2xADSR Dual Envelope DIY Project

And here it is...a dual 4-Stage envelope generator 8HP Eurorack. 2xADSR is a dual envelope module in 8HP Eurorack format based on the Arturia Minibrute. The schematics are openly published on the internet, so it would seem reasonable to have adapted a fun DIY panel/pcb project for educational purposes under fair use. Each envelope is an independent Attack-Decay-Sustain-Release linear contour. Each envelope takes a gate input, puts out a positive-voltage contour and a buffered negative-voltage (DC inverted) contour.

This is a DIY project, just a pcb/panel only, with surface-mount soldering required. You supply the parts components (not included), but it uses all very affordable and easy-to-find parts. I would not recommend this as your very first SMT build, maybe your 2nd or 3rd SMT build though. The BOM and Schematics for this project can be found on muffwiggler
PCB/panel are available in my Reverb Store

Testing Univox Minikorg CV+Gate Analog Synthesizer Mod

Testing out a Pitch CV + Gate mod for the Univox Minikorg, AKA Korg 700/700S. The arpeggio gets faster and ends up sounding inspired by Pink Floyd On The Run. The circuit one the breadboard is from E-Labs, Japan as shared by Cykong.com. I added a buffer on the gate since the Beatstep Pro trigger did not push enough current to make it happen. Strangely, the gate does work w/ the original MS-20. Beatstep Pro can do Hz/Volt, this setting can be made in the Arturia Midi Control Center software. Recorded direct to Tascam DR-05, no additional processing. Here's the lowdown:
Synth - Minikorg
Percussion - Basilimus Iteritas Alter
Percussion Trigger - Varigate4
Delay - Timefactor
Reverb - Big Sky, Hall setting