If you're looking for clever ways to repurpose any of the old CD or DVD players that might be scattered around your house, we ...

Decorative lighting has become quite popular, with options such as LED surface panels, strip lights, COB lights, spotlights, ...

Building on that concept, the next objective was to create an even smaller FM radio compact enough to fit inside an earbud.

The audio component centers around the SS8550 PNP transistor (Q1) which serves as a driver for the passive buzzer (BZ1). This ...