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From: spear@ihop3.UUCP
Newsgroups: comp.sys.att,unix-pc.general
Subject: Re: Re: 7300 floppy + memory query
Message-ID: <257@ihop3.UUCP>
Date: Wed, 25-Nov-87 09:20:07 EST
Article-I.D.: ihop3.257
Posted: Wed Nov 25 09:20:07 1987
Date-Received: Sun, 29-Nov-87 03:27:42 EST
References: <384@gethen.UUCP>
Organization: AT&T Bell Labs, Naperville, IL
Lines: 26
Xref: utgpu comp.sys.att:1643 unix-pc.general:46

> Xref: ihop3 unix-pc.general:1167
> In article <2848@ihlpf.ATT.COM> spear@ihlpf.ATT.COM (Spearman) writes:
>>First, was I the only person who did not know that the floppy
>>in the 7300 is not PC-compatible.
> You are wrong.  The floppy in mine, and the one specified in the Tech
> Reference Manual, is a dead standard Teac floppy, no different than
> the one I have in my PC.  

I'd be interested in feedback from anyone else who has actually put
an IBM standard floppy in their PC.  Not only did I try a known-good
drive from my 6300 and play with all the jumpers, but I ask an AT&T
serviceman who verified that the 7300 floppy was NOT PC compatible.
However the Teac drive in the 7300 is Teac FD-55B-01-U which is one I recall
as marketed for MSDOS clones.

The jumpers could certainly have been the problem - the naming schemes
of the two letter codes on the jumpers was not the same between the
Teac 7300 and the 6300 floppy drive, so I was just guessing and experimenting.
Maybe someone knows the changes from a standard clone floppy setting?

Also, if the drive is really PC compatible, does that mean that an
after market 3 1/2 inch or an AT drive could be substituted?  Or would
that be beyond the abilities of the controller to handle?
-- 
Steve Spearman  {ihnp4,ethos}!ihop3!spear
Voice: (312) 979-4181