Quote Originally Posted by Tom C View Post
it was a 4 filar coil, he split the bobbin in half and added material to the center so the coil would be the same width as the magnet face, so it was a rectangular coil. take a regular SG spool saw it in half length wise and put some plastic in between to make it oval. he attaché the end of the first strand to the beginning of the second strand, start to end 4 times, to get more turns. that went to a diode, like a half bridge, and then a cap, then to a set of leds 40 in parallel. or the cap may have been first, don't remember.
Thanks! Cant wait to try it!