27 Feb
2003
27 Feb
'03
4:06 p.m.
----- Original Message -----
From: "Jonathan Engdahl" <j.r.engdahl(a)adelphia.net>
To: <cctech(a)classiccmp.org>
Sent: Thursday, February 27, 2003 11:33 PM
Subject: Re: decserver 550 in Kansas City
Here is the webpage where I tell exactly how to mod
the DECserver CPU into
an 11/53.
http://users.safeaccess.com/engdahl/KDJ11.htm
In short, you have to reburn the ROMs, and solder in a 1K resistor. On the
old (.5 meg) boards, you also have to cut a jumper.
<SNIP>
Jonathan, what I want to know is how do you connect the RX50 and
RD(whatever) hard drive to the RQDX3? Did you use standard DEC parts or did
you make something? If you used DEC parts, could you please post a list of
what is needed? I have the RX50, KDJ11, DEQNA, images of the 11/53 ROMS, and
am searching for a suitable hard drive. Anyone reading this with a decent
(size, quality, and price) hard drive for sale feel free to contact me off
list...
Thanks so much for posting the original stuff - seeing that is what got me
back into PDP-11 related systems. My other systems are VAX and Alpha, all
running OpenVMS.
Stuart Johnson