This circuit detects changes in magnetic flux in a coil as an external magnetic field moves. The circuit is from Electronics Now magazine, October 1996.
This linear bargraph circuit was found in the February 1992 issue of Radio Electronics magazine. The 10...
This interesting circuit, found in a 1984 documentation, captures stations in the FM band and...
This circuit is from an old Signetics documentation. It can be implemented with modern operational...