test-drb May 2011

test-drb@ccmp.vtda.org

162 participants
224 discussions

by hp-fix＠xs4all.nl

I'm not making a lot of progress, was using my time to fix the Citroen DS replacing thegearbox in it and overhauling the steering cylinder and fixing a lot of little items which you encounter when working on a 44 year old car. It's a little like classic computing, if you don't touch it everything keeps working, but if ....etc. Citroen used a rubber based wire insulation for the DS and Pallas models between 1965 and 1968. This kind of insulation hardens over time and corrodes the copper wires, in the Safari I have, this wiring isn't used for the main wiring harness (lucky me:-) but they used it for smaller components like the wiper engine wiring and ignition resistor wiring etc.. Real fun and lots of fuses ;-) To come back to the HP 9830 I did find some time to connect the LA to the datapath board and look at the Carry and ALU signals The carry doesn't change while the processor is running it's test cycle, the QC and AC lines seems to be consistent to the processor state. So I think I have to look at the timing of U12B and at the BCD mode X2. I'll get it running .. some day -Rik > -----Oorspronkelijk bericht----- > Van: cctalk-bounces at classiccmp.org [mailto:cctalk-bounces at classiccmp.org] > Namens Tony Duell > Verzonden: zondag 15 mei 2011 18:57 > Aan: cctalk at classiccmp.org > Onderwerp: Re: Bad ebay experiance with ebay seller : sammyslave1 > > > At last I recieved my items after they were held in customs .. > > And of cause I payed them.. > > Excellent! > > IIRC one of the devices was an HP59405 HPIB interface for the 9820/9830. > You'll ahve fun with that (I speak from experience!), all you need to do is fix the > 9830. How are you getting on with that BTW? > > -tony

13 years, 7 months

What is the status of Mentec? was: Re: pdp11 CPU on S100 board?

by chd＠chdickman.com

This thread begs the perennial question: What is the status of Mentec Inc? Who owns rights to the PDP-11 and the Digital Equipment operating system for that architecture? Some on the list have acknowledged PDP-11 related contact with Mentec in the recent past. If I was a licensed user of RT-11 and I wanted to change the terms of the license, how would I do that? I have no direct knowledge of Mentec so I did some online searching, below are my results. -chuck ------------------------ Some Googling shows: Mentec Inc. 13 Hampshire Drive Hudson, NH?03051 United States Phone: 603-883-7711 Fax: 603-883-7799 www.mentec.com Phone is disconnected. Link goes back to Mentec International in Ireland which I think was the parent of Mentec Inc. ------------------------ A search of corporations in New Hampshire finds this record: Date: 5/11/2011 Filed Documents (Annual Report History, View Images, etc.) Business Name History Name Name Type MENTEC, INC. Legal MENTEC, INC. Home State Corporation - Foreign - Information Business ID: 277927 Status: Admin. Suspension Entity Creation Date: 10/9/1997 Dissolve Date: 11/30/1998 State of Business.: DE Principal Office Address: % WINIFRED S GILL 20 INDUSTRIAL PK DR NASHUA NH 03062 Principal Mailing Address: No Address Last Annual Report Filed Date: Last Annual Report Filed: 0 Registered Agent Agent Name: Gill, Winifred Office Address: 20 INDUSTRIAL PK DR NASHUA NH 03062 Mailing Address: ------------------------ The two addresses are about 3 miles apart. ------------------------ Another entity at: DAYBREAK SOFTWARE INC 20 INDUSTRIAL PK DR NASHUA NH 03062 Which seems to still exist: http://www.daybreak-sw.com/ ------------------------ The building at: 13 Hampshire Drive Hudson, NH 03051 It is half occupied and the rest is available for rent. At least part of the address is a printing company.

13 years, 7 months

Fan Fole Paper

by jhfinedp3k＠compsys.to

I have about a dozen boxes of fan fold paper. Most are 9 1/2" by 11". The sides with the holes for the sprockets tear off leaving a clean sheet of 8 1/2" by 11". I an in Toronto. Is there any interest these days in fan fold paper. I suspect that the cost of shipping is more than the paper is worth, so local pickup only. If there is no interest, I will dispose of the paper in June. Jerome Fine

13 years, 7 months

TRS80 PT210 printing terminal serial board

by dgriffi＠cs.csubak.edu

I recently completed a PCB layout for a serial board for the TRS-80 PT210 printing terminal. The primary intended means of connecting to a host to this is an accoustic coupling modem. If you want to use RS232 serial, you need an optional board. These boards have since become very hard to find, so I used the info I found in the service manual to make my own. See http://batchpcb.com/index.php/Products/59707 to get your own made. -- David Griffith dgriffi at cs.csubak.edu A: Because it fouls the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting. Q: What is the most annoying thing in e-mail?

