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From: gk@kksys.UUCP (Greg Kemnitz)
Newsgroups: comp.sys.ibm.pc
Subject: Re: Adding 3 1/2" drive to IBM AT
Message-ID: <376@kksys.UUCP>
Date: Sun, 20-Sep-87 17:44:03 EDT
Article-I.D.: kksys.376
Posted: Sun Sep 20 17:44:03 1987
Date-Received: Wed, 23-Sep-87 04:46:43 EDT
References: <2889@whuts.UUCP>
Reply-To: gk@kksys.UUCP (0000-Greg Kemnitz)
Organization: K and K Systems, Minneapolis
Lines: 32
Keywords: IBM AT;3 1/2"

In article <2889@whuts.UUCP> 2212msr@whuts.UUCP (ROBIN) writes:
<I currently own an 'old' IBM AT (del 8/84 as 6Mhz machine) which is equipped
<with a Seagate 4051 HD and TWO 5 1/4"-1.2M floppy drives.  For reasons I
<won't go into here, I need to add 3 1/2" drive capability w/o removing
<either of the 5 1/4" drives.  My thoughts run toward an A/B switch
<on the3 drive cable, such that in one psitiom I have A= 5 1/4" and in
<the other A= 3 1/2".
<
<Any thoughts, ideas, sources for 34 line A/B switches, etc. would be greatly
<appreciated.
<
<Max S. Robin
<AT&T Bell Laboratories
<Whippany, NJ 07981
<email:whuts!2212msr
<voice:201-386-6865

We sell a A/B switch which should do what you need -- HOWEVER, I would
like to suggest another approach.  We have set up several systems with
third floppy drives mounted externally, connected via an adapter which
allows the use of four drives simultaneously.  The adapter will allow
drives 3 and 4 to be either internal or external, and is supported by
the driver included in DOS 3.2.

If you would like any additional information, please contact me at the
address or phone number below.

-- 
Greg Kemnitz              |   amdahl \
K and K Systems           |   ihnp4   !meccts!kksys!gk
P.O. Box 41804            |   rutgers/
Plymouth, MN  55441-0804  |  AT&T and clones: (612)475-1527