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

Cold Fusion, Infinite Capacitors, and other Suppressed Technologies...

by tomj＠wps.com

We're all wrong! Tantalums don't "fail" -- that's not zero-ohms you measure across the two mangled pins -- it's INFINITE CAPACITANCE! I estimate my little 47uF/35VDC tant must now be, oh, a TF or more (teraFarad). Of course it blows the 5amp fuse in the power supply! The TC is measured in YEARS... There's no other explanation possible. None. I am not listening to you.

21 years, 8 months

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TV show on Antikythera device

by news＠computercollector.com

The "Modern Marvels" series (History Channel) is showing this special episode again. Here on the east coast, it's beginning... right now (7pm). ===== Tell your friends about the Computer Collector Newsletter! -- It's free and we'll never send spam or share your email address -- Publishing every Monday(-ish), ask about writing for us -- Mainframes to videogames, hardware and software, we cover it all Visit our web site for lots of extra content: http://news.computercollector.com Contact us at news(a)computercollector.com 620 readers and counting!

21 years, 8 months

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Interesting "Rare" APPLE PCI Board on Ebay

by RMeenaks＠OLF.COM

Don't know anything about this, but thought you guys might be interested. It has a Buy It Now of $15.... http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=80075&item=5734752777 &rd=1&ssPageName=WD1V#ebayphotohosting Cheers, Ram (c) 2004 OpenLink Financial Copyright in this message and any attachments remains with us. It is confidential and may be legally privileged. If this message is not intended for you it must not be read, copied or used by you or disclosed to anyone else. Please advise the sender immediately if you have received this message in error. Although this message and any attachments are believed to be free of any virus or other defect that might affect any computer system into which it is received and opened, it is the responsibility of the recipient to ensure that it is virus free and no responsibility is accepted by Open Link Financial, Inc. for any loss or damage in any way arising from its use.

21 years, 8 months

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missing pages from DF32 manual on bitsavers

by aek＠spies.com

I have another copy of the manual with the missing pages Will fix the one up there this afternoon

21 years, 8 months

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missing pages from DF32 manual on bitsavers

by ethan.dicks＠gmail.com

Does anyone have the last few pages of the DF32 (not DF32D) manual? I was specifically interested in the board used to display track selection, etc, for the diskless tests. IIRC, it's on like page 6-41, and the copy of the DF32 maint manual on bitsavers only goes up to 6-37. Thanks, -ethan

21 years, 8 months

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mpf 1 manual please

by steve.peddle＠sympatico.ca

having a hard time finding this manual....I waz wondering if i can get a copy from you if still around...thanks steve peddle >From cctech(a)classiccmp.org Wed Dec 11 09:28:49 2002 From: cctech(a)classiccmp.org (Rich Beaudry) Date: Wed Dec 11 09:28:49 2002 Subject: MPF-1 Manuals Message-ID: <F97DF7WCI5TrcDd4ism0000783a(a)hotmail.com> Hello all, I just changed jobs, and the new place has a *TOTAL* lockdown on web browsing, even for the engineers, so I have not been keeping track of the list. I was catching up tonight from home, and saw Adrian's note about me and the MPF-1. I indeed have one, with manuals, and would be happy to make copies for whoever needs them. Please email me off-list, and we can set it up. One small caveat: I have a metric crapload of things going on, so it may be a few *weeks* before I can get to it. If you can wait, I can make copies... :-) Rich B.

21 years, 8 months

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FFS: Syquest 44MB internal drive model SQ555

by uban＠ubanproductions.com

I have a Syquest 44MB internal drive, model SQ555, which came with an enclosure that I picked up. I don't know the status of the drive but it is free for the price of shipping to the first person to claim it... --tom

21 years, 8 months

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wanted: Votrax PSS manual

by GFisher＠tristonecapital.com

For what it's worth there is a manual for the Votrax Type N Talk at the URL below, I believe they used the same speech chip (SC-01). Crap, I had a Votrax PSS about 4 years ago and sold it for pennies on the dollar! http://members.aol.com/itsancientpics3/votraxmanual.htm There is also a neat piece of DOS software to read the screen through a PSS at: http://park.org/Guests/Trace/pavilion/dosshar1.htm Sorry, that's all I can come up with. Gary Fisher This e-mail and any attachments may contain confidential and privileged information. If you are not the intended recipient, please notify the sender immediately by return e-mail, delete this e-mail and destroy any copies. Any dissemination or use of this information by a person other than the intended recipient is unauthorized and may be illegal. Unless otherwise stated, opinions expressed in this e-mail are those of the author and are not endorsed by the author's employer. Original Message Follows: Message: 35 Date: Tue, 21 Dec 2004 19:53:07 -0500 From: "Jonathan Gevaryahu" <jgevaryahu(a)hotmail.com> Subject: wanted: Votrax PSS manual To: cctalk(a)classiccmp.org Message-ID: <BAY101-F30F5EDF67555D1019899D2C7A40(a)phx.gbl> Content-Type: text/plain; format=flowed I recently obtained a Votrax Personal Speech System which unfortunately for me, did not include the power supply or the manual. Thanks to Robert Stek's informative post (http://www.classiccmp.org/pipermail/cctech/2003-February/010608.html) on this list in Feb '03, I am in the process of constructing a power supply for it. (i.e. I eBayed a 28VAC transformer and am using an 18.5VDC laptop power supply instead of 20VDC which HOPEFULLY won't hurt anything, until I find a satisfactory 20VDC power supply, and am cannibalizing a DIN-5 connector from a dead keyboard) However, I still lack a copy of the PSS's manual, so I can't figure out how to set the various device modes, to control the AY-3-8910 audio generator chip, etc. If anyone here has the manual for the Votrax Personal Speech System and has some means to scan or digitize it (a digital camera will work) can they post or send me a copy of the images? It would be very much appreciated. Jonathan Gevaryahu

