On Tue Apr 26 14:17:26 CDT 2011, Tony Duell wrote:
> If you are really crazy, use containers of salt water with suitable
> electrodes in them :-). Just don't knock them over and spill the liquid
> into the machine under test.
Hmm. A home brew dummy load with variable resistance. (Add salt to taste.)
Martha Stewart meets Forrest Mims. ;-)
T
Dang! Missed the obvious!
Indeed, looks like the monitor was SYSGENed since there is an ANSwer file on the disk labelled SJFB.ANS I don't have the system running at the moment but will boot it again this weekend at latest and check the config but I'm sure that's it.
I suspect the RT-11 copy either has FPU support enabled (which my 11/34 lacks) or one of the many timers (I have one on the DL-11W but that is it). The LSI system is an 11/73A so it is "loaded".
I suppose it is time to SYSGEN a new copy - The SYSGEN.COM and a load of assorted files are already on an MFM drive (as a bootable MSCP device) . I have the SYSGEN manual from bitsavers so I guess it's time to play "seventy questions".
Anything about the 11/34 I need to be aware-of in terms of options? I want SJ, but probably don't need SJ timer support. I'm running it from a dual RX-01 drive so I'll have to keep things to a minimum on this particular system. If I get ambitious later I can try a new "Qniverter" I picked-up to allow the 11/34 to use the LSI-11 disk controllers.
Thanks!
Mark
> Why don't you just create a new "virgin" RT11 boot disk on your LSI?
> E.g.:
> .INIT DX0:
> .COPY DL0:SWAP.SYS DX0:
> .COPY DL0:RT11SJ.SYS DX0:
> .COPY DL0:DX.SYS DX0:
> .COPY DL0:DL.SYS DX0:
> .COPY/BOOT:DX DL0:RT11SJ.SYS DX0:
>
> and then try booting the disk on the other system.
> Or did I miss the posting where you've already mentioned that procedure?
> What happens if you try another monitor, e.g. RT11FB or RT11BL? It may be
> possible that your version of RT11SJ has been SYSGENed for some options in
> your LSI machine. Type SHOW CONF on your LSI and what for the version
> string like "RT-11FB (S) V05.03"; the (S) indicates a SYSGENed monitor.
Professor Mark Csele, P.Eng.
Niagara College, Canada
300 Woodlawn Rd., L-23
Welland, ON, L3C 7L3
(905) 735-2211 x.7629
E-Mail: mcsele at niagarac.on.ca
URL: http://technology.niagarac.on.ca/people/mcsele
Author of "Fundamentals of Light Sources and Lasers", Wiley, 2004
Hi,
does anyone have the manuals (or even scans of them) for the IBM 3287
printer? I'm looking for information regarding setup, configuration and
error codes.
Christian
This news has been all over the Apple II boards and blogosphere today,
so I figured someone should post it here on cctalk. Ryan Suenaga, a
very active and veteran member of the Apple II community, died yesterday
in a hiking accident. He was only in his mid-40s.
Dear Mr. Allain
I read your post on the cctech mailing list at
http://www.classiccmp.org/pipermail/cctech/2003-June/016522.html
I was wondering if you still have the Omron Scy-P5r PLC with you? If yes, I
would like to purchase it from you.
--
Regards
Syed Nauman Shah
>> Any alignment must be totally lost by now. But if I do get it
>> working I
>> can format a disk on it and see if that works. Reading and writing
>> files
>> might be more of a problem, I can't remember if there is any way to
>> create directories and files in the bare OS, or if one needs
>> programs
>> from another disk, in which case I would be out of luck if it is so
>> badly misaligned that it can't read other disks.
>
> Could you connect it up as a second drive? I seem to rememebr there's
> a
> socket for that on the ST (a strange 14 pin DIN socket?). Or test it
> on
> some other machine that uses a standard-ish floppy drive?
I could connect it as a second drive in a PC. I think it is actually a
bog-standard drive.
Connecting a new drive to the ST was dead easy, however most of the old
diskettes that came with the machine seem to be bad. Now I shall have to
try to get the old drive working again.
