- test-drb@ccmp.vtda.org - classiccmp.org

Need help with 2 projects. (TI and Xerox)

by g-wright＠att.net

Hi, All I am looking for repair manuals for a TI 990/12 Business system. mine has no output from the Power Supply board. Fans come on. I have dozens of manuals but all have to do with operations and software. The only service info. is a folder with full of Xerox tech call logs and reapir invoices. The second machine is a Xerox Star. I have the software and operating manuals. I would like to find the stand alone common software disk or a disk image. I have only the network disks and booting it with out the network server is a pain. Of coarse if someone in the Seattle area has a Xerox 860 server they want to part with I can have my own Xerox network and Space heaters. ;-) I would also like to find the sys admin. type manuals. (set up, software install) Thanks, In advance Jerry Jerry Wright JLC inc. g-wright(a)att.net

22 years, 4 months

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VCF advertising and theme (was: FAT file system...)

by cb＠mythtech.net

>Hey, whatever happened to all of those >good B movie like that which were on cable TV at night (before cable >TV became boring)? Years ago, I used to stay up late and hack code >while watching them. "USA Up All Night" was a great program to catch these. And of course Rhonda Sheere(sp?) in her best B-Movie Busty Blond attitude made it all the better. -chris <http://www.mythtech.net>

22 years, 4 months

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I have an AS/400 in my trunk...

by ian_primus＠yahoo.com

I was really busy over Thanksgiving, and then I got really sick, I'm just recovering today, so I haven't had much time to do any tinkering with computers. I just got home a few minutes ago, and the back end of my car is sagging from the weight of an IBM AS/400 Model 9404. It's very heavy, and I can't lift it alone, so it's going to have to stay there until I can get a friend to help me lift it out and get it into the house, but I have the panels, tape drive and battery backup unit inside (I took them out to make it lighter and easier to load). Unfortunately, the machine is missing it's hard drives, as well as their carriers. It does, however, have a tape drive installed, and seems to have it's full compliment of boards. I can't wait to play with it :). It's not like I need another project, and I really don't have space for it at the moment, but I couldn't pass it up. I can always use it as a nightstand/space heater... Anyway, anyone know anything about this beast? I've only done a little googleing, which hasn't turned up any information on the hardware. I need to find at least one drive carrier, and an operating system for it. Does Linux run well (if at all) on the AS/400? Like I said, I haven't done much research yet, I'm just trying to see if anyone has had any experience with this thing. It's an interesting (and heavy) piece of hardware. It will be fun to get running, provided I can find the time. Ian Primus ian_primus(a)yahoo.com

22 years, 4 months

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Foam replacements

by RCini＠congressfinancial.com

Hello, all: The other day I pulled my Radio Shack Model 102 out of the hard plastic case and noticed, for the first time, that the foam padding is starting to deteriorate. Does anyone have a source for replacement foam sheets or the like that I could use to replace the foam in the plastic case? I don't have the measurements handy, but it might be about 11" by 18" in size and 2" in depth. Any thoughts appreciated. Thanks. Rich

22 years, 4 months

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Dayna Etherprint

by vollbrec＠iastate.edu

Hi Jim, Are you the Jim Arnott that posted knowledge on how to use Dayna Etherprint box? I found the thread in a mail list. If so, would you be willing to try and help me out with trying to set one up for my home network? Thanks, Erik -- ________________________________________________ Erik Vollbrecht Department of Genetics, Development and Cell Biology 2206 Molecular Biology Building Iowa State University Ames, IA, 50011 office: 515-294-9009 lab: 515-294-0137 fax: 515-294-6755 email: vollbrec(a)iastate.edu ________________________________________________

22 years, 4 months

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VME-based Transputer boards are now on ebay

by rmeenaks＠olf.com

Hi, This is one of mine (shameless plug): http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=2771400232 Cheers, Ram

22 years, 4 months

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HP2000 Tape Conversion

by aek＠spies.com

> Any ideas how to convert a tape cut on an HP2000 into the .tap format > used by the SIMH hp2000 simulator? Eric Smith has a program called tapecopy that will do this under Linux .tap is <little-endian 32 bit record length> <data> <copy of record length> with a single byte of 0 for a tape mark. To create a .tap file from a real tape you: read a tape record if it is a tape mark, put out a byte of zero else write the record length write the data write the record length

22 years, 4 months

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Copy of STD39 Internet Standard (BBN Report 1822)

by aek＠spies.com

> Can someone helps me, please ? It is on my list of things to look for. BBN 1822 describes the host to IMP protocol I'm hoping there is a copy in the SRI archives at the Computer History Museum.

