Sean Caron <scaron at umich.edu> wrote:
> I remember long ago there used to be a really neat site about the
> VAXstation 3520/3540 machines but it's long gone ...
Any chance you have the URL noted? If so, the WayBackMachine might still
have it.
Noel
Many Thanks for the HP 1000 interface board manual... We have the old
one here at the museum with the 2115, 2116 etc but it has gotten
brittle on the back binding and if we do not have to open it.......
At one time when we would building voice boards to the 2000/1000
series back then we had scored a batch of blank IO proto boards with the
buss tag traces on them.. be interesting to see if I saved any...
Thanks ! Ed# _www.smecc.org_ (http://www.smecc.org)
In a message dated 5/16/2015 3:42:18 P.M. US Mountain Standard Time,
pbirkel at gmail.com writes:
That is a *really* nice document, in so many ways. Thanks for sharing,
and
for the answers to earlier questions :->.
On Thu, May 14, 2015 at 11:31 AM, J. David Bryan <jdbryan at acm.org> wrote:
> On Thursday, May 14, 2015 at 1:46, Paul Birkel wrote:
>
> > What do they recommend on the receiver-end?
>
> LSTTL with a 4.7K pulldown to -2V on the input.
>
>
> > Is the "HP 1000 M/E/F-Series Computers I/O Interfacing Guide"
> > (02109-90006 September 1980) available online somewhere?
>
> I thought I had sent it to Al some years ago, but it's not listed. In
any
> case, I've posted it here:
>
> http://home.earthlink.net/~jdbryan/dropbox/02109-90006_Sep-1980.7z
>
> See chapter 5, pages 5-5 and 5-6.
>
> -- Dave
>
>
All ?
I thought I would pass the attached on to the group. Please let me know if
the attachment (Word doc) doesn?t come through and I?ll send it separately
to those interested. I received the attached email, unsolicited. Looks like
two complete Altair systems for sale for $7,000, with offers considered. No
location is given in the listing but the area code points to Washington
State (Olympia??).
Rich
--
Rich Cini
Collector of Classic Computers
Build Master and lead engineer, Altair32 Emulator
http://www.classiccmp.org/cinihttp://www.classiccmp.org/altair32
From: Richard Cini <rcini at msn.com>
Date: Saturday, May 16, 2015 at 10:54 AM
To: Richard A Cini <rich.cini at verizon.net>
Subject: FW: Altair 8800 Electrical Engineer Estate "lot"
From: ecyclenw at msn.com
To: ecyclenw at msn.com
Subject: Altair 8800 Electrical Engineer Estate "lot"
Date: Fri, 15 May 2015 01:32:57 +0000
Hi,
You are receiving this e-mail due to interest expressed as a collector, on
theantiquecomputer.com.
Please find attached a word document with the information and details of
this Altair 8800 Estate Lot. More photos available.
Also, please pass this information to anyone who may be interested.
Thank You
Dan
Dan Tharp
EcycleNW
dan at ecyclenw.com
ecyclenw at msn.com
Sent from Windows Mail
Am I too late? Still available for sale?
Richard
I really need some cash and some space, so it's time for my Intel Intellec
MDS gear to find a new home. I inherited this kit some years ago, and know
almost nothing about it - in fact, I'm even confused as to the correct
model number; 'experts disagree', it's either an MDS-225 or MDS-800.
It's a large white cube, about 20" on a side, with a CRT, one 8" floppy and
a number of plug-in boards. There is also a blue Intel dual 8" drive, one
seriously heavy-duty keyboard, a few cables and a bevy of 8" floppy discs.
I also have an ICE pod for it, somewhere..
It has never been powered-up once since I've had it, though it was
apparently 'working fine' when retired sometime in the early-mid 1990s.
Cosmetics are very good, it's no ugly duckling by any stretch.
Photos will appear as I'm able to move it to a location with sufficient
light.
*Richard Brewster Main, Esq.*
*Of Counsel*Main Cafe
invention & patent development
Newark, CA 94560
+1 408 409 6246
http://www.maincafe.us/
CONFIDENTIALITY NOTICE: E-mail may contain *attorney-client confidential
information* that is legally privileged. Do not read this e-mail if you are
not the intended recipient. This e-mail transmission, and any documents,
files or previous e-mail messages attached to it may contain confidential
information that is legally privileged. If you are not the intended
recipient, or a person responsible for delivering it to the intended
recipient, you are hereby notified that any disclosure, copying,
distribution or use of any of the information contained in or attached to
this transmission is STRICTLY PROHIBITED. If you have received this
transmission in error, delete it, please immediately notify us by reply
e-mail to mainpatents at gmail.com or contacting us by telephone at
408-409-6246
F.Ulivi,
I have an MDS-225 on a breadboard for easy access. I bought it in
pieces and now getting it going. I believe I may be able to dump all
the EPROMS in my Pro-Log M980 and het hexfiles over USB-232 to my
WINDOWS laptop to email to you.
I just got the Intel 2708 personality module for the Pro-Log and not
sure its working.
