test-drb

test-drb@ccmp.vtda.org

101090 discussions

by classiccmp＠crash.com

This seller has an (apparently) large stock of these IMS slave CPU boards and has been slowly getting rid of them on eBay. No complaints, though I didn't realize it was a slave as opposed to standalone CPU board when I picked up a pair. Haven't found any info on them, but I'm not looking all that hard either. --Steve.

23 years, 2 months

IMS INTERNATIONAL S-100 80186 CPU board

by rigdonj＠cfl.rr.com

Somewbody was asking about one of these a few weeks ago. Well there's another one for sale on E-bay. It's at <http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=1247&item=3401323596>. But again there are no docs. Joe

23 years, 2 months

Home to remove monumental grime?

by pete＠dunnington.u-net.com

On Feb 11, 18:49, Vintage Computer Festival wrote: > Can anyone suggest a safe way to remove grime that is so old and so thick > that the only way to remove it is to rub it off with your bare fingers? > > I slathered this board in contact cleaner and it didn't do anything. The > grime just remained. If I rub it with my bare fingers then it will > eventually start to rub off and leave little remainders like pencil eraser > droppings. Don't use contact cleaner. Proper contact cleaner contains oil. It's not nearly as bad as WD40, but you don't really want the board covered in a flm of oil. If it's just one board, try washing it in warm water with some washing-up liquid (dishwashing detergent). If the grime is that stubborn, assist the process with a dishwashing brush. Rinse well, dry carefully (shake off or blow off as much water as possible, use some IPA to help remove the water). If you're in an area with very hard water, the final rinse before the IPA might best be done with distilled or deionised water. Don't dry the boards flat, the object is to let as much water (and any minerals dissolved in it) as possible to drain off. Make sure the board is thoroughly dry, which may take a day or two, especially if there are switches or sockets on it, before you try to use it. If that's too much like hard work, or you have a lot of boards to clean, consider using the dishwasher. That's what's used commercially (at least, for small-scale stuff). However, DON'T let it do the drying cycle (too hot for some things) and don't use the dishwasher if the board contains anything that might suffer: transformers, relays (unless hermetically sealed), paper labels that must be preserved, anything with extremely fine wires (core mats), etc. I've been told some very old ICs (grey type) don't like being immersed in hot water. I've never had a problem with that, but YMMV. Some old types of compressed paper boards (Paxolin) may not like the dishwasher either. Same rules apply about drying. -- Pete Peter Turnbull Network Manager University of York

23 years, 2 months

Home to remove monumental grime?

by Edward.Tillman＠valero.com

Sorry about the date... Not only did I get it wrong, but posted it in the US convention... In your terms, it would be 2/9/01, A Sunday, at @ 00:15, CST (GMT -5). Cheers... Ed Tillman Store Automation Tech Support Specialist Valero Energy Corporation San Antonio, TX; USA Phone (210) 592-3110, Fax (210) 592-2048 edward.tillman(a)valero.com <mailto:edward.tillman@valero.com> > -----Original Message----- > From: cctalk-admin@classiccmp.org@PEUSA On Behalf Of Sellam > Ismail <foo(a)siconic.com> > Sent: Wednesday, February 12, 2003 12:11 AM > To: 'cctalk(a)classiccmp.org' > Subject: RE: Home to remove monumental grime? > > On Tue, 11 Feb 2003, Tillman, Edward wrote: > > > From what are you trying to remove the grime? > > A very precious board, so anything not extraordinarily safe is right out. > > > - Pencil erasers work in a multitude of places, on a multitude of > things... > > This would probably be the best bet. In the meantime I used a paper towel > to rub the board where the grime was and it did a decent job, but there is > still a layer of film. > > > **Watch-out rubbing it off with your bare fingers: you can generate ESD > > (static electricity) and fry sensitive circuits/components! > > I removed all the ICs from their sockets. > > > [Note: Water may actually be one of the LEAST harmful cleaners! On > > 11/2/01, a week before the WTC debacle, my primary network server system > > Then that would've been 4/9/01, yes? ;) > > Sellam Ismail Vintage Computer > Festival > -------------------------------------------------------------------------- > ---- > International Man of Intrigue and Danger > http://www.vintage.org > > * Old computing resources for business and academia at > www.VintageTech.com * [demime 1.01a removed an attachment of type application/ms-tnef]