22 years, 4 months

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IBM 5216 printer

by Innfogra＠aol.com

My bad. What I was remember was the 5218 not the 5216. Do you have a picture? My memory is not what it was, especially for non favorite printers. >From the IBM info I would say this was the Wheelwriter printer that was concurrent with the PS/2 line of computers. It was also related to the Wheelwriter series of typewriters, the last, I think, being the Wheelwriter 7s. If it has a parallel port it is this daisywriter printer not the older one. What ports does it have again? Paxton Astoria, OR

22 years, 4 months

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Disk hardware emulation

by mcwood＠t-online.de

Hi, I think what a lot of people need is something like this here http://www.wilsonlabs.com/wbc512.htm . It's a SCSI replacement for Maxtor MFM Disks like XT-1140 or even XT2190. But they want $995 ... Best Regards, Marc Holz Perhaps they might give a better price to a large number of hobbyists.

22 years, 4 months

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Space Invaders returning to arcades...

by dwight.elvey＠amd.com

>From: Witchy <witchy(a)binarydinosaurs.co.uk> > >> -----Original Message----- >> From: cctalk-bounces(a)classiccmp.org >> [mailto:cctalk-bounces@classiccmp.org]On Behalf Of der Mouse >> Sent: 05 December 2003 22:29 >> To: cctalk(a)classiccmp.org >> Subject: Re: Space Invaders returning to arcades... >> >> Also true - and don't forget that while you can maybe put together a >> MAME box running the game for $500, you need not only that but all the >> original human-interface devices (joystick etc), _and_ they need to be >> able to stand up under years of arcade-level punishment, including >> exasperated gorillas getting fed up with the game and shoving the >> joystick hard enough to shake the whole box. > >Hahahaha! You can buy new PCs for less than $500! > >http://www.ultimarc.com/ > >and in particular: > >http://www.ultimarc.com/orderp.html > Hi Sounds like you should go into the business. You seem to have it all worked out. I'm sure you can undercut the ones who've been doing it for years and just barely staying in business ( most have gone out of business ). Good Luck. Dwight

22 years, 4 months

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pdp8a

by deritod＠yahoo.com.ar

Hi , my name is Dario from Argentina I have a PDP8A and a ASR33 teletype, but not work. I built an interface becase I want load the Orient program without the ASR33, the communication works OK, and I have the orient in my PC , but when I try load to the PDP , it not work, The manual said that if the orient is ok load , the PDP give me a message ?00.00 Orient xx.K but nothing happened. Can you help, me? or if you have some experienc e please tell me thanks ------------ Los mejores usados y las m?s tentadoras ofertas de 0km est?n en Yahoo! Autos. Compr? o vend? tu auto en http://autos.yahoo.com.ar

22 years, 4 months

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Intellectual property issues (was: WHERE DID ALL THE SYSTEMS PROGRAMMERS GO?)

by jack.rubin＠ameritech.net

given the MS FAT discussion, this may not be off topic - http://www.newtechusa.com/PPI/faq.asp

22 years, 4 months

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Space Invaders returning to arcades...

by dwight.elvey＠amd.com

>From: Witchy <witchy(a)binarydinosaurs.co.uk> > >> -----Original Message----- >> From: cctalk-bounces(a)classiccmp.org >> [mailto:cctalk-bounces@classiccmp.org]On Behalf Of Dwight K. Elvey >> Sent: 05 December 2003 21:44 >> To: cctalk(a)classiccmp.org >> Subject: Re: Space Invaders returning to arcades... >> >> One thing to consider. If they were making so much money that it >> was a overwelming gouge, other would compete against them. Arcade >> machines are not cheap to make. Doing 10K units of a 10 year lifetime >> is not a large run. The CPU board is most likely designed in house >> because they can not depend on outside vendors to keep an obsolete >> design. Any uP design is obsolete within 6 months to a year. They >> need a longer product life. Knowing the methods used to create >> these arcade machines, I would say that $3K is a little on the >> high side but not all that much. One wouldn't stay in business doing >> these for anything less then $2.5K. Maybe you know something I don't. > >Hang on, given current technology are you saying that these people are >spending time and money actually DESIGNING new boards for 20 year old games >that can run on mobile phones? >Even paying the original licensors a fee per cab you can get Space Invaders >running on an old 386 for next to nothing. The controllers and buttons are >readily available so you could do it yourself for a very small fee. You miss the point. That board source needs to be around for 10 to 15 years. The only way to do that is to make them your self. Actually, they often use a common board for many different models. They are still custom and there isn't a truly economical to get around this. It is the nature of the business. In the near future, you'll see things changing, even for video. Next year the vga signal you depended on might not be there. It cost quite a bit to change what one is doing, even if it seems obsolete to someone on the outside. Dwight > >Has the point here gone rushing past my rather tired head? > >cheers > >PS I've just knocked an entire glass of red wine over my legs, testbed PC >(fortunately not running), 2 production machines (fronts only), floorboards, >stuff lying round waiting to be sold etc, components, docs and even my >powermac G3, which should be out of harms way. Suffice to say I'm not happy. > >-- >adrian/witchy >www.binarydinosaurs.co.uk - the online computer museum >www.snakebiteandblack.co.uk - ex-monthly gothic shenanigans :o( > >

