Category Archives: Electronic projects

Simple VCO

Following the Simple LFO module, here comes the Simple VCO.
It’s a very stripped down version of the Formant VCO, modified and adapted to the Eurorack format.
This circuit is also present in the VCO section of the DM77 Drum Module.


The Simple VCO is 1V/Oct capable. In order to reduce the number of parts, only one waveform output is available.
The result is a super simple module, easy to build, to understand and maintain.
Continue reading Simple VCO

MFOS Sound Lab Mini-Synth in SMT – Assembly Instructions – v1.4

This is the build documentation for version 1.4. It’s an update from V1.3 documentation. The version 1.4 is the latest and final version. All previous corrections and mods have been integrated and thus it’s fully working and requires no further modification.

MFOS Sound Lab Mini-Synth is a cool analog monophonic synthesizer. The original version has been created by Ray Wilson from Music From Outer Space.

The Eurorack Sound Lab Mini-Synth

Continue reading MFOS Sound Lab Mini-Synth in SMT – Assembly Instructions – v1.4

MFOS Sound Lab Mini-Synth in SMT – Assembly Instructions – v1.3

This is the build documentation for version 1.3. It’s an update from V1.2 documentation. A newer version is also available. Please, check the latest information here.

MFOS Sound Lab Mini-Synth is a cool analog monophonic synthesizer. The original version has been created by Ray Wilson from Music From Outer Space.

The Eurorack Sound Lab Mini-Synth

Continue reading MFOS Sound Lab Mini-Synth in SMT – Assembly Instructions – v1.3