Subject: Just for fun... (PDP-8 programming problem)
From: Jonathan Dreyer - Sun BOS PC Distributed Systems <[email-masked]>
To: [email-masked]
Date: Mon, 2 Oct 89 10:39:37 EDT

Write a program that clears all memory in a 4K PDP-8.  When it's "done",
all locations (including where the program used to be) should be zero.
I put "done" in quotes because it obviously won't halt.

Ok, ok, never mind, but it *was* fun back when I was in college!

Date: Mon, 2 Oct 89 10:32:25 -0700
From: "Just boot it." <[email-masked]>
To: "[email-masked]"@decwrl.dec.com
Subject: FOCAL-8 or -11 sources ?

	The sources for both focal '8 and '11 are available through
	DECUS.  Does anyone on this list have them, and if so, would
	you mail them out or make other arrangements to make them
	available ?

	rcs

Date: Mon,  2 Oct 89 20:03:25 EDT
From: "Robert E. Seastrom" <[email-masked]>
Subject:  FOCAL-8 or -11 sources ?
To: "[email-masked]"@MINTAKA.LCS.MIT.EDU
cc: [email-masked]

Yes, I have the sources to FOCAL-8.  You will be most
disappointed to learn that they are hard-copy, but if
you still want them, I can arrange to have copies made,
and sent to you.

                        ---Rob

Date: Mon,  2 Oct 89 23:21:35 EDT
From: "Christopher R. Zach" <[email-masked]>
Subject:  Just for fun... (PDP-8 programming problem)
To: "[email-masked]"@MINTAKA.LCS.MIT.EDU
cc: [email-masked]

John:
	Can we use an 8K pdp-8 and just bomb 1 bank?
							CZ
PS: There was a time when 8K was a lot of memory....

Date: Mon,  2 Oct 89 23:24:40 EDT
From: "Christopher R. Zach" <[email-masked]>
Subject:  FOCAL-8 or -11 sources ?
To: "[email-masked]"@MINTAKA.LCS.MIT.EDU
cc: [email-masked]

RCS:
	You wouldn't happen to have a Paper tape reader? I am sure I have all
the Focal stuff (including the multiuser focal which needed the DF32 drive).
Hey, who knows if any DF32 drives are still around? I am looking for a pair
of them, if anyone knows where any are stashed (if any are still left in
the world...).
							CZ

Date: Tue, 3 Oct 89 09:12:18 CDT
From: George Gonzalez <[email-masked]>
To: "[email-masked]"@MINTAKA.lcs.mit.edu, 
    [email-masked]
Subject: Re:  FOCAL-8 or -11 sources ?
Cc: [email-masked]

Date: Tue,  3 Oct 89 12:50:51 EDT
From: "Robert E. Seastrom" <[email-masked]>
Subject:  Just for fun... (PDP-8 programming problem)
To: [email-masked]
cc: [email-masked],
    "[email-masked]"@MINTAKA.LCS.MIT.EDU

Hmm...  If we filled all of memory with 
01101[page offset of current instruction] (3 is the opcode for DCA,
right?), loaded address 0, and pressed START, it would fill all of
memory with 0s... but I have the feeling that that's not what you had
in mind ;-)  (Start will clear AC on the 8/L, thus insuring that
location 0 contains 0 also)...  Don't tell us the answer yet; I'm
still working on it.

                              ---Rob

Date: Tue, 3 Oct 89 09:55:12 PDT
From: [email-masked]
To: [email-masked]
Subject: Focal-8 or -11 sources
Cc: "[email-masked]"@decwrl.dec.com

I have sources (on PDP-8 Dectape) for the original 4K FOCAL-69, which runs
stand-alone.  I also have sources for the University of Washington FOCAL,
which runs under OS-8.  UW Focal was developed by Jim Van Zee, and may
now be a proprietary product; the version I have is about 10 years old.

I could make copies available on PDP-8 Dectape, at least for FOCAL-69.
We still have two 32K PDP-8/I's (with EAE) in operation here, although
one of these will be decommissioned within the next year.

