Tim Kaiser’s take on the theremin is more than a bit kinky looking – but it can delver waves of tingling aetheric sound.

The Classic GeigerPhone Theremin is based on a red phone and a geiger counter antenna. It’s Kaiser’s personal theremin. It’s also known as the Gphone, for reasons that should be obvious.

Check out the GeigerPhone’s sound below.

There’s all sort of circuit-bent weirdness at Kaiser’s site.