21 years, 8 months

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tractor-feed paper sizes?

by eric＠brouhaha.com

Does anyone happen to know anything about obscure sizes of tractor-feed paper? We've now got the console typewriter of the PDP-1 at the Computer History Museum working correctly. It is an IBM Model B electric typewriter modified by Soroban Engineering for use as an I/O device. Soroban added an encoder and a decoder mechanism, using switches, solenoids, bails, etc. There was a bent leaf switch contact that resulted in incorrect character codes on input, and two stuck solenoids that resulted in incorrect characters typed. Anyhow, the typewriter will accept individual sheets, but it also has tractors for continuous forms. But the distance between the sprockets is approximately 13 1/8", which is narrower than the sprocket spacing of standard line-printer paper. A Google search reveals plenty of places that sell 9 1/2" wide or 14 7/8" wide continuous forms, but are other sizes readily available? Thanks! Eric Smith volunteer, Computer History Museum PDP-1 Restoration Project http://pdp-1.org/

21 years, 8 months

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HP 7908/7912 head locking

by aek＠spies.com

I've put a scan of the 791x installation manual up at www.bitsavers.org/pdf/hp/disc/07912-90902_791x_Inst_Jun86.pdf

21 years, 8 months

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HP 7908/7912 head locking

by Arno_1983＠gmx.de

Hi everybody, the information technology "museum" at Erlangen University (for which I work part-time) will be aquiring two HP 1000 systems in the near future, an A600+ in a 16-slot cardcage with a "piano-seat" disk/tape unit (7912P) and an A700 in a big cabinet with rackmount storage (7908 and 7912). I'd really like to have them arrive undamaged. As noted in the archives, there should be a shipping lock on these drives (see http://www.classiccmp.org/pipermail/cctech/2003-April/013531.html). We've already received the documentation for the system, but obviously the now important parts (Disc Drive Installation Manuals 07908-90902 and 07912-90902) are missing. Some Google activation brought up several sellers of used drives along with a few classiccmp threads, but no online copy of the manual. Can somebody please tell me how to properly prepare the drives for transport? From what I read here, they're not very reliable anyway, but one doesn't need to make matters worse. They're in a building just across the yard, but as I always need to coordinate three parties to do something there, it would be best to know what to do *before* actually poking around in the cabinets. Your instructions (or redirections to web resources) will be sincerely appreciated. -- Arno Kletzander Stud. Hilfskraft Informatik Sammlung Erlangen www.iser.uni-erlangen.de +++ Sparen Sie mit GMX DSL +++ http://www.gmx.net/de/go/dsl AKTION für Wechsler: DSL-Tarife ab 3,99 EUR/Monat + Startguthaben

21 years, 8 months

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Abandonware site charges for downloads

by vcf＠siconic.com

What do you folks make of this site? http://free-game-downloads.mosw.com/ That have a bunch of software for download. Some of it is Abandonware. Or at least it's claimed to be Abandonware. How do we know it's Abandonware? They have nothing on their site (that I could find) that confirms that these are abandonware, and there are thousands of titles there. They want money if you want to download anything. I can understand them wanting to cover their costs, but this seems pretty sleazy to me. Opinions? -- 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 ]

21 years, 8 months

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wanted: Votrax PSS manual

by jgevaryahu＠hotmail.com

I recently obtained a Votrax Personal Speech System which unfortunately for me, did not include the power supply or the manual. Thanks to Robert Stek's informative post (http://www.classiccmp.org/pipermail/cctech/2003-February/010608.html) on this list in Feb '03, I am in the process of constructing a power supply for it. (i.e. I eBayed a 28VAC transformer and am using an 18.5VDC laptop power supply instead of 20VDC which HOPEFULLY won't hurt anything, until I find a satisfactory 20VDC power supply, and am cannibalizing a DIN-5 connector from a dead keyboard) However, I still lack a copy of the PSS's manual, so I can't figure out how to set the various device modes, to control the AY-3-8910 audio generator chip, etc. If anyone here has the manual for the Votrax Personal Speech System and has some means to scan or digitize it (a digital camera will work) can they post or send me a copy of the images? It would be very much appreciated. Jonathan Gevaryahu P.S. I'm sorry if this message gets onto the list multiple times, I initially sent it to cctech from my comcast account with a different return address, and I thought it had been 'moderated to death'. So I sent it to cctalk instead, with the same account... and my message still never showed up. (I guess classiccmp.org is rejecting all comcast mail as spam or something nasty like that) So now, I'm sending it through hotmail, and I HOPE it gets through...

21 years, 8 months

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id this HP-IB cable?

by pete＠dunnington.u-net.com

On Dec 21 2004, 16:38, Joe R. wrote: > Can anyone id this cable? > <http://www.classiccmp.org/hp/cable/Mvc-002f.jpg> It looks DEC-ish but it > has fewer pins (24) than the DEC HP-IB cables. 24 pins makes sense for HP-IB/GP-IB, and the "piggy-back" connector looks right, but the other end doesn't look like the DEC GP-IB cable for my IBV-11, either. Is there a part number on either of those white labels that are visible near the ends? -- Pete Peter Turnbull Network Manager University of York

21 years, 8 months

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Musings on 2003

by kcfoxie＠mac.com

Hello, I was looking for MaxxBoxxes when I came across your Musings. I was curious if you had ever found one? And if I may ask, where have you been looking? Thanks, Chris Browder (-AIM-) Vdubbed83 ) (-Homepage-) http://homepage.mac.com/kcfoxie/ ) -- "Total everything up and you may be surprised (but probably not) to find that Apple spent at least three-quarters of 2004 being officially late with one or more products... And since everything Apple does is, by definition, the height of fashion and the epitome of cool, obviously "late" is the new black." -J. Miller, www.appleturns.com

21 years, 8 months

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TI Silent 700 power supplies

by CPUMECH＠aol.com

Call Dataterm they still have original working TI 703/707 power supplies or AC adapters p/n2310442-0001. Probably get 0ne for $10 plus shipping.

