I had a couple of PT2399 ICs lying around for the last year and never found a schematic or layout I wanted to try. Since I’ve never worked with that IC I didn’t want it to be too complex right away. Now last week I found something I wanted to try and I think it’s […]
I’ve had a couple of super cheap speakers from ISD1830 PCBs I wasn’t using so I though I’m gonna try something I read about (don’t ask me where tho). I connect it to a jacksocket and use it as a lo-fi microphone. Using my modular as a preamp it worked fine. It sounds pretty much […]
A long time ago I found out that patchpals are a thing and easy to build. They are basically some jacks or sockets and a couple of components . Some wrap them in shrinkwrap afterwards but I usually don’t because I never came around buying so gigantic shrinkwrap. I tried different designs and will make […]
After finding the YT video I was sure I want this for my korg volcas. I was the first one buildong it besides the creator and I could even help him find smaller bugs and verify the fixes. Most of the content of this post is a copy of the original page. Here is the […]
My new Arcade Button CV Keyboard needed a quantizer buddy imo, so I simplified a quantizer Hagiwo inspired me to build. The design works with 5V or in my case 9V (which is regulated down to 5V by a 7805 linear voltage regulator circuit) Link to code: Here
This project was a bit tricky. At first I was not sure where to start. Do I want to use an opamp circuit or transistors for the logic part? Then I wanted to pack too many features in there. At some point I had a CMOS switch in there to switch audio signals as well […]
When I got new equipment I needed a more space so I bought a keyboard stand that doubles as a table for performing. I’ve put my mixer there and the beatstep pro as well as a tapelooper and my FX units. To be able to patch everything into my modular I would need endless cables […]
This was my first build and I was soo happy when I got it to work. It takes a 9-12V input through a barrel connector and has an on/off switch with LED indicator (which I had to rewire twice to get the right indication XD) It is an Atari Punk Console a.k.a APC with a […]
knopsl modular 