specs for Dysam 224/2A alignment disks?

From: Pete Turnbull <pete_at_dunnington.u-net.com>
Date: Wed Oct 9 14:22:01 2002

On Oct 9, 8:57, Joe wrote:
> Does anyone know the specs for these disks? Where the cat's eye pattern
is located? How many sectors and tracks they have, etc etc?

They don't have sectors and tracks in the usual sense. Track 16 (on a
48tpi drive; track 32 on a 96tpi drive) has a cat's-eyes pattern. Track 01
or track 34 (02 or 68 on 96tpi) has an index burst pattern (a burst of
signal which is 200 microseconds after the index hole, assuming the speed
is correct).

-- 
Pete						Peter Turnbull
						Network Manager
						University of York
Received on Wed Oct 09 2002 - 14:22:01 BST

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