21 years, 8 months

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Philips/Magnavox VideoWriter Hacking???

by netsurfer_x1＠fastmailbox.net

Hi all! I was just wondering if anyone on here knows what (if any) hacks have ever been done to a Philips/Magnavox VideoWriter? I was mainly wondering if anyone has ever been able to get any other operating system (namely CP/M) working on these boxes. David M. Vohs Digital Archaeologist & Computer Historian Computer Collection: "Triumph": Commodore 64, 1802, 1541, Indus GT, FDD-1, GeoRAM 512, MPS-801. "Leela": Original Apple Macintosh, Imagewriter II. "Delorean": TI-99/4A, TI Speech Synthesizer. "Spectrum": Tandy Color Computer III. "Monolith": Apple Macintosh Portable. "Boombox": Sharp PC-7000. "Butterfly": Tandy 200, PDD-2. "Shapeshifter": Epson QX-10, Comrex HDD, Titan graphics/MS-DOS board. "Scout": Otrona Attache. (prospective) "Pioneer": Apple LISA II (prospective) "Mercury": HP-85. (prospective) "Evolver": Commodore Amiga 2000 "TMA-1": Atari Portfolio, Memory Expander +

21 years, 8 months

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Liberator 220.

by williams.dan＠gmail.com

I now have 7 of these liberator 220's. I don't have the cables yet to test them, or even know if the cables I have coming will work. Looking inside the cases they have 2 full height drives in there. They are standard 50 pin scsi drives. The two drives connect to what has to be a scsi-->dssi board. This is making me think that could change these drives for something bigger. But if anyone knows more about these I would love to know. I was wondering if the two drives inside are mirrored or in an array. The arey in a rack all daisy-chained together, unless someone has messed about with it, I thought dssi was max 7 devices. They also have a programmable front panel, with no instructions and just three buttons. Does anyone know how this works. Also does anyone know how the speed of these compare to standad dssi drives. This is going to go great on the 4000/705a. It would be nice if I could swap a couple of the drives for 18gb. Apologies if you read them, I have asked the same questions on both vms and dec newsgroups. Thanks Dan

21 years, 8 months

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Old Unibus PDP-11 XXDP diagnostics

by pete＠dunnington.u-net.com

On Dec 21 2004, 22:39, Gooijen H wrote: > > Pete wrote: > > ... when my department gets its big scanner, probably in January > > (Sorry, Henk, it's not an Oce). > > I hate to go off-topic for a moment, but I can't resist here, > I am very loyal / pro-minded to my employer :~) <shameless plug> > Does your scanner do 55 pages Letter or A4 size (1-sided per minute, > or 27 ditto (2-sided) automatically at 600 DPI ? No, I don't know the actual figures, but the one we had on eval seemed, subjectively, about 2/3 or maybe 3/4 of that speed. It's an HP, but I can't remember the model number either. You have to understand that it was a huge battle getting any scanner at all in our department! > And besides, the software that moves the scanner carriage was entirely > written by me! For the mechanics under us: the carriage accelerates > to approx 1 m/s in 33 msec! > Don't ask what happened after I made a mistake in the path calculation > software and tried to run that code on the engineering prototype (way > back in 1994) ...! I was not the only one unhappy with the results!! When I worked in CompSci, we got a big fast Oce scanner/copier, about 1997, I think. One of those that collects the output internally, safely away from fingers, because the paper goes fast enough to cut fingers off if they're not out of the way. I remember the first print job I sent it, a large A4 manual printed from a PDF file. I walked the length of the corridor to the print room, saw no output, and was slightly surprised -- for about 3 seconds, when a *large* block of paper was neatly deposited on the output tray. > LOL, this (..) is typical "Pete humor". (Yeah, I must do something about those () keys as well). -- Pete Peter Turnbull Network Manager University of York

21 years, 8 months

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clueless eBay seller for today is:

by dwight.elvey＠amd.com

Hi From the looks of the back, it is one of the battery backed units as well. I suspect that the front panel lights come on but nothing works, like my unit did until I learned the resistor in the connector trick. Dwight >From: "Joe R." <rigdonj(a)cfl.rr.com> > > He certainly hasn't found your website, has he Al? At least he's not >claiming that it's "complete and fully functional" like the seller of that >recent F-series 1000 did. > > Joe > > > >At 08:59 AM 12/21/04 -0800, Al wrote: >> >>http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=1247&item=5150357271 >> >>"A shroud of mystery hangs over the history and specification of this >classic computer system." >> >>-- >> >>Good thing he wasn't trying to sell something was really WAS obscure. >> >> > >

21 years, 8 months

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Old Unibus PDP-11 XXDP diagnostics

by GOOI＠oce.nl

> Pete wrote: > ... when my department gets its big scanner, probably in January > (Sorry, Henk, it's not an Oce). I hate to go off-topic for a moment, but I can't resist here, I am very loyal / pro-minded to my employer :~) <shameless plug> Does your scanner do 55 pages Letter or A4 size (1-sided per minute, or 27 ditto (2-sided) automatically at 600 DPI ? And besides, the software that moves the scanner carriage was entirely written by me! For the mechanics under us: the carriage accelerates to approx 1 m/s in 33 msec! Don't ask what happened after I made a mistake in the path calculation software and tried to run that code on the engineering prototype (way back in 1994) ...! I was not the only one unhappy with the results!! > Sorry about the spelling and dropped characters in my last post, BTW. > Must fix this keyboard (right after I fix these fingers). LOL, this (..) is typical "Pete humor". - Henk.

