Windell Oskay of Evil Mad Scientist Laboratories joins me to show you how to make to squeeze the life out of your dead batteries by making a simple circuit called the Joule Thief!

More info:
http://blog.makezine.com/archive/2007/11/make_a_joule_thief_weeken.html

http://www.evilmadscientist.com/article.php/joulethief