The openEEG project aims at describing and putting manuals for building a two channel EEG system for about U$200.
More on instructions on how to build one, can be found here.

The latest update on the page seems to be a bit old, but there is a website where one can buy the necessary PCB boards to build the device. They also sell the openEEG completely assembled.

Leave a Reply

This site uses Akismet to reduce spam. Learn how your comment data is processed.