[Peter] has finished up his fiber optic microscope light source. When we last visited [Peter] he created a dimmer circuit for a 10 watt LED. That LED driver has now found its final home in [Peter’s] ...

This eBay item, sold under different names, is a very useful accessory for electronics hobbyists. The gizmo is infact a battery-powered pocket microscope with two white light emitting diodes for ...