Printed circuit boards have never been cheaper or easier to make. We’re not that far removed from a time where, if you wanted a printed circuit board, your best and cheapest option would be to ...

PCB etching returns to Elektor’s Circuit Special tradition as a 1980 variable power supply project is rebuilt from magazine artwork.

We’ve got a thing for projects that have no real practical value but instead seek to answer a simple yet fundamental question: I wonder if I can do that? This dead-bug style 555 blinky light is one of ...

We know that LED is a two terminal semiconductor device. It is used in most of the electronic circuits as a sign or visual representation to the normal human to know that circuit is working properly.