23 years, 2 months

What's better than canned air?

by cb＠mythtech.net

>> At first I filled my tank at my fire house off our breathing air >> compressor, but that got to be a pain, so I bought a small air compressor >> (also at Sears, also about $40) > >You mean one of those small, tankless compressors? I went to Sears last >night, and the cheapest tank-equipped compressor they had was $180. >Considering the potential cheapness of used scuba gear, that's way too much >to pay for air. Anyway, I'd always thought that those little compressors >weren't all that great. Am I wrong? Correct, a tankless compressor. The type sold for filling car tires or whatever. The one I have is pretty good considering the price, but I can't use it directly to run my blowgun. I have to fill my storage tank, and run the blow gun off that. The reason is, the compressor will go to 250 PSI, but it starts at Zero and works its way up. So if I attach the blowgun directly to it, I never get more than about 1 or 2 PSI (whatever pressure it builds up from friction going thru the hose). But, the compressor works very well for filling my 12 gallon air tank to 200 PSI, which then works very well for running my blowgun at 10-60 PSI (depending on where I set the regulator). Although used SCUBA gear is a good cheap option, you have to consider how often you are going to fill it, and how much that is going to cost you. Remember, if you pay $180 for a tank/compressor at Sears, that's it. From then on out, compressed air is more or less free (electricity to power the compressor, and maintenance costs). With a SCUBA tank, you might buy the tank and regulator for under $100, but you will pay for each refill (unless you know someone that has a 3000 PSI compressor... if you are friends with a fireman, ask if their department can do it, we do for friends and the occasional resident if they ask nicely, but then not all FDs have their own breathing air compressor, and fewer have the attachments for filling SCUBA gear) If you figure $8 each, your last $80 is used up in 10 fillings. Not to mention the time/effort/annoyance to have to fill it when it runs out at the worst possible time. But if you don't fill the bottle offen (those bottles hold a LOT of air at 1 atmosphere), then SCUBA might be the cheaper, and certainly quieter option. -chris <http://www.mythtech.net>

23 years, 2 months

What is a HP 98029A Resource Management Interface?

by Innfogra＠aol.com

Well, this is not in my 1981, 82, 84 or 85 HP catalogs. I was wondering what resource it manages, what it plugs into? Any info out there on this? Anyone have a 1983 HP catalog they could check? or maybe a 1980? It works with the HP 9825, 9835 & 9845 series of computers from the early 1980s. On the other end is an Amphenol 50 pin female connector, similar to early SCSI 1 connectors. Pictures at: http://members.aol.com/innfosale/ebay/98029A1A.JPG http://members.aol.com/innfosale/ebay/98029A1B.JPG Any help would be appreciated. Thanks a lot. Paxton Astoria, OR

23 years, 2 months

Looking for info on Honeywell core memory

by erikb＠digischool.nl

Can anybody tell me more about this core memory assembly ? The assembly consists of three wire-wrapped "BICM9" backplanes, one of these holds four 8K x 9 core memory boards, the other two contain several modules with names like "M9INH", "M9SNS" and "M9SEL". Logic on the various boards appears to be mixed TTL/DTL (!) in standard DIL packages, most boards are from 1972. Pictures: http://www.digischool.nl/~erikb/identify.html Thanks in advance, Erik.

