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101090 discussions

Honeywell/Bull D120 cartridge drive infor wanted.

by jos.mar＠bluewin.ch

If anyone on the list has a user-, or even better, a maintenance manual for a Bull D120 cartridge drive I would like to hear from them. ( a 10Mb cartridge drive ca. 1980 ) Spare parts, empty cartridges or a complete replacement part would be more than welcome. They will form the basis for a new attempt to bring my ETH Lilith back to live..... Jos Dreesen

23 years, 4 months

S-100 docs for sale . . .

by MTPro＠aol.com

Hello, I hope no one minds if I post this list of a few important documents that I think will interest the group, I don't think eBay is the best venue for them, and I'd rather someone from the group get first shot. Please just respond back to me directly. Below, just $5 each plus shipping: - Netronics 64K S100 Memory Board "JAWS" - approximately 20 pages stapled with assembly instructions and lots of schematics - no date, maybe 1978ish? - Solid State Music 2P + 2S I/O Board - approximately 20 pages stapled with assembly instructions, function check, setup and schematics - 1977. - Dutronics 8KLST/4KLST Memory Board - approximately 7 pages stapled with assembly instructions and schematic - no date, maybe 1976ish? - Dynabyte 32K Memory Board - approximately 12 pages stapled with nice heavy paper covers, professional inside. Includes general and operating instructions, memory test program and excellent schematics - 1978. - Canada Systems CL2400 Real Time Clock - Two manuals; one approximately 12 pages (Assembly Manual - assembly instructions and checkout) stapled with nice heavy paper cover, and one approximately 6 pages (Appendix - parts list, schematics) stapled with nice heavy paper cover - 1977. - Artec Electronics 32K-100 Memory Board - approximately 16 pages stapled with assembly instructions, parts list, theory of operation and lots of schematics - 1977. Below, just $10 each plus shipping: - Zapple 8K BASIC User's Manual by Technical Design Labs - approximately 25 pages with plastic ring, notebook style binding and heavy paper covers - 1976. - GraphicAdd Board manual for the VDM and SOL, KEA Micro Design - approximately 30 pages with nice heavy paper covers, includes assembly instructions, theory of operations, software package listings (Life animation!) and schematic, some underlining and writing with some tape on covers - 1977. - Cromemco 8K Bytesaver Instruction Manual - approximately 14 pages with very nice heavy paper covers, stapled at spine. Includes assembly instructions, parts list, Bytemover software, PROM data and excellent schematic - 1976. Below, just $15 plus shipping: - Cromemco DazzleWriter Software - approximately 15 pages stapled with memory requirements, paper tape loading instructions and assembly and octal listings - no date, maybe 1976ish? Thank you, David Greelish

23 years, 4 months

MicroVAX II

by pete＠dunnington.u-net.com

On Nov 24, 10:14, Dave Woodman wrote: > Let's try to keep this in accordance with real physical laws:- the > current flowing in the wires will be inversely proportional to the > resistance since the potential difference across them is the same. So far, so good... > The physical principle > that causes the problem is that the power dissipated is proportional to the *square* of the current. In case of any doubters - > > > Ohms Law: > I = V/R > > => V=IR > > Power dissipated: > P = IV > > => P = I(IR) > > So, for example, if one cable/connector pair had twice the resistance of > another, the second would dissipate four times as much power as the > first. Er, no. The current will NOT be the same in each case. If you're going to use mathematical equations to argue, use the right ones :-) Power dissipated (assuming steady-state DC): P = IV and I = V/R => P = V^2/R So if one cable/connector pair has twice the resistance of the other, the second will dissipate twice, not four times, the power (since V is the same for both). But even that analysis is over-simplified. The PSU provides a fixed voltage (assuming it's running within expected limits). Part of that voltage is dropped over the intended load, and part over the cables/connectors. If the resistance of the cables or connectors goes up (which is what happened) then the proportion dropped by the cable/connector combination also rises (and the resistance also goes up slightly as the temperature rises). This makes the situation slighly worse than my maths above suggests, but not as bad as Dave suggested. > If, as other posters have indicated, the bulk of the resistance is in > the connector then the heating effect will be quite localised, and the > home cooking lessons are on. That's still true, of course, but the difference isn't as extreme as you implied. In the cable looms that failed, it was the cables' insulation that melted, but mostly near the connectors, and typically on all the 5V cables, not just the longer ones. I remember some discussions in DECUSERVE NOTES about it. -- Pete Peter Turnbull Network Manager University of York

23 years, 4 months

Gorilla Banana printer

by dlormand＠aztec.asu.edu

Does anybody want one? This is a 300baud serial interface unit. I've tried it and it works. Slow and noisy, square pixels and all. In the off-chance that somebody wants this, it's yours for the shipping >from Tucson, 85711.

