I stopped by Control in Williamsburg yesterday. Jonas put together a patch consisting of a Synth Tech E560 Deflector Shield, Make Noise Optomix, Function, Pressure Points and Brains. We were discussing how great the Synth Tech modules were and how the Vactrols in the Make Noise stuff makes things sound rubbery in a good way. Vactrols use LEDs inside the modules to control parameters.
“A Vactrol is an optoelectronic device consisting of a source and detector of light, which are optically coupled and electrically isolated from each other. The light source is usually a light-emitting diode (LED), a miniature incandescent lamp, or sometimes a neon lamp, whereas the detector is a semiconductor-based photoresistor made of cadmium selenide (CdSe) or cadmium sulfide (CdS). The source and detector are coupled through a transparent glue or through the air.” – Wikipedia
For more info: ctrl-mod.com