Waveform Magazine Project 2 - Gateway Oscilloscope - DIY Build

With the summer months on the horizon, we decided to take on a new series of modules or tools for eurorack. This months DIY build is the Waveform Magazine Gateway Oscilloscope; a cheap effective audio visualization tool for your modular rack.
This module is often referred to as “Project #2”.
As part of the DIY series from Waveform Magazine, the Gateway Oscilloscope (as we will call it from this point forward) is an inexpensive alternative to some of the more well known oscilloscopes on the modular marketplace today. One thing is for sure with any oscilloscope, not only is it an useful tool, but it is a lot of fun being able to see the waveforms that you are patching through your system.
Waveform Magazine? What is that?
Until recently, there has been little to no print form magazines that cover modular synthesis. One might be able to find an article here and there, along with a review or two, but there was never a dedicated publication available monthly. Waveform Magazine was the first to take this one and even though its in its infancy stage (only 3 have been released), it is slowly becoming the hot topic of the modular world.
WF Magazine reviews new gear, interviews articles, previews upcoming modules and even has a net DIY project in every edition. This is where the Gateway Oscilloscope was born. It was featured in the Fall 2019 issue of Waveform Magazine and is still currently available via their website. The cool thing about Waveform Magazine is that the first 3 issues were free. You heard right… Free! Starting with Issue #4, they will be charging for a subscription, and you can guarantee that we won’t be missing a single issue!
On with the build…