test-drb September 2011

test-drb@ccmp.vtda.org

159 participants
198 discussions

Documentation for Clearpoint SNXRAM/12 VME board?

by earl＠baugh.org

Howdy, Anybody happen to have (or know where) I can find documentation on a Clearpoint SNXRAM VME board? I've tried Googling for it, but no luck. I've got one and would like to add it to my Sun 3/110. (which I finally got booting after a lot of work finding all of the bad ram on the motherboard) Wondered if anybody happened to have info, esp. for the configuration jumpers (I can get it to "add" 6MB, but suspect it might be overlapped with the motherboard ram... that, or it has a bad chip or two... [which are sadly soldered on...] ) Want to make sure I've got it set up right before I EVEN BEGIN to think about attempting to debug the chips on it... :-) Earl

13 years, 3 months

VAX 11/730 - free to good home - via comp.sys.dec

by toby＠telegraphics.com.au

Incredible opportunity here for someone. Wish I could take it. --T > Hello All, > > I have an 11/730 with the following bits: > > Out by themselves: > * H7140 (power supply?) > * RL02 > * a faceplate with two tape/cart drives > > In the cabinet: > * RL02 > * CPU (it also says "DMF32 distribution panel" on the back) > * R80 > > I also have a VT220 terminal. > > I don't know anything about VAXes but it was running when last powered > down about 15 years ago. I was given it by a friend I helped with > some IT consulting. > > I have pictures I can make available. The system is in Greenville SC > and will be given away to the first person who can come pick it all > up. > > It has to go ASAP so don't waste time thinking I will still have it in > a month. It will be scrapped. :-( > > Thanks! > > -- Peter. https://groups.google.com/d/topic/comp.sys.dec/YhM5idkpF9U/discussion

13 years, 3 months

What's 6 Feet Tall and Weighs 1,500 Pounds? A Minicomputer

by jblaser＠sisna.com

From today's (August 24) Wall Street Journal front page: http://online.wsj.com/article/SB10001424053111903596904576516552161014410.h… Written as a bit of a puff piece, but interesting nonetheless, given the national reach of the WSJ. It might (though I doubt it) spur a few Wall Street types to take a keener interest in retro gear, making things dearer and harder for us homie hobbyists to acquire. :) Kudo's to Ian (King) and Rich (Alderson), et al. -- Jared

13 years, 3 months

Train shipping ( was Re: VT fixums )

by jonas＠otter.se

On Mon, 5 Sep 2011 21:21:32 +0100 (BST), ard at p850ug1.demon.co.uk (Tony Duell) wrote: >> > An AR88 (RCA communcations receiver) >> You *carried* an AR88 on a train??? They weigh, what, 45 kgs? You >> must > > Well, I didn't hold it for the netire journey, if that's what you > mean. > It sat on the luggage rack between Bristol and London... I hope not the overhead rack? I certainly wouldn't like to take an AR-88 down from an overhead luggage rack, let alone putting it up there, and certainly not having it fall out if something happened... Brrr... But even carrying it *to* the train wouldn't be particularly fun, with a cart or trolley I might consider it. > >> work out a lot... > > I am insulted! I have spent my entire life avoiding exercise, and I > don't > intend changing that. I have never done any uncnessary exercise. > No offence meant! :-) > The only 'working out' I do is how to fix classic computers (etc), > how to > design bits of electronics, and so on. > > >> I used to have a BC-312M. I really regret having got rid of it. That >> was >> a nice piece of equipment.Not quite as heavy as the AR88 but quite >> heavy >> enough to break your foot if you dropped it on one of them. The foot >> would be severely damaged but not the BC-312M... > > And that's the way it should be. You foot will mend itself, the > receiver > will not > Hmm, I'm not sure there would be a lot left of my foot to mend if a BC-312 fell on it from any height... /Jonas

13 years, 3 months

Free: Big CRTs in Chicago

by silent700＠gmail.com

I am moving (locally) in a few weeks. I've just started packing and, with much less success, trying to figure out what doesn't need to move with me. First off the pile are two large, old CRTs: Sun GDM1962B (http://www.monitorworld.com/Monitors/sun/gdm1962b.html) SGI CM2086A3SG The Sun has a 13W3 connector and is probably contemporary to the first Sparcstation line. The SGI has 3 BNCs and the *old* logo, which probably means it went with the Personal Iris era of SGI. That almost makes it collectable to me but...no. No CRTs for me. At least not for machines that can me made to work with an LCD. They're free for pickup if you happen to be in the area (60074.) No way I will ship these. -- jht

