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.
The circuit presented was obtained from a 1976 Italian Radio Elettronica but can be easily...
Using the well-known CK722 and also the CK721, this signal follower or tracer was found in Radio...
This circuit was found in General Electric documentation from 1964. It makes use of a PUT, called the...