This 60s noise touch synth uses the bodies resistance for creating unique noises. They reach from crackling to awesome fart noise and are a ton of fun to play. But be aware that it (mis-)uses a very outdated op-amp and you need to use exactly this one! – I bought mine on AliExpress 😏

The build is straight forward and the plastic junction box I used is from amazon. I firet tested it with a 9V battery clip but then decided against that because I wanted these copper keys to play it and when they are wired and soldered properly you simply can’t open the box anymore.