Neato! But looks simple as hell. Just what is it trying to troubleshoot? That your disk drive is receiving power? Seems more can go wrong between the connections, this board and floppy cables for something like this to be very reliable.
I see the "kit" even includes these super long PCB stand-offs, to ensure things are even more wobbly. :lol:
..and two power connectors? Just to make sure you didn't blow something up the first time? :laughing: