The USB Power Output module is a simple 3HP wide utility module with 4 USB A connectors. Perfect for powering a lamp, a small Keyboard (I use it for my Arturia Keystep) or anything else.

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The USB Power Output module is a simple 3HP wide utility module with 4 USB A connectors. Perfect for powering a lamp, a small Keyboard (I use it for my Arturia Keystep) or anything else.

Continue reading USB Power Output
A quick post about an old design.
This is a simple 3 mono input mixer.

Continue reading Simple Mixer with 3 Mono Inputs

The Passive Multiple is the simplest module you can find in a Modular Synth. But you really need a bunch of them.
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This is an updated documentation and build instructions for the Attenuator-Inverter module:

The attenuator – inverter is a tool for modifying a voltage, Control Voltage (CV) or any audio signal.
Continue reading Attenuator – Inverter