A simple enclosure for a basic TDCS device made using the parts listed in the guide here: http://www.makeuseof.com/tag/b...  Description of holes (Assuming the 'TDCS' text is the front face. The bottom left hole is for the Led with its housing The bottom right hole is for the toggle switch (may need to be adjusted depending on the size of your toggle switch) The middle hole is for the large potentiometer The top hole is for the trim potentiometer (optional) The holes on the very top of the box are for the anode and cathode banana jacks