1 Nov
2007
1 Nov
'07
1:02 p.m.
Message: 1
Date: Wed, 31 Oct 2007 11:39:58 -0600
From: "Brad Midgley" <bmidgley(a)gmail.com>
Subject: [pups] pdp11 in Utah
To: pups(a)minnie.tuhs.org
Message-ID:
<d89ddf300710311039q134e47b4q5f515efb22860d43(a)mail.gmail.com>
Content-Type: text/plain; charset=ISO-8859-1
Hi
I have a pdp11 (about the size of a 6u rackmount) free if anyone is
interested.
This sounds like a Digital BA-11 of some sort. It could be something
as early as a pdp 11/20, 11/05, 11/34, 11/35, or as late as a 11/24
or 11/44 -- possibly others.
--
Brad
------------------------------
Message: 2
Date: Wed, 31 Oct 2007 16:44:50 -0400
From: "Gregg Levine" <gregg.drwho8(a)gmail.com>
Subject: Re: [pups] pdp11 in Utah
To: "Brad Midgley" <bmidgley(a)gmail.com>
Cc: pups(a)minnie.tuhs.org
Message-ID:
<18d205ed0710311344g13a53c8bo9fbdd03b73ef4ae1(a)mail.gmail.com>
Content-Type: text/plain; charset=ISO-8859-1
On 10/31/07, Brad Midgley <bmidgley(a)gmail.com> wrote:
Not easy or cheap. It's bulky, heavy and would usually require 2
persons to move around. I've moved various of my pdp11s around and
it's always been hard work. Stashing a case of beer in the bottom of
an H960 is good incentive for assistants.
Hi
I have a pdp11 (about the size of a 6u rackmount) free if anyone
is interested.
--
Brad
_______________________________________________
PUPS mailing list
PUPS(a)minnie.tuhs.org
https://minnie.tuhs.org/mailman/listinfo/pups
Hello!
Brad, I am interested, although the space in my apartment would be the
big issue. The problem is that I am in an apartment in NYC, Queens to
be exact. Just how hard would it be to send it to me? If its both cost
and space excessive then perhaps others on the list would be
interested.
Oh and which model is this fellow? I am looking for a PDP-11/53, and
have been for many years.
e-Bay?
--
Gregg C Levine gregg.drwho8(a)gmail.com
"This signature was once found posting rude
messages in English in the Moscow subway."
[snip]
--
Milo Velimirović, Unix Computer Network Administrator
608-785-6618 Office - 608-386-2817 Cell
University of Wisconsin - La Crosse
La Crosse, Wisconsin 54601 USA 43 48 48 N 91 13 53 W
--
There's a reason Dennis Ritchie and Ken Thompson have been awarded
the U.S. National Medal of Technology (1998) and are fellows of the
Computer History Museum Online. Dave Cutler hasn't and isn't.
"You are not expected to understand this."
1 Nov
1 Nov
2:34 p.m.
New subject: [pups] pdp11 in Utah
hey
This sounds like a Digital BA-11 of some sort. It
could be something
as early as a pdp 11/20, 11/05, 11/34, 11/35, or as late as a 11/24
or 11/44 -- possibly others.
I think the toggle switches on the front need to be set right and the
terminal settings need to be guessed at to talk over serial. The pics
probably don't reveal much but they're easier than describing it.
http://www.xmission.com/~bmidgley/front.jpg
http://www.xmission.com/~bmidgley/back.jpg
I don't have the inclination to tear it open.
--
Brad
3:15 p.m.
New subject: [pups] pdp11 in Utah
This is a BA23 box with what looks like an early PDP-11/23 in it. You
have it upside down on the photo, so it is best to turn it over, or else
the power supply will burn out because of overheating. The power switch
should be at the top. It has a RD53 70 MB Micropolis harddrive and a
TK50 95MB tape drive. Since it has four serial ports, one of which is
the console, I think it has a CPU card without a serial console port on
it, which makes it an early one. In those cases a separate four port
serial card was installed, with the first port set to the console
address. I have such a system in my collection.
Kees
Brad Midgley wrote:
hey
This sounds like a Digital BA-11 of some sort. It
could be something
as early as a pdp 11/20, 11/05, 11/34, 11/35, or as late as a 11/24
or 11/44 -- possibly others.
