Tag Archives: Simple Modules

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

Simple LFO Kit

Simple LFO small kit

A small kit is available for purchase! Check the “shop” page.

In the Kit, you will find the following:
Resistors, 16mm potentiometer, connectors, capacitors, IC and its socket.

Currently, no faceplate available. You want one? Tell me!
I made a double front panel for 2 LFO modules. It’s available for purchase. Contact me.


This is an outdated version, an update is available!


LFO BOM & doc 20150618

I sell on Tindie