building stuff, more stuff, and a little bit of… stuff
Quick tip for all you “Neuro-clone” builders out there… try it WITHOUT any sound input! Just set the TL494 frequency to 40kHz, and adjust the input offset potentiometer so the TL494 puts out a standard 40kHz square wave.
Based on my research, I believe this may be all you need to get the brain-balancing effects.
Also, Patrick Flanagan is planning a crowdfunding campaign for a $99 Neurophone. Guaranteed to be better than the DIY version! Check it out here: http://www.newneurophone.com/