Xref: utzoo comp.sys.dec:3611 alt.folklore.computers:4157 misc.wanted:10336
Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!yale!spock!lancelot
From: lancelot@spock.UUCP (Thor Lancelot Simon)
Newsgroups: comp.sys.dec,alt.folklore.computers,comp.unix.2bsd,misc.wanted
Subject: Looking for DCJ-11 Chipset
Keywords: DCJ-11,21-17677,21-17679,PDP-11/73,PDP-11/83,PDP-11/84
Message-ID: <1990Jul19.200159.19436@spock.UUCP>
Date: 19 Jul 90 20:01:59 GMT
Reply-To: lancelot@spock.UUCP (Thor Lancelot Simon)
Organization: Choate Rosemary Hall, Wallingford CT
Lines: 30

First off, I'm quite sorry for the big Newsgroups: line, but I wanted to hit
anybody who might have this rather hard to find chipset.  I'm looking for a DEC
chipset internally called the DCJ-11-XX, where XX was a two-letter code unique
to each speed rating, though -KA indicated a prototype set with two 15Mhz chips
and documentation.  The proper chip numbers were 21-17677 for the data chip and
21-17679 for the control chip.  These chips were used in the KDJ-11 processor 
modules, which were used in the PDP-11/73, 11/83, and 11/84 computers.

I have tried a number of sources for these chips, but have been unable to 
locate them.  I know that some version of these chips was produced as late as
1988, as I have a DEC brochure, "Digital's Chip Family ; Semiconductor Products
for the Realtime Environment," which lists the DCJ-11.  The chips are billed as
 "A complete implementation of the PDP-11 procesor".  A number of DEC sales
reps couldn't find these chips, and though DECdirect finally identified the
chips I was talking about, they said that none were availiable. I don't know of
any compatibles ever being produced, and I tried a used chip distributor who
couldn't find the chips in question.  I am fairly certain that they are no
longer in production.  If anybody reading this has these chips, I will pay
reasonable prices for them, though they are not very useful to me without some 
type of documentation.  Please send mail to me as lancelot@spock.UUCP,
simon@cs.columbia.edu, or DEC Easynet addresses ctoavx::simon or
greper::lancelot.  Thanks a lot.

Thor Simon
(A wanna-be PDP-11 hacker saddled with a plethora of fried processors...)

*******************************************************************************
*Thor Simon             * Okay, just a little pin-prick...There'll be no more-*
*lancelot@spock.UUCP    * Aieeeeaaaugh!-but you may feel a little _sick_.     *
*uunet!hsi!yale!lancelot*   ---Pink Floyd                                     *