21 years, 8 months

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id this HP-IB cable?

by rigdonj＠cfl.rr.com

Hi All, Can anyone id this cable? <http://www.classiccmp.org/hp/cable/Mvc-002f.jpg> It looks DEC-ish but it has fewer pins (24) than the DEC HP-IB cables. I keep finding these but I've never found them on the equipment that they're made for. Right now I have four of them, 2 are made from Belden cables, one for a HP cable and the other doesn't have a manufactures name. Thanks and Happy Holidays, Joe

21 years, 8 months

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Old Unibus PDP-11 XXDP diagnostics

by GOOI＠oce.nl

Ok, I checked. I am that fast back because I remembered exactly where to look :~) I have one before me on the desk. It has the following description: PRODUCT CODE: AC-8528C-MC PRODUCT NAME: CZDLDC0 DL11-W DIAG DATE CREATED: MARCH 1978 MAINTAINER : DIAGNOSTIC ENGINEERING AUTHOR : DAN CASALETTO Don't be fooled, it is printed on Letter format, 2-sided! Only the first 6 pages are one page per side, all the following pages are scaled: 2 pages per side, thus 4 pages (or images) per sheet. The first 6 pages describe the load and start procedure, the switch bits to get special functions, etc. just as described on my site. The scaled pages contain the assembly source (output) listing ... they are numbered from "seq 0012"up to "seq 0103", and I checked, the numbering is not octal but decimal! If there is interest I could start to scan these to 600 dpi PDF files, but I have a stack of approx 20-30 cm high, so that will be a lot MB's! I could start making a list of what's in the box. Xmas is coming :~) - Henk. -----Original Message----- From: cctalk-bounces(a)classiccmp.org To: info-pdp11(a)village.org; General Discussion: On-Topic and Off-Topic Posts Sent: 21-12-2004 17:27 Subject: Old Unibus PDP-11 XXDP diagnostics Does anyone have any info/documentation on the XXDP diagnostics for older PDP-11 systems and peripherals? I'm looking in particular for the 11/40 (11/35), RK05, DZ11, RL02, MM11 core memory, RX01, RL01 diagnostics. I have found some info on Henk's site, but would like to know if anyone has a comprehensive list and hints on how to run these, what the output means, how to answer the prompts, etc. I have created RL02 packs with XXDP 2.5 and XXDP 2.2 and I can boot and run stuff from these packs. It appears that the 11/40 diagnostics are on XXDP 2.2, but not on XXDP 2.5. I have an old 1976 DEC field rep troubleshooting guide that refers to various MAINDECs, which seem to have been the diagnostics prior to XXDP. Is there a list somewhere showing what the XXDP equivalents of the old MAINDECs are? Any help would be appreciated. I want to exercise my 11/40 and attached peripherals and see if any subtle gremlins are lurking anywhere within. Everything appears to be working perfectly with the exception of one of my three RK05 drives that I knew was problematic. Ashley

21 years, 8 months

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Mail Authentication

by marvin＠rain.org

Encrypted message is available.

21 years, 8 months

1
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OT: Html clue?

by ron.hudson＠sbcglobal.net

Ok, I have looked around in the documents for Angelfire, at other sites and I am still having problems getting this.. <a href="download/RockScissorPaper.dmg">RockScissorPaper</a> trys to download RockScissorsPaper.HTML when I click it (the html I actually get is angelfire's 404 page) phhht. What is the "right" way to make a file available on my web page?

21 years, 8 months

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Old Unibus PDP-11 XXDP diagnostics

by GOOI＠oce.nl

I could go and check ... AFAICR I also have a stack of listings that belong to XXDP programs. When a stop/halt occurs at an address, you read the listing of the XXDP diagnostic program to learn near the address where the stop occurred for what reason that stop occurred. I'll report back later! - Henk. -----Original Message----- From: cctalk-bounces(a)classiccmp.org To: info-pdp11(a)village.org; General Discussion: On-Topic and Off-Topic Posts Sent: 21-12-2004 17:27 Subject: Old Unibus PDP-11 XXDP diagnostics Does anyone have any info/documentation on the XXDP diagnostics for older PDP-11 systems and peripherals? I'm looking in particular for the 11/40 (11/35), RK05, DZ11, RL02, MM11 core memory, RX01, RL01 diagnostics. I have found some info on Henk's site, but would like to know if anyone has a comprehensive list and hints on how to run these, what the output means, how to answer the prompts, etc. I have created RL02 packs with XXDP 2.5 and XXDP 2.2 and I can boot and run stuff from these packs. It appears that the 11/40 diagnostics are on XXDP 2.2, but not on XXDP 2.5. I have an old 1976 DEC field rep troubleshooting guide that refers to various MAINDECs, which seem to have been the diagnostics prior to XXDP. Is there a list somewhere showing what the XXDP equivalents of the old MAINDECs are? Any help would be appreciated. I want to exercise my 11/40 and attached peripherals and see if any subtle gremlins are lurking anywhere within. Everything appears to be working perfectly with the exception of one of my three RK05 drives that I knew was problematic. Ashley

21 years, 8 months

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Don Lancaster's postings on alt.marketing.online.ebay

by aek＠spies.com

quite an interesting newsgroup, actually. stumbled onto it yesterday. http://www.tinaja.com/aucres01.asp may be of interest.

