Scope-o-Matic

The Scope-o-Matic is a simple build that helps a lot with visualisation. I am in love. I like LEDs as indicators but this makes it so much easier to shape sounds. It has an input and I added a thru socket (mult) . The buttons on the left are up and down and right selext […]

Junkmatrix – aisynthesis matrix mixer build

I was stalling this build for quite some time and after being done with it I have to say rightfully so. I still haven’t gotten too many FX in my rack and got enough mixes to build feedback loops easily. So not a must have but a fun tool to play around with. Original source: […]

Baby 5 sequencer – Moritz Klein inspired version

So this is my fifth take on the baby (8) sequencer and it is definitely the best featured one, but this time a 5/4/3 step version. I basically used the schematic Moritz Klein provided and tinkered with it until it worked for me but more on that later. The layout is pretty clear I guess. […]

LM13700 dual VCA

This one is a version of benjiaos VCA, which in turn if a version of juanito moores VCA. I added a bit here and left out a bit there. I hope you like it.

Envelope follower – my faceplate workflow and ‘ducking’

Part 1: module explanation Disclaimer: this is not a dedicated beginner module but I used it to explain my faceplate workflow. So I’ll put it also in the beginner section. I learned about ducking some weeks ago and checked out some different builds that make it possible. This is also my first hagiwo build using […]

Arduino Drumsampler – Jan Ostman build

I found this one on the lmnc forum and it seems the guy that developed the drumsampler isn’t maintaining his website anymore. I found it on the wayback machine and after some minor modifications with the help of the aforementioned forum/kind people I got it to work. Link to my Drive with two versions of […]

MS-20 Filter – LMNC layout

This is one of the most built filters and one of my most hated builds ever. I once bought waay too cheap 13700s on AliExpress and tried to build several VCAs and VCFs with them (FIVE!!!} and NONE of them WORKED. Then I gave up on OTAs. Months later I thought I’ll give it another […]

LFO – variable shape saw/tri

I built this one with a modificationsl from the original schematic. I added a switch to be able to choose two dofferent frequency ranges. One uses the original 47nF cap the other one is a 10uF nonpolar ceramic cap. Also I added a LED at the pulse out as indicator.

Shapes VCO – Moritz Klein Build

this is the Erikasynths Build of the Moritz Klein ‘shapes’ VCOI built it and it tracks okay I’d say. I used superglue on the transistors and 4 layers of shrinkwrap around them. I’m happy with it so far. Link to original project page: Here