Bob Kibrick
Lick Observatory
Natural Sciences II
University of California
Santa Cruz, CA 95064-1012
(408)-459-2262

[email-masked]

Date:    Wed, 11 Oct 89 08:12 CDT
From:    [email-masked]
To:      [email-masked]
Subject: Looking for 8/e system components.

Hello gentlemen.  This is my first posting to this list:

I am currently configuring one of my personal PDP8/e systems to
run OS/8.  This system has an Omnibus expansion chassis,  32kW
of core,  EAE,  and 2 RK05 disks.  At this stage,  I find
myself looking for the following items to complete my system:

      - Fortran IV for OS/8 on DECtape,  paper-tape, or floppy
      - an LQP (Letter Quality Printer) Omnibus Interface
      - an RX8-E Omnibus RX floppy disk controller
      - a TD8-E Omnibus DECtape controller

I am also looking for the following items for other projects:

      - 8kW or 4kW Omnibus core memory
      - Omnibus prototyping boards (W966, W967, etc...)
      - any Quad-size proto boards (preferably wirewrap style)

If anyone out there has some of these items they would be willing
to part with,  send e-mail,  and we can work out a swap for
equipment or cash.

Many thanks,
                        Richard F. Lukes
                        Computer Science Department
                        University of Manitoba
Date: 13 Oct 89 13:03 GMT+0100
From: ulrich nielsen <[email-masked]>
To: [email-masked]
Subject: Subscription

as an old friend of PDP8's (running the PDP 8e ser.no. 13 in 1971) I would 
like to subscribe for membership
Ulrich Nielsen at Hahn-Meitner-Institut Berlin

Posted-Date: Fri, 13 Oct 89 12:29:47 -0700
To: PDP8-Lovers-Request <[email-masked]>
Cc: [email-masked], [email-masked]
Subject: Re: BIG sale
Date: Fri, 13 Oct 89 12:29:47 -0700
From: [email-masked]

For sale: PDP8 the model in the plastic bubble
          PDP8/E no memory, HS paper tape, EAE, Large RK disk
          I can't recall the exact name RK8 or something. Anyway,
          it uses the same disk pack as the RK05 and has a 
          controller with more than 100 'flip chips'.
          
Call Rod Shepstone 213 649-4480 and make offer. 
Date: Wed, 18 Oct 89 23:14:52 EDT
From: Michael D'Alessandro <[email-masked]>
To: [email-masked]
Subject: Wanted: a PDP-8

I am interested in acquiring an old PDP-8, for purposes of restoring it
and then maintaining it, in operating condition.  One of my hobbies is
collecting old hardware, and restoring it to working condition.  If you know
of any PDP-8's that are on the scrapheap, where one finds PDP-8 scrapheaps,
or if you have an old PDP-8 lying around the lab that you can't bear to
throw out for memory's sake; drop me a line.  I'd love to get my hands on
one of the beasts, I'd surely give it a good home.

Date: 22-Oct-89 19:41:51 +0100
From: Johnny Billquist <[email-masked]>
To: [email-masked]
Subject: Software...

I'm desperately looking for some programs for OS/8.
More specifically: RL02 device driver, RL02 formatter
and also RL01 formatter.

Anybody who has any of this software, please drop me a line,
or preferrably, drop me the software by e-mail.

	Johnny
   --------

Received: from AI.AI.MIT.EDU (CHAOS 3130) by MC.LCS.MIT.EDU 25 Oct 89 01:20:45 EDT
Date: Wed, 25 Oct 89 01:24:29 EDT
From: "Robert E. Seastrom" <[email-masked]>
Subject:  [djji: Wanted: Old PDP-8's]
To: [email-masked]
Message-ID: <[email-masked]>

Date: 17 Oct 89 15:31:09 CDT (Tue)
From: Dave Iverson <djji at aicchi.chi.aic.com>
To:   rs at eddie.mit.edu
Re:   Wanted: Old PDP-8's
Newsgroups: comp.sys.dec
References: <[email-masked]>
Organization: Analysts International; Chicago Branch

(With apologies, from a user striking "r" for the second time...)
They tell me, Robert, that you will need this ...
[email-masked]
And thank you for running PDP8-LOVERS newsletter!
 David JJ Iverson

