Path: utzoo!attcan!uunet!cs.utexas.edu!sdd.hp.com!ucsd!nosc!halibut.nosc.mil!koziarz
From: koziarz@halibut.nosc.mil (Walter A. Koziarz)
Newsgroups: comp.os.cpm
Subject: Re: 3.5" on 8" Controller?
Message-ID: <2113@nosc.NOSC.MIL>
Date: 10 Apr 90 17:24:25 GMT
References: <54671@bbn.COM> <1990Apr10.062350.29895@diku.dk>
Sender: nobody@nosc.NOSC.MIL
Reply-To: koziarz@halibut.nosc.mil.UUCP (Walter A. Koziarz)
Organization: Naval Ocean Systems Center, San Diego
Lines: 20

In article <1990Apr10.062350.29895@diku.dk> jensting@skinfaxe.diku.dk (Jens Tingleff) writes:
>
>The difference that I know of, is that 3.5" drives use different
>pull-up resistors (1 KOhm for 3.5", 300Ohm for 8" ??). This means that
>you might not get away with quite the same length of cable.. .
>Other than that, it should be a breeze (given that you can figure out the
>settings of the dip-switches).
>
>	Jens
>


I would be incredibly grateful if anyone having success at this e-mail me some
insight.  I am having a devil of a time dealing with timing.  The 3.5s rotate
at 300 rpm and the 8s (and 5.25 hds) rotate at 360rpm.  My system is a Zenith
Z-100 and I'm using a stock Z-207 floppy (5.25 & 8) controller.

Many thanks!!!

Walt K.