A forum member at Hacked Gadgets called Reverend Jones has a way to make your own USB power supply from an old plug in power supply To convert this old power supply into a USB power supply he says to first acquire a regulated 5 vdc wallwart (old power supply) rated at 500ma or higher (he used one from an IoMega Zip drive) and then added:
- 330 ohm 1/4 watt resister
- 10k ohm 1/4 watt resister
- 3mm LED (red, green or yellow)
- USB-A jack, female
Here's a shot of the original power supply![](http://4.bp.blogspot.com/_V48_SiJm-_g/RszUnbQ8NZI/AAAAAAAABIM/hWf22SaPxgg/s320/1.jpg)
![](http://4.bp.blogspot.com/_V48_SiJm-_g/RszUnbQ8NZI/AAAAAAAABIM/hWf22SaPxgg/s320/1.jpg)
This is the power supply with all of the parts exposed
![](http://1.bp.blogspot.com/_V48_SiJm-_g/RszUnrQ8NaI/AAAAAAAABIU/-La8c20IP0Q/s320/2.jpg)
![](http://1.bp.blogspot.com/_V48_SiJm-_g/RszUnrQ8NbI/AAAAAAAABIc/tKLQMchJT-Y/s320/3.jpg)
What a great way to re-use old computer parts instead of tossing them in the landfill! Read the entire how-to over at Hacked Gadgets Forums