Shielding the Shure M65 Clone

I ran into a small noise issue with the Shure M65 Phono Preamp so I decided that there was probably some EM interference going on due to the exposed transformer and the open chassis design. To remedy this I designed and printed and EM shield out of a conductive PLA filament which I then covered in a thin layer of copper tape. I attached this to the grounding plate and much to my delight it resolved the vast majority of the signal noise.