test-drb June 2002

test-drb@ccmp.vtda.org

205 participants
502 discussions

by xds_sigma7＠hotmail.com

The surplus place I go to at least used to have an ISA opus sparc thingy.. I hope its still there... Will J _________________________________________________________________ MSN Photos is the easiest way to share and print your photos: http://photos.msn.com/support/worldwide.aspx

22 years, 2 months

A good day at Goodwill

by xds_sigma7＠hotmail.com

Dunno if its still there, but there at least used to be one with floppy included at the scrapyard... also an osborne 1 with the screen busted.. Will J _________________________________________________________________ Chat with friends online, try MSN Messenger: http://messenger.msn.com

22 years, 2 months

[CCTECH] AT&T PC7300 / UnixPC is ill! :(

by csmith＠amdocs.com

> -----Original Message----- > From: Andy Berg [mailto:groovelists@yahoo.com] > Today, I acquired a PC7300. Alas, the poor fellow > seems to have a rather large malady of some type. I've It will make you feel better to know that they're very sturdy. > Evidently, before one of these machines first boots > up, it displays a few rectangular characters in the > upper left hand corner of the screen. It then proceeds > to its boot screen. (And then OS loading and whatnot Yes. The rectangles come from ROM, the boot screen comes >from the on-disk loader. (I think) It's really trying to boot, from the sound of it. Put a diagnostic disk in the floppy drive and see what happens. If you've got not diagnostic disk, that's your first problem ;) > if all is well.) My machine just sits there and > displays rectangle after rectangle after rectangle. No > boot screen ever appears. The machine was working when > put away for storage when put away a few months ago, > but refused to boot when it came out. I guess that > leaves it at the point that I got it. :) Chances are that it's the disk. You'll find that it's a normal ST-506 (Is it 506? -- "MFM") disk. If you find that the disk really is toasted, you can get pretty much any half-height drive and replace it. They came with Miniscribe lots of the time. I've replaced them with Seagate and Rodime drives without trouble. Anything else is also likely to work. > I managed, with a bit of yanking about, to get it > disassembled, down to the motherboard, as per the 3b1 > FAQ. I got some of the big dust out and reseated all > of the seatable chips. There didn't seem to be any > major damage anywhere... one of the fans had a cut > line which I repaired, but there was no evidence of > any type of overheating. Most socketed chips were Careful there. There was a procedure somewhere describing how to disconnect the thermister from the fans, in order to _keep_ the system from overheating ;) Make sure that line was one of the lines that powers the fan. Of course, my system, and my fiancee's system, are both fine without having had that done. > reseated, everything was powered on once again, and > the same thing seems to happen. :( The rectangles > appear, the floppy drive sits and spins, and the hard > drive spins up and sits there. There is a loud > beep/click type sound, which I'd figured to be the > heads unparking themselves. When the hard drive cable > is removed, the machine freezes at one rectangle, so > was thinking it could be something along those lines. As I was saying, it could just be a bad disk. > think I can report are that the four indicator LEDs > are at a constant on state - could also be normal for > this part of the boot cycle for this machine, too. I think so, but my memory is fuzzy. Chris Christopher Smith, Perl Developer Amdocs - Champaign, IL "Confutatis maledictus, flammis acribus addictus, voca me cum benedictis. Oro supplex et acclinis, cor contritunt quasi cinis, gere curarn mei finis." -Requiem

22 years, 2 months

RA82 belt tension adjustment, how?

by m_thompson＠ids.net

I was told that this error might be a problem with the starting capacitor. RCS/RI has two RA81s with the same behavior. I bought replacement capacitors and will try them Saturday. Michael Thompson E-Mail: M_Thompson(a)IDS.net

22 years, 2 months

Fw: Free or Best Offer: VAX and RS/6000 hardware

by rschaefe＠gcfn.org

Just came across this... replys to the original author, please. Bob ----- Original Message ----- From: "Charles Sandmann" <sandmann(a)clio.rice.edu> Newsgroups: comp.sys.dec,comp.os.vms,misc.forsale.computers.workstation Sent: Tuesday, June 11, 2002 04:59 PM Subject: Free or Best Offer: VAX and RS/6000 hardware > Early 90's vintage DEC VAX systems and peripherals, IBM RS/6000 parts. > > http://clio.rice.edu/freehw.txt > > Other items lying around my office since I created the list may also be > available (hard disks, Alpha systems with dead power supplies, etc). > > Pickup in far west Houston, Texas, USA. I would prefer to support > VMS hobby usage, but anyone who shows up to take the big stuff gets it. > > I don't have time to package or ship anything, but if you are really > desperate for something I might be able to find someone for you to > negotiate with.

