Latest Posts

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…
Read more

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,…
Read more

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…
Read more

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: https://vimeo.com/259955613

CA3080 4 Stages Phaser

I just love Electro-Harmonix phasers such as the Small Stone or the Electric Mistress.. I found these schematics to build a Small Stone replica using the CA3080 Operational Transconductance Amplifiers: http://www.tonepad.com/project.asp?id=11 The build on a breadboard looks like this: And the sound is great, here’s a demo using a great song by Adrian Nation, Five Fingers Rapid:  

Delays lays lays

My my first effect build I wanted to do a delay so I went and shopped around for designs. I found some cool ones there, based on the cheap PT2399: http://www.diystompboxes.com/smfforum/index.php?topic=60662.0 http://www.tonepad.com/getFile.asp?id=98 And here’s the PT2399 specs sheet: http://www.princeton.com.tw/Portals/0/Product/PT2399_1.pdf I build two different designs from very simple to a bit more sophisticated. The first has only a time control and…
Read more

The OP-HPF High Pass Filter

I wanted to have an Isolator-style high pass filter device to play with. I found this design at https://www.eeweb.com/blog/circuit_projects/20hz-to-200hz-variable-high-pass-filter that uses a very common op-amp, the TL072. And there I found the design for a 555-driven negative voltage generator, needed for the TL072: https://www.allaboutcircuits.com/projects/build-your-own-negative-voltage-generator/ The only case I got is that Walkers biscuits box. Well English. I punched two holes to mount a rotary…
Read more

The NZO-Control footswitch midi controller

My good friend and great guitarist Nzo needed a simple and heavy-duty footswitch midi controller… This Hammond case I found on Ebay was a perfect fit for this project. I took to the Arduino to manage the Midi part. I found these great Single-pole Single-throw switches on Ebay as well. Just a led and a resistor, VCC/Gnd and signal wires on…
Read more