Some 20 odd years after it was decommisioned we finally got our PDP-9 to
boot software off an old DECTape. Advanced Software System version 5A
came up today for the first time on our restored -9.
This after a long and frustrating summer when we spent over 100 man
hours chasing a processor fault which resulted in the execution of the
saved PC value after an interrupt (instead of the word after the saved
PC value). Turned out to be a misaligned delay circuit which caused a
reset signal to arrive late and provoke all sorts of havoc in the
processor while nicely reseting all the tell-tales.
Seems like the memory and processor hardware is quite stable now. We
have two DECtape units attached with two more units availabe to be
attached. Further debug on the DECtapes and learning the software will
be followed by attachemnt of TU20 mag tape units.
If anyone knows of an available (and cheap) large X-Y plotting scope
preferably somewhere in europe we would be very interested in hearing
>from you. We have a graphics controller but no large screen. With the
screen, the DECtapes and the TU20's this is going to be one impressive
We also used the -9 for the first time today to try and recover an image
>from an old Elliott 903 paper tape I was given in the UK recently. Due
to operator error that attempt failed but I fully expect to be able to
get a tape image this weekend.
Hello all. I am looking for MSDOS software from the early 1980's. I have
some leads, but not many. Specifically, what I want is the entire PC-BLUE,
PC-SIG, and any other similar collections. I would prefer to download them
>from someone and burn my own CDs but if you have them on CD-ROM and you are
willing to sell that is fine. Here are what leads I have.
I looked on google for PC-BLUE and found that oak.oakland.edu apparently
had everything but are long gone. I used to download from there in 1997
but apparently there are no full mirrors left. However, ftp.mirror.ac.uk
has several disks but nothing past 1989. I know that there were more than
this by a 1991 post I found from the old simtel20 indicating that volumes
were still being added. I would like the full set, even files into the 1990's.
Regarding PC-SIG, google showed almost nothing at all. I tried every set
of keywords I could think of, but there is very little to be found. Again,
ftp.mirror.ac.uk had quite a bit but cut off at 1989. I know they had at
least 1,000 disks, probably over 2,000. I used to download them from a
local BBS many years ago, so I know they sold a CD-ROM. If I could buy or
download that somehow I would be very happy. They are now out of
business. Amazon might have it but I doubt it since they cannot get them
>from the publisher and have been known to offer items which they did not
Finally, I found another directory called COMUG which I assume was another
user group. Does anyone know if there are any other disks from them
besides those posted? I am in the US. You can write either on or off-list
if you can help. I have no ftp upload space unfortunately. I can use .iso
CD images. Sorry if this is off topic, but the FAQ seems to not be working.
Thanks to the local college boyz, I now have a slightly misused P70 to play
on. The previous owner was kind enough to break off the retaining clips
when he pulled the memory, but other than that it seems to be usable.
Booting without any memory elicts a `211' error early in the POST, and
booting with one or more of 8MB (IIRC) SIMMS gives a 225 error. I did a
little research, and it seems that the max SIMM it'll take is a 2MB parity
part, I know don't have any of those. Anyone happen to have a spare 8MB
kit? Also, I'm looking for the S/370 card for it, if anyone has an extra
they'd like to get rid of. ^_^
It's a small keyboard and 80x8 line display. built in software seems to be a
word processor, spreadsheet, calculator, database (1 text field), Phone
numbers, spell checker. seems to be aimed at the ed market.
I picked it up because there is a legend on the outside that suggests it runs
some kind of BASIC, but the option turned out to be a keyboarding drill.
Anyway, found lots of surface stuff on the web, but I am interested in:
1) what processor
2) pinout of IO port on back
3) Can I add a BASIC (I don't mind if I can junk the WP et all at the same
here's the Place that made it: http://www.perfectsolutions.com
Hey Sellam, what would you want to trade for it? : ^ )
I found a small circuit board marked "Data I/O", "702-1072" and "Plug in Adapter". There is also a paper label on the board that says "910-1347-1 E". It has two 16 pin DIP ICs on it. I can't see their part numbers because they have paper labels on them. The board mounts using three metal standoffs and has a row of 14 pins along the left and right hand edges. Can anyone tell me what it is?
Perhaps you may have some interest in these machines?
Currently have 3 ASR 33's 2 with omni modems, one with relays
1 KSR 33 programable
1 Friden Flexowriter, that I saw as imput to a cray
computer at a computer museum on the web.
The following system is available in New York, NY. Not free but taking
Zenith Data Systems supersPORT SX, model ZWL-0300-10, serial number
039DF001098. In addition, I have (i) two rapid charge batteries, model
ZA-180-85, for the unit, (ii) two Handok model CL40-7601 110 - 240 volt,
50/60 Hz AC power supply units, part number 150410-2, serial numbers
890610730 and 90055756, and (iii) (w) Zenith Data Systems external full
card expansion unit model ZA-3040-EB, serial number 009EE002110.
Reply privately for contact information.
Sellam Ismail Vintage Computer Festival
International Man of Intrigue and Danger http://www.vintage.org
* Old computing resources for business and academia at www.VintageTech.com *
This is a very late reply to the above message (read in 2002!) but I have a
few bits and pieces
of Intel memorabilia loitering in my archives.
Can't remember if I've dumped the 2nd hand PDS I owned, but I've still got
the system discs..
email : jonesthechip(a)logicmagic.co.uk
Got a fellow here offering up an old IBM 5160 PC. If anyone is interested, please contact him directly.
*********** BEGIN FORWARDED MESSAGE ***********
On 29-Aug-02 at 07:05 williamkepler(a)webtv.net <williamkepler(a)webtv.net> wrote:
> You have an antique query on the web about an antique system.......I
>aquired an IBM 5160. If I can't find a modulator for it I will attempt
>to sell it.....interested ?
> It has CGA and the rest of the usuals. 2 5 1/4 floppy drives and
*********** END FORWARDED MESSAGE ***********
Bruce Lane, Owner & Head Hardware Heavy,
Blue Feather Technologies -- http://www.bluefeathertech.com
ARS KC7GR (Formerly WD6EOS) since 12-77 -- kyrrin(a)bluefeathertech.com
"I'll get a life when someone demonstrates that it would be superior
to what I have now..." (Taki Kogoma, aka Gym Z. Quirk)