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 circuit indicates the resistance of the skin of those who hold the electrodes. RV1 makes the...
This sensitive receiver of 7 germanium transistors was manufactured in the 1960s in Japan. The...
This circuit was found in an Analog Devices manual and can supply a 3 mA current or drain a 10 mA...