Guitar Pedal X - GPX Blog - DryBell's new Module 4 Compressor is inspired by the Dan Armstrong Orange Squeezer while it goes well beyond that with some really clever switching features
Perf and PCB Effects Layouts: Dan Armstrong Orange Squeezer
OS+++ Modified Orange Squeezer – moosapotamus
Dan Armstrong Original Orange Squeezer Compressor Guitar Effects Module Orange | Musician's Friend