose JFET...