The manual uses clear diagrams and analogies to explain every step, and you can even assemble the kit into a full Eurorack module using the included PCB and panel.
Skill level: Intermediate. Basic electronics knowledge needed. If you’ve completed our VCO or previous Mixer kits, you’re set.
What you’ll learn
Mixing basics:
Op-amp summing
Volume controls
Per-channel sends
Clean return path
Distortion design:
Diode soft-clipping
Variable distortion
Headphone driver design:
DC blocking
High-current output
Driver stability
What the finished module can do
Once assembled using the included PCB and panel, you’ll get a Eurorack Output Mixer module with:
4 input channels with per-channel volume controls
Send/return loop with per-channel send controls and return control
Variable distortion insert effect
Line and Headphone outputs
What’s included
All components for the breadboard build
Eurorack panel + PCB for final assembly
Power cable
40+ page illustrated PDF manual as digital download
You’ll also need: a breadboard, jumpers, dual supply (or two 9V batteries and clip connectors).
Want a smoother start? Labor is our purpose-built prototyping platform for our learning kits. It replaces the breadboard, jumpers, and power supply with a single intuitive workspace designed specifically for learning analog circuit design.
About the series
This kit is part of our mki x es.EDU Drums System lineup – a collaboration between Erica Synths and Moritz Klein to make analog drum machine design accessible, hands-on, and genuinely educational.
NB: This kit is designed as a self-guided learning tool. While we don’t offer individual support for failed builds, the manual includes a detailed troubleshooting section to help you diagnose and fix issues yourself – a crucial part of the learning experience.
NB! All kits in these series are simple and come with extensive user manuals which can be downloaded separately, therefore we will not provide customer support in case your DIY build fails to function or similar.
