Date   : Fri, 21 Mar 1986 23:53:10 GMT
From   : Tom Keller <mc68020%gilbbs.uucp@BRL.ARPA>
Subject: Re: Shugart Disk Drive Alignment

In article <813@well.UUCP>, tyger@well.UUCP (Richard A Childers) writes:
> a metal diskette with master tracks, made out of metal, instead of floppy
> material - a hardware reference point by which the disk heads are aligned.
> The standard 77 track, 8 inch, single density IBM 3740/1D format for which
> these drives were made for.

   No, the alignment diskette is not made of metal, it is made of very 
ordinary mylar, like any other diskette.  The nature and placement of the
signals recorded *ON* the diskette, however, are quite special.

   If you contact Verbatim Corpoation, I believe they will sell you an 8"
alignment diskette.  Expect to pay between $50 and $100 for it, however.
After that, all you need is the service manual for the drive, so you'll know
which test points to monitor for the "cats-eye" image used to align the head.

-- 

===================================

Disclaimer:  I hereby disclaim any and all responsibility for disclaimers.

tom keller
{ihnp4, dual}!ptsfa!gilbbs!mc68020

(* we may not be big, but we're small! *)