This grounding test circuit was found in an American 80's documentation. The circuit is for the 110 V power grid but can be changed to the 220 V power grid.
This project shows how to use an SCR in a starter circuit for a common fluorescent lamp. The SCR...
This circuit was found in a 1967 Motorola manual. Its purpose is to provide a very accurate...
This interesting application of a stepper motor as an encoder serves to test its application...