21 years, 8 months

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Old Unibus PDP-11 XXDP diagnostics

by pete＠dunnington.u-net.com

On Dec 21 2004, 9:14, Guy Sotomayor wrote: > On Tue, 2004-12-21 at 08:27, Ashley Carder wrote: > > Does anyone have any info/documentation on the XXDP diagnostics for > > older PDP-11 systems and peripherals? I'm looking in particular for > > the 11/40 (11/35), RK05, DZ11, RL02, MM11 core memory, RX01, RL01 > > diagnostics. I have found some info on Henk's site, but would like to > > know if anyone has a comprehensive list and hints on how to run these, > > what the output means, how to answer the prompts, etc. It would be a big list :-) I had a whole box of microfiche of them, once. Later diagnostics use a common set of "switches" to tell them whether to halt on error, loop on erro, produce lots of reports, etc; alsmost all diagnostics have specific settings to determine what they do in detail. If they halt on error, you need the isting to determine exactly what caused the halt -- they don't, in general, print much informative info. > OK, the "magic decoder ring" for converting the MAINDECs to XXDP names > is quite simple. The MAINDEC # is of the form: > MAINDEC-11-Dxxxx-* > > To convert this to the XXDP diagnostic name keep only the xxxx part of > the MAINDEC #. To run it, do: > R xxxx?? > > The first letter in the diagnostic name tells you what processor it's > for. If I remember correctly C=11/40, Z=any B is 11/40; C is 11/45 > There's a document that tells all about it (but I can't remember where I > found it at the moment). That would probably be mine, at http://www.dunnington.u-net.com/public/PDP-11/XXDP.pdf XXDP.ps is the same content, just a different format. The bits from page 6 to 12 are from V2.4, but the rest is mostly version-independant. > The pack images that you're talking about don't have the correct memory > diagnostic, but I've found that ZMSDD0 (wow! from memory...can you tell > I've used it a bunch?) works OK enough to be able to find bad memory and > you'll know when you hit bad memory. I've also found that having a > hardcopy terminal is preferable to a CRT when you're getting failures. > > If a diagnostic loads and then gives you a prompt like "DB>", START is a > good choice as a response. -- Pete Peter Turnbull Network Manager University of York

21 years, 8 months

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Apollo Guidance Computer prototype replica

by RCini＠congressfinancial.com

Has anyone cached this yet? The bit rates are so low that it must be hosted on his machine at home. Heaven help him if this story gets posted to Slashdot :-) -----Original Message----- From: cctalk-bounces(a)classiccmp.org [mailto:cctalk-bounces@classiccmp.org]On Behalf Of Vintage Computer Festival Sent: Monday, December 20, 2004 1:41 PM To: Classic Computers Mailing List Subject: Apollo Guidance Computer prototype replica This is going to blow your mind. This guy built a replica of the Apollo Guidance Computer prototype circa 1964 using 1960s era components. http://starfish.osfn.org/AGCreplica/ Do I sense here a Best of Show award at the next VCF? :) -- 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 ]

21 years, 8 months

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Who Made/Makes the World Smallest Harddrive

by mmcfadden＠cmh.edu

Not trying to start any flames but I didn't think they had any 30/30 rifles in UK. I thought that's why the Bobbies carried batons and a whistle. Sellam says > >Maybe it was both: the 30/30 evoked the name of the rifle, which also >happened to be the name of a nearby locale, and the naming was obvious >thenceforth. Mike

21 years, 8 months

3
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Problems reading older disk on newer drive

by vcf＠siconic.com

I think we've discussed this before. Sorry if we're re-treading old ground. I'm trying to read a disk an old double-density PC formatted disk on a high-density drive. I can read the directory and certain small files just fine, but any files that are larger than a few sectors (or perhaps that span a track) return "Sector Not Found" errors. What is the deal with that? This is under DOS 6.22. Is there a way to get DOS to recognize that this is a double-density disk and to perform whatever internal magic is necessary to read the disk properly? Or is this an issue of hardware? -- 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 ]

21 years, 8 months

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Our hobby in The New York Times -- sort of

by news＠computercollector.com

Hi everyone, This is VERY cool: Jeri Ellsworth and her C64 30-in-1 joystick are featured in The New York Times. As I write this email (2:54AM, Monday), it's on the actual nytimes.com homepage, with a color photo of her. The article itself is at (http://www.nytimes.com/2004/12/20/technology/20joystick.html?8dpc). There is a product review of the 30-in-1, head-to-head against the new Atari Flashback, at my own site (http://news.computercollector.com) -- click the 'reviews' link. Happy vintage gaming! - Evan K. ===== Tell your friends about the Computer Collector Newsletter! -- It's free and we'll never send spam or share your email address -- Publishing every Monday(-ish), ask about writing for us -- Mainframes to videogames, hardware and software, we cover it all Visit our web site for lots of extra content: http://news.computercollector.com Contact us at news(a)computercollector.com 600 readers and counting!

