Latest Posts

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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Midi2CV-Connecting worlds!

I was not sure this would be a very interesting build as it is not a sound generator per se, but it still will gonna save me the 150E it costs to get a nice commercial Midi 2 CV interface. This looked like the best DIY project I’ve found, it comes complete with the arduino code and all: https://github.com/elkayem/midi2cv It…
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BH-101 Synthetiser

This is my first “real” voltage-controlled synth build using the CEM3340 clone the AS3340: https://electricdruid.net/cem3340-vco-voltage-controlled-oscillator-designs/#comment-20138 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: https://electricdruid.net/product/noise-1b-noise-generator/ I’m mixing the 4 outputs with a GrandMixer DIY,…
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BB BP-1 Filter

Next on the list is building great filters, both resonating High and Low Pass, voltage control is a must if I want this to integrate further on a CV controlled system. I found this great component manufactured by Alfa and distributed by Electric Druid: the AS3320, a clone of the CEM3320 as featured in the Sequential Pro-One and the Oberheim…
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B-Board

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 : http://electro-music.com/forum/topic-54826.html 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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Grand Mixer DIY

Now I need to put all thiese “modules” together, so I’m going to build the simpler mixer I can think of… That design is exactly what I think I need: http://www.experimentalistsanonymous.com/diy/Schematics/Buffers%20Switchers%20Mixers%20and%20Routers/Simple%20Mixer.pdf

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. https://archive.org/details/roland_Roland_TR-808_Service_Manual I got help from this one, as the original schematics have been redone at a larger scale: http://www.ericarcher.net/wp-content/uploads/2014/07/tr-808-bass-drum-diy-project.pdf Just be aware that you are going to need…
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