I went with the same 12x10X3” box that I used for my power strip.
Unfortunately I screwed up some of my measurements.
1. The hole cut for a filtered IEC jack was too small
2. Three of the holes for the pcb were off by a few millimeters.
3. There are 3 screw holes which I can’t even remember why I added them.
4. Two screw holes for terminal strips were based on the wrong part.
Fortunately I got most of the holes right and am now living with my mistake.
It’s completely noise-free aside from a very slight transformer buzz.
Custom ST35 w/EFB v5
Custom ST35 w/EFB v5