I received the boards a few days ago from Elecrow. I have been using them for a few years and I am pretty happy with the quality and the prices. I usually make my boards fit a 100x100mm square, so that I take advantage of their special prototyping pricing.
This board was an opportunity to test my new footprints for KiCad, since I recently migrated from Eagle (which apparently has been killed by Adobe)
Findings so far:
- For some reason, my large footprints meant to accommodate large Sikorels and PEH capacitors with screw leads are 49mm in diameter, while the actual capacitors are closer to 52mm. I really don’t know why I made this silly mistake. The screw pads are perfect, but unfortunately I cannot fit two capacitors side by side on the board. I will keep those just for snap-in caps.
- The footprints sized for Vishay RN70 and CW so far seem perfect.
- The footprints for the dual TO-247 diodes are probably too far from the edge of the pcb, and would not allow the comfortable mounting to a vertical heatsink while screw caps are attached. I should move them a bit closer to the edge.
- I foolishly have connected one of the mounting screws to the ground plane. I wanted this design to be floating, so this could be a problem.
I will soon test these in my new Technics SL1200MK2 PSU