| Five LEDs are connected to a 9V battery by means of two series resistors are all you need to build this nice-looking Christmas star. The cir...
All items tagged with LED and Soldering (3)
| The miniaturisation of components does cause the odd bit of trouble at Elektor Electronics as well. While developing last June’s Electrosmog...
| Surface mount technology (SMT) was developed in the 1980s to make possible the use of very small components that have no wire leads or pi...