23 years, 4 months

OT Bush and Canada

by lgwalker＠mts.net

As a Canadian, I must explain to our US neighbors that the press misunderstood the Canadian official at the Prague meetings who was reported as saying "What a moron" in reference to George Dubya. In some circles up here there is a slang phrase of approval meaning "more on top of it", hipper. I'm sure that's what he meant. And of course Dick Cheyny is also a veritable moron, (in Can. slang terms , of course). Lawrence lgwalker(a)mts.net bigwalk_ca(a)yahoo.com

23 years, 4 months

MicroVAX II

by Antonio.Carlini＠riverstonenet.com

>No. The wires are connected in parallel. They have different lengths and thus different resistance >- the longer the higher. "Current allways uses the way of lowest resistance." So the shortest wire >has to carry a higher current than the other wires. The wire can carry this higher current, but the >connector can't. So the _connector_ heats up and "the magic blue smoke escapes"... >Solution was to use equal length wires (=equal current distribution among wires/connectors) and >better connectors that can carry higher current. I'll try to stop that late night thinking - it never works :-) Antonio

23 years, 4 months

Gorilla Banana printer

by SUPRDAVE＠aol.com

In a message dated 11/23/2002 5:13:13 PM Eastern Standard Time, dlormand(a)aztec.asu.edu writes: << Does anybody want one? This is a 300baud serial interface unit. I've tried it and it works. Slow and noisy, square pixels and all. In the off-chance that somebody wants this, it's yours for the shipping from Tucson, 85711. >> Don't want it, but I remember that being hyped up in the old DAK catalogs. -- Antique Computer Virtual Museum www.nothingtodo.org

23 years, 4 months

MicroVAX II

by rmurphy＠itm-inst.com

At 04:20 PM 11/23/02 -0800, Antonio Carlini wrote: > >only the power harness. And assuming one couldn't find a replacement >power harness for the bad > >one, what would it take to modify/repair the bad one to make it safe to >use? Is it just the matter >of replacing some of the existing wire with >something of a heavier gauge? > >I believe the problem is that the wires are of differing lengths >and hence resistance. Plus they were (or may have been) specced >a tad to near the limit. The end result was that the longest wire >(greatest resistance) heated up the most and eventually went phut, >leaving the other five (or so) to go pop shortly thereafter. My experience - having seen several badly melted connectors - was that the clips on the ends of the orange cable sets don't make adequate contact with the pins on the backplane and power supply. They heat up to the point where the connector shell begins to melt, which begins to oxidize the pins, making more heat due to the additional resistance. This is not due to different lengths - all the wires in the orange cable harness are the same lengths. You can recognize the updated wire harness because it consists of two white blocks on either end of the assembly; the wires are different colors. >So heavier gauge and same length would seem to be required. Nope, it's not the wire that's the problem - it's the connector's bearing area. >OTOH if the problem was that bad (none of mine in the lab ever exhibited >any pyrotechnic tendencies) would it not have corrected itself by now >:-) That depends on how much load you put on the cables. Lightly loaded systems won't ever have a problem. -Rick

23 years, 4 months

Electric Pencil WP ... for the IBM PC!

by r.stek＠snet.net

Fred - the PC version was published in '83. I tracked down one of the authors - Dale Buscaine - and he still has the manual, but has misplaced the disk! I found one reference that Harv Pennington passed away in the early '90's. Also found one employee of IJG who lost his personal TRS-80's when the company folded and its doors were locked. There is a Michael Shrayer who lives outside of LA, but I haven'r been able to find an email address for him. Isn't there anyone out there with a copy?! Bob Stek Saver of Lost Sols

23 years, 4 months

MicroVAX II

by geoffr＠zipcon.net

At 06:23 PM 11/23/02 -0600, you wrote: >Anyone know what the official DEC conclusion was? Sounds like the same problem the the Dec-Rainbow had with it's power supply, and they had a replacement cable that had thicker wire and better IDC contacts, but I always went and bought solder type connectors of the right spacing and appropriate color wire and made my own. the powersupply and mainboard in the rainbow had the same spacing as video game harnesses of the same period....

