I finally made this one
I've been wanting to find a simple way of explaining what actually happens to a guitar signal as it moves through pedals and, especially, through the different stages of an amplifier.
Check out the video here:
So I built an app to visualise it, and then made a video around it.
It's deliberately simple, but I think it could be really useful if you've ever wondered why your gear behaves the way it does.
And you can play with the free app here: