Atari Punk Console is one of my all time favorite synth. It’s a combination of two 555 timer chip (or IC 556) oscillator which produced 2 layers of square wave sounds. Atari Punk Console (APC) is a name given by Kaustic Machines crew because of the “low-fi” sound it produced is similar to the games from Atari Consoles in the 80’s, with square wave similar from Atari 2600. In this tutorial I’m giving schematic, EagleCad files and PCB design of APC using NE556 Integrated Circuit. Check out the video above to hear how it sounds :)