test-drb March 2005

test-drb@ccmp.vtda.org

291 participants
840 discussions

by pete＠dunnington.u-net.com

On Mar 12 2005, 15:18, John Willis wrote: > Here's an update, for all who may be interested in it: > > The MicroVAX II now has the following configuration: > > A B C D > +-------------------------------------+ > | CPU | > +-------------------------------------+ > | Memory | > +-------------------------------------+ > | TQK50 | EMPTY | > +-------------------------------------+ > | DHV11 | > +-------------------------------------+ > | DRQ3 | > +-------------------------------------+ > | RQDX3 | EMPTY | > +-------------------------------------+ > > > I'm trying to get my hands on a DELQA or a DEQNA. Will > this require yet another re-shuffle of the cards, or can I > move the RQDX3 to the end and put the DELQA/DEQNA where > the RQDX3 is now? Common concensus is that a DELQA is better than a DEQNA -- more reliable and less prone to dropping/corrupting packets. In either case, though, you want it fairly high up the bus because it's not very happy waiting too long while other things get their interrupts or DMA requests serviced. Also I have a feeling that DEQNA support was dropped from VMS round about 5.something -- but I'm not a VMS expert, so I stand to be corrected by others (is the driver much different? The actual Ethernet part certainly is). I'd suggest you move the DHV11, DRQ3, and RQDX3 down a slot, and put your network card in the slot below the TQK50, with your grant card beside it. -- Pete Peter Turnbull Network Manager University of York

19 years, 9 months

Sun 4/470 with plenty of spare bits available, Wellington - New Zealand

by jplist＠kiwigeek.com

Greetings; I have a Sun 4/470 available in Wellington, New Zealand, available for pick-up to whoever wants it. This was my VERY FIRST collected machine, and I truly and honestly loathe to let it go, but I have since emigrated the country and it needs to be removed from my parents house. (If anyone is famaliar with Actrix, the first public ISP in New Zealand (and one of the first in the world), this 4/470 *was* Actrix for a couple years, shemal.actrix.gen.nz) The machine does work, I bought a 'new' CPU card for it in 1999 as the original was flaky. The machine has the stock 33mHz processor and 128MB memory (4x 32MB cards) installed, two 1.3GB SCSI disks and four 911MB IPI2 disks. The 4/470 is in two cabinets (VME chassis & IPI2 disk chassis), desk side arrangement. All cabling is included, plus spare processor card, a stack of peripheral cards, spare backplane and power supply. At one point I had two entire 4/470s (four chassis), and ended up gutting one set of chassis and dumping them, keeping the parts. Pictures & little bit of (old) info: http://www.kiwigeek.com/hjp/comps/Sun_4s/ There is only one stipulation/problem - the machine can ONLY be picked up during June of this year. Thanks; JP

19 years, 9 months

B&K PRECISION 540 COMPONENT TESTER Manual??

by rigdonj＠cfl.rr.com

I picked this up yesterday and got it working last night. Does anyone have a manual for it? It's a small Oscilliscope-like device that's used for testing transistors and the like. Oh yeah, I'm going to use it to fix my vintage equipment. Joe

19 years, 9 months

Create a VAX CPU with FPGA?

by vax9000＠gmail.com

There are many "soft CPUs" around. I wonder how hard it is to create a soft VAX CPU core that can be load into an FPGA. Other than to design from scratch, I think it might be easier if we grab the VAX-11/780, 750, or 730 schematics, and throw them into an FPGA compiler. The 780 was implemented with TTL, the 750 with gate array, and 730 with AMD 2901. I think the 730 scheme might be the easiest to implement with an FPGA. So, does anybody have the 730, 750 or 780 schematics? No, I do not plan to start the project. I just want to make sure whether it is feasible. Thank you. vax, 9000

19 years, 9 months

Seeking Motorola S38FC012PIO2

by vcf＠siconic.com

I'm trying to find a Motorola chip marked S38FC012PIO2. I've checked around and can't find anything online. Does anyone recognize this chip? I need to find one to replace a chip I have on an interface card here in the hopes that replacing the chip will fix it. -- Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintage.org [ Old computing resources for business || Buy/Sell/Trade Vintage Computers ] [ and academia at www.VintageTech.com || at http://marketplace.vintage.org ]

