Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Path: utzoo!mnetor!seismo!columbia!rutgers!caip!clyde!cbatt!ihnp4!chinet!cabbie
From: cabbie@chinet.UUCP (Richard Andrews)
Newsgroups: net.micro.atari16
Subject: Re: Re: extra "raw" disk drives
Message-ID: <658@chinet.UUCP>
Date: Wed, 22-Oct-86 15:17:36 EDT
Article-I.D.: chinet.658
Posted: Wed Oct 22 15:17:36 1986
Date-Received: Thu, 23-Oct-86 04:49:44 EDT
References: <8610161411.AA02878@mitre-bedford.ARPA> <619@imagen.UUCP> <648@chinet.UUCP> <1171@druhi.UUCP>
Reply-To: cabbie@chinet.UUCP (Richard Andrews)
Organization: chi-net, Public Access UN*X, Chicago IL
Lines: 53

In article <1171@druhi.UUCP> lbl@druhi.UUCP (LocklearLB) writes:
>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

	The 3.5 drives that I have are both epson made.  Original equipment
from Atari.
				Rich Andrews
				ihnp4!chinet!cabbie