The Theramax and Fatman are both kits I built from Paia. The Theramax is one version of the classic Theramin, the Fatman is an analog synth. At one point I hooked up a microcontroller so you could control the fatman by using the theramin. It was OK, but the theramax scaled the pitch contol voltage in volts/Hz and it made it difficult to play. I never got around to doing the math to linearize the response before I scavenged the OOPic to be used in the astro cart.
	look at all those wires. oh my.