Korg Microkorg repair?

Nobody reads labels It must have happened, I just waited. When I was enjoying playing Bomberman in another part of the city, my girlfriend decided to hit some tunes on my old, trusted Microkorg. When I returned home, she seemed scared. I asked, what happened. She replied, something happened to my synthesizer, it behaves strangely. […]

Tetsuo – PSU supply indicator

Tetsuo eurorack power supply indicator was my first eurorack module and it detemined the graphics for my entire modular system. It was inspired by “Akira” movie stadium scene, when Tetsuo, sitting on the concrete armchair, sets free his power. To be specific, I made two versions of Tetsuo – one with power socket and one without it.   […]

Modular synth busboards

There is no modular synth without busboards. My design is based on Doepfers A100-BUS. It is simple, cheap easy to make. Same as Doepfer, mine has CV and GATE buses – thus 16 pin power connector. Schematic is very simple, but you have to do it before PCB design. Nothing fancy here, 14 2×8 pin […]

Modular synth power supply

This  article was updated  slightly on 21.05.2018 and includes filtering capacitors change and some output voltage measurements.   Introduction Every modular synth needs a power supply (except systems containing only blanks and Giskies 12 HP Bottle Openers). Switched power supplies sometimes cause problems (when you have a lot of small modules, all with input power […]