Just noted that my reply to Dave Corbins post on PDP8 emails, went to the
list AND to Dave Corbin separately.
Some emails I get from this list have Reply To: "cctalk" .
Others include Reply To: "cctalk" and person who posted it also.
???
Ed K.
At 04:21 PM 10/2/2004, you wrote:
>The following exchange has just taken place regarding the PDP-8 items just
>listed on e-bay. Though some people here might be interested..
I saw the same thing but noted that it had no front panel.
What are you complaining about?
He's done serious collectors a favor.
The guy thinks he'll get more money that way.
Hey, that's the American way, though I think he's wrong.
If you want to put an 8 together, the parts will likely go for a lot less
than a whole box, even sans the front panel.
I bought a stack of 8A boards last week for $100.
The last PDP8 that sold on eBay was over $1300 IIRC.
Putting a whole (even without front panel) PDP8 on eBay would make a real
bidding war and drive the price way up.
You'd have a lot of casual lunk heads bidding on it.
With pieces, only someone knowledgeable will be interested in bidding.
The problem with parting it out is if you get 2 of the 3 parts needed, and
then some nitwit bids the world on the 3rd piece you're SOL. I think that
happened to someone on the list recently bidding on some PDP8 parts.
Should make things interesting. :-)
Ed K.
On Oct 2 2004, 13:47, Richard A. Cini wrote:
> Does anyone have a functional copy of the Cromemco SpaceWar
program
> that was in the Dazzler manual? I have a PDF of the manual, which has
a hex
> dump of it, but OCRing it has proven to been a royal pain.
I stha t PDF available anywhere? I have a Dazzler but no manual.
> Ideally what I need is a straight binary file. It would be
about
> 3.3k long. If someone can assist with this, I'd appreciate it.
If OCR is a pain (and I can well believe that) why not just retype it?
Even though it's a bit tedious, and would need careful checking, 3.3K
isn't too bad, and it's probably quicker than fixing a poor OCR. I
know; I was the person who re-typed the 60K of the original TREK73 from
some pretty awful photocopies, when no machine-readable version could
be found. I set it up on a copy stand beside my machine, and typed
half-hour or one-hour stints in the evenings when I had nothing much
better to do, for a couple of weeks. 3.3K wouldn't take long, even if
it is hex.
--
Pete Peter Turnbull
Network Manager
University of York
The following exchange has just taken place regarding the PDP-8 items just
listed on e-bay. Though some people here might be interested..
----- Original Message -----
From: dvcorbin(a)optonline.net <blocked::mailto:dvcorbin@optonline.net>
To: burgyman41(a)bellsouth.net <blocked::mailto:burgyman41@bellsouth.net>
Sent: Saturday, October 02, 2004 8:30 AM
Subject: Question for item #5128002772 - DEC PDP-8 COMPUTER CHASSIS/RACK
with POWER SUPPLY
It appears that you are "parting out" some model of CNC machine (possibly a
punch). I am really questioning why the computer (PDP-8) was not listed as a
single item (which typically can be placed back into operation). When the
items are split like this it often indicates that there was something
seriously worng with the unit as a whole, this MAY indicate that many of the
partes themselves are damaged. Any information or history gladly
appreciated.
_____
From: Bill [mailto:burgyman41@bellsouth.net]
Sent: Saturday, October 02, 2004 10:15 AM
To: dvcorbin(a)optonline.net
Subject: Re: Question for item #5128002772 - DEC PDP-8 COMPUTER CHASSIS/RACK
with POWER SUPPLY
Yes, this particular PDP-8 was removed from a CNC machine tool. A K&T
horizontal machining center to be exact. It had been purchased by my
customer, a machine shop, from one of his customers, a large company that
was downsizing. Some where in the transition from one to the other I am
told, part of the system software and most of the documentation was lost.
After some period of frustration at not being able to use the machine they
contacted us to quote on retrofiting it with a conventional CNC control. We
removed the PDP-8 and replaced it with a Fagor model 8050M and set the old
computer on a shelf in our warehouse where it sat for about 10 years until I
closed the business and must now dispose of many items that I didn't have
the heart to throw away. I decided to sell it in three separate groups of
parts after observing the selling activity of other DEC items on ebay.
Without a front panel my feeling is that it's attraction as a complete
computer would be limited. As to someone putting it back in service after
all these years, why would anyone want to do that?
Hope I answered your concerns,
Bill
----------------------------------------------------------------------------
------------------
Thanks for the response. Believe it or not, there are a significant number
of people dedicated to the restoration (and operation) of the older
computers, not just DEC/PDP stuff, but old IBM, Honeywell, Hewlett Packard,
and all of the rest. There are also a number of musuems that are dedicated
to this (their budgets are very limited, but many donations are tax
deductable!).
