This circuit is part of an article published in the March 1990 issue of Radio Electronics magazine. The sensor consists of a grid-shaped electrode shown in the figure.
This circuit was published in an article in Electronics Now magazine in October 1995. The circuit...
This simple circuit has its trigger point set in the trimpot. The transistor can be any general...
This is the traditional version of a neon flasher, found in a 2004 documentation. The capacitor...