23 years, 4 months

MicroVAX II

by Fred.van.Kempen＠microwalt.nl

> >Also, what is the story on the FCO on the power harnesses for the > backplane? The two harnesses in > >my BA123 are made of a gray ribbon cable pressed into orange > connectors. > > I *thought* it was the early BA23 power harness that > had the issue, not the BA123. A bit of googling through > newsgroups (comp.sys.dec or comp.os.vms) should nail > that down somewhat. Yes, with the BA23 there were serious risks of fire and fun like that with the _OLD_ power harness. You can recognize those by the color: the power wires are WHITE with colored plugs. The NEW ones have COLORED wires with a WHITE plug. If you have a BA23 with WHITE power wires... burn it! --fred

23 years, 4 months

OT: hard drive making weird noises

by vcf＠siconic.com

Ok, I've googled but have not turned anything up, so I turn to the experts on the list. I have a 60GB IBM hard drive (can't get at the model number and don't want to power down to do so right now). Every once in a while I hear it make the most disconcerting noise. It sounds like a <chirp> followed by a <ka-clunk> followed by another <chirp> and then another <ka-klunk>, all in the span of no more than 2 seconds. It sounds as if its skipping a heartbeat or something. What the hell is going on and how do I defibrilate it? I had a similar problem long ago with another brand of hard drive (Maxtor maybe?) and it required some sort of firmware upgrade that fixed it. I checked into this problem a while ago but did not find anything on IBMs site or through Google. I do NOT need another hard drive crash right now :( -- 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 *

23 years, 4 months

Looking for a DEC VT440 repair manual or schematic set.

by Antonio.Carlini＠riverstonenet.com

>I am looking for engineering drawings and/or maintenance manual for a DEC VT440 terminal. A copy or >scan would be fine. www.vt100.net has the VT420 Pocket Service Guide online. I've never seen the schematics available anywhere. Antonio

23 years, 4 months

OT Bush and Canada

by classiccmp＠crash.com

> ... many of us are still capable of rational thought. I love that line, coming in the middle of such a rant. Yeah yeah, poor taste to respond to my own post, but when I'm not pissed off over the roving checkpoints and assault on civil liberties, I gotta laugh at myself. --S.

23 years, 4 months

Lawsuit over the use of Microsoft's "Word"?

by Robert_Feldman＠jdedwards.com

Looking in the 1991 version of the Word for Windows (TM) User's Guide, "Word" is not listed on the page opposite the Table of Contents as trademarked. In the text, "Word" is capitalized, but not trademarked, as are "Windows (TM)" or "Microsoft (R)". -----Original Message----- From: Jeffrey Sharp [mailto:jss@subatomix.com] Sent: Thursday, November 21, 2002 6:17 PM To: cctalk(a)classiccmp.org Subject: Re: Lawsuit over the use of Microsoft's "Word"? On Thursday, November 21, 2002, Sellam Ismail wrote: > Has there ever been a lawsuit over Microsoft's trademark of the word > "Word" for its word processor that anyone knows of? I don't think they claim 'Word' as a trademark. Neither their web site, the Word XP splash screen, nor the Word XP About dialog have a 'TM' or '(R)' mark around 'Word', yet all three of these things do claim 'Microsoft' with a '(R)'. -- Jeffrey Sharp

23 years, 4 months

CMD Technology Unibus SCSI card

by jpl15＠panix.com

I have managed to latch on to one of the above cards... the sticker on one chip says its a Model CDU-720/TM (sn 2127 BOYA8) and two ROMS have F720Y1A8 and 2A8 respectively. Board copyright is 1989 (in copper) and the silkscreening says 1991 - most of the chips are from '91. It is single-ended only; the differential section is not populated. I have yet to do any Googling, but if anyone has anything on this... I know a nice friendly 11/44 system (sitting to my immediate left) that would dearly love to be able to read CDROMS, SCSI disks, etc.... Cheers John

23 years, 4 months

Index register pop quiz

by vcf＠siconic.com

Wasn't there a discussion about index registers here a few weeks back? My friend Ray Borrill must have been looking over our shoulders because he put together this pop quiz: Q: 1. Who invented the Index Register and about when? 3. What was it originally called? 4. What computer first used one? A: 1. The British invented in in about 1957 or 58. 2. It was originally called the "B-Box" for "Bias Box". 3. I believe it was first used in the Ferranti Atlas computer. -- 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 *

23 years, 4 months

That New Mexico 11/750

by alanp＠snowmoose.com

I was looking through the archives and saw someone in New Mexico was bringing a 11/750 back up. Did he ever mention where it came from? I went to university at New Mexico Tech in Socorro and used an 11/750 there (and that is why I picked up my 11/750). Just wondering if his machine was nmtvax. alan P.S. Anyone know if the machine that was ucbvax is still around. I think it was 94 when it was converted to running the card key system for the Berkeley police department or something similar. I got the "RIP ucbvax" announcement somewhere around here.

