This flashing allegory with 555 integrated circuits was found in the Radio Electronics Experimenter magazine from 1989. It is a simple circuit to assemble.
We found this circuit in a 90's EDN. The circuit is based on a control integrated that is still...
In the figure we have the way to use the transistors of an old-paired pair as a trigger circuit. The...
This very high input impedance JFET circuit was found in the 1995 Encyclopedia of Electronic...