I think the toggle switches on the front need to be set right and the
terminal settings need to be guessed at to talk over serial. The pics
probably don't reveal much but they're easier than describing it.
http://www.xmission.com/~bmidgley/front.jpg
http://www.xmission.com/~bmidgley/back.jpg
I don't have the inclination to tear it open.
3:27 p.m.
New subject: [pups] pdp11 in Utah
It's an 11/23 or 11/73 in a BA23 box (assuming it's not actually a
MicroVAX, that is :-). A nice system for running 2.11 or 2.9BSD, but
nothing rare. If you open the card cage and read the module numbers
(they'll be "M" and four digits) off the edges of the cards, then we can
tell you exactly what it is.
BTW, I assume you know that you have it upside down ...
Bob Armstrong
3:34 p.m.
New subject: [pups] pdp11 in Utah
I should have paid more attention - since it doesn't appear to have an CPU
control panel in the back, then we can guess that it must be a KDF11A 11/23
CPU and the four serial ports that you see are a DLV11J. No way of knowing
whether it's a real 11/23 or a 11/23+ without reading the M number off the
CPU card. It probably also has a BDV11, some amount of memory, a RQDX1 and
of course a TK/TQK50.
Bob
4:28 p.m.
New subject: [pups] pdp11 in Utah
Hello!
(Regular address time.)
Yes I agree from your photos he is standing on his head. And judging from
everyone else's descriptions, he's slightly larger then the others who live
here.
Have there been any other takers?
--
Gregg C Levine hansolofalcon(a)worldnet.att.net
"The Force will be with you always." Obi-Wan Kenobi
-----Original Message-----
From: pups-bounces(a)minnie.tuhs.org [mailto:pups-bounces@minnie.tuhs.org]
On Behalf
Of Kees Stravers
Sent: Thursday, November 01, 2007 11:16 AM
To: Brad Midgley
Cc: Milo Velimirovic; pups(a)minnie.tuhs.org
Subject: Re: [pups] pdp11 in Utah
This is a BA23 box with what looks like an early PDP-11/23 in it. You
have it upside down on the photo, so it is best to turn it over, or else
the power supply will burn out because of overheating. The power switch
should be at the top. It has a RD53 70 MB Micropolis harddrive and a
TK50 95MB tape drive. Since it has four serial ports, one of which is
the console, I think it has a CPU card without a serial console port on
it, which makes it an early one. In those cases a separate four port
serial card was installed, with the first port set to the console
address. I have such a system in my collection.
Kees
Brad Midgley wrote:
hey
_______________________________________________
PUPS mailing list
PUPS(a)minnie.tuhs.org
https://minnie.tuhs.org/mailman/listinfo/pups This sounds like a Digital BA-11 of some sort. It
could be something
as early as a pdp 11/20, 11/05, 11/34, 11/35, or as late as a 11/24
or 11/44 -- possibly others.
I think the toggle switches on the front need to be set right and the
terminal settings need to be guessed at to talk over serial. The pics
probably don't reveal much but they're easier than describing it.
http://www.xmission.com/~bmidgley/front.jpg
http://www.xmission.com/~bmidgley/back.jpg
I don't have the inclination to tear it open.
2 Nov
2 Nov
10:07 p.m.
New subject: [pups] pdp11 in Utah
On Thu, 1 Nov 2007 08:34:24 -0700
"Robert Armstrong" <bob(a)jfcl.com> wrote:
I should have paid more attention - since it
doesn't appear to have
an CPU
control panel in the back, then we can guess that it must be a KDF11A
11/23 CPU and the four serial ports that you see are a DLV11J.
There is also the
M8192 KDJ11 / 11/73 CPU. It is a dual with QBus card
like the M8186 and intended as a upgrade for the M8186. The M8192 has no
console SLU nor ROM. I have such a M8192 in my 11/73, that lives in a
BA23...
--
tschüß,
Jochen
Homepage: http://www.unixag-kl.fh-kl.de/~jkunz/
6028
days inactive
6029
days old
6 comments
6 participants
participants (6)
-
Brad Midgley -
Gregg C Levine -
Jochen Kunz -
Kees Stravers -
Milo Velimirovic -
Robert Armstrong