15 Jun
2016
15 Jun
'16
10:44 p.m.
See: http://www.hpl.hp.com/hpjournal/pdfs/IssuePDFs/1977-10.pdf Figure 4
Shows some of those other parts as well in the block diagram. Uses a "HP 21MX
K-Series Computer".
Model 5420A Digital Signal Analyzer.
-----Original Message-----
From: cctalk [mailto:cctalk-bounces at classiccmp.org] On Behalf Of CuriousMarc
Sent: Thursday, June 16, 2016 1:16 AM
To: 'General Discussion: On-Topic and Off-Topic Posts'
Subject: RE: Mystery HP 1000 board
You beat me! You got one hit. How did you search for that? I come up dry...
Marc
-----Original Message-----
From: cctalk [mailto:cctalk-bounces at classiccmp.org] On Behalf Of Pete Lancashire
Sent: Wednesday, June 15, 2016 8:50 PM
To: General Discussion: On-Topic and Off-Topic Posts
Subject: Re: Mystery HP 1000 board
Well there are 20 bits of ALU ....
And this guy has one and some other boards
http://nevadabarry.com/electron.html#HP%20Test%20Equipment
HP 5443
05443-60047
05443-60042
05443-60031 MIOB Interface
05443-60050 Booster Microcode
05443-60057 C (13803F?)
05443-60071 A (22803F)
NO Connection with the site/person/etc .. just passing it on
On Wed, Jun 15, 2016 at 8:00 PM, Jay West <jwest at classiccmp.org> wrote:
I have one of those boards. You sent me an email about
it and I
replied a week ago :)
-----Original Message-----
From: cctalk [mailto:cctalk-bounces at classiccmp.org] On Behalf Of
CuriousMarc
Sent: Wednesday, June 15, 2016 9:49 PM
To: cctalk at classiccmp.org
Subject: Mystery HP 1000 board
Can anyone identify this HP board (see link to pictures)?
https://goo.gl/photos/BBuAV1oozWNSqeUTA
It was at under the main board of a newly acquired HP 1000-E, next to
the firmware board. It says HP 54427-60050 Booster Microcode. It has 5
bitslice SN 74S181 chips at the back. So I surmise maybe it's a late
ALU booster upgrade?
Marc