This circuit tests the reverse voltage of power diodes. The transformer is high voltage and so are the rectifier diodes. The circuit is from a 1976 QST magazine.
This circuit can be used as a control shield for microcontrollers of all types. The supply is made...
The load used in this experimental circuit is a small incandescent lamp but it can be replaced by...
Found in an American documentation from 1992, this circuit for medium and short waves uses a CI of...