DIY Eurorack Cabinet

I had this small shelf I wanted to turn into a rack for a while: I had to figure out a way to hold the faceplates in the middle. A few pieces of wood used for baseboards will do the trick. I first have to find the right order for the few modules I’ve done so far..From left to right,…
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BR-808 Hi-Hats euroracked

Following my goal of standardizing the stuff I built previously to be compatible to the Eurorack standard, I had this 808 Hats clone redone: Here is a little demo:

Eurorack Bus & PSU

I need to build something to power the new stuff, at least the BH-101, its waveform mixer and the Midi2CV interface. According to the Doepfer Eurorack specs, the pinouts go like this:I’m gonna go for the full 16 pin version, as I might need the +5V bus sometimes. I thought of something like this, which is gonna use my DP832…
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BH-101: Euroracked

To easily integrate the BH-101 amongst other instruments, I had to choose between the standards available. I went for Eurorack aka the Doepfer A-100 system. A bus with +12V, -12V and +5V is really the core of it, along with physical dimensions to fit in the racks. Eurorack requires a faceplate of 128,5mm x a multiple of 40mm, drilled with…
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BH-101 Synthetiser

This is my first “real” voltage-controlled synth build using the CEM3340 clone the AS3340: The CEM3340 was the oscillator used in the famous Roland SH-101 and MKS-80. It has 3 waveforms: Ramp, Triangle, and variable-width Pulse. In my build I added a white noise generator, the Noise1B from ED: I’m mixing the 4 outputs with a GrandMixer DIY,…
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I just put together all the units I’ve been building. I just sticked the SSS sequencer, the PT39 delay, the 3080 Phaser, the Grand-Mixer, the 808 Kick Clone and the Nano-B synths onto a piece of plywood. Here is how it sounds through my iPhones mic and Youtube audio encoding.

808 Hi-Hats Clone on stripboard

After the successful cloning of the 808 Kick, I needed at least a hi-hat to go along. I found this great thread on electro-music, about building the 808 hats on a stripboard: Check the thread out here : So I decided to step up my game a little bit, and turned the soldering iron on.. After a first attempt,…
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808 Kick Clone

Nothing better than the 808 kick as a first beatbox build, a solid foundation… There are many designs around based on the original service manual published by Roland, including all the schematics. I got help from this one, as the original schematics have been redone at a larger scale: Just be aware that you are going to need…
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SSS-Super Simple Sequencer

The Hackadays series by Elliot Williams are a gold mine: Logic Noise: Sequencing in Silicon This is a super simple 8 steps sequencer based on the Baby 10  featuring two 4017 ICs. Here is my breadboard rendition of it gating the power of a 4069/40106 based oscillator:

Nano-B the 2.50 Euros synth!

This is loosely based on the excellent series by Elliot Williams from ( . This is an awesome source to get into audio hacking. Here’s the BOM and price list: Breadboard             1.00E 40106 IC                 0.30E Switch                  …
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The Notes & Volts Audiuno Granular Synth

I’ve been interested in electronic music for a while, so I thought I’d just try to build my own synths. I found this great website and its Arduino-based synth “Auduino”… Let’s get to it..Soldering stuff, resistors, wires, breadboard, pots, Arduino and more. First I built an Arduino on a breadboard using an ATMega 328 (tut on the Notes and Volts…
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