FALSE THEREMIN
[vilxes91] sent in this great bit false-theremin (translated). Its a quite simple circuit, that can in shape in truly little places. It isn’t a true theremen since it utilizes the amount of light coming in around the lid for the modulation. To play it, you turn it on as well as open it up, the more open the lid, the higher the pitch. You can see a video of it in action after the break.