test-drb April 2015

test-drb@ccmp.vtda.org

182 participants
220 discussions

by supervinx＠libero.it

Hi! All the work is done! The printer's gone, but the unit is fully functional. I built a bus terminator and today I found a disk controller able to write FM/SD (the first disk track is always formatted that way) togethet my repaired Siemens FDD200P. I had two disk images (utils and diags) from the Stuttgart Museum, but the utils one appears to be in German language. Do you have an english image of the util disk or other 5120 related software? Thanks!

10 years, 1 month

Does anyone here have any information/docs on the Tahoe aka Power 6/32 aka Harris HCX-7/9?

by jnc＠mercury.lcs.mit.edu

> From: Al Kossow > a fairly long article in the Dec 8, 1986 Computerworld Sorry, which page? I looked in that issue for the article using the 'Search' function, but couldn't find it? Noel

10 years, 1 month

Altair Turnkey and some DEC stuff cheap

by jnc＠mercury.lcs.mit.edu

> From: Roe Peterson > There is a product, can't remember the name. It's basically dental > floss for dentures, and comes in individual strings about 3 inches long > with a cleaning tip at one end. I found something that sounds like this; it's called "Superfloss" (OralB product); they are about 10" long, with a 6" section in the middle that looks like a miniature pipe cleaner. Speaking of pipe cleaners, I also tried using them. They were a bit too big to get through the space, but there's something called "Chenille Stems" (Fibre Craft product), available in craft stores, which is like a light gauge pipe cleaner, but with longer 'pile'. It won't go through as it, but if you trim the pile, it will go through most slots (there is component variation, and for some blocks, the gap between the block and the PCB is much smaller). > From: Tothwolf > Could you use an aquarium pump and a long airstone / bubbler to help > clean the boards using aeration? I'm not sure that would get off the impacted dirt. (At least, more so than a long soak, and then water jet.) > Or, maybe get in there with a Waterpik? I did try and find a small pressure washer type thing, but the smallest I could find was ... still pretty big. Maybe a Waterpik would be more the backplane's size.. Noel

10 years, 1 month

Wanted: ASM-48 for Intellec MDS-2

by fulivi＠tiscali.it

Hi everyone, I'm looking for a dump (or the real floppy!) of the ASM-48 assembler that ran on Intel MDS-2 systems. It seems that it is very rare (maybe it didn't sell too well back in its days). After a few days of googling I still have no idea of the Intel part-number for it. Other assemblers (e.g. ASM80) are much more common. The reason I'm looking for it is to re-implement the firmware in the PIO processor (a 8041A) of the MDS-2 emulator I'm writing for MESS. I thought it would be a nice idea to write the firmware by using the system itself: it is a development system after all! I think I've no hope of finding an image of the original firmware. The original PIO is a masked ROM version that Intel produced for itself. The only way to dump it, I guess, is by decapping and photographing the die. By the way, if you are interested, check my preliminary version of the emulator (imds2 in 0.160 release of MESS): it's not complete (PIO it's not there, for example) but it can run all ISIS-II sw I could find. I hope I'm not "offending" anyone in this forum by mentioning an emulator, it looks like you are mostly focused on real (vintage) hardware.. Just out of curiosity: is there anyone among you who owns a MDS-2 system? Thanks! -- F.Ulivi

10 years, 1 month

Does anyone here have any information/docs on the Tahoe aka Power 6/32 aka Harris HCX-7/9?

by krfkeith＠gmail.com

I've checked Bitsavers, but no dice. There didn't appear to be a section for Computer Consoles Inc, the original manufacturer, and there's nothing in either the Harris or the ICL sections (both of which sold rebadged machines). Anyone information you guys might have on this machine would be much appreciated. I'm especially looking for a programming guide, or anything which might provide information on the ISA. I've heard of it being describing as somewhat VAXoid, but I haven't ever seen any reliable information as to what its instruction set actually looked like. The machine is of historical interest for being the first architecture, IIRC, that BSD4.3 was supported on. Otherwise, it seems to be rather obscure. I've searched everywhere, and no one seems to have much on it. But I figured if anyone did, it would be you guys. Thanks for reading!

