Archive for date: October 24, 2009

Make an Instant-Charge Screwdriver | Popular Science

October 24, 2009 | Amateur Radio | By: Mark VandeWettering

Ben Tongue’s article on using a supercapacitor to hold energy harvested from an antenna tuned to strong local broadcast system got me thinking about supercapacitors again. Digging around uncovered a link to a DIY project (very simple) for creating your own electric screwdriver powered by supercaps. (I think they are a bit cavalier with the […]