Found in a 90’s Popular Electronics, this circuit can use other power MOSFETs. The transformer has a primary according to the desired continuous voltage at the output.
This circuit indicates the resistance of the skin of those who hold the electrodes. RV1 makes the...
This circuit makes use of an old operational and matched transistors. The circuit can be...
The circuit shown is from National Semiconductor, having been found in the 1994 Linear Application...