Christer Palm wrote:
>
> Nicolas Welte wrote:
> >
> > I tested this program for Jochen a while ago, and it worked well on my 1571.
> > The reason why some tracks can't be read is that the head on the second side
> > is set off by a few tracks against the head on the first side, and the
> > mechanical stop prevents the head to go to these tracks.
> >
>
> That sounds very strange! I always thought the CBM drives used standard
> "off-the-shelf" drive mechs. Or does standard mechs also have this
> offset? 5 40-track tracks sound like a pretty big offset.
I just had a look at an old mech, and the upper and lower track are offset by
about 2mm, maybe a little more. This would make, with 48tpi, about 3.7
tracks. After all, 40 tracks at 48tpi are only .83 inch or 21.2mm.
Nicolas
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