POLYKIT
Easy Kits & PCBs for Eurorack Enthusiasts
Build your own modular synthesizer
POLYKIT offers DIY Eurorack module PCBs, kits, and open-source synth projects designed for makers of all skill levels. From oscillators to power supplies, everything is crafted to be reliable, easy to assemble, and fun to explore.
Eurorack Quantize & Hold
This Arduino based module let’s you quantize and hold a given control voltage. There are controls for selecting different scales and transposing a note. The module can either continuously quantize a given voltage or hold it when triggered. It is a great companion for sequencers with unquantized outputs or for quantizing other voltage sources.
Eurorack Output Module
The Eurorack output module gives you a versatile option to either connect your modular to a mixer or amplifier, or to drive some headphones with it. There are controls to attenuate the line out and the headphone’s volume. The left input can be used as a single mono input.
Eurorack Clock Divider
This clock divider is built around the CD4024 CMOS 7 stage binary counter. It divides an incoming clock signal by powers of two, providing six simultaneous outputs. It’s a compact and reliable utility module that works well alongside sequencers, drum triggers, or other clock-driven circuits.
Featured modules
Eurorack Sequencer
The Eurorack Sequencer is a straightforward, flexible 8 step sequencer designed around the Arduino Nano.