10 years, 1 month

DEC Professional 350 - video issue

by commodorejohn＠gmail.com

Back in November I dropped in on a list member's moving giveaway and came away with some DEC stuff, among which was a DEC Professional 350 with keyboard and monitor. As the previous owner informed me, the video isn't working; there's no picture on the monitor, but there's visible sync lines, and the diagnostic lights on the back of the unit indicate an error with the bitmap graphics card. I'm pretty sure it's an issue with the card and not the slot, since the error moves with the card when I install it in one of the other slots, but I'm not sure what to look for on the card itself - nothing is socketed, so it's not chip creep, and the card connector looks to be in good shape. Does anybody have any advice for diagnosing and repairing this? I'd really like to get it working. Failing that, does anybody have a spare for the video card? (It's DEC part number 54-15138.) I've got a Rainbow I'd be willing to trade for a working one (base unit only - I don't have the facilities to test it, but according to the owner it was in working condition.)

10 years, 1 month

More Dilog and Emulex

by useddec＠gmail.com

DILOG DQ130 DQ686 Emulex CS09 SC01 SC03 SU21 hex TU11 TU121 TU131 UD33 hex QD01 QD21 QD241 QT131 MDB -DWO 40040270 Simpact/ Industrial Networking Inc TBM-15 token bus modem Anyone use MTI boards? I have several here. Thanks, Paul

10 years, 1 month

Available: VAX-11/750, DEC7000, DEC5500 and more!

by pontus＠update.uu.se

Hi A computer club in northern Sweden (Lule?) is clearing out some storage rooms. I'm not the owner and not directly responsible for this (although I'm involved). Shipping will _not_ be possible, but things that people have interest in can be stored for "a while". Here is a list of things heading for the scrapper: Unibus- and BI-bus boards (I'm will try to save these) 1/2"-tapes 2x DEC7000 RX01-floppies DEC5500 (labled ellen.lnt.dec.com) Vax 4000/300 A few RA90 MV3900+RA82+RL02 Sun-mice and Sun-SCSI-cables (lots) Annex3 Terminal Server VAXserver 3100 VAXstation 3100 Vax 4000/90 2x VAXstation 3100/76 Vax 4000/60 Infoserver 100 Sun CD-drive Mikrovax 3800 CI-cable 2x RF215 (disk towers) Mikrovax? 640QR? Vax 4000/500 HSC90 TU81+RA82 11/750 no PSU SDI cables 2 st Hawk-drives (ND511). Boards for Nord-100. Teleray terminal 2 Nord-10 CPU-boxes? There is also a VAX 8354 with RA72 that I'm going try and save myself, but I can't fit the cabinet in my garage. So if anyone seriously wants this, I'll let it go. There is also two RP07 that might get a new home locally, but it's not decided yet. The list might grow or shrink depending on what people claim or not. Here are some images: http://brain.brokenbrain.se/skrot_dh1/ Regards, Pontus.

10 years, 1 month

This may be the most impressive demo I've ever seen.

by lproven＠gmail.com

http://trixter.oldskool.org/2015/04/07/8088-mph-we-break-all-your-emulators/ This is a demo for the original 4.77MHz 8088 IBM PC with CGA. No sound card, no hard disk, but 640kB of RAM. It's astounding, from the music to the 256-colour graphics. An amazing piece of work. -- Liam Proven ? Profile: http://lproven.livejournal.com/profile Email: lproven at cix.co.uk ? GMail/G+/Twitter/Flickr/Facebook: lproven MSN: lproven at hotmail.com ? Skype/AIM/Yahoo/LinkedIn: liamproven Cell/Mobiles: +44 7939-087884 (UK) ? +420 702 829 053 (?R)

10 years, 1 month

Huge IBM 1800 find (and need some help)

by jnc＠mercury.lcs.mit.edu

> From: Roe Peterson > There are very likely lead bars in the bottom rear of the rack I recall finding one in some machine (don't remember what, now); they are so the thing won't fall over when something is extended/swung out. Noel

10 years, 1 month

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test-drb April 2015