22 years, 4 months

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Space Invaders returning to arcades...

by RCini＠congressfinancial.com

Interesting clip. I hadn't seen it before. At least this is the real game. If you look at Hammacher-Schlemmer and the holiday issues of similar catalogs, they are selling multi-game units (like Galaga and Qix, MacMan/Ms. PacMan for example) for $3000. I've seen these hybrid games up close at the Fortunoff store near me and they're smaller than the real arcade games and have crappy decals on the front and sides. Even the coin door on the front is a decal -- not that you'd need a real coin door for use at home. For much less you can build a MAME machine (I have a MAME machine in progress) and have as much or more fun with it. Now, in Namco's defense, parts alone, using eBay and Happ Controls as a proxy, might cost $700 or so. I'd figure that $999-$1199 would be a good retail price. Rich Rich -----Original Message----- From: cctalk-bounces(a)classiccmp.org [mailto:cctalk-bounces@classiccmp.org]On Behalf Of Bryan Pope Sent: Friday, December 05, 2003 1:25 PM To: cctalk(a)classiccmp.org Subject: Space Invaders returning to arcades... Check this out: http://www.cnn.com/2003/TECH/fun.games/12/05/space.invaders.reut/index.html 10,000 Space Invaders units to be sold in the US for $2,772 apiece. But because of inflation, the cost per game is now going to be 50 cents! <rant> Are these people on crack?! What development time went into this? What costs are they recouping? Or do they just want to gouge the classic gamers? </rant> Cheers, Bryan Pope

22 years, 4 months

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IBM 5216 printer

by bmachacek＠pcisys.net

I'd like to find out a little more about the IBM 5216 Wheelprinter I just received. What computers did it work with? There are only 2 female input connectors on the back, one is marked "T" and the other one "P". Anyone have information on the type of computers this unit was setup to work with? TIA for your responses. Bill Machacek Colo. Springs, CO

22 years, 4 months

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analog computer patch panels

by tomj＠wps.com

Hmm, I've got a couple of patch panels identical to the TR-48 shown on that URL. I got them from Los Alamos Sales, Ed had some huge, multi-rack analog computer that got broken up and scrapped. It was huge, probably a dozen racks or more. I took home two panels only. I was going to just hang them on the wall, they're nice to look at.

22 years, 4 months

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IBM 5216 printer

by Innfogra＠aol.com

IIRC the IBM DisplayWriter. The cables were thin and came to a non standard D sub 9 pin. There was a cut sheet feeder that might plug into the other port. It has been a long time. I think the System 23 also may have connected to that printer also. There weren't many IBM daisywheel printers. I had a lot of those go through my hands about 15 years ago. Paxton Astoria, OR

22 years, 4 months

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HP 2000 BASIC help / TREK73

by Zubla2001＠aol.com

> What does '14 in a PRINT statement, in front of a quoted string, mean > (eg in PRINT '14"SULU")? I wondered if it were something like PRINT > TAB(14)"... but there are TAB()s elsewhere. A control character, > perhaps? If cursor or screen control, are they octal or decimal (I'd > guess decimal) and is there a table anywhere? decimal. The table in the back of the Access BASIC manual is excellent. Another response to this thread (November) listed a URL. Of interest to people pulling apart the HP as well as programmers: My friends and I once noticed using Access functions (CHR$(7)?) instead of the single quote ('7) actually took up more storage room. There was a maximum line length of somewhere between 254 and 256. Using the single quote (for control chars) allowed for much much longer lines. So something is different in the tokenizing and it also explains why a less readable format was used. Although you get used to it. :-) ~Zubla

22 years, 4 months

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pdp11/73

by uadanin＠amrmc.com

Hi Robert, Is it not too late for your offer about pdp11/73? Regards, Uri Adanin AMR Medical Center LLC, 1065 Lake Cook Rd., Wheeling, IL 60090 w. 847-459-9441, ext. 2131 c. 847-691-6327 E-mail: uadanin(a)amrmc.com

22 years, 4 months

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FAT file system now licensed by MS ?