19 years, 9 months

Sunshine T-5000 IN-CIRCUIT BOARD PROGRAMMER??

by rigdonj＠cfl.rr.com

Is anyone here familar with this programmer? It's about the size and layout of an old Kaypro portable computer. This is Sunshine Co. of Calfornia and not the Sunshine Co. of Taiwan that made a lot of the cheap PC based EPROM programmers. Brief description here <http://www.sunriseelectronics.com/t5000.htm>.. Joe

19 years, 9 months

USB Universal Floppy Disk Controller

by Watzman＠neo.rr.com

Re: "But yep, agreed. I certainly need *something* that can archive / restore classic formats to/from modern(-ish!) media. Shift register + counter + high speed RAM. Could even do it with an FPGA if you wanted. Buffering an entire track with 8x oversampling is going to be hellishly memory intensive though." I'd really rather see it done with a real FDC chip. While there might be some loss of flexibility in dealing with a few formats, I didn't mean to imply that I was ONLY interested in reading. With the right software, I could open an "explorer" window on an XP machine and "drag-and-drop" files .... to an 8" CP/M diskette. Or write a "system track". [As long as this is only a wish-list, why not stretch].

19 years, 9 months

USB Universal Floppy Disk controller

by Watzman＠neo.rr.com

What we need so badly is a USB universal floppy disk controller. It has to do 8" (single and/or double sides & density), 5.25" (both 360k and 1.2MB) and 3.5", at least 2 drives of each type. Ideally totally configurable to read/write any format, even "non-standard" formats (including 1k sectors on 8" drives, Microsoft's 3.5" "DMF" format, etc.) Can't anyone design one? It's way over my head, but I'd buy one in a flash. I'm desperate enough that I've been taking apart 3.5" USB drives hoping to find one that was a USB controller with a standard 3.5" drive. So far, they have ALL been "integrated" devices.

19 years, 9 months

Not quite 10, but FREE alphaserver 800 5/400

by rich_bramante＠yahoo.com

I am posting this from another list. Please reply to the email below. I have no other knowledge of this system. --------------------------------------------------------------------- Digital starion 910 alphaserver 800 5/400. works, but OLD. probably ok for parts; innomax monitor, cambridge soundworks speakers model SPS52; HP Deskjet 540 printer. works well, but is slow. I live in Raymond NH & work in Northwood - pickup can be made either place. kmbiery03077 at yahoo.com __________________________________ Do you Yahoo!? Take Yahoo! Mail with you! Get it on your mobile phone. http://mobile.yahoo.com/maildemo

19 years, 9 months

kdj11-sd eproms

by ericj＠speakeasy.org

I recently attempted to modify a decserver board to use the 11/53 roms. I installed the pullup and burned the images into a pair of am27128A-2dc eproms, but when I powered up the board it couldn't pass test #1 with the "KDJ11-D/S 1.00" message. I reverified the contents of the eproms and thought that I must've damaged the board when installing the pullup. Just to be sure though, I remapped the 11/53 images with "cat 261E5.bin 261E5.bin > 1.bin", "cat 262E5.bin 262E5.bin > 2.bin", then erased the original 27256's and burned the new images into them. After reinstalling these I powered up, and the board came up okay: 9 8 7 6 5 4 3 2 1 Commands are Help, Boot, List, Map, Test and Wrap. Type a command then press the RETURN key: So my question is, did I botch the pullup install or did I use the wrong eproms? What eproms should work in the kdj11-sd? The originals were am27256dc. My next step is to test a teac fd55gfr 149-u5 floppy drive for use as an rx33. It appears to have the correct jumpers, but I haven't seen it listed as one known to work. Can anyone confirm whether this model can be configured as an rx33? Thanks, -- Eric Josephson

19 years, 9 months

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test-drb March 2005