I used to have an out-phased Danish 8-bit computer as a hobby machine back in the 90's. It had two external 8" floppy drives, and I have kept the old floppies. Now I'd like to salvage my old projects, and therefore have gotten access to a similar machine at the local computer museum.
Unfortunately the B: drive is not working well so I investigated if another A: could be made into a B:. Findings:
The unit is basically a YD-174 8" drive with a power supply - https://datamuseum.dk/bits/30001084
The cable is a straight mapping to the drive connector, and optionally on to the next drive. To my untrained eye it is a straight pin mapping on the connector on the machine to the drive connector.
The selection of the drive is done by shortening one of four pairs of pins in the upper right corner of the print at the bottom of the drive (they are upside down on the photo), and only that (I might be wrong on this). The A drives had pair 1 shortened, the B drive had pair 2 shortened.
Unfortunately the spare A: drive did not work well when converted to B:. I forgot to see if it worked as it should before tinkering, so I do not know if I missed something or the drive was broken all along.
Now I am considering options. My guess is that any drive that works the same as this drive (same connector) could be a replacement. Does such drives still exist? Any other thoughts?