Path: utzoo!attcan!uunet!lll-winken!lll-tis!helios.ee.lbl.gov!nosc!ucsd!ucsdhub!hp-sdd!hplabs!hpl-opus!hpccc!hp-sde!hpfcdc!hpldola!ritchie
From: ritchie@hpldola.HP.COM (Dave Ritchie)
Newsgroups: comp.sys.amiga
Subject: Re: 1.2meg floppy on an Amiga?
Message-ID: <11800003@hpldola.HP.COM>
Date: 24 Jul 88 23:27:59 GMT
References: <8807101910.AA02141@jade.berkeley.edu>
Organization: HP Elec. Design Div. -ColoSpgs
Lines: 16

>I could get a 1.2meg 5.25" drive (used) for very little money.
>Is there anyway I could interface it to my Amiga?  I don't care if
>I'd have to mount it under the FFS or the SFS just as long as I'd
>have that much more disk space.  It would certainly be enough for
>an "external C: directory" (so to speak).

  Probably impossible... The 1.2M mode on PC floppies is clocked
at the same rate as used in 8" drives (in fact, 1.2M drives have been
used by the CP/M crowd to replace 8" units). Unless there is a way to
make an Amiga clock data 2X faster, I don't any way of getting this to
work. However, it should be fairly easy to hook up a 96 tpi (80 track)
drive to give you 800K on 51/4" disks.
				Dave
P.S. One of the early issues of Amazing had details on how to hook this 
up. Also, I think that the 1.2Meg Drives can be used the same as a standard
96 tpi drive by asserting the density select signal in an appropriate fashion.