This circuit was obtained from an American documentation from 1968. The current depends on the operational, observing that the circuit uses a symmetrical power supply.
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...