The 555 Synth Punk kit is an electronic synthesiser that takes inspiration from the famous Atari Punk Console circuit. Each button can be adjusted via a potentiometer to produce a different tone, an the larger potentiometer can be used to create stepped sounds. Powered from a single 9V PP3, this kit contains everything you need to explore your inner musician, and the 3.5mm audio jack lets you connect your 555 Synth Punk to external speakers for use in live performances (a simple resistor divider can be used here to also allow for recording to microphone ports).
The 555 Synth Punk also has an additional expansion port that lets you connect additional potentiometer/switch panels to expand the number of tone buttons. This port can also be used with other resistive elements to create sounds based on movement, temperature changes, and even light.

Instructions / documentation
What’s in the kit?