22 years, 2 months

[CCTECH] Morrow Designs CP/M computer parts to good home

by msspcva＠yahoo.com

All: I have the remnants of a "Morrow" computer, from what I've seen on the net it was a CP/M machine (Z80A processor). All that's left is a main board and the case. The case has no model number information, just "Morrow Designs" and the serial number, plus a label on the inside with a PCB number and numbers for the now-missing drives and power supply. The main board has 2, possibly 3 Z80A micros, PROMs, etc. A label on one chip which may be a Z80A has "4/5/84" written on it. If you want it, all I ask is shipping (it's light, so probably no more than $5 in the US). If you'd like to throw in $5 more for packing it up and taking it to UPS it would be appreciated. I've kept it around for a long time, and just recently unearthed it to remove some threaded nuts from the serial interfaces for use in another computer. -- Frank ===== = M O N T V A L E S O F T W A R E S E R V I C E S P. C.= Clayton Frank Helvey, President Montvale Software Services, P. C. P.O. Box 840 Blue Ridge, VA 24064-0840 Phone: 540.947.5364 Email: msspcva(a)yahoo.com ============================================================ __________________________________________________ Do You Yahoo!? Yahoo! - Official partner of 2002 FIFA World Cup http://fifaworldcup.yahoo.com _______________________________________________ cctech mailing list cctech(a)classiccmp.org http://www.classiccmp.org/mailman/listinfo/cctech

22 years, 2 months

[CCTECH] Interesting tidbit on 6502

by RCini＠congressfinancial.com

While browsing sites for 6800 information, I came across this quote from <http://wombat.doc.ic.ac.uk/foldoc/foldoc.cgi?Mostec>. which talks about the design goals for the 650x in comparison to the 6800. >The design goal was a low-cost (smaler chip) design, realized by simplifying the decoder stage. There were no instructions with the value xxxxxx11, reducing the 1-of-4 decoder to a single NAND gate. Instructions with the value xxxxxx11 actually executed two instructions in paralell, some of them useful. < Now, I didn't look at an opcode map, but it seems that this is an interesting twist that I've never seen quoted when people discussed the mysterious undocumented 6502 opcodes executing what appeared to be multiple instructions. Any thoughts? Rich ========================== Richard A. Cini, Jr. Congress Financial Corporation 1133 Avenue of the Americas 30th Floor New York, NY 10036 (212) 545-4402 (212) 840-6259 (facsimile) _______________________________________________ cctech mailing list cctech(a)classiccmp.org http://www.classiccmp.org/mailman/listinfo/cctech

22 years, 2 months

[OT] measuring DC wall wart

by mythtech＠mac.com

>heck you can even use a jar of salt water >with 2 electrodes in it at a pinch -- electrolysis is a problem if you >use it for any length of time on DC, but it will act as a power resistor >for long enough to test a PSU) I did that for extra credit once in a theater lighting class. I built a Salt Water dimmer system. Worked real nice for a little while, then the water turned piss yellow, and it stopped conducting at all. But I got the extra points to make up for the classes I missed. I built it using a 9 volt battery, the little square ones used in toys, a baby food jar, metal cut from a can of peaches, and some scrap wood, wires, and light bulb pulled from a toy truck... same truck the battery came from. It was a fun evening project. -chris <http://www.mythtech.net>

22 years, 2 months

Anyone have the pinout for a 9328 (shift register?)

by ard＠p850ug1.demon.co.uk

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22 years, 2 months

Free stuff in Mid Wales

by Lists＠joules.org

Due to a move to a smaller house, I am having to consider letting go of some of my toys :( The following is available, free to a good home: 2 Sun 386i (boxes only, no HDD dead or dying NVRAM) 2 x PDP11 rackmount CPUs 2 BBC Bs Other stuff may be available as I move and find out how little space I have in my computer room. -- Regards Pete "Time flies like an arrow and fruit flies like a banana"

22 years, 2 months

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test-drb June 2002