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From: jc@joker.mil.ufl.edu (Jim Castleberry)
Newsgroups: comp.sys.tandy
Subject: Tandy 6000 speedup mod problems
Message-ID: <1990Dec5.063423.23164@eng.ufl.edu>
Date: 5 Dec 90 06:34:23 GMT
Sender: news@eng.ufl.edu
Distribution: na
Organization: Machine Intelligence Lab, University of Florida
Lines: 17
Originator: jc@joker.mil.ufl.edu

I recently got a copy of a Tandy 6000 hardware mod to boost it up to 12 MHz
(thanks nanook).  (It has since appeared on the 6000 archive at
plains.nodak.edu, if anyone wants it).

Unfortunately, I can't get it to work.  I made the mod in such a way that
I can back it off by putting the old parts back in their sockets and
moving two jumpers.  Everything's still rosy at 8 MHz with the old parts,
but it dies a horrible death with the new parts at either 8 or 12 (not right
away at 8, but it dies all the same).  I tried replacing the new parts with
different ones to no avail.  I have a genuine 68000L12 and 1 meg of 100ns
RAM on a stock Tandy board, so they should be okay.

Anyone have this mod working?  Anyone know what's wrong?  Anyone know where
the mod originated so I can talk to the author?

Thanks,
   Jim