I recently became aware of a BEAM builder named Zach DeBord who had a number of his creations on Flickr. I decided to pick his brain on one of his creations — a two engine, four storage cap, 2 solarengine circuit “Solarroller” — for a Street Tech DIY feature.
If you built tmy beginner solarroller from the cover story in MAKE Vol. 6, this could be a perfect follow-up project. This uses a variation of the solarengine (SE).circuit. This variation’s called a FLED SE because it uses a Flashing LED as its voltage trigger. Confused? Read on, the piece explains how this works…