vco340 – Super-Freq

Doboz VCO340 Build

February 26, 2023 by Mitchell

I built a pair of Doboz VCO340 VCOs. These are based around the CEM3340 chip, which was used in Yamaha DX7, Prophet and other famous synths from the 80s. Here are my notes for the build for anyone interested in building these VCOs for themselves. The project comes as two PCBs and an aluminum front … Read more

Doboz VCO340 progress

August 20, 2022August 19, 2022 by Mitchell

Made a little progress on the Doboz VCO340 today. Check out my previous post for more info about the VCO340. Tl;dr it’s an 8hp VCO based on the CEM 3340. i’m working on two at the moment.