by RCini＠congressfinancial.com

I think that the 1976 reference may come from the following. Microsoft had Stand-Alone Disk BASIC, which may have been available in 1976 (I don't have release dates handy), used a file system that might have been the beginnings of the FAT scheme. Then, I found this reference in a June 1983 article written by Tim Paterson called "An Inside look at MS-DOS". In that article, there's a sidebar called "A Short History of MS-DOS" (some paragraphs deleted for brevity): "...In May 1979, Seattle Computer made the first propotype of its 8086 microprocessor card for the S-100 bus. There were brief discussions with Digital Research about using one of Seattle Computer's prototypes to aid in developing CP/M-86, which was to be ready "soon."..." The article continues: "Microsoft had already started a strong 8086 software-development program. The firm was ready to try the 8086 version of Stand-Alone Disk BASIC, which is a version of its BASIC interpreter with a built-in operating system. During the last two weeks of May 1979, this BASIC was made completely functional using the hardware that Seattle Computer provided for Microsoft." Continuing: "Seattle Computer shipped its first 8086 cards in November 1979, with Stand-Alone Disk BASIC as the only software to run on it. The months rolled by, and CP/M-86 was nowhere in sight. Finally, in April 1980, Seattle decided to create its own DOS." And more: "The first versions of the operating system, called QDOS 0.10, were shipped in August 1980." More still: "In the last few days of 1980, a new version of the DOS was released, now known as 86-DOS version 0.3. Seattle Computer passed this new version onto Microsoft, which had bought the non-exclusive rights to market 86-DOS and had one customer for it at the time." "In April 1981, Seattle Computer Products released 86-DOS version 1.00, which was very similar to the versions of MS-DOS that are widely distributed today." So, who invented the FAT filesystem we know today? Microsoft (through Stand-Alone Disk BASIC)? Seattle Computer (through 86-DOS)? To paraphrase Artie Johnson..."Very interesting". Rich -----Original Message----- From: cctalk-bounces(a)classiccmp.org [mailto:cctalk-bounces@classiccmp.org]On Behalf Of Vintage Computer Festival Sent: Thursday, December 04, 2003 2:14 PM To: General Discussion: On-Topic and Off-Topic Posts Subject: Re: FAT file system now licensed by MS ? On Thu, 4 Dec 2003, Fred N. van Kempen wrote: > To my own laughter and surprise, Microsoft now claims to have the > rights to the FAT file system, and intends to execute on a licensing > program for it, with obvious results. > > Wasnt FAT done (in crude format) by MP/M or CP/M86 already *before* > Microsoft? They claim it was developed by them in 1976, but I seem > to recall it being mentioned before that, around 1974-ish or so, > by homebrew people (such as CP/M et al.) ?? > > --f (who runs FAT on his own PDP-11 OS ;-) It's a total joke. First of all, the patents referenced on their FAT licensing website: http://www.microsoft.com/mscorp/ip/tech/fat.asp ...are for long filenames. They have no patent on FAT, and for good reasons: 1) software patents were not allowed at the time that FAT was implemented in MS-DOS, and 2) FAT was basically lifted from another OS. I have no idea why MS would be so stupid as to think people are going to fall for this, which is basically a sad-assed ruse. Also, I highly question the history they are promulgating. They claim they developed FAT in 1976. That seems a bit early. I could be wrong. Damn losers. -- 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 ]

22 years, 4 months

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"Woz" IIgs, & Dynabyte computers...

by runtime＠wzrd.com

I know I bought a NEC 8201 in the fall of 1984, and as I remember they had just hit the shelves. Subsequently I bought 13 or 14 more for a special purpose use and kept them in service through 1995...still have some of them. Don Mitchell Runtime Services

22 years, 4 months

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I have an AS/400 in my trunk...

by Zubla2001＠aol.com

First message, second try. ?Sorry if I mess up. > If anyone ever comes up with some real system tapes, please save them! > The lack of "early" IBM software is really annoying (not only AS/400, but > for the earlier S/3x and S/3 lines, and even the mainframe lines). > > William Donzelli Even that early model had some sort of emulation or compatability modes for S36 and S38. While there may not be a Linux (or AIX) port, there was supposed to be a way to run... NT? from inside some sort of AS400. ?Maybe post-CISC? The AS400 was primarily for RPG and COBOL, but did have other languages. In fact it had C, but I was never quite sure how a ported C program would work with their batch-IO to terminals... The batch/script/command language is very strong and fills several manuals. Manuals! ?200?+ 3" manuals. ?But available on CD for PC or for AS400. >From IBM of course. Nothing at all wrong with having an AS400 reel tape drive... That'd do it for me except for the lic cost. Then Token-ring to an 8228 to a PC with a TR card and a nic. There was a way to start subsystems beyond the OS, but you didn't want to challenge a 9404 too much. Other comm cards you might see could be one of V.35, X.21 or EIA (~RS232) And of course twinaxial connections to the console, printers and CRTs. Have fun. ~Zubla

22 years, 4 months

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any infos about HP 64000 hard disk structure ???

by hpd＠demus.de

Hello ! i'm trying to decode the disc structure of a HP7912 hard disk attached to a HP 64000 uC System. build in 1985! yeaaah I managed to copy the HP7912 sectors on a MO-diskc SCSI on series hp 9000 / 300. i read in the MO disc image on a PC. now i have a 54MB image file. has anybody some infos about structure and tables of the directory of the HP64000 disc format ?? thanks peter -- DEMUS DATENSYSTEME GmbH ? Steinbergstr. 24 D-30559 Hannover ? Germany Tel +49-511-95448-0 ? Fax +49-511-95448-44 http://www.demus.de ? mailto:info@demus.de

