Playstation Flanger Design?

Here is one that I discovered hiding down at the bottom of my storage drawers! It's back from my circuit bending/noise production days. It's basically an old circuit bent DOD FX75B Flanger that has been modified to use an old Playstation controller to allow you to modify the crazy sounds that the unit can produce. I haven't played with this thing for years but I'll fire it up and try get some sound samples from it! They're crazy and not exactly the standard "Flange" tone but they are fun for playing with...