test-drb October 2001

test-drb@ccmp.vtda.org

259 participants
770 discussions

by LFessen106＠aol.com

I think this sort of thing would be great! -Linc Fessenden In The Beginning there was nothing, which exploded - Yeah right... Calculating in binary code is as easy as 01,10,11.

22 years, 7 months

HP 85 stuff

by abrahama＠netvision.net.il

we are looking to buy 30-50 pcs 3m dc-100a magnetic tape cartridge. please advise if you can recomaned us from where to buy. best rgds a. abraham ab-ad tech&eng ltd israel tel: 972-9-7660932 fax: 972-9-7660933 e-mail: abrahama(a)netvision.net.il

22 years, 7 months

VLB SCSI?

by mhstein＠usa.net

Well, I'm not sure that the S-100 "standard" was all that rigidly adhered to either, not to mention that everything else was proprietary at that time (not to mention IBM's infamous Slot 8, PS/1's and MCA, non-standard memory modules, etc.)... New PSU fans are still abundantly available up here in Toronto; if ya really need one, or a complete PSU (especially an odd-sized one) or anything else for an old PC, drop me a line. mike -----------------Original Message--------------- Date: Sat, 27 Oct 2001 17:19:50 -0600 From: "Richard Erlacher" <edick(a)idcomm.com> Subject: Re: VLB SCSI? <snip> because IBM no longer provided a firm ISA-equipped standard that everyone else could clone, there was nothing but chaos, and that's the way it's been ever since. The whole concept of "standard" was corrupted in the course of this evolutionary step, and it was a step into the quagmire we're all swimming in today. <snip> <snip> BTW, if that "bulky old PSU" still works, I'd happily relieve you of the fan and PSU board, and pay you for the freight, except for where you're located. I find them harder and harder to get, <snip>

22 years, 7 months

ATEX?

by pechter＠ureach.com

---- On Sat, 27 Oct 2001, Chris (mythtech(a)Mac.com) wrote: > >Does anyone know anything about an ATEX system? > > Ok... ignore me. I over zealously posted this question to the list > because you people are just so damn smart. > > If I had bothered to even LOOK for myself, I would have found ATEX.com, > > which even has a press release mentioning how The Record (the paper my > friend works at) has been a user of theirs for over 25 years. > > So I think I found at least a strong pointer in the right direction. > (Although, if anyone has a list of commands an ATEX system accepts, that > > would also be helpful... however, it seems they have a number of > different systems available) > > Sorry for wasting the bandwidth. > > -chris > > <http://www.mythtech.net> > > > > This wouldn't happen to have been the Bergen Record... Used to work for one of their papers as a reporter back before I got into PDP11's at DEC. -- Bill Pechter Systems Administrator uReach Technologies 732-335-5432 (Work) 877-661-2126 (Fax)

22 years, 7 months

unknown SRAM chips

by jdonogh1＠prodigy.net

Anybody have pinouts for these ICs - I think they are some kind of SRAM. Thanks. TMM2068AP-45 HM6147HP-35

22 years, 7 months

How to disassemble an HSC90?

by gunther＠aurora.regenstrief.org

Hi, has anyone of you ever disassembled an HSC cabinet? I am looking pretty stupid right now. It's not the first piece of DEC iron equipment that I have moved in pieces, I did two VAX6000 and one TU81+. But this one is different. While being half-height like the TU81, it's quite a bit deeper. The side-walls appear to be just locked at the bottom and then hooked such that one can lift it up and off, like the TU81's side walls. However, they do not move no matter how hard I try. I don't find any screws holding them, though. And with the sidewalls on, I cannot remove the top-cover either. So, I was hoping I could at least take it into two pieces by moving the whole core out in one piece. Apparently that central unit is just screwed on the front, like a rack-mount device. Indeed I can move it out quite far. But then it stops at a protruding piece of the backplane circuit board! There seems to be no way to move that core all the way out other than by removing the backplane circuite board. And I'm not going to do that. Other DEC equipment was quite straight forward to disassemble, but this one beats the auto-assembies in difficulty level. I appreciate every advice. My suspicion is that the sidewalls are indeed removable, but mine are just stuck. Someone seen it? regards -Gunther -- Gunther Schadow, M.D., Ph.D. gschadow(a)regenstrief.org Medical Information Scientist Regenstrief Institute for Health Care Adjunct Assistant Professor Indiana University School of Medicine tel:1(317)630-7960 http://aurora.regenstrief.org

22 years, 7 months

Price guide for vintage computers

by SUPRDAVE＠aol.com

In a message dated 10/28/01 10:50:27 PM Eastern Standard Time, vze2wsvr(a)verizon.net writes: << One day your collectionwill be sold off, as you can't take it with you. Don't you want to get the most from your collection/investment? Eric >> I would think that most of us collect for reasons OTHER than specifically for monetary value... Collecting anything almost always is a piss-poor investment. There are better ways to invest money. -- DB Young Team OS/2 old computers, hot rod pinto and more at: www.nothingtodo.org

22 years, 7 months

first step getting VAX 6000-400 booted ...