13 years, 3 months

Wall Street Journal has an article about Paul Allen's Computer Museum

by christian_liendo＠yahoo.com

Just interesting that that WSJ picked this up http://online.wsj.com/article/SB10001424053111903596904576516552161014410.h…

13 years, 3 months

eBay... Yikes! (PDP-1 Handbook)

by healyzh＠aracnet.com

13 years, 3 months

More house cleaning...

by useddec＠gmail.com

Still trying to unpack and thin the herd. Any interest? Shipping from zip 61853, Illinois Thanks, Paul 1 BA350-KA in pedestal with doors 1 BA350-KB 5 BA350-LA 1 BA350-MA WITH HSZ50,HSX CACHE, ETC 1 BA350-SA 1 BA350-SB 1 BA356-JC 1 BA356-KC 2 BA356-RA 1 DS-BA356-RC blue 2 BA356-SC 3 HS35X-BA 7 BA35X-HA 4 BA35X-HB 15 BA35X-HF 5 BA35X-HG 2 BA35X-HH 6+ BA35X-MD fans 1 BA35X-MG 1 70-32155-01 1 70-31490-01 3 DS BA35X-DA 5 DS-RZ1CB-VW blue 2 DWZZA-VW 11 DWZZB-VW 4 RZ24-E 12 RZ25-E 3 RZ26-E 5 RZ28-VA 19 RZ29-VW 3 SHD3-ZZ 4 SHG23-NF netframe 1 SHX37-NF 1 SHZH1-BH

13 years, 3 months

TRS-80 Model II Digging

by nathan＠nathanpralle.com

Finally pulled out the TRS-80 Model II tonight with the intention of actually working on it for once (shocker!) and trying to get it operational. It powers up, drive spins, screen comes on, lights glow, etc. Insert any one of about 20 8" floppies that I have that are specifically for the Model Ii and..... Nothing. Well. BOOT ERROR RS, which is translated as, "Disk not in RadioShack format." I'd believe it for one or two, but all of them? It seems unlikely, although I could blame bit-rot perhaps. I'm hoping it has something to do with the hardware instead. Popping it open, the unit powers on and the drive head is dropped to the spinning disk, then lifted, then dropped, then lifted, and the error occurs. I cannot see if the head is close enough to the disk or not (and I have *no* idea of the tolerances anyway) and am not sure how I'd adjust it -- or drive speed, etc. if that's an issue. So, anyone got ideas? There *is* a remote possibility that all the disks I got were wiped either by the previous owner or in some sort of magnetic disaster, but they're well-labeled and came from a working haul, so I have to imagine that they're still good. Or at least, I'm hoping they are. (The bits are damned near visible on these things, after all.) Your ideas and good guesses welcome and very much appreciated. Nathan -- *Nathan E. Pralle* Computer Geek www.nathanpralle.com www.philosyphia.com www.twitter.com/NPralle

13 years, 3 months

RQDX3 DEVOFFLINE Problems

by robert.jarratt＠ntlworld.com

I have a MicroVAX II in a BA123 enclosure and I am experiencing some problems getting it to see the RD53. Whenever I try to boot I just get the error DEVOFFLINE and the Ready light on the front panel goes out when this happens (you can't get it to switch on again if you press the button a few times). The RD53 is known to work as it will boot in a MicroVAX 2000. The RQDX3 also works as I have tested it in a working MicroVAX II (BA23). I have tested the cable from the RQDX3 to the M9058 distribution board. I have also tested the cable from the M9058 to the front panel. I have tested the front panel button and it seems to be right (it shorts two terminals when depressed, leaving the Open Circuit when it is out). I have swapped the cables from the distribution board to the drive with another set. I am starting to suspect that the M9058 is at fault, I don't have a spare to eliminate this component, but I was wondering if anyone else has seen this problem and has any suggestions. Thanks Rob

13 years, 3 months

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test-drb September 2011