I am award that many CNC machines did not have the front panel (although a
number that used PDP-8/M's DID!). While the individual parts are usefully as
spares and replacements, too many of them end up being turned into "ART" and
destroyed from a restoration point of view. Also many of the machines (not
so much the PDP-8) required various tweaks to the boards to get them to play
together or work in a specific backplane. This is why a complete (or near
complete system is much more desirable).
I see that you are closing your shop, but I hope you will pass this
information on to ANYONE who may have access to old computer and electronic
equipment. Feel free to use me as a point of contact, or I can provide the
names of collectors pretty much anywhere in the world [including one in
Antartica!]
Earier this year I was at a convention [Vintage Computer Festival] where one
of the original developer of the original developers of the Univac was
giving a presentation [he is over 80]. It turns out that hist wife and he
were selling their house, and it looked like all of his notebooks, and other
documentation from the 1950's thru the 1970's was going to be "dumpstered".
Fortunately arrangements were made with a computer musuem in California [the
conference was in Boston!] to archive all of this ir-replacable stuff.
>From a sellers point of view, there is limited cash value. As I indicated
earlier most of the interested parties are either individuals or musuems
running on very tight budgets. I do find it intersting that most people
understand the collecting and restoration of items such as old cars, but are
very suprised to find that there are people interested in vintage computers.
Good luck in your sale, I hope this message will provide some valuable
information, and you can help prevent other classic hardware [and even more
DOCUMENTATION and SOFTWARE] from going to the scrappers, or straight to the
dumps.
David V. Corbin
Sayville, NY
1-632-244-8487
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Hi,
I just picked up a Convex C220 and wonder who else might have
such a beast at home. Unfortunately I'm lacking the documentation and
operating system (I think it is was called ConvexOS) but it is
still very cool to see that machine. Lots of IPI and SMD drives,
heavy duty power supplies. If some could help me with any related Convex
material especially any Operating & Maintenance manuals - that would be very
nice.
Cheers,
Marc
Hello, all:
Does anyone have a functional copy of the Cromemco SpaceWar program
that was in the Dazzler manual? I have a PDF of the manual, which has a hex
dump of it, but OCRing it has proven to been a royal pain.
Ideally what I need is a straight binary file. It would be about
3.3k long. If someone can assist with this, I'd appreciate it. I'm testing
some new "hardware" in the Altair32 Emulator.
Thanks.
Rich
Rich Cini
Collector of classic computers
Build Master for the Altair32 Emulation Project
Web site: http://highgate.comm.sfu.ca/~rcini/classiccmp/
/************************************************************/
Hi Folks,
I'm helping a friend install an art exhibition at
Truckee Meadows Community College in Reno, NV.
One of the pieces is run by a 386 computer running
MS-DOS, it's been in storage for three years, and
its CMOS data is gone. Need to borrow a monochrome
monitor and an AT-type keyboard with the DIN rather
than PS/2 connector, just for an hour to get it working
again (once it's set up it runs without them).
As an alternative to the mono monitor, an ISA-bus VGA
adapter would be just as good.
Is there anyone in the area who could help? Could you
email me directly (brian(a)quarterbyte.com)? I'll check
email periodically today.
Thanks!
Brian
=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
_| _| _| Brian Knittel
_| _| _| Quarterbyte Systems, Inc.
_| _| _| Tel: 1-510-559-7930
_| _| _| Fax: 1-510-525-6889
_| _| _| Email: brian(a)quarterbyte.com
_| _| _| http://www.quarterbyte.com
Are there any mechanisms to throttle simh's CPU usage? I'd use it a
lot more, but frankly my 11/53 is *quieter* than my PC or my G5 are with
simh running.
Both machines have load-based fans (a _bunch_ of them). They're
near-silent at normal loads, but simh jacks CPU usage to 100% even when
it's idle. That heats things up and I have a turbine in my lap.
Doc
I can't seem to find any pictures on DEC 6330 or DEC 6300 computers via
goggling. Anyone have a picture of these beasts? I may have a line on
getting one of each....
Jay
Hello,
A friend gave me his first computer to go in my collection.
Its a Challenger C4P. I do have the original manuals etc.
And of course my friend for information.
What I am looking for however is additional information,
websites etc devoted to it. I have the cassette based
version. The first question would be details on the
floppy disk version. IE can I upgrade mine. If not,
sources for programs for the cassette based unit.
Also I remember a program to simulate the cassette player
by using a PC with a sound card. Any one know if that one?
Or should I just make wav files and use media player?
For one thing, I would like a terminal emulation
program for it.
Thanks
Max at
