From Travis Johns via the CatSynth Facebook page.

Mandarina “assisting” with some modules – March is the hottest month in Costa Rica and my studio is on the second floor of a building with a metal roof so daytime temperatures render it unusable – so I’ve been bringing work home with me in order to work at night when the temp’s a little more bearable. Unfortunately, there’s usually a certain orange snag to that plan. The modules themselves are from a class I’m teaching called TicoTronics – teaching basic electronics and circuit design via open source synth schematics, modified to use only components common to Costa Rica. For more info – www.vauxflores.com

You can see an example of Travis Johns’ creations and here.