22 years, 4 months

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PDP11/24 M7133 / KDF11-UA Documentation

by aek＠spies.com

Is there any documentation of this board online? I didn't find any documentation on Al Kossow's site. -- www.bitsavers.org/pdf/dec/pdp11/MP01018_1124schem_Aug80.pdf

22 years, 4 months

2
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BreezeNet data/power modules

by vcf＠siconic.com

I have a number of BreezeNet data/power modules. This is a two module set that allows you to run both data and power over a CAT5 cable so that you can power, say, a WAP in a weird location where there is no power for it. It comes with a power supply that puts out 15V AC @ 1.8A (input = 100-240V). The power supply plugs into a "local" module with data in and data/power out. You then plug in a CAT5 cable from data/power out to the "remote" module. The remote module has a data port (which you plug your WAP or remote router into) and a power out jack. Very nifty if you need to bring power to a device that has none nearby (like in a ceiling). These are basically new in the box. I'm asking $5 each plus shipping. Thanks to Lyle Bickley for helping me figure out what these things are :) -- 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 ]

22 years, 4 months

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FAT file system now licensed by MS ?

by MGemeny＠pgcps.org

I think Hans summed it up quite well, but perhaps didn't go far enough with his thought. Hans Franke wrote: >What pisses me of most is that they want licence for media if they >are formated with FAT. Beside that this is even more a joke than >the Rambus scam, it sets the stage that not only software (and the >underlaying algorythm) is protected by a patend but also the data >generated by this algorythm! >Let's just continue the idea: Assumeing MS had a patent for some >parts of Word, under the above circumstances, every document written >using Word, stored on a media will be the same ... so does MS own >what I write, because I'm using their programm? So, if I happen to be the manufacturer of digital cameras, and I write a program that rearranges the bits on a flash card that was formatted by a microsoft operating system, and that operating system is fooled by my arrangement of the bits, I have to pay microsoft? Even worse is the manufacturer of media. Who is to say that the manufactured is not using a microsoft operating system to format the media in the first place. So now he has to pay a quarter of a US dollar for each piece of media that he formats with his microsoft operating system. When will this trickle down to charging the end users for each disk they format, or for each document they create? "Well, it's only the big manufacturers they are going after." Right? "In Germany they first came for the Communists, and I didn't speak up because I wasn't a Communist. Then they came for the Jews, and I didn't speak up because I wasn't a Jew. Then they came for the trade unionists, and I didn't speak up because I wasn't a trade unionist. Then they came for the Catholics, and I didn't speak up because I was a Protestant. Then they came for me - and by that time no one was left to speak up." Pastor Martin Niemoller, Dachau, 1944 Quick! Somebody contact the press! Oh, that's right, we're not supposed to talk to the press. ;-} And besides, such a story in the press would probably just make microsoft stock go UP! Now that's a sick thought. Mike.

22 years, 4 months

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MOTOR RUN VS. MOTOR START

by Lee.Davison＠merlincommunications.com

> The drawing does look as though it is in series with a > second winding. Then it would seem to be being used to create a rotating magnetic field. In this case too samll a value will lead to a reduction in full speed torque and possible speed variations, and too large a value will reduce the low speed torque (i.e. when the motor is running up). However having said that the value will be a compromise anyway and +/- 20% either way shouldn't hurt enough to notice. Lee. ________________________________________________________________________ This e-mail has been scanned for all viruses by Star Internet. The service is powered by MessageLabs. For more information on a proactive anti-virus service working around the clock, around the globe, visit: http://www.star.net.uk ________________________________________________________________________

22 years, 4 months

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MSD docs

by me＠davidarice.net

Hi - Did you ever find MSD SD-2 maintenance manual? I have one that works great and would like to keep it that way . . . Thanks David A. Rice me(a)davidarice.net www.realhickorywind.com -------------------------------------------------- If you think education is expensive - try ignorance. --------------------------------------------------

22 years, 4 months

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MOTOR RUN VS. MOTOR START

by Lee.Davison＠merlincommunications.com

> We used to have to put "motor run" capacitors on all our > large equipment (3 phase) to get our power factor closer > to one (unity). However, this system is a single phase > system. I don't think the same issue is being addressed > by the run capacitor. It is, like the capacitor in flourescent light fittings the run capacitor on a motor is (usually) just for power factor correction and it matters not if it's 3 phase or single. The give away is if it's across the supply or in series with a separate winding. If it's across the supply then it's for PFC. Lee. ________________________________________________________________________ This e-mail has been scanned for all viruses by Star Internet. The service is powered by MessageLabs. For more information on a proactive anti-virus service working around the clock, around the globe, visit: http://www.star.net.uk ________________________________________________________________________

