On Thu, 8 Nov 2001 SUPRDAVE(a)aol.com wrote:
I would think that the only time an alignment would be
required is
when disks written from one drive will not work in another drive
assuming the rotation speed is the same.
Yep. I only ever had that problem maybe once.
I did need to have a drive aligned once in 1987 or so
when for some
reason, both the drive AND the controller card went bad. Not knowing
any better, I tried all my dos3.3 floppies, which hosed the boot
track, rendering them unusable. Never have fixed those disks yet.
probably are still readable too.
As long as only the boot track (presuming track 0) was hosed then your
data is 99.9% likely in tact (unless screwed from some other problem).
Somewhere in my extensive stash of apple goodies, I do
have some
genuine alignment disks but are useless to anyone unless you have an
ocilloscope hooked up and know what you are doing. Anyone can adjust
the rotation speed, however.
Yep, all that is needed is a small screwdriver and a copy of Copy ][+.
I still say the disk ][ was the best disk subsystem
around. fast(er)
and reliable and decent storage I think at 143k.
I agree ;)
Sellam Ismail Vintage Computer Festival
------------------------------------------------------------------------------
International Man of Intrigue and Danger
http://www.vintage.org