Joule Thief

[Groundloop]

xee2,

You get a higher light output without any increase in input usage
if you connect a wire from the collector on the transistor to one of
the transformer output wires. (Try both transformers wires, it
matter to get the correct one!)

If you do not want a DC path back to the collector then you can use
a capacitor like I did on my circuit.

GL.

[xee2]

@ Groundloop[/color]


Thanks for the suggestion. I gave it a try. However, there was no increase in brightness with the 120 VAC LED bulbs. But, I have tied one side to ground with fluorescent tubes to get an increase the tube brightness in some other circuits I have built.

[xee2]

Joule thief lighting xenon tube using Davro inductor
video  >>>  http://www.youtube.com/watch?v=cnPa9oT6o9E

[powercat]

Nice work Xee2,
any chance of getting that  xenon tube to full brightness 

There must  be a Jule Thief record for the light amount produced for the minimum of watts, anyone know the answer ?

[Ganzha]

Joule Tieff!!!!!!!!!!!!!!!!