21 years, 8 months

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Our hobby in The New York Times -- sort of

by RCini＠congressfinancial.com

The intellectual property issues would be key for me, too and could have been dealt with in a few sentences. As far as the crappy-versus-good title licenses, I would offer up that the final choice of games comes down to (1) which IP owner you could locate and (2) successfully negotiate with. There's the firm...Tulip I think...that from what I've read seems to be ready to come down hard on anyone using abandoned Commodore properties for commercial gain. It's been a long road of failed owners, but I believe Tulip owns the Commodore trademarks and IP. I can't say for sure if they own the designs for the 6510 but I would assume that they bought a "package" of IP from Gateway, who bought it from Ascom AG, who bought it from the Commodore bankruptcy estate for $5mm (IIRC). There might be another name in there after Ascom, but I can't be sure. I think that Tulip uses the Commodore name for things other than computers but owns all of the goodies that's of particular interest to this group. Rich -----Original Message----- From: cctalk-bounces(a)classiccmp.org [mailto:cctalk-bounces@classiccmp.org]On Behalf Of John Foust Sent: Monday, December 20, 2004 3:46 PM To: cctalk(a)classiccmp.org Subject: Re: Our hobby in The New York Times -- sort of At 02:41 PM 12/20/2004, Vintage Computer Festival wrote: >I can think of at least one more important issue to be concerned with :) Judging by Slashdot's coverage of Ellsworth and the geek response, at least 90% of this mailing list's bandwidth needs to be consumed debating her "hotness." Sated geek that I am, I'd love to read an in-depth article on the intellection property issues: Did they get permission from the CBM's heirs? Who got the 6510's IP rights? What about the software, was that easy to license? Why do so many of these cheap emulators license lousy titles, as opposed to the extinct top-sellers? - John

21 years, 8 months

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Oldest computer on the internet?

by wacarder＠usit.net

Does anyone know what the oldest documented functional computer is that is connected to the internet? Ashley

21 years, 8 months

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Differential Analysers and Scientific American

by allain＠panix.com

> I was wondering whether anyone here with '70s > issues of SciAm might be able to make a copy, Likely I have the issue stored. I'd have to leave it to you right now to find out which issue it would be. With that info I could make you a copy. John A. hope this can help you Bill the cat: "ACK TBFfffttt!"

21 years, 8 months

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my old FIDO CP/M-80 machine running

by tomj＠wps.com

Deciphered the missing keyboard cable and the far, far too complicated keyboard interface (I practically rewired a Cromemco PRI board to be an interface for this lovely Microswitch parallel keyboard -- very hardware-head), soaked & washed the mouse poop off the floppy cable, repaired the section of conductor #50 nibbled by said rodentia, picked a system floppy at random (DSSD), typed "b" at the prompt... READ ERROR. Pulled a SSSD system disk, booted fine! Some fiddling, I can't read any sectors of side 2. That I will figure out. It does figure out sidedness. Found I have bunches of blank NOS DSDD floppies, not one SSSD blank! So no formatting etc. So I ran all the progs on the system disk (wordstar, sid, pmate, stat, etc) OK. Since I've got a bunch of SSSD system disks, I stuck another in the B drive (a sssd drive, since mice ruined the orig. drive), and ran MBASIC 5.03 off it. Man, the B drive spindle bearing is trashed; it's conversation-level loud. The G and right-shift keys on the keyboard don't work, and the RETURN key sends a garbage character then CR (but Control-M works so I can do stuff). I need to fix the "G" key, figure out the serial port stuff, then I can export the SSSD diskette contents. Once I fix the DS thing I'll do the other non 3740 format diskettes. I don't know yet what order I'll do things in though I will probably get one of the serial ports working to make sure. Luckily I have ZAPLOAD (bin to hex) and telink (telecomm) progs on the system disk.

21 years, 8 months

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Apollo Guidance Computer prototype replica

by jfoust＠threedee.com

At 12:50 PM 12/20/2004, you wrote: >Has anyone cached this yet? The bit rates are so low that it must be hosted >on his machine at home. >Heaven help him if this story gets posted to Slashdot :-) Either there's a CCC Effect, or maybe whereever Sellam learned about it, others learned too. I'm getting about 1-4K/sec, but the first PDF is 8 meg. I can mirror when it's done. If you look up one directory, you'll see he's mirroring Carl Friend's site. - John

21 years, 8 months

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Our hobby in The New York Times -- sort of

by eric＠brouhaha.com

> Tulip owns the Commodore trademarks and IP. I can't say for sure if they > own the designs for the 6510 It doesn't really matter, as no one building a product today would use any portion of the original 6510 design that is subject to intellectual property protection. The DTV 64-in-a-joystick, for instance, uses a new 6510-compatible HDL implementation. AFAIK, the only part of the original 6510 design that would be subject to intellectual property protection now would be the actual mask designs, which might (or might not) be copyrighted. No one in their right mind would try to make new 3 micron NMOS processors today, and the mask designs are not relevant to new redesigns.

21 years, 8 months

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Who Made/Makes the World Smallest Harddrive( Winchester)

by mmcfadden＠cmh.edu

Actually in 1975 or 1976 one of my fellow graduate students, moving to Beaverton Oregon to work for Tektronix, was trying to move some early disk drives and was asked by the movers what they were. Home furnishings were readily moveable but not office stuff. So he put them in washer and dryer boxes and the movers were happy to move them. They had been used as end tables in his living room up until them. He also built the first Altair I ever saw. Andy said > >My experience of early hard disks was with the ICT EDS-4 which stored 4M 6-bit characters (ie about 3 MB) - the >(exchangeable) disk pack was close to the size of a complete PC ... the drives were referred to as "washing machines" >because of their size and appearance. (and the controller was about the same size also). The IBM equivalent was, I >think, the 1311 ... the 2311 being equivalent to the ICT EDS-8 (which had twice as many tracks as the eds4 but was >otherwise identical) Mike