22 years, 4 months

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MOTOR RUN VS. MOTOR START

by TRASH3＠splab.cas.neu.edu

Well it's been a while, I just remembered something else about run and start. We used to have to put "motor run" capacitors on all our large equipment (3 phase) to get our power factor closer to one (unity). It wasn't ever used in that situation for creating a second phase, as we were using 3 phase motors. However, this system is a single phase system. I don't think the same issue is being addressed by the run capacitor. joe heck btw, I checked for "motor start" capacitor on google and got a nice place to buy caps. http://www.toad.net/~jsmeenen/boom.html is a nice picture of both types of caps in a pool motor application End of returned message

22 years, 4 months

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dumb terminal wanted

by TRASH3＠splab.cas.neu.edu

how small and how dumb do you want a terminal. I have some "transterm" terminals that are two lines by 16 characters, LCD. membrane keyboard. joe heck

22 years, 4 months

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100MFD 55V

by dwight.elvey＠amd.com

>From: vrs <vrs(a)msn.com> ---snip--- > >Here is my problem with the claim that a couple of people have made, that >these are "motor run" caps: They are clearly filled with paste, not oil (as >some has been forced out through the emergency vent hole), and they seem to >be marked with a "-" near one of the solder lugs. That strongly suggests to >me that these are electrolytic "motor start" capacitors. > >Am I missing something? > > Vince > Hi As I think Joe mentioned, the electrolytic capacitors are usually used as motor run capacitors and not starting. These are non-polarized. Starting capacitors are usually oil/paper ( newer don't have PCB's ). This is because the starting capacitors require more current that would blow up a run capacitor. Run capacitors are used to help maintain efficiency of the motor while running. They help to keep a rotating field and help to pull the inductive load back to a resistive load from the AC side. Dwight

22 years, 4 months

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100MFD 55V

by dwight.elvey＠amd.com

>From: vrs <vrs(a)msn.com> > >> These are oilfilled AC capacitors. Not an electrolytic capacitor. They are >> usually used together with the motor. Phase-shift capacitor for example to >> generate a second phase on a single phase system. >> > ---snip--- >Hmm...Doesn't look oil-filled to me; more like a cream-colored paste. Looks >just like an electrolytic which has blown crud out through the safety vent, >which has then hardened over the years into a crust. Under the crust is a >cream-colored substance with a texture like hardened toothpaste. > >I do know that motor start and motor run are different and incompatible. ---snip--- Hi This is most likely an electrolytic capacitor, it is just that it is a non-polarize electrolytic. These are special purpose capacitors. If you place a regular electrolytic capacitor into this circuit it would blow up. You can use a pair of electrolytics mounted back to back of equal value and something like a 10 meg resistor in parallel with each to keep them balanced. The capacitor values need to have the full voltage rating each and the value needs to be 2 times the desired value. Dwight

22 years, 4 months

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100MFD 55V

by TRASH3＠splab.cas.neu.edu

Motor-start and motor-run are different but the same. A motor-run capacitor is AC and is connected all the time. A motor-start capacitor is connected usually through a centrifugal switch (and starting winding) so it is only connected during spinup. There are many motors that have centrifugal switches and starting windings without caps. and most of the caps used are fulltime, that is run caps. Now, my definitions may not be everybodys definitions, but that was how I was brought up when I did motor repair and rewound armatures. The giveaway was the original spec stated 60 cycle, which is a motor capacitor. run or start is not significant, but if it said 60 cycle, then it cannot be a DC cap with plus and minus. As stated in a previous message, the capacitor "creates" a second phase so you can get the motor to spin. Too little or too much capacitance and the created phase is not in the proper angle to provide the right rotation. again, make sure you get at least the minimum voltage, and getting a cap with more voltage spec is o.k., if you cannot match the capacitance, I think I would err toward more rather than less. Joe Heck

22 years, 4 months

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100MFD 55V

by dwight.elvey＠amd.com

>From: vrs <vrs(a)msn.com> > >Hi, > >I've got an electrolytic I pulled from my TU56 drive because it had a big >crusty electrolyte extrusion through the vent plug in the top. The >capacitor is marked "SPRAGUE 100 MFD 55V - 60CY A5030". It is 2" in >diameter and just over 4" tall, with two solder lugs on top. I think they >are connected to the drive motors. > >I have looked for replacement electrolytic, but they all have way more >capacitance or way more voltage rating, and are nowhere near the right >physical dimensions. Is there a source for exact replacements? Hi Also, be careful, this sounds like a non-polarized cap. Rather then checking with electronic supply companies, check with people that do electrical and motor suppies. Dwight > >If not, should I just get one with the right diameter for the mounting clamp >and the right capacitance, but some huge voltage rating, or is the voltage >rating more important and I should beef up the capacitance instead? Or do I >have to get both those right, and substitute a little dinky device? > >Thanks! > > Vince > >