13 years, 7 months

Variac and reforming caps...

by geoffr＠zipcon.net

For general use on old personal computer systems, S100, Kaypro, etc.... Would a 5A variac be sufficient? And is there any write ups anywhere on how to use the variac when powering up a system that hasn?t been powered up in > 10 years?

13 years, 7 months

Bad ebay experiance with ebay seller : sammyslave1

by hp-fix＠xs4all.nl

I have had a very bad experience with sammyslave1, I bought two items an extended mass storage rom for the HP9845 and a HP-IB interface for my HP 9830A. I always pay instantly with paypal, when I contacted the seller about my items after a week or three I didn't get an answer, I waited another week and another email no answer. After I opened a dispute he answered and promised to ship the items and some extra's for the inconvenience. And yes his wife made a shipping label for USPS, but they never took the package to the post office, eventually I upgraded to a claim and got my money back, but what a waste of time this guy is. It took me 8 weeks to get nothing, so my advice don't buy from sammyslave1 (aka Larry L.) -Rik

13 years, 7 months

FFS: Tandon TM-100-4 floppy drive

by dgriffi＠cs.csubak.edu

I have a Tandon TM-100-4 floppy drive that needs some work on the drive door. Free for shipping from California. -- David Griffith dgriffi at cs.csubak.edu A: Because it fouls the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting. Q: What is the most annoying thing in e-mail?

13 years, 7 months

HP LJIIp and LJIIIp printers - get them working or dump them?

by chd＠chdickman.com

I have 1 LaserJet IIp and 3 LaserJet IIIp printers. None of them are really usable because the toner cartridges are either out of toner or the images have streaks and blotches. I think all of them are functional electrically and the paper feeding is still OK. It has been 3 years since I last tried one. I could always use an extra printer, so I have to decide if I should get them working or just dump them and get something new when I really need it. Is there a source for GOOD toner cartridges? Google finds a bunch of cartridges, but how many are junk refills? I am willing to pay for good cartridges, but I can't tell good from bad. Are feeding parts available if they start to pull multiple sheets, etc? Are there reputable sources? I know these have a good reputation generally, and I used one for a long time in the '90s. -chuck

13 years, 7 months

Infections (was Re: DEC, IBM, sex, drugs, rock 'n' roll)

by dm561＠torfree.net

----- Original Message ----- > > Message: 17 > Date: Fri, 13 May 2011 23:26:14 -0400 > From: "Teo Zenios" <teoz at neo.rr.com> > Subject: Re: DEC, IBM, sex, drugs, rock 'n' roll > > You would need to step outside of the house into a wooded area and wait > for an infected tick to bite you to get Lyme disease, something few tech > geeks have to worry about. Yes, this is just a joke. ----- Reply: Apparently we're fortunate up here in Canada; although there are thousands of cases in the bordering US states, according to many doctors the ticks don't cross the border: "...most Canadian doctors are woefully uneducated about Lyme Disease, erroneously believing that it does not occur in Canada." This is *not* a joke! http://www.canadatrails.ca/outdoors/lyme.html

13 years, 7 months

Unibus extender cards

by RichA＠vulcan.com

Does anyone have hex-height Unibus extender cards they would be willing to part with, or loan? We have created a printer interface card (based one the last rev of the M8571 plus all relevant ECOs) for an LP20 in the front end of our Tops-10 system (a DECSYSTEM-2065). It turns out that the other cards in the LP20 are not entirely defect free, so we need to hook up a logic analyzer to see where things are going wrong. We have no Unibus extenders, so we can't do things like cool suspect delay pots. We'd really prefer not to have to try building these. :-) Rich Alderson Vintage Computing Sr. Server Engineer Vulcan, Inc. 505 5th Avenue S, Suite 900 Seattle, WA 98104 mailto:RichA at vulcan.com mailto:RichA at LivingComputerMuseum.org http://www.LivingComputerMuseum.org/

13 years, 7 months

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test-drb May 2011