21 years, 8 months

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Resurgence of the C64/Tulip/Jeri

by RCini＠congressfinancial.com

Here are a few Web links that talks about Tulip and the C64. Some are bit old, but worth a read: http://www.pcworld.com/news/article/0,aid,111556,00.asp Article from 2003 that gives an overall look at the relationship. http://www.tulip.com/news/article.asp?nid=109 This one raises as many questions as it answers. It only speaks to enforcement for the unauthorized use of the Commodore name. http://www.tulip.com/aboutus/corp_article.asp?nid=145 This is an interesting link, too. Although it's in Dutch, the product looks remarkably similar to the one Jeri is holding in her hand. Interestingly, in a note on Ruud Baltassen's site indicates that Tulip doesn't mind people using the Commodore name in a non-commercial setting, I guess acknowledging that in the time between when it purchased "the name and other assets in 1997" and 2003 when they talk about developing game products for the PC (like the Atari Anthology program, I'm guessing -- old games running on a new machine using an emulator), a lot has happened. The problem is that no one ever says what "other assets" is. Rich

21 years, 8 months

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olivetti underwood programmer 101 Kansas City

by mmcfadden＠cmh.edu

I just found and captured this programmable calculator. It still has a roll of paper in the feed. I would like it to go to a good home. It is heavy and big. I have not tried to power it up. Google search turned up the following information. Looks just like http://www.oldcalculatormuseum.com/c-programma101.html Any offers? Mike McFadden

21 years, 8 months

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Apollo Guidance Computer prototype replica

by RCini＠congressfinancial.com

Ahhh...I thought I recognized the domain name from somewhere. -----Original Message----- From: cctalk-bounces(a)classiccmp.org [mailto:cctalk-bounces@classiccmp.org]On Behalf Of John Foust Sent: Monday, December 20, 2004 2:22 PM To: cctalk(a)classiccmp.org Subject: RE: Apollo Guidance Computer prototype replica At 12:50 PM 12/20/2004, you wrote: >Has anyone cached this yet? The bit rates are so low that it must be hosted >on his machine at home. >Heaven help him if this story gets posted to Slashdot :-) Either there's a CCC Effect, or maybe whereever Sellam learned about it, others learned too. I'm getting about 1-4K/sec, but the first PDF is 8 meg. I can mirror when it's done. If you look up one directory, you'll see he's mirroring Carl Friend's site. - John

21 years, 8 months

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Domain Name Registration

by healyzh＠aracnet.com

Who do people like to use for registering domain names? DNS hosting would be a plus. Zane

21 years, 8 months

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Interesting stuff on E-bay

by rigdonj＠cfl.rr.com

HP 9915 computer <http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&rd=1&item=3860828545&ssPageNa me=STRK:MEWA:IT> HP HEWLETT PACKARD 200 SERIES 9920A SERVICE MANUAL <http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&rd=1&item=5149350604&ssPageNa me=STRK:MEWA:IT> 3 Hewlett Packard HP Computer Sales Brochures 1975 <http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&rd=1&item=5147531234&ssPageNa me=STRK:MEWA:IT>

21 years, 8 months

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question re HP 264x terminals

by jack.rubin＠ameritech.net

Which HP 264x terminals used 8008 cpus? I know that the 2640 and 2644 did - but did the 2648 or any others in the series also use it? What is the HP p/n for the 8008 in this application? Jack

21 years, 8 months

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FET Cross-reference - a bit off-topic

by nbreeden2＠comcast.net

I'm in the middle of some repair work on an older Heathkit O-Scope model IO-102, the vertical board uses an N-Channel FET (Q1 - EL131 - Heathkit part number 417-241) which has become very thermal. I picked up a replacement >from a local electronics distributor however the crossed NTE part simply doesn't work in the circuit. (NTE cross shows an NTE133 as the cross for the EL131). I've tried a couple NTE133s and an MPF105 as well, all work the same in the circuit but don't work correctly. Does anyone know of an exact EL131 replacement, know if the ECG312 really is a good replacement or even better know where I can get a Heathkit replacement part. Digikey, Mouser etc. all don't recognize the EL131 part number. Thanks -Neil

21 years, 8 months

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Macintosh collector groups?

by sml49＠comcast.net

Michael.. You might try posting them in the both the "free" area and "computer" area on Craigslist (www.craigslist.org); that might work. The IIsi has pretty much no value - ie: I doubt anyone would pay anything for one beyond the cost of shipping unless it has one or another of the more interesting PDS cards or adapters (does it?). I have quite a few si's that I've picked up at the local recycling depot. The 7200 is a more useful machine which is still upgradable. What comes with them by way of peripherals/ keyboards/ old sofware/ whatnot? I've been keeping a double handful of older Macs around here and the software to run 'em just in case some day down the line when I'm old and gray I suddenly have the urge to run PageMaker v. 2, or even Excel 1.04 (all 170K of it)...or the original MacPaint. Seth Lewin > > Message: 3 > Date: Sat, 18 Dec 2004 13:18:55 -0500 > From: Michael <vaxlion(a)postal.lionsden.com> > Subject: Macintosh collector groups? > To: cctalk(a)classiccmp.org > Message-ID: <41C4748F.6050100(a)postal.lionsden.com> > Content-Type: text/plain; charset=ISO-8859-1; format=flowed > > Howdy all, > > I have two Macs, a Mac IIsi and 7200, I would like to get rid of. Does > anyone have any recommendation for a Mac collectors group that might > have some individuals interested in these machines? Listings for these > machines on both Ebay and Vintage Marketplace have yeilded no takers. > > Thanks, > > -- Michael

