For anyone who is wanting to do testing with various voltages from a high-draw capacity device, I suggest you try converting an old, unused PC power supply to a Lab-quality DC Power source:

http://www.wikihow.com/Convert-a-Computer-ATX-Power-Supply-to-a-Lab-Power-Supply

Using all the different combinations of positive and negative voltages, you can get from 3.3v to 24v using a standard ATX PC power supply. (And who doesn't have 10 of these sitting around in various closets? :)

You only need about $8 worth of parts from Radio Shack and about 30 minutes of your time, and you'll be good to go!

Cool :) never tought you could use do that :)

I have a regular a/c d/c converter like the ones that comes with basically any gadget. Mine has a switch for many volt values although when I do readings they are WAY off WAY higher, I guess is cheap. Well that is why the kit has the little 3 pin filter..

I will buy a plug for it in radio shack and give it a try