tDCS

Using Jeff Vier's ideas. I built a small trans cranial direct current stimulation device. It runs on a 9 V battery and delivers less then 2 mA of current. I uploaded Jeff's schematic from github to 0SH park and received my PCB's a couple of weeks later. The rest of the stuff I ordered from Mauser and Digikey. Now that I have built it I need to read up on how best to use it.
Here are some links:
http://www.radiolab.org/story/9-volt-nirvana/
https://github.com/boinger/tdcs
http://www.reddit.com/r/tDCS/wiki/faq