Hello,
I have two CBM 8250 dual floppy drives and both had bad ROMs. Luckily, one had a bad 901887-01 (UL1) and the other had a bad 901888-01 (UH1). I was able to get one drive working properly. I recreated both of the ROMs with two MCM69766C EPROMs but they don't work. When turned on, the...