Heathkit H-11 restoration questions

From: CLASSICCMP_at_trailing-edge.com <(CLASSICCMP_at_trailing-edge.com)>
Date: Tue Oct 5 07:50:50 1999

>Anywho, in the Qbus -11 family of 11/23s there are distinct members that
>are different. If that wasn't clear what is?

Oh, I agree with you there. Things get even worse when you go to the
11/73 family - there at least three dozen different boards
all based on the same J11 chipset that's in the 11/73. And some of those
boards are identified by DEC as 11/73's if used with non-PMI memory, and
are identified by DEC as 11/83's if used with PMI memory! And within
a given board etch, there are different designations depending on
the rev level of the J11 chip installed and the frequency of the crystal
that's installed.

-- 
 Tim Shoppa                        Email: shoppa_at_trailing-edge.com
 Trailing Edge Technology          WWW:   http://www.trailing-edge.com/
 7328 Bradley Blvd		   Voice: 301-767-5917
 Bethesda, MD, USA 20817           Fax:   301-767-5927
Received on Tue Oct 05 1999 - 07:50:50 BST

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