I thought the head assembly on the old drive might have had bushes for
the guide rod. Not so, they were just holes punched through the sheet
metal...
/Jonas
I am accepting reasonable offers for the following entire IBM Series 1 system:
http://vintagecomputer.net/ibm/Series1/
If no one is interested I will donate it to MARCH's museum
instead. Contact me directly by email
When cabled together this system would I believe function as a
document storage system and communications for a medical
facility. Anyone who knows a thing or two about the Series 1 is
welcome to have access, it's set up and power is available until at
least July. After that I have to move it.
I wish I had more time for it myself. So far I have un-parked the
4962 hard drive, wired the component cables, and tried to access the
control panel. I have a limited knowledge of IBM minicomputers, just
enough to know that these kinds of minicomputers don't just power up
and say READY when you attach a monitor to them. In short the
operational condition is unknown. The individual components power up.
Anyway, here is a list of the components.
qty) Description
2) 6' IBM 4997 Rack Units with shelves to house the processor and peripherals.
1) IBM 4956 Processor
1) Cambex Corp Model 80810 2-tape drive storage device (no tapes)
1) IBM 4962 8" disk drive / Hard Drive (w/ 3 boxes of maint. software)
1) IBM 4967 Hard drive (69kg)
1) IBM 4963 Hard drive (55kg)
1) IBM 4963A Hard drive (55kg)
1) IBM 4978 display station and keyboard (display is bad?)
12) Series I system software/hardware manuals "standard 3-ring binder sized"
20) Series I system software/hardware manuals (tall, blue, with IBM
written on them)
There is documentation for all components, plus service logs,
software documentation, installation instructions, etc. Pretty complete.
Misc. papers and other documentation and receipts.
3 boxes of IBM software on 8" disks, including diagnostics for hardware.
1 box of cables and jacks for additional display stations/terminals
1 box of printer ribbons (no printer)
probably some product literature and period IBM sales circulars, etc.
I believe I also have the modem for this system.
The items are in Wilmington, Delaware minutes from rt 95, about an
hour north of Baltimore, 25 minutes south of Phila Airport. Please
contact me directly, reasonable offers accepted. I will avoid
selling individual components. Pick up preferred, items are near loading area.
Bill
Yes, one can get lucky that way - and I have machines in my personal collection where I have not replaced the filter caps (yet). Component tolerances can allow continued functioning even with significantly degraded components. But if I turn one of those machines on and it doesn't start up, that's my problem. If I turn the key on one of our machines at work, in front of a crowd of people, and it doesn't start up, that's a different story.
Industry studies (work by Cornell Dublier) show that aluminum electrolytic capacitors have a limited life span. (The most common failure mode is not drying out, it is elevated ESR.) Then there have been the various scandals about substandard components. I think it bears consideration that electrolytic capacitors are not one of the most reliable components in our information systems. --- Ian
________________________________________
From: cctalk-bounces at classiccmp.org [cctalk-bounces at classiccmp.org] On Behalf Of Tony Duell [ard at p850ug1.demon.co.uk]
Sent: Sunday, April 24, 2011 11:10 AM
To: cctalk at classiccmp.org
Subject: Re: new here
> cautious sort, disconnect the filter caps and perform a leak-down test, rep=
> lacing parts that fail. If you're really cautious, just replace them - tha=
> t's what we do with power caps if they're over twenty years old. There's a=
> date code on the part. =20
If I did that, I'd have replaced every capactior in every machine I own,
including the machine I am currently typing this on. I haven't. In fact
many of my machines, including ones that are 40 years old, are still
runnign with all their original capacitors.
Yes, capacitors fo fail. I've replaced a number over the years. And they
can fial from just old age if the electrolyte dries up. But in m
experience it's not the problem that some people claim it is.
-tony
I am looking for confirmation that this is a Xerox 8010 / Xerox Star:
http://vintagecomputer.net/xerox/8010/
It's missing the front cover and one of the side panels. I don't have the
monitor or mouse, just what's pictured. Anyone have one of these?
Thanks
Bill Degnan
