21 May
2006
21 May
'06
4:49 p.m.
hi Richard
I think the 450 is at least double sided if not double density.
In any case, a 360K drive can be used as a single sided single
density disk, without any issues that I know of. The 400 was
a 35 track machine but you can get more tracks on the
360K drives. These are 40 tracks.
I've been using some 360K drives on my H89 for years as 35
track single sided single density but also hard sectored.
Does the VeriFloppy support MFM?
Dwight
From: "Richard A. Cini" <rcini at
optonline.net>
Reply-To: "General Discussion: On-Topic and Off-Topic
Posts"<cctalk at classiccmp.org>
To: "'General Discussion: On-Topic and Off-Topic
Posts'"<cctalk at classiccmp.org>
Subject: Building new S100 floppy system
Date: Sun, 21 May 2006 12:06:11 -0400
All:
I have several random parts I'm going to pull together to
build
a "new" floppy system for my IMSAI. I have an SD Sales Versafloppy
controller card (which used the FD1771B controller) and several 5.25"
floppy
drives (all soft sectored). The Versafloppy manual indicates that it will
work with a Shugart SA400/450. When I look up the specs on the SA400, it
indicates that the unformatted capacity is 109.6k and the formatted
capacity
is 81k. I didn't read the entire manual but this look like SSSD specs.
I of course don't have any floppy drives like this but I have
several original PC drives (TM-100 and others) and several 360k drives of
various types.
The question is this: can I use these later drives on this
controller without problems? If there are problems, what might they be?
Thanks.
Rich
Rich Cini
Collector of classic computers
Build Master for the Altair32 Emulation Project
Web site: <http://highgate.comm.sfu.ca/~rcini/classiccmp/>
http://highgate.comm.sfu.ca/~rcini/classiccmp/
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