A story is really short: friend asked me to design a mixer/sync splitter which could fit between 2 3PO Pocket Operator cases from Dich Studios, so he can set the output level of each Operator separately. The cooperation was 100% remote and e-mail based, so it was very interesting experience for me. The plan […]
The purpose of my passive volume control build was simple – I just needed an analog regulation of headphones loudness my laptop was missing (and nothing feels better than a potentiometer knob in your hand). This project was so incredibly boring, that at first I didn’t want to write about it. However, apart from its […]
Introduction As Korg Volca Modular prices dropped recently to around 100 euro, it became a great and quite cheap introduction into the World of Voltage Controlled Modular Synthesizers. With additional Arduino and few components, you can ensure yourself many nights of modulation heaven (or hell, it all depends). So, how to connect Arduino to Volca […]
4sum is a simple, monophonic portable audio mixer with 4 inputs and 1 output with separated level controls for each channel. I designed this one for one reason: I did not have any mixer for my Monotrons and other “toys”! (Now you can get it at patch.audio). The design The best way to design something […]
All the designs were used only for comparison and not for any commercial purposes. At the beginning… Around a week ago I’ve got a strong internal need to synthesize a sea waves sound (we don’t have an ocean in Poland), as I try to design an updated version of my Binaural Beat Generator. Usually, […]
Back to 2006 It was year 2006 and my electronic knowledge was extending. I’ve allready build a ICL 7107 voltometer and a dekatron spinner, therefore I felt I can do something really complex. One day I saw a Syntom II, an electronic drum synthesizer project printed in Electronics and Music Maker magazine, (E&MM, 1983). I […]
Kraft Drum (aka V829 Drum) is a Vox Percussion King inspired device. VOX PK is quite rare drum synthesizer from about 1967. The most noticable use was on Kraftwerks track called Autobahn – you just cannot miss this punchy and somehow distorted bass drum. The circuit First, I got some lovely Vox Percussion King […]
Not everybody needs an 808 Some time ago i started a DIY handclap project. The design was not based on Roland TR808, but Boss HC-2 (or Amdek HCK-100, if you like). With some problems I completed the prototype and made an eurorack module – it works really well. The circuit Boss circuit is different […]
When you type “Clangora” in your web browser, you will find maybe 5 different finished builds. It is not the most popular project, that’s why I feel I should show my device. The synth was designed by Thomas Henry, full description of the circuit along with printable PCB can be found in “Nuts & Volts”, […]
This is a successfull attempt to bring famous ClapTrap drum synthesizer (analog version) into eurorack synth world. It was not very easy. This particular device intrugued me for a long time. It is definitely well-known, but except pictures there is not a lot of info all over web. You can find schematics without any semiconductors […]
MFOS Echo Rockit is an small, portable synth / effect processor. The original project can be found on www.musicfromouterspace.com and belongs to Ray Wilson. The device is somehow similar to Korg Monotron Delay, but it has more modulation options. In my construction I have added amplifier with small, but very pugnacious Visaton speaker. In small […]
Resonance mod, LFO to cutoff modulation mod, if you are into Monotron Delay modding you have probably done it or at least know it exists. I wanted to go step further (and keep Monotrons sexy size). Introducing: Monotron Delay Implant! What is implant? It is an additional mini PCB, containing opamp and some passive stuff […]
There is a story behind this module. Using my countless stupidity, i menaged to broke both hands while riding my bike. After that, i had a lot of free time, but i wasn’t able to many things. With some training i menaged to master computer mouse with partially plastered hand and keyboard striked with pencil. […]
Intro Prices for this deadly device starts from 25$ (!)(*) and according to some descriptions, it’s intended for intermediate DIYers (!!). It is a popular project and, i must say, at first sight I thought it is very trashy. One chip, two potentiometers – not very finesse, but I decided to give it a chance. […]
