Spent a bit of time at a local guitar pedal & synth expo, mostly for the synth part. I was surprised how much of the synth examples were "here's my version of Teenage Engineering's OP-Z" or other various digital synths-in-a-box. Kinda disappointing, really. Barely any eurorack, and nobody selling DIY kits!

4ms was there, and their racks were cool enough, but they were promoting their MetaModule, which is basically a Pi running an entire VCV Rack install embedded in a eurorack module. Seriously, you can call up any virtual module you want and wire up everything virtually. At that point, why have a real rack?

PDX Synth Library was there, and had some neat rack builds. One was a skiff made from a section of PVC conduit, with the lid + handle also serving as the stand... Seems like something that would be very easy with a handful of 3d-printed inserts.

But yeah, not really much else for the #synthdiy hobbyist.

Trying to avoid charge pumps for a negative rail means constantly tripping on diode drops and paying 10x for R2R opamps.

Not sure why I decided to "die" (go mad and/or broke) on that hill.

#diyelectronics #synthdiy #diyeffectpedals

The next part of the rat orchestra with #cablesGL and #vcvrack :

A very squeaky step sequencer, press the encoder to enable or disable step. Change the value to change pitch.

#theWorkshop

A longer version up over on youtube: https://youtube.com/shorts/zPrXNJKDm9Y

#characterDesign #rat #rats #cute #modularSynth #synthDiy #MidiController

Here's a better example of my newly built Passive Low Pass Gate acting in a real patch.

The Chord Organ by Music Thing Modular is a great VCO to use here, the bouncy echoes come from the sound being run through the LPG, which is being driven by triggers from the Doepfer A160-2 clock divider. The clock source and echoes are the 4MS Dual Looping Delay.

Other incidental sounds appear from several additional sound sources, including the Benjolin that is driving other sequencers and gates.

#modularsynth #SynthDIY #eurorack

Final version of the DIY passive Low Pass Gate. From design to build in about 3-4 days.

Had some troubleshooting to do with ground connections but got it working without too much fuss.

I built this specifically to go in the case in the video because I needed a simple filter for a different dimension on the existing sound palette.

#SynthDIY #electronics #Eurorack #modularsynth #vactrol

Passive LPG is live!!

Here, the VCO is sending a pure square wave melodies into the low pass gate. The Maths is in repeat mode, sending very short envelopes to the LPG.

In the middle, the switch lets all the sound through and accents the sound with the control voltage coming in.

But switched to the top (bouncy!) and bottom (mellow!), the filter slope is modified by bigger capacitors so that only the CV pings can be heard.

#SynthDIY #electronics #LPG #LowPassGate

LPG progressing nicely. Buss wire for ground and mechanical stability.

#SynthDIY #electronics

Got the main board for the low pass gate done. Might trim the back legs of the vactrol so it lays flatter. Also finished up the panel, laying on the table in the background.

Tested a handful of vactrols and found one I like, but it is amazing how different they can sound.

#SynthDIY #electronics

Y'all wanted some sound so here's some sound... 😎

Pulse wave from Benjolin2 and CV from Maths.

#SynthDIY #electronics

It feels so nice to put my whole mind into something completely different.

Planning the low pass gate into a 3hp panel.

#SynthDIY #electronics