23 years, 4 months

Bringing an 11/750 power supply back to life

by alanp＠snowmoose.com

Someone else provided me with a PDF version of the H7104 Power System TD. I can send it to whoever wants to make it available. I was supposed to send the guy some of my extra manual for him to scan a couple years ago, but I got busy with work and forgot and haven't been able to contact the guy since. alan ---Original Message--- From: cctech(a)classiccmp.org To: cctalk(a)classiccmp.org Date: Fri, 22 Nov 2002 05:26:39 -0800 Subject: RE: Bringing an 11/750 power supply back to life >Before I got my VAX, it went down because the power supply went out. I have the print set and the >'Technical Description' document for the power supply and I am fairly comfortable dealing with this >stuff, but I am not an expert. The print sets are already on the web but is there any chance of scanning the PSU TD? Yours is the 3rd or 4th VAX-11/750 with potential PSU issues mentioned here in the last year or so. >If I attempt to repair the power supply myself, is there anything that I should avoid doing so I >don't kill myself? Keep away from the machine and you'll be safe :-) Seriously, think about each step you are taking, don't do anything unless you think you know what you are doing and why, keep one hand in a pocket or behind your back, and (most important I guess) make sure there is someone nearby who knows what you are up to and what to do if they find you writhing on the ground. If you post more details about the symptoms (which, if any, lights come on, what readings you have already taken etc) I expect you'll find this list full of useful advice. Antonio

23 years, 4 months

Classic != IBM AT

by farakhjamil＠hotmail.com

Hi, someone named John is interested in an AT&T Safari laptop. I happen to have one. E-mail me at farakhjamil(a)hotmail.com if you are interested. --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.422 / Virus Database: 237 - Release Date: 11/20/02

23 years, 4 months

early pc with lcd screen

by gil＠vauxelectronics.com

Hi folks: I am curious about early PCs with lcd screens. Something from the early dos days, in a flip-up or clamshell design. Anyone have any favorites? gil ;----------------------------------------------------------- ; vaux electronics, inc. 480-354-5556 ; http://www.vauxelectronics.com (fax: 480-354-5558) ;-----------------------------------------------------------

23 years, 4 months

IBM Microchannel SVGA card

by pat＠purdueriots.com

I've got an MCA SVGA-NI Display Adaptor/A sitting here that I'd like to find display drivers for some OS. Does anyone know where I can find some? I've found the ADF files, but no drivers for any version of Winderz, or OS/2 (or XFree86 on linux, but I'm doubtful I'll find anything to work there). It's FRU number is 71G4877. Pat -- Purdue Universtiy ITAP/RCS Information Technology at Purdue Research Computing and Storage http://www-rcd.cc.purdue.edu

23 years, 4 months

Old computers

by xds_sigma7＠hotmail.com

*snip* > Here's the reason: some time ago a museum allegedly building in >Colorado approached me about taking away some old machines I have... I >promised them, but nothing every came of it and the storage bills are >killing me now that I am retired. *snip* I just want to take the time to make it clear that I am NOT, repeat, NOT the person in Colorado with the museum building that he is speaking of... I'd be willing to be that I know the person who doesn't have their act together who is, though... Will J (including prior text to appease Sellam) _________________________________________________________________ STOP MORE SPAM with the new MSN 8 and get 2 months FREE* http://join.msn.com/?page=features/junkmail

23 years, 4 months

Electric Pencil WP ... for the IBM PC!

by r.stek＠snet.net

I just picked up a manual for Michael Shrayer's Electric Pencil - the first WP I had on my Sol-20. But this manual is for the IBM PC version! I don't recall reading about this at all. Has anyone else come across this, and does anyone actually have a copy of the program? I'd love to be able to run it. (forgive me if I seem lax in responding to any replies - I get the digest version and and am "time-shifted" usually by several days) Bob Stek Saver of Lost Sols

23 years, 4 months

OT: WebTV keyboard

by cb＠mythtech.net

>Does anyone have information on this keyboard? It seems like the RCA >model is being dumped by Circuit City, but It doesn't appear MS is >closing down the service... Any hardware info on the keyboard would >be appreciated! I have one of these... came from a Sony branded WebTV unit I got at a garage sale. I use the keyboard with my DishNetwork satallite decoder (their Dish Player 7000 model... their original PVR model... it has a webTV unit built in along with the ability to pause and record TV... and no, I don't use the webTV features... I wanted the keyboard to make my life easier in spelling out TV shows I was searching for, so when I saw a webTV for sale for $5 I grabbed it). Since I think my decoder is made by JVC, that should tell you that at least all the webTV keyboards are cross compatible and not manufacturer or model specific. Beyond that tiny tidbit of info, I can't help much more until monday. I don't have a little screwdriver at home right now that can open it up to see if there is any better info inside. -chris <http://www.mythtech.net>

23 years, 4 months

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