2012/09/122012/09/12 By admin In Flashlight, Joule Thief SMPS DC-DC 2012-09-12 LED Light in PVC Pipe I built this quite awhile ago, I didn’t put the date in the pic.
I built this quite awhile ago, I didn’t put the date in the pic.I built this quite awhile ago, I didn’t put the date in the pic.