23 years, 2 months

Who here has a Planar ELT-320?

by erd_6502＠yahoo.com

Second time around, I won an ELT-320 on ePay... unfortunately, this one has no PSU. Could one of the owners of one on this list e-mail me the pinouts? From the auction I _didn't_ win, it appears that it takes +12VDC @ 2.5A. The question is how/where. The picture seems to suggest that's it's via a DIN-5 connector at the corner of the back side. Thanks for any help. -ethan

23 years, 2 months

New Find: SGI Iris 4D/80

by pete＠dunnington.u-net.com

On Feb 11, 15:07, Patrick Finnegan wrote: > I picked up an Iris 4D/80 'deskside' monster, sans drives, with digital > video I/O capabilites and 'analog' video output and 'VTR' control today > from Purdue Salvage. I don't have a whole lot of documentation on the > system (well, basically none), and about all I do know is that the > processor board seems to be filled with RAM and it has BNC jacks on the > back panel for connection to a monitor. > > Can anyone tell me what versions of IRIX might work with this system > and/or where to pick up a copy? I'd love to see if I could get this thing > running again. It should be capable of running IRIX 5.3, but unless it's unusual and has more than 16MB of RAM, you'd be better off with 4.0.5 (last version was 4.0.5f). Also the graphics may not be supported fully in 5.3, depending on what options you've got. A useful place to start looking for information is the 4DFAQ (also known as "This Old SGI") which you'll find at http://www.geocities.com/SiliconValley/Pines/2258/4dfaq.html Don't forget the comp.sys.sgi.* newsgroups, there are a few people there who either have or fondly remember the 4D series and can help. Look on Ebay (yes, really) for IRIX. 5.3 is more common than 4.0.5 but they do appear fom time to time. I have a 4.0.5 CD which I'd offer to copy, but some kind soul scratched it rather badly and it won't read now :-( -- Pete Peter Turnbull Network Manager University of York

23 years, 2 months

New Find: SGI Iris 4D/80

by pat＠purdueriots.com

I picked up an Iris 4D/80 'deskside' monster, sans drives, with digital video I/O capabilites and 'analog' video output and 'VTR' control today >from Purdue Salvage. I don't have a whole lot of documentation on the system (well, basically none), and about all I do know is that the processor board seems to be filled with RAM and it has BNC jacks on the back panel for connection to a monitor. Can anyone tell me what versions of IRIX might work with this system and/or where to pick up a copy? I'd love to see if I could get this thing running again. Thanks, Pat -- Purdue Universtiy ITAP/RCS Information Technology at Purdue Research Computing and Storage http://www-rcd.cc.purdue.edu

23 years, 2 months

cctalk digest, Vol 1 #391 - 45 msgs

by alhartman＠yahoo.com

The problem with this is that you are totally ignoring the owners rights in this. You are treating a program like physical property when it isn't. It is Intellectual Property. If you do not purchase a license from the author to use his work, you are not entitled to own it. Whether you have made a copy so that nobody else is deprived of their copy is immaterial. Something is lost by him/her. His/her rights to control the distribution of his/her work. If you don't want to buy it, then you shouldn't have it. If you say "F" you, I'm going to take one anyway... What's the point in having copyright/ownership laws? If the laws aren't used, respected and enforced.. eventually people will decide not to create cool stuff because most people will "copy" it (and in your concept, since they won't buy it anyway... No harm is being done...), and the author will recieve little to no compensation for his work. So, those people will decide to do something where they will get paid. If you consistently rob a store, eventually it will go out of business, and you won't have anything to rob anymore, not to mention... Actually buy something you need.... So there is HUGE harm in stealing software by copying it. Most pirates won't admit to it, because then they'd have to admit they are bad people, stealing >from someone/everyone... This is all elementary business/copyright law. Not an opinion. It's the basis of all copyright law. Regards, Al __________________________________________________ Do you Yahoo!? Yahoo! Mail Plus - Powerful. Affordable. Sign up now. http://mailplus.yahoo.com

23 years, 2 months

Who here has a Planar ELT-320?

by ken＠seefried.com

I've got a couple of ELT-320s. The PS brick says Model PSA-124, input 110v-240v(a)1.5A, output 12v(a)4.2A. From: Ethan Dicks <erd_6502(a)yahoo.com> > I know there's others here and on the SBC6120 list that are also > looking for them now. Hopefully the supply will continue to trickle > them out now and then. Hmmm...I'm in on the sbc6120. I was actually thinking of building it into a terminal case...