22 years, 4 months

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Mototrola MEK D2?

by aek＠spies.com

Found this old posting from you, do you by any chance still have the MEK-D@ manual? -- www.bitsavers.org/pdf/motorola/MEK6800D2.pdf

22 years, 4 months

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Motorola MEK D2?

by eric_pierce＠sympatico.ca

This is a real long shot, but hey... Found this old posting from you, do you by any chance still have the MEK-D@ manual? I am trying to get copies of key sections. Thanks Eric www.va3ep.net ------------------------------------------------------------------------ ------- John Honniball cctech(a)classiccmp.org Tue Aug 13 09:09:38 2002 Previous message: Check out the Workmanship... Next message: Check out the Workmanship... Messages sorted by: [ date ] [ thread ] [ subject ] [ author ] ------------------------------------------------------------------------ -------- Philip Pemberton wrote: > A MOS Technology/Commodore KIM-1? Lucky you - I've been after a MOS KIM for > ages. They're like the proverbial rocking horse droppings (or gold dust) > over here in the UK. Same goes for the Synertek SYM-1. Well, rare or not, I have both a KIM-1 and a SYM-1. No sign of the AIM-65, though. I've also got a 6800 development board, the Motorola MEK-D2. -- John Honniball coredump(a)gifford.co.uk --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.545 / Virus Database: 339 - Release Date: 11/27/2003

22 years, 4 months

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HP 4952A Software

by richard＠girling.net

Hi John I have picked up on an old thread in Classiccmp so you may not get this or still be interested. In brief have got hold of a copy of the utility disc also a data library disk (coppied with LIFUTIL to a pc emailed & then converted back). Problem is the applications VT100 etc report "Application Denied" when run, copy protection? Any interest in the discs / sorting the copy protection? Richard

22 years, 4 months

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KFQSA docs and MDM (was RE: Help needed:Setting up a KDA50)

by cheri-post＠web.de

> > On Wed, 3 Dec 2003, Pierre Gebhardt wrote: > > > Megan, do you know the jumper settings for the KFQSA ? > Although I'm not as sweet as Megan, > > > Or anyone else ? > oh.. this would apply though :) > > > Yesterday I did another try. > > The KDA50 works now at address 172150, with the KFQSA removed. The command "show qbus" > > finally lists the controller. > Yay! > > > Antonio named I link for KFQSA documents but they don't have documents online for it. > > How do I have to set jumpers for this board? > You dont have to, all programming is done in software. But, since > you asked: > > http://www.pdp11.nl/Documentation/NewMDS/VOL002/0346.pdf > Wow, thanks alot Fred and Jochen! Configuring the KFQSA will be easy now. A the moment, I don't have a lot of time for BSD but I'll tell you when the rebirth of my VAX4000-200 with NetBSD is complete ! Pierre ______________________________________________________________________________ WEB.DE FreeMail wird 5 Jahre jung! Feiern Sie mit uns und nutzen Sie die neuen Funktionen http://f.web.de/features/?mc=021130

22 years, 4 months

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LynxOS?

by dickset＠amanda.spole.gov

Hi, Does anyone on the list know anything about LynxOS (a semi-real-time Unix)? Linux identifies the partitions as Venix 80286 (type 40). I'm especially interested in a way to mount these partitions under Linux. I have some experience with Venix on the Pro-350, but not much with Intel Venix. Thanks for any pointers, -ethan -- Ethan Dicks, A-130-S Current South Pole Weather at 04-Dec-2003 08:10 Z South Pole Station PSC 468 Box 400 Temp -17.6 F (-27.6 C) Windchill -56.5 F (-49.2 C) APO AP 96598 Wind 13.4 kts Grid 083 Barometer 692.8 mb (10147. ft) Ethan.Dicks(a)amanda.spole.gov http://penguincentral.com/penguincentral.html

22 years, 4 months

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information about 80387ex-33

by Edward.Tillman＠valero.com

What brand is the chip? Rockwell used to make a 387dx copro that worked with almost anything, but I haven't seen one since running my old Packard-Bell 386/12 back in '90... Cheers... Ed Tillman Store Automation Tech Support Specialist Valero Energy Corporation San Antonio, Texas, USA Office: (210)592-3110, Fax (210)592-2048 Email: edward.tillman(a)valero.com <mailto:edward.tillman@valero.com> -----Original Message----- From: zaheem khalid [mailto:zaheem50@yahoo.com] Sent: Wednesday, December 03, 2003 10:35 PM To: cctech(a)classiccmp.org Subject: information about 80387ex-33 hi , I didnot find any information on 387ex coprocessor , not even the pinouts, I am trying to interface the coprocessor with 386ex.first i was was looking for the 387sx as mensioned in the intel 386ex manuals.but the suuplier gave me the 387ex of which i have never heard off. if any one has nay information on this misterius coprocessor please inform me ,i will me very thankfull, i am also a short on time . thanks --------------------------------- Do you Yahoo!? Free Pop-Up Blocker - Get it now

22 years, 4 months

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Colorado 250 MB tape drive

by aek＠spies.com

QIC-80 is the format. The cartridge is DC2120. I have an entire bookshelf full of them - backups from when I ran a bbs for years. -- If you care about what's on them, read them before all of the pinch rollers on your drives turn to goo.