On the built in CRT, Intel used the Ball Brothers TV120 with an early
VGA interface. It is TTL with /VERT, HORIZ, and VIDEO. You can wire up
a modern DB25 VGA monitor to the IOC and hook each of R G B through
270 ohm resistors to IOC VIDEO. maybe need to invert the vertical
sync.
Richard
I'm looking for the images of ROMs installed on the IOC (I/O controller)
board of Intel MDS-2 development systems. In particular I'm looking for
the content of the character generator ROM (A19-2708) and of firmware
ROMs (A50 to A53-4x2716). So far I had no success in googling them.
My goal would be to contribute a good emulation of MDS systems to MESS,
especially for what regards the look of the video terminal. Well, this
is the plan, when "real-life" is not inteferring too much...
*Richard Brewster Main, Esq.*
*Of Counsel*Main Cafe
invention & patent development
Newark, CA 94560
+1 408 409 6246
http://www.maincafe.us/
CONFIDENTIALITY NOTICE: E-mail may contain *attorney-client confidential
information* that is legally privileged. Do not read this e-mail if you are
not the intended recipient. This e-mail transmission, and any documents,
files or previous e-mail messages attached to it may contain confidential
information that is legally privileged. If you are not the intended
recipient, or a person responsible for delivering it to the intended
recipient, you are hereby notified that any disclosure, copying,
distribution or use of any of the information contained in or attached to
this transmission is STRICTLY PROHIBITED. If you have received this
transmission in error, delete it, please immediately notify us by reply
e-mail to mainpatents at gmail.com or contacting us by telephone at
408-409-6246
Hi Eric,
I reverse engineered the Intel IOC in my MDS-225 back in 1980 and
designed/programmed the Zendex equivalent. Your project sounds interesting.
I just got a MDS-225 in pieces that I'm getting fired up with DD dual 8"
floppies and ISIS-II.
Got any parts or need any parts?
Richard Main
Newark, CA USA
+1 510-229-9711
I picked up an Olivetti M24 the other day. When I opened it up I found a
"Fox Research LAN Interface" dated 1984. I have not been able to find any
information on this card. It has a make DE-9 connector with only 3 pins
(technically does that make it a DE-3?). Can anyone give me any details of
this interface?
The machine does not have the expansion board, and it is missing one of the
floppy disk drives. It also does not have a hard disk controller. If anyone
has any of these bits going spare I would love to hear from you.
Thanks
Rob
Hi *Dave Mabry,*
*I have an Intel MDS-225 that I'm getting up and running. I have quite a
bit of experience with these from back in 1980's when I developed a lot of
Intel SBC boards and wrote ASM-80 assembler on the MDS. I have a complete
double density dual drive Intel disk for it and will be up and running
ISIS-II on this soon.*
*What parts, software are you looking for? What do you have to sell?*
*Richard Main 510-229-9711*
>> it looks like the backplane blocks .. are cast around them
> From: Brent Hilpert
> all have secured the pin in the housing via some deformation of the metal
> pin, post-insertion; as opposed to moulding the housing around the pin.
> From: Ethan Dicks
> these are cast blocks of plastic with embedded pins.
> From: Jon Elson
> On some of the connectors, the pins are pressed in from the card side.
There appears to be some question as to whether thyy are cast in place,
or inserted.
Actually, I started to wonder about my assertion shortly after I posted it,
and took another look at the backplane. The thing is that the hollows that
the finger contact pins are in are fairly complicated (since they allow the
contact pins to move back and forth, but hold them from going too far), and
I'm really wondering if it would be possible to cast that shape, and then
remove the mold, and also have the pin in there. So I'm wondering if in fact
they weren't inserted post-casting.
> From: Brent Hilpert
> The problem in your situation of course, is getting the remainder of
> the pin out from between the edge connector housing and the backplane
> PCB without having to unsolder the entire connector.
Well, I'm kind of assuming they are inserted from the edge-connector side,
and not the wira-wrap pin side (what with the contact pins being bent, etc on
the edge-connector side), If they _were_ inserted from the wire-wrap pin
side, I'm totally @&@^$#%@&^, there's no way to get that PCB off now.
So in theory, at least, I'd have to de-solder them from the PCB and then try
and push the remaining part back through (after identifying and defeating
whatever the capture mechanism is - which I might not be able to reach with
the PCB in the way). And then I'd have to find replacement pins and put them
in. Both of those sound non-trivial.
(All assuming, of course, that they are inserted post-casting, and not
cast into place... still not sure about that.)
This has assumed a little extra urgency as on closer examination, some of the
pins in the UNIBUS in-out area are clearly very weak - I imagine there's only
a tiny bit of metal holding the contact pin in place, and it could break off
any time. And I won't be so lucky as to have them all be ground pins..
So if one breaks off, the backplane is toast (unless it's the the last thing
on the UNIBUS, it could be kludged - i.e. attach the termination/ pull-up
directly to the wire-wrap pin).
Which I guess is not the end of the world - DD11's aren't _that_ rare...
Noel
