Ok, I have somewhere between 350-400 old computers in my shed that I have promised my partner that I am going to repair/rebuild.
Part of this is potentially realigning 40 track floppy disks, to do this there are special alignment disks that were used.
An 80 track alignment disk would also be nice but much less important as only a couple of machines I have use them.
If anyone is interested they are mostly TRS-80s, CPM based machines (Osbourne, Kaypro, etc) though I have a large collection of sinclair, amstrad,commodore,atari,acorn,panasonic,etc etc etc.
I have a growing collection of service manuals, spare parts, including new floppy drives, CPUs, RAM but getting some diagnostic tools / software for some of these old machines would be useful.
Cheers
Keith Whitehead
sir1963@gmail.com