My PDP-11/20 includes a M7251 KG11-A board, which appears to be a CRC helper
option for communications software. I've been able to find some diagnostic
code listings for it, but no manuals. Does anyone out there have any manuals
for it, either scanned or dead-tree? If I can't download it, then I would
like to either buy-for-cheap it or borrow-and-copy it. Thanks!
--
Jeffrey Sharp
Wow,
thats a tough one.
i agree with Sellam, it does look like a four phase
panel.
but - fps did not use a flat rack panel - they used a
bezel and the board bolted to it.
i wonder if it is fps and perhaps an iv/60,70 or 80 or
an early prototype of one of them.
if the seller looked at the pcb for a name - that may
end our mystery - fps screened "fps","four phase
systems inc" or "motorola information systems"
or the pcb.
motorola information systems bought out fps and made
some boards for the fps systems.
Bill
Message: 40
Date: Fri, 14 Feb 2003 17:31:54 -0800 (PST)
From: Vintage Computer Festival <vcf(a)siconic.com>
To: <cctalk(a)classiccmp.org>
Subject: Re: What computer is this front panel for?
Reply-To: cctech(a)classiccmp.org
On Fri, 14 Feb 2003, Kevin Schoedel wrote:
> > (0) It's got 24 bits, or maybe 18 + 6 if you look
closely.
>
> I think 24, since the numbers don't restart. Bit 0
is at the right,
> which might rule out some machines.
>
> I'm pretty sure the first word at the top is
"DISPLAY"; the next
> might be "REGISTER", but I'm not certain. I think
the word that
> labels bits 18-21 might be "INSTRUCTION". Can anyone
think of a
> machine with a 4-bit opcode and 18-bit address? I
think the next
> word (first of two labelling 0-17) is the same.
Now that I've looked at it more, it almost looks like
a Four Phase
Systems
front panel. It can't remember now, but I believe it
was either a 16-
or 18-bit machine (18-bits would make sense with
regards to these front
panels).
--
Sellam Ismail
Vintage Computer
Festival
i wonder if it is fps and perhaps an iv/60,70 or 80
I have a IV/70 reference manual, and the front panel is quite
different. Four Phase also numbered their bits in big-endian order.
I'm still guessing they're for Harris H-series.
I ran across a number of Displaywriter cpu's and keyboards on the weekend as
well as a bunch of IBM 4972 terminals.
I think I may find Series/1 parts in further searching through this
interesting site.
I didn't know what the floppy drives for the Displaywriters looked like
until I checked with Google after coming home. I believe I saw some of them
as well.
I also picked up some manuals and diagnostic diskettes for the IBM Office
System 6. Anybody need them? The actual System 6 is there but has been out
in the rain too long to be of much interest unless someone needs something
specific (and waterproof) from it.
Quite a lot of other stuff as well, which I'll list as, if, and when I get
to it.
If anyone is interested in any of these things, I'll try to get them put
away in safe storage. I'd be willing to hold on to them until Dayton. The
owner is very reasonable with his selling prices.
regards, Dan Cohoe
Thanks to your help, I now know what I need - I need the three headed
cable with two 13W3 connectors and one DB-19. ( this thing -
http://www.obsoletecomputermuseum.org/nextcolor/monitor_cable.jpg ) I
have scoured the internet looking for the pinout of this cable, but to
no avail. I did find some information about the monochrome slabs, but
it doesn't help me very much. There doesn't seem to be much out there
about the color NeXTStations at all. Anyway, if anyone has the pinout
of that monitor cable, it would be much appreciated. It shouldn't be
too hard to add the extra connector to the old Sun monitor cable I
already have. All the pins on the Sun cable do go straight through, and
there are wires for all of them, I checked with a multimeter. Thanks!
Ian Primus
ian_primus(a)yahoo.com
> Does anyone know of a source for (or have) enough PDP-8 (the original
> "straight") front panel switches to fill in a front panel? I am working
> on a replica of the PDP-8 (non-functional) for a museum exhibit, and need
> to find either a source for switches or some that look close enough.
In the interests of keeping viable machines still functioning, and given that
this is for a non-functional museum display, it might be worth looking into
actually making something - painted wood, vacuum-formed plastic, whatever.
Just a thought. I'm not a DEC person (don't have the space!) and these switches
might be common as muck for all I know. But I'd hate to think parts were being
used on a static display that could be used to keep hardware running
elsewhere...
cheers
Jules
Everything you'll ever need on one web page
>from News and Sport to Email and Music Charts
http://uk.my.yahoo.com
Okay, I'll bite.
Questions (from a non-DEC mperson):
Where is it?
Where can I find information about the VS3000? Google pointed me to tons of
sites regarding the 3100, 2000, 4000, etc., but nothing specific to the 3000.
Why? Is the 3000 a dog?
To the classiccmp DEC-heads: is the 3000 a good starting point for someone who's
curious about VAXen? If not, why not, and what would be a better place to
begin?
TIA --
Glen Goodwin
Orlando, FL USA
> Anybody have any interest in a VaxStation 3000?
> Looks clean, no monitor or kbd.
Is there a replacement for the Berg connectors?
I am talking about the 100mil spacing, dual inline connectors that had
individually insertable, crimp contacts. The AMP MT connectors look like
a replacement. Does anybody have experience with this?
I am working on an DEC RX01/RX02 emulator for my pdp-8/e and want to run
a cable about 20ft. I was thinking about using 4 runs of cat5 twisted
cable and the individually contacts would be quite convenient.
-chuck
> To the classiccmp DEC-heads: is the 3000 a good starting point
> for someone who's curious about VAXen? If not, why not, and
> what would be a better place to begin?
If you want to get started with VAXen, any flavor of VAXstation
3100 would be a great place to start. A basic VS3100 (aka model 30)
would be an adequate, very cheap way to start. They'll do everything
you'd need to begin learning about the VAX and VMS, Ultrix, or *BSD.
These early models are limited in terms of expansion and speed by
current standards, however, and if you have the money or opportunity
you might want to look for something faster like a VS3100 m76, or
any VS4000.
To learn more about the different VAX models, I'd take a look at
the NetBSD/VAX page http://www.netbsd.org/Ports/vax and look into the
different model descriptions.
To get licenses and media for running VMS, go to the DECUS/Encompass
OpenVMS Hobbyist Pages at http://www.montagar.com/hobbyist/index.html
You'll have to join Encompass, but that's free. And you'll need the
serial number from your VAX/Alpha.
If you check the archives for this mailing list, or hit Google Groups
archives for comp.sys.dec and comp.os.vms, you'll find all kinds of
info and links to web sites.
Good luck, and have fun!
--Steve.
----- Original Message -----
From: "Jay West" <jwest(a)classiccmp.org>
To: <cctalk(a)classiccmp.org>
Sent: Sunday, February 16, 2003 3:23 PM
Subject: Re: Emulated Peripherals
> UGGGGG!!!!!
>
> Ok, what moderator let that obvious advertisement through??? I know it
> wasn't me.
>
> Sorry folks, I'll try to ensure that doesn't happen again.
>
> Jay West
> List Admin
