Everything for Electronics
Posted in: Nuts and Volts (August 2012)

Make a modern DIY version of the Flanagan ‘Neurophone’ with a TL494

Do be careful about putting them on and taking them off, though. They’re putting out a fairly high-power ultrasound signal, so if they sit too loosely on the skin they could irritate it.





[Source] http://neurophone.wordpress.com/