by Antonio.Carlini＠riverstonenet.com

> Gunther Schadow wrote: > > it still doesn't work. I booted again VMS from TK (takes hours) Why not load up VMS at least for now - it should boot somewhat more quickly! (Althoug, quite worryingly, so should a TK50-based standalone backup!) >trying various combinations of hardware and no success. I have >given the RA90 a device address of 1. I have tried it on both >the KDB50 and the KDM70 without success. Now I am wondering >whether the SDI cable crossover issue is the problem? But >why can Geoff run his RA90 in the basement of his 6000? > >The specifications clearly say that you can do this: > >KDB50---->VAXbulkhead---->SA800bulkhead---->RA90 > >and Geoff does this > >KDB50---->VAXbulkhead---->RA90. Does he? I recall him saying that he has an RA9x in the bottom of his 6000 but I do not recall him stating that he used an even number of cables to do this. >So, the swapping issue seems more complicated than just >an uneven number of SDI cables! But I did exactly what >Geoff did! Or did he do it differently? How? May be there >are two sorts of SDI cables with or without cross-over? AFAIK, *all* SDI cables are the same. Even never works, odd works if everything else is right. > However, VMS never detects any actual drive. So how could I > possibly test this link between KDB50 and drive. It could be > any of this: > > - KDB50 SDI interface damaged but in a way that is not > detected by the self-test > - KDB50 backplane cabling not screwed on tightly enough > - SDI cabling broken > - SDI cabling mismatched (crossover issue) > - RA90 SDI interface damaged but in a way that is not > detected by the self-test > >Is there any resident test that will check the drive/host >interaction without requiring me to wait for another VMS >boot cycle. Each attempt at rewiring and rebooting costs me >about one hour for the VMS to boot from TK again so I need >to keep this minimal. OK. If standalone backup does not see the drive before you get to the $ prompt then something is clearly wrong (it should report a set of available drives, one of which should be DUAn: where n is the unit number). Check the drive first. Press the TEST switch - the TEST light should come on. Press the FAULT switch and *all* lights should come on. Now you know the lights work - press the TEST switch to leave test mode. You can run a set of drive tests as follows: - Power up: you'll setle with a display of R AB - Deselect A & B - press TEST - press Write Protect Now the display is T 00 with the rightmost 0 flashing - Use A & B to select a test number - Start the test by pressing Write Protect The display changes to S NN Once the test has finished the display changes to C NN - Stop the test by pressing A or B - Press TEST to leave test mode. One suggested set of diags is: - Spin *down* the drive - Select T 60 - Press Write Protect to start the test - The display does something like: S 60 LOT C 60 T 00 - T 60 has not done anything - it will simply loop the next test. - Select T 00 - Press Write Protect This will run a set of diags repeatedly. Leave to simmer for 5 minutes. Repeat the above with the drive spun up. (It performs a different set of diags). If all that uncovers no fault, there is a good chance that your drive is OK. You have tried a KDB50 and a KDM70 - assuming those are installed according to the manual, and the processor can see them, then that leaves just the cabling. If you have a KDM70, I would try to use that rather than the KDB50 since that way you do not depend on a working VAXBI bus. >Do we know the pinouts and signal patterns of the SDI (and >BTW the KLESI) so that I oculd use my scope to detect if >the wiring is O.K.? I didn't find pinouts and signals in >the KDB50, RA9x user manual (or the KLESI user manual >respectively). I've never come across a broken SDI cable, but it may be worthwhile doing a simple continuity check - each should be eight cables (four differential signals IIRC). Antonio

22 years, 7 months

[OT] New toy...

by ajp166＠bellatlantic.net

An aside and definatly OTis a lot of that found its way into RTTY and a lot of those old M15s and ASR33s printed it. Allison -----Original Message----- From: Greg Ewing <greg(a)cosc.canterbury.ac.nz> To: classiccmp(a)classiccmp.org <classiccmp(a)classiccmp.org> Date: Sunday, October 28, 2001 8:43 PM Subject: Re: [OT] New toy... >John Lawson: > >> FB OM YR SIGS 599 RPT 599 QSL VIA BURO TNX ES 73 DE KB6SCO > >pete(a)dunnington.u-net.com (Pete Turnbull): > >> It's (mostly standard) radio ham CW (continuous wave) abbreviations, used >> to save keying too much morse. > >To those dismayed at the mangulations of language being >used by some people in email these days, this just goes >to show that there's nothing new under the sun. :-) > >Greg Ewing, Computer Science Dept, +--------------------------------------+ >University of Canterbury, | A citizen of NewZealandCorp, a | >Christchurch, New Zealand | wholly-owned subsidiary of USA Inc. | >greg(a)cosc.canterbury.ac.nz +--------------------------------------+

22 years, 7 months

TOPS, OS or network?

by healyzh＠aracnet.com

> TOPS the OS vs TOPS the network, are they related? If you're wanting to know about TOPS-10 or TOPS-20 then I recommend my PDP-10 emulation web page as a starting point: http://www.aracnet.com/~healyzh/pdp10emu.html If you're wanting to know about the network, isn't that some sort of ancient Macintosh thing? Zane

22 years, 7 months

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test-drb October 2001