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.
Found in an Electronics World of 1966, this circuit makes use of FETs of the time. Modern...
This setting that applies to any operational amplifier was found in an old documentation. For the indicated...
Applying an operational of the time, this circuit of an old documentation can be elaborated with modern...