Wave JT – LED Chaser with Joule Thief
Picture of The illuminated LED man (or The Joule Thief man)
Joel the joule thief - All
Schematic Diagrams: Joule Thief
A joule thief is incredibly useful for squeezing the last bits of energy from supposedly dead batteries.
Joule Thief Low Voltage Battery Charger
Make a Joule thief.
The simple Joule Thief