test-drb October 2006

test-drb@ccmp.vtda.org

217 participants
352 discussions

by kenziem＠sympatico.ca

Received a post from a fellow in New York with a machine to give away. > I have access to an Apollo Domain series 3000 machine, actually was > told to throw it out, and googled the make and model, just for fun. If you are interested email me and I'll forward the replies.

17 years, 9 months

FA: Amdahl Omniflex 1015 Millennium Omni Model 1015 Server Mainframe

by stephane.tsacas＠gmail.com

See item http://www.dovebid.com/assets/display.asp?ItemID=tbd269094 A bunch of SGIs for $25 : http://www.dovebid.com/assets/display.asp?ItemID=tbd272280 -- Stephane Paris, France.

17 years, 9 months

Ebay bunch of 4/2xx stuff in Philadelphia on eBay

by aek＠bitsavers.org

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=110042636347 Posting this since the listing title " Vintage Computer Items MUST SEE! Many Items, one go "is pretty useless.

17 years, 9 months

RX02 Problem solved...

by gkaufman＠the-planet.org

Tony and others - The head load pad looks visually fine. The head load spring tension appears pretty normal , and the solenoid pulls in nicely. The drive consistently reads the first 10 or so tracks, then tosses various number of errors as it goes further out. I've cleaned the head, and cleaned/lubed the spindle. The track 0 sensor appears fine. It is indeed possible that the alignment is off - that would probably explain the poor performance as it steps out. I guess a worn out head would have the same symptoms. I the 70's I had a neat Dysan digital alignment disk that I used to realign a few SA901 and SA801 drives. Unfortunately I no longer have it. I suppose I could mark the position of the stepper and slightly rotate it in each direction to see if it improves things. If someone can point me to an actual alignment procedure I'm game - I have reasonable scopes etc here. I'm not anxious to replace the entire drive, but I would love to get this up and running! Any help/suggestions greatly appreciated. - Gary Other faults that I've had were a mis-aligned track 0 sensor (causing it to step out beyond the outermost formatted track on the disk), and a low-tension head load pad spring. In the latter case, taking the thing a aper and bending the torsion spring by hand got it going again. The only problem was reassembling it, I found it necessary to make a dummy pin to hold the spring inside the load arm that was then pushed out when the real pin was inserted through the head mouting. In any case, before replacing something as large as a drive unit, I'd want to know which of the various parts was the problem. Do you know, for example, that the head load solenoid works and pulls in correctly? That you can get a signal from the track 0 sensor? That the spindle is turning? and so on... -tony

17 years, 9 months

Anyone here from Oregon USA to help with collection pickup?

by billdeg＠degnanco.com

Hi - I have an opportunity to pick up a large collection of vintage computers located in Oregon. I have been told that one would need a truck to get it all in one shot. If there is anyone who lives in or near the "541" area code and is interested in helping, contact me directly and I can give you the details. Thanks. Bill Degnan

17 years, 9 months

RD53s and RD54s

by toby＠russellsharpe.com

Hi, I've decided after many years of accumulating PDP-11s that the time has come to restore a few of them to operational condition. I've decided to start with some QBUS machines as they give me the best chance of a warm fuzzy feeling of success. The first thing I've decided to do was to retrieve all of my RD series harddisks and establish which ones are still operational. I've initially started with 4 RD53s and 4 RD54s which I've connected upto an 11/73 and used XXDP to format. All RD54s have formatted perfectly, confirming their reputation for reliability. However none of the RD53s would format, which I guess also backs up their reputation. I had hoped at least a few of the RD53s would have still been usable (I have about 6 more I've not tested yet). Does anyone have a RD53 still in working condition? Is there any point in keeping the duff drives or should I consign them to the skip? Toby -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean.

17 years, 9 months

group buy for homebrew CPUs?

by dgriffi＠cs.csubak.edu

I was wondering if there's anyone else out there interested in someday building a Magic-1 and/or D16 homebrewed CPU computers. If so, I'd like to organize a group buy for some of the harder to source parts. Specifically, the 74F382 and probably 74F381. My favorite chip broker has a $50 minimum order. -- 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?

17 years, 9 months

S-100 system available in Oregon

by dave06a＠dunfield.com

I received this request recently by email: ------------------------------------------------------------------------------------------------- I have and I'm tired of storing an old S-100 box, probably home-made in a formed and machined aluminum enclosure. The whole thing is a tank of impressive proportions and weight. I saved it from the trash years ago, as S-100 systems were common when I first started using computers (Osborne 1 era). Originally, it had 2 8" floppy drives. One of the drives is missing, although I have the door for it. Inside, there's a CPU/IO card, a 64 K DRAM card, an analog data acquisition card, and I don't remember what else. One of the cards says MicroByte. The front panel had a key switch, which is still there, but pulled back from the panel. I have no idea if this works, but at least the major parts appear to be on hand. Are you interested in this beast? Do you want pictures? I don't want any money other than the cost of getting it into better hands. I'm in Eugene, Oregon, by the way. ----------------------------------------------------------------------------------------------- Too far/heavy/big for me to get it shipped here, however if there is someone on the list who would like to give it a home, please contact me and I'll connect the two of you. Regards. Dave -- dave06a (at) Dave Dunfield dunfield (dot) Firmware development services & tools: www.dunfield.com com Collector of vintage computing equipment: http://www.classiccmp.org/dunfield/index.html

17 years, 9 months

need docs for intel 80c186/80c188 evaluation board

by chrism3667＠yahoo.com

moochiss grassyass amigos __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

17 years, 9 months

how do I copy an RD54 completely?

by henk.gooijen＠oce.com

I have an RD54 with a working RSTS system (V10.?) on it. The RD54 was installed in the microPDP-11/93 that I had. I have a microPDP-11/53 with RQDX3 and got a few days ago an Emulex UC07 QBUS SCSI interface with a 1 Gb SCSI disk. Before I mess up the RSTS (because I don't know anything about RSTS yet), I would like to make a copy (dump?) of the complete RD54 to the SCSI disk, so I can restore the whole RD54 to an other RD54 if this one dies ... or is messed up completely by me :-) I think the following steps are a starter (?): 1) install the UC07 and connect the SCSI disk 2) connect the RD54 to the RQDX3 3) start the system till the RSTS "Option" prompt Then what? First, I need to know the device names. Is there some command like RT-11 ".SH DEV" available in RSTS? Then I probably need to initialise the SCSI disk? Then I need some sort of command to get *everything* >from the RD54 to the SCSI disk ... Any help is appreciated! TIA, - Henk, PA8PDP This message and attachment(s) are intended solely for the use of the addressee and may contain information that is privileged, confidential or otherwise exempt from disclosure under applicable law. If you are not the intended recipient or agent thereof responsible for delivering this message to the intended recipient, you are hereby notified that any dissemination, distribution, or copying of this communication is strictly prohibited. If you have received this communication in error, please notify the sender immediately by telephone and with a "reply" message. Thank you for your cooperation.

17 years, 9 months

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test-drb October 2006