28 Feb
2015
28 Feb
'15
10:14 a.m.
----- Original Message -----
From: "Eric Smith" <spacewar at gmail.com>
To: "General Discussion: On-Topic and Off-Topic
Posts" <cctalk at classiccmp.org>
Sent: Saturday, February 28, 2015 4:05 AM
Subject: Re: 3.5" floppy failure mode? Hub not
attached to media.
----- Reply -----
Are you saying that it actually stepped in and out
during a rotation to follow the eccentricity?
m
On Feb 27, 2015 12:58 PM, "Chuck Guzis"
<cclist at sydex.com> wrote:
...
I'm not
sure that the "fine" stepper was used
other than to bring the head initially
on-track.
That is, I'm not at all sure that it
compensated
for any eccentricity.
They wouldn't have needed full-blown embedded
servo for that. They went to a
lot of expense to have embedded servo tracking
because it was actually
necessary.