14 Apr
2012
14 Apr
'12
9:55 a.m.
> I've wondered now and then how alignment
disks are created. Does
> anyone here know? Would a Kryoflux be of any use in creating them?
On Sat, 14
Apr 2012, Chuck Guzis wrote:
You need the ability to write a track at a small,
controllable
offset. That's also why they're so bleeding expensive--you can't use
a standard disk duplicator to make them.
I know that that is how the "Dysan Digital Diadnostic Diskette" is made.
With relatively conventional FM or MFM data written out of position.
That really doesn't seem all THAT hard to add a micrometer lead screw to
the head positioner. 'Course trying to do the progressively further off
by sector would be a little harder.
What is the writing on a "REAL" ("analog") alignment disk?
'Twould seem
that that would need a different head.