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Article #2485

Re: Re: extra "raw" disk drives

#2485
From: LocklearLB
Date: Tue, 21 Oct 1986 13:56
47 lines
2767 bytes
In article <648@chinet.UUCP>, cabbie@chinet.UUCP writes:
> In article <619@imagen.UUCP> turner@imagen.UUCP (D'arc Angel) writes:
> >> 
> >> Paul Swanson of Nite-Lite Systems (617) 663-4221 (BBS line) has done some
> >> interfacing of "foreign" disk drives to the ST.  I think this includes IBM
> >> PC drives (5.25 inch).  He of course would prefer to sell you an interface
> >> rather than telling you how to design one, but he certainly could answer your
> >> questions if he has the time.
> >> 
> >> -John Sangster
> >> jhs@mitre-bedford.arpa
> >
> >it was written up with only 2 omissions in an old issue of antic (i can give
> >you the issue # if you want), the first omission was that the atari
> >disk drives use cmos level signals so you need to stick a buffer chip
> >in between the drives and second you need to set the access time to 6
> >ms. there was a pgm called sixms.prg to do that posted to the net, i
> >have a copy if you need it.
> >-- 
> >----
> I have interfaced the CDC drives that are sold by BG micro and those drives
> (Full height DSDD) require at least 10ms step rate.  Let the buyer beware!
> Until someone come up with a 10ms step rate program,  Those drives are 
> useless on the ST.
> 
> 
> 					Rich Andrews
> 					...ihnp4!chinet!cabbie

I've been using a Teac 5.25" drive for about a year now.  It works flawlessly
without changing the access rate or using a buffer chip. This seems like the
drive to use if you need a 5.25" drive.

If you want to upgrade your original single sided 3.5" Atari drive to a double
sided drive, I have been told that Epson 3.5" drives work quite well.  There are only
two problems.  First, the busy light is on the wrong side.  You'll have to 
remount it, or just listen to the drive if you want to see if it is on. :)
Second, the disk eject button is too short to reach through the Atari drive's
cabinet.  To fix this, you need to replace the eject button on the new drive
with the one from the old drive.  

I am planning on doing this upgrade soon, so I'll let everyone know how it goes. 

Barry Locklear
AT&T Information Systems Labs
Denver, CO 80234
ihnp4!drutx!druhi!lbl
Technical Details
Message-ID: <1171@druhi.UUCP>
Path: arc1-ca.pugleaf.net!utzoo!watmath!clyde!cbatt!ihnp4!drutx!druhi!lbl
References: <8610161411.AA02878@mitre-bedford.ARPA> <619@imagen.UUCP> <648@chinet.UUCP>

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Path: arc1-ca.pugleaf.net!utzoo!watmath!clyde!cbatt!ihnp4!drutx!druhi!lbl
From: lbl@druhi.UUCP (LocklearLB)
Newsgroups: net.micro.atari16
Subject: Re: Re: extra "raw" disk drives
Message-ID: <1171@druhi.UUCP>
Date: Tue, 21-Oct-86 09:56:53 EDT
Article-I.D.: druhi.1171
Posted: Tue Oct 21 09:56:53 1986
Date-Received: Wed, 22-Oct-86 05:03:59 EDT
References: <8610161411.AA02878@mitre-bedford.ARPA> <619@imagen.UUCP> <648@chinet.UUCP>
Organization: AT&T Information System Labs, Denver, Co
Lines: 47
Summary: Teac drives work well