On 01/04/2014 02:48 PM, John Robertson wrote:
I'm looking for a service disc for the 3.5"
(IBM-XT/AT vintage) drives
(not 5-14") - does anyone have one for sale? Ideally this is the
original as they came with ondisc faults for part of the testing
procedure AIR.
Not the original, but Accurite has both digital (use software) and
analog (use a 'scope) alignment disks.
http://www.accurite.com
Not cheap, but I've never seen anyone offering a cheap alignment disk.
FWIW
--Chuck