23 years, 2 months

Disk drive head locking (DEC RA-82 and HP 7920)

by GOOI＠oce.nl

Hi Dan. AFAI can tell from memory, you do the following. 1) find the opening in the front that is a little larger than the other openings (for cooling). 2) Use a screwdriver to push the plate that is behind the opening mentioned in 1). 3) While that plate is pushed in, you can lift the top cover including the electronics of the RA82. 4) In the middle yoy see the large (black) cilinder thing. That is the HDA. When you stand in front of the drive you see a small lever at "6 o clock". Rotate that level 180 degrees to lock the heads. You must lift the level at the end a little to be able to rotate it. On the HDA is a text that tells you the position of the level. (At least, that is the case with my *RA81*. 5) At the right hand side, near the chassis plate of the drive is a handle. This handle releases/sets the drive belt free/tension to the HDA. I do not know if the tension should be released when you transport the drive. If you are not going to use the drive for say, several months, you could release the tension to prevent deforming (flatten) the drive belt at one location. Take care, RA82's are heavy, - Henk. > -----Original Message----- > From: Dan Veeneman [mailto:dan@ekoan.com] > Sent: vrijdag 7 februari 2003 23:04 > To: cctech(a)classiccmp.org > Subject: Disk drive head locking (DEC RA-82 and HP 7920) > > Hello, > > I'm scheduled to pick up a pair of DEC RA-82 drives along > with an HP 7920 drive in the next couple of weeks. > > I don't have any technical documentation for either of these > drives, but I'd be very interested in learning the proper > procedure for locking down the heads on these drives > prior to moving them. If anyone has the steps to take > for either or both of these drives, please drop me a note > or point me to the proper archive. > Cheers, > > Dan > www.decodesystems.com/wanted.html

23 years, 2 months

Dan's Mystery chips

by Innfogra＠aol.com

Dan's Pics at http://www.decodesystems.com/old-ics.html The first white mystery chip is General Instruments ROM. A while back someone posted a link to an IC-IDentification database which I downloaded. It has helped me identify some of these older chip logos. The second mystery chip is an EPROM identical to the ones on a S50 card I just sold on ebay. http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=1247&item=2305518019 Mine were labeled as AMD with an unusual part number. I will leave the pics up for a while longer. Now to go look at Dan's want page.... Paxton Astoria, OR

23 years, 2 months

Dan's Mystery chips

by Innfogra＠aol.com

In a message dated 2/10/03 11:03:12 PM Pacific Standard Time, philpem(a)dsl.pipex.com writes: > Would that happen to have been the IC-ID database program from my website? > Yes, it is. Sorry for the belated thanks but thanks. I use it occasionally and it has helped me identify some of the older chips like Dan's (and mine) General Instrument chips. Thanks for posting the link so long ago, too. Paxton Astoria, OR

23 years, 2 months

asr 33 platen

by n8uhn＠yahoo.com

Good question, french dressing, nah - lol belt dressing - not sure if it even softens the belt but it does swell the belt. armor all - may work - might soften the platen - but it leaves a very slick coating - i wonder if the paper will stay in one place as the platen moves. the type "ball" hammer also has a rubber "button" that slips over it - i know those and the platen were once replacable - try a search for "teletype" on the web. i know the nadcomm meseum http://www.nadcomm.com/ has a link for teletype paper tape and paper on it. the nadcomm page links are near the bottom under the heading "Teletypewriter Supplies" Bill Date: Sat, 08 Feb 2003 14:51:14 -0700 From: ben franchuk <bfranchuk(a)jetnet.ab.ca> To: cctalk(a)classiccmp.org Subject: RE: asr 33 platen Reply-To: cctech(a)classiccmp.org George R. Gonzalez wrote: > I need some suggestions! Should I try ArmorAll (known to soften rubber, > given time), "Platen cleaner", "belt dressing", "french dressing", or what? I would try 'rubber renue' from M.G. Chemicals. Ben. --__--__--