Received: from AI.AI.MIT.EDU (CHAOS 3130) by MC.LCS.MIT.EDU 25 Oct 89 01:28:34 EDT
Date: Wed, 25 Oct 89 01:32:20 EDT
From: "Robert E. Seastrom" <[email-masked]>
Subject:  [djji: Wanted: Old PDP-8's]
To: [email-masked]
Message-ID: <[email-masked]>

Date: 17 Oct 89 14:05:33 CDT (Tue)
From: Dave Iverson <djji at aicchi.chi.aic.com>
To:   rs at eddie.mit.edu
Re:   Wanted: Old PDP-8's
Newsgroups: comp.sys.dec
References: <[email-masked]>
Organization: Analysts International; Chicago Brankh

(With apologies to all from a first-time "r" user, hoping this goes straight
to Robert)

Yes, please! Do add my path to the PDP8-LOVERS newsletter.  There is at this
very moment a PDP-8 and a DEC-TAPE lurking in my closet,
having been promised that they will one day again see active service.
We will keep in touch.
  David JJ Iverson

Posted-Date: Wed, 25 Oct 89 07:55:37 -0700
To: PDP8-Lovers-Request <[email-masked]>
Cc: [email-masked], [email-masked]
Subject: Re: FORTRAN IV - GRAPHICS
Date: Wed, 25 Oct 89 07:55:37 -0700
From: [email-masked]

I'm wondering if anybody does FORTRAN IV. I use an enhanced version
done by Steve Bsech. Also, I have  Tektronics compatable graphics
which is interactive. I found a place which repairs the FPP8A with-
out which I would probably not do FORTRAN IV on my '8'. The place
is called Efficient Field Service (508 251-7800). They also repair
other PDP8 boards. 
Date: Wed, 25 Oct 89 13:49:45 EDT
From: "Robert E. Seastrom" <[email-masked]>
Subject:  FORTRAN IV - GRAPHICS
To: [email-masked]
cc: [email-masked], 
    [email-masked], [email-masked]

Will they repair 3-digit M-series logic boards? (like the M220, which
is used as an accumulator in the 8/I and 8/L)  How do their prices look?

                                        ---Rob

To: [email-masked]
Subject: Re: FORTRAN IV - GRAPHICS 
Date: Wed, 25 Oct 89 16:04:27 EDT
From: [email-masked]

As I recall, it would seem trivial to repair any of the digital logic
8/I and 8/L boards by simply replacing a handful of SSI chips (74xx).
You could do it pretty blindly with an excellent chance of success
IF you're good at removing DIPs from circuit boards. Since those were
single-sided boards you'll have to be careful about the pads lifting,
in which case simply clip all of the package leads (14/16) and then
remove each separately. Install a low-profile socket (for next time ...).

I've made many reparis and mods to 8/L's over the years by this method
without any problems. Also, since the circuitry is so simple on a card,
you can easily do fault analysis in single-step mode from the backplane
(wire-wrap) alone -- no extender board is required and all you need is
a level indicator (logic low/high) and a latch (did a pulse pass?). A
nice environment to learn hardware repair ...

The analog components (i.e. memory drivers and sensors) are another
matter entirely ...

paul
Date: Fri, 27 Oct 89 10:08:48 EDT
From: "Robert E. Seastrom" <[email-masked]>
Subject:  Software...
To: [email-masked]
cc: [email-masked]

> I'm desperately looking for some programs for OS/8.
> More specifically: RL02 device driver, RL02 formatter
> and also RL01 formatter.

You can't format RL drives, can you?  I thought they came pre-formatted
from the factory.

                                        ---Rob

Received: from AI.AI.MIT.EDU (CHAOS 3130) by MC.LCS.MIT.EDU 27 Oct 89 10:08:46 EDT
Date: Fri, 27 Oct 89 10:12:47 EDT
From: "Robert E. Seastrom" <[email-masked]>
Subject:  Software...
To: [email-masked]
cc: [email-masked]
Message-ID: <[email-masked]>

> I'm desperately looking for some programs for OS/8.
> More specifically: RL02 device driver, RL02 formatter
> and also RL01 formatter.

You can't format RL drives, can you?  I thought they came pre-formatted
from the factory.

                                        ---Rob