22 years, 4 months

5
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dumb terminal wanted

by jack.rubin＠ameritech.net

Anyone have a "glass tty" that you would be willing to part with? The smaller and dumber the better - Perkin Elmer Bantam, ADM-3, etc. UPPER/lower case option nice but not necessary. My SOROC is great but just too big and heavy to lug around and I don't want to fiddle with terminal emulation - just plug and go. No emulations, no graphics, no detached keyboards, no fat. Thanks. Jack Rubin Wilmette, Illinois USA

22 years, 4 months

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information about 80387ex-33

by zaheem50＠yahoo.com

hi , I didnot find any information on 387ex coprocessor , not even the pinouts, I am trying to interface the coprocessor with 386ex.first i was was looking for the 387sx as mensioned in the intel 386ex manuals.but the suuplier gave me the 387ex of which i have never heard off. if any one has nay information on this misterius coprocessor please inform me ,i will me very thankfull, i am also a short on time . thanks --------------------------------- Do you Yahoo!? Free Pop-Up Blocker - Get it now

22 years, 4 months

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Emulex UC04 manual

by kiers＠original.xs4all.nl

Hi Mark, In http://www.classiccmp.org/pipermail/cctech/2002-November/004634.html I see you're looking for an Emulex UC04 manual. Did you find it? If you have it available electronically, can I please have a copy? The reason I ask is that I just bought a PDP11/73 and have a problem getting 2.11BSD installed. See http://original.xs4all.nl/elfje/ TIA, -- Bert Kiers, !MCSE && 0xFF, frique d'ordinateur

22 years, 4 months

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DAP 610 Looking For A New Home

by aek＠spies.com

> I think this is worth saving. I used a similar DAP at Apple in the late 80s Have tried to contact him, but haven't received a reply. I don't think CHM has one, and it is worth preserving.

22 years, 4 months

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A SIMH Attach question.

by MGemeny＠pgcps.org

Greetings all, Is there a way to change device attachments without stopping the simulation? This would be quite helpful in a time sharing environment for handling virtual printouts, virtual paper tapes, and virtual magnetic tapes. Thanks in advance, Mike.

22 years, 4 months

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DAP 610 Looking For A New Home

by Innfogra＠aol.com

In a message dated 12/3/03 12:16:03 PM Pacific Standard Time, ard(a)p850ug1.demon.co.uk writes: > At the back is a single slot (looks to be VME, but I wouldn't put > money on it) contains a parallel interface card that links to a DR11-W > type interface in the host. Not SCSI. Maybe some later ones were SCSI, > though Tony is right. SCSI is for a Sun connection. VAX is different. Following is more from the referenced docs: Each node of the machine effectively consists of a single bit processor, optional floating point accelerator and node memory. The DAP 510 is small enough to fit under a desk, while the DAP 610 is housed in a standard EIA rack cabinet. Both DAP models can be hosted by Sun or DEC VAX computers and workstations. The DAP can be connected to a Sun host via the SCSI interface. Connection to DEC VAX systems is via DR11W or DRB32 interfaces. Connection to the Aptec IOC is supported as well as direct connection to VME bus. DAP 510 DAP 610 Array size 32 x 32 64 x 64 Array memory 8 Mbytes 16 Mbytes (max. of 128 or 512 Mbytes) Code store 512 Kbytes 512 Kbytes (max. of 4 Mbytes) Instruction rate 10 MHz 10 MHz host Sun or VAX Sun or VAX Size 17 x 13 x 20 in. 45 x 25 x 38 in. The present DAP systems are third-generation machines which started with a 64 x 64 array originally installed at QMC (Queen Mary College, University of London). The QMC machine, which had an effective cycle time of 250 nsec, proved highly adaptable to a wide range of numerical problems based on partial differential equations. The performance on large-scale Monte Carlo simulations in lattice gauge theory and molecular dynamics was found to be exceptional and, in some specialized applications such as the Ising model, the DAP outperformed a CRAY-1 by a factor of 10.

22 years, 4 months

2
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AM29818 pipeline register/diagnostic register/writable control store?

by rigdonj＠cfl.rr.com

I stopped by a scrap place and picked up an interesting looking board. It has a number of AM29818 "Diagnostic Resisters" on it. I wasn't familar with them so I looked them up on the net and found this <http://www.national.com/pf/54/54ACT818.html> for an equivelent part. Is there anybody here familar with these that would care to tell me what they are in plain english? Joe

22 years, 4 months

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