23 years, 2 months

VHS Tapes as storage.

by larry＠laurelnet.com

I believe it was Alpha Microsystems, and IIRC the PC version was sold through Radio Shack. I believe I may still have an old AM-610 (S-100) VCR interface board in the basement if anyone is interested (free to a good home)... Larry > -----Original Message----- > From: cctalk-admin(a)classiccmp.org > [mailto:cctalk-admin@classiccmp.org]On > Behalf Of Andrew Strouse > Sent: Monday, February 10, 2003 1:09 PM > To: cctalk(a)classiccmp.org > Subject: VHS Tapes as storage. > > > Hi, I seem to remember reading in popular electronics, about > software that > would let you use a vcr to backup your computer. I think it > was about 10 > years ago. Does anyone remember or know anything about this. > My searches on > google have turned up nothing. Thanks for any help you can provide! > > Andrew Strouse

23 years, 2 months

PACEMIPPS? (and MIL-STD-1750A)

by ken＠seefried.com

> From: Joe <rigdonj(a)cfl.rr.com> > It says that the MIPPs ICs are standard MIPPs processors > but built to Mil-Standards. That would actually be MIPS processors. The MIPS architecture came out of Stanford and stands for (supposedly) "Microprocessor without Interlocking Pipeline Stages". >>I've actually got some Performance Semi 1750A chipsets...I must think of >>>something to do with them... > > I've got a few as well. I also just found a 1753 (MMU IIRC) Yup. > and 1754 (I/O interface IIRC). Usually called a PIC (peripheral interface controller). Let me know if you ever want to get rid of those...I have several complete chipsets, but can always use spares. > In case you'r enot aware of it, the 1750 is a "standard" > processor that the government is trying to use in all > aircraft and aerospace applications. Well...it was the standard a decade or two ago; the standard came out around 1980, AFAIK. I don't think that there has been a hard requirement for 1750A in military contracts for a long, long time. It's only a 16-bit processor, after all, and almost noone makes it any more (Performance doesn't). It, like the JOVIAL programming language often used to program it, are probably only around for maintenance and upgrades of existing platforms. Ken

23 years, 2 months

cctalk digest, Vol 1 #449 - 55 msgs

by alhartman＠yahoo.com

I put "VCR Backup" into Yahoo!, and this came up... http://www.viscountvideo.com/danmere.htm Hope this helps.. Regards, Al > From: "Andrew Strouse" <kittstr(a)access-4-free.com> > To: <cctalk(a)classiccmp.org> > Subject: VHS Tapes as storage. > Date: Mon, 10 Feb 2003 13:09:15 -0500 > Reply-To: cctalk(a)classiccmp.org > > Hi, I seem to remember reading in popular > electronics, about software that > would let you use a vcr to backup your computer. I > think it was about 10 > years ago. Does anyone remember or know anything > about this. My searches on > google have turned up nothing. Thanks for any help > you can provide! > > Andrew Strouse

23 years, 2 months

Eureka!

by rigdonj＠cfl.rr.com

Well I didn't find the Holy Grail but this is close! I went to a hamfest today and in a box of junk I found the operating program for the HP 9877 Mass Memory unit! That's the box that has up to four tape drives installed and was used to mass duplicate HP 9825 tapes at the HP factory. The 9877 is a rare bird and was only offered to the public for one year (1979 IIRC) but I've got two of the 9877s, Tony D has one and NASA KSC has one but NO ONE has been able to locate the operating program for it till now. The tape APPEARS to be in good condition but you know how HP tapes are :-( The full name of the tape is "Duplicator 9825A/9877" and it's part number is 09877-10002. Other INTERESTING finds (in the same box no less!) were a new DC-300A tape (as used on the IBM 5100 and Tektronix 4051), a Plot 50 tape and Plot 50 Backup tape and an Alignment tape. All three are for the Tektronix 4051 computer. Wahoo! A good ClassiComp day! Joe

