MATRIXSYNTH: GuineGuine Instruments MME DIY Eurorack Minimoog Clone

Wednesday, September 29, 2021

GuineGuine Instruments MME DIY Eurorack Minimoog Clone



The following are some initial details via GuineGuine's Julien Delgoulet on the Modwiggler forum:

PCB, rare parts and Panel kits available here.

Build guide with BOM on github.

My name is Julien Delgoulet, I'm a synth DIY passionate from a little town in France called Brive-La-gaillarde. I usually spend my time lurking on muff, matrixsynth , electro-music.com when I'm not repairing, moding or designing synth related circuits.

For quite a long time, I dream to own a Minimoog but never had the cash to buy one ...

About a year ago, a friend of mine get one and, after playing a few times with it, I decided to give it a go. (By that time, I did not know that this project will fill all my nights and week-ends ... fortunatly I have a
wonderfull wife :love: )

The initial target was to make an exact replica but finally ends up with what I call "Mini-modules" (Think ARP like sub-modules for Filter, VCO etc) for any format : eurorack / Moog 5U, you name it. Also, they could fit behind a "real minimoog sized panel".

All the design are exact replica of the Minimoog rev 2.0 (the one based on CA3046 expo converters) and are all using thru-whole components (excepted a few components that only exist in SMD packages)

So, let me introduce you the idea of "Mini-modules" and the control boards that actually "activate" them.

There will be 6 "Mini-modules":

- VCO
- VCA/Preamp
- VCF
- VCF Env
- VCA Env
- Noise/mod-mix/glide

There will be also 7 "Controller boards" :
- One for each mini-module (so you get an eurorack version of each for example).
- Another, my favorite one, which is 60HP eurorack version where 3VCOs, VCF etc plug into. ( I choose 60 HP so that if you have a 84HP case, you still have some room for a real LFO, a midi/CV interface etc)


At the moment, everything works great, I'm finalizing the "Mini-modules" and the 60 HP Controller Board to hold them.

To give you an idea of the progress made so far , here are some pictures of old prototypes and "Mini-modules" eagle boards. More to come in a few days...

As you might except, this will be a DIY project and I will propose PCBs, BOMs and schematics so that "everyone" can build his own Mini ;-)

I'm so thrilled to expose this project to you guys ,particularly on muff (where I've been more than a lurker and not very helpfull to the communtiy) and
hope you are excited as I am about this project now it is not "secret" anymore :party:

Julien

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