23 years, 2 months

What is a HP 98029A Resource Management Interface?

by fmc＠reanimators.org

Innfogra(a)aol.com wrote: > It works with the HP 9825, 9835 & 9845 series of computers from the early > 1980s. On the other end is an Amphenol 50 pin female connector, similar to > early SCSI 1 connectors. WAG from the name: it's a widget to connect a 98x5 into an HP Shared Resource Management (SRM) network. I vaguely recall that there was a coaxial SRM bus cable, and some SRM interfaces had the BNC connector for the bus cable while others had a 50-pin Amphenol connector and expected to have a transceiver-like device between the Amphenol connector and the coax. I've read about this stuff in manuals, but never used it or even seen it in use. And I didn't know you could hook a 98x5 up to it, my readings about it have been in the context of HP9000 series 200 and 300 systems. -Frank McConnell

23 years, 2 months

NuTek One / DUET Mac Clone

by alhartman＠yahoo.com

I have a set of pages about this unit on my website... http://www.geocities.com/macemulist/nutek.html I'd like to buy one of these, if I can find one. If anyone on this list has one in any condition (hopefully working or repairable), please contact me off list... Basically, this was an attempt to clone the Mac including making a Clone OS. If you have one of these, I'd love to get copies of any floppies that came with it, manuals, and a dump of the ROMS even if you don't want to sell yours. It would be interesting to see if the ROMS would work on one of the many Mac Emulators, or could be made to work. Regards, Al Hartman (Macintosh Emulation List Host) http://www.topica.com/lists/MacEmuList Enlightenment means taking full responsibility for your life. - William Blake

23 years, 2 months

How about this price not being accepted for a Magazine

by jrkeys＠concentric.net

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=2155564921

23 years, 2 months

Chip ID on Fujitsu MB15140 needed

by Innfogra＠aol.com

I seem to have a couple hundred MB15140s in their original Fujitsu IC boxes. Does anyone have an idea what they are? Picture at http://members.aol.com/innfosale/MB15140A.JPG Is there a Fujitsu chip list on the Internet available? Google did not bring anything up for me. The date codes are 8809 so they are on topic. I got them from Fujitsu nearly 10 years ago and uncovered them recently. I would not be surprised if they were for the Fujitsu 8" or 14" hard drives since I bought a lot of new parts when they dismantled their 8" line in Hillsboro, OR. Any help appreciated. Paxton Astoria, OR

23 years, 2 months

Electrolytic cap "protection"

by dwightk.elvey＠amd.com

>From: "Bryan Pope" <bpope(a)wordstock.com> > >Hey all, > > Awhile ago there was a thread about electrolytic capacitors popping and >then destroying the motherboard they are on. One of the ideas was to >replace them before they go. > > Now I was wondering about another idea... Would it be okay to encase >the capacitor in silicone gel? Then when the capacitor pops, it wouldn't >spread its electrolyte all over the motherboard. > > But would this cause other problems with heat or something? Would it >further shorten the life of the capacitor? > >Cheers, > >Bryan > Hi There isn't much you could cover it with that would stop a cap >from blowing. The pressures can get to several thousand PSI if there isn't a relief someplace. Wrapping several layers of paper towel around them might be better. This would at least keep the mess from the PCB. There was an article about some bad capacitors made in the last few years. According to the story, someone stole a formula for the electrolyte and the formula was missing some key ingredient ( most likely a depolarizer ). The caps made this way would out gas and rupture. Dwight

23 years, 2 months

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test-drb