21 years, 8 months

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cool HP-IB find

by rigdonj＠cfl.rr.com

I went to one of my favorite scrounging spots today and found an interesting disk drive with a HP-IB inteface. The drive was made by IEM and it has two 105Mb removable cartridge drives in it. It looks like it takes Syquest disk cartridges. Does anyone have a couple of spare Syquest 105 mb cartridges to spare so I can try it out? Joe

21 years, 8 months

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Stupid TI power supply

by dwight.elvey＠amd.com

Hi Sure sounds like a thermal limit switch. It could also be a Poly-Fuse. As for voltage of the transformer, if it is bad, one can still determine the ratio by cutting the wires off with a single cut per turn and then count the wires for the primary and secondary. One does have to watch out if there are taps, other than center tap. Dwight >From: "Vintage Computer Festival" <vcf(a)siconic.com> > > >So after beating the shit out of this stupid TI power supply (none of your >suggestions worked, thanks) I come to find that it does have an internal >fuse and that it is complete intact. Wonderful. This thing is shot >beyond repair at this point. It wasn't intended to ever be opened >apparently. > >Anyway, hopefully I can figure out what this pile of garbage was supposed >to be putting out. Of course, there are no markings on the housing of the >transformer. > >There is an IC in here. It's inline with the hot side of the input >voltage. The markings are thusly: > >UMI EI >X25 150(degree symbol)C >2.5A 250V~ > >A varistor? > >Anyway, this is a heap of junk now. > >-- > >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 ] > >

21 years, 8 months

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OT: Re: Domain Name Registration

by pete＠dunnington.u-net.com

On Dec 19 2004, 15:07, Glen Goodwin wrote: > Okay, so can someone tell me why -- suddenly -- a whois on my > domain name -- acme-sales.net -- does not show any of my contact > information? It did before, but something has changed. Er, it does for me: $ whois -h whois.opensrs.net acme-sales.net Registrant: ACME Enterprises of Orlando 6192 Edgewater Drive Orlando, FL 32810 US Domain name: ACME-SALES.NET Administrative Contact: Goodwin, Glen (email addr here) (4 lines postal address here) (phone number here) Technical Contact: (same 6 lines here) Registration Service Provider: Infinitum Technologies, domains(a)servercove.com 407-481-2434 407-481-2379 (fax) http://www.servercove.com This company may be contacted for domain login/passwords, DNS/Nameserver changes, and general domain support questions. Registrar of Record: TUCOWS, INC. Record last updated on 26-Aug-2004. Record expires on 22-Sep-2005. Record created on 22-Sep-2003. Domain servers in listed order: NS2.ZIGIO.COM 66.193.174.19 NS1.ZIGIO.COM 66.193.174.18 Domain status: ACTIVE $ -- Pete Peter Turnbull Network Manager University of York

21 years, 8 months

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Questions about the PDP 11/24

by pete＠dunnington.u-net.com

On Dec 19 2004, 12:32, Pierre Gebhardt wrote: > does anybody know, how much memory the 11/24 can take ? > I heard something about 1 MB, others say 4 MB somewhere on the web. Yes, I'm a bit confused... > Currently, it's configured with 1 MB. A basic 11/24 processor uses 22-bit addressing but a Unibus uses 18-bit addressing and therefore can address up to 256KB; the top four bits of address are therefore dropped by the MMU in a basic 11/24. If it's fitted with a Unibus Map (KT24, M7134, which also replaces the M9312 bootstrap card) then an 11/24 can use 22-bit addressing, on an extended Unibus, giving it a 4MB address space. It does this by feeding the output of the MMU through 31 mapping registers which provide relocation, so at any given moment you can actually only address 31 pages, each of 4KW (8KB), plus the I/O page; you need to re-program the mapping registers or the MMU to access the whole 22-bit range. I don't know where the 1MB limit comes from, that would be a 20-bit address range. > Furthermore, does a DELUA - Card properly work in it ? > There's only the card, the bulkhead assembly is missing, I would have to build it by myself... Yes, that should work. -- Pete Peter Turnbull Network Manager University of York

21 years, 8 months

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Questions about the PDP 11/24

by cheri-post＠web.de

Hello all, does anybody know, how much memory the 11/24 can take ? I heard something about 1 MB, others say 4 MB somewhere on the web. Yes, I'm a bit confused... Currently, it's configured with 1 MB. Furthermore, does a DELUA - Card properly work in it ? There's only the card, the bulkhead assembly is missing, I would have to build it by myself... Pierre __________________________________________________________ Mit WEB.DE FreePhone mit hoechster Qualitaet ab 0 Ct./Min. weltweit telefonieren! http://freephone.web.de/?mc=021201

21 years, 8 months

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Macintosh collector groups?

by vaxlion＠postal.lionsden.com

Howdy all, I have two Macs, a Mac IIsi and 7200, I would like to get rid of. Does anyone have any recommendation for a Mac collectors group that might have some individuals interested in these machines? Listings for these machines on both Ebay and Vintage Marketplace have yeilded no takers. Thanks, -- Michael

21 years, 8 months

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Indigo Keyboard

by williams.dan＠gmail.com

Didn't somebody say they where after an indigo keybaord a while back. There's one on ebay. http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&category=1486&item=57375390… Dan

21 years, 8 months

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Interesting stuff on E-bay

by rigdonj＠cfl.rr.com

1972 Univac 1100 manual Analog computer Programming Patch Panel Motorola MC68HC11 Evaluation Board Tektronix manuals in German, French, Japanese and English HP 9000 800/900 memory DEC OS/78 manual InfaRed Heat Gun See <http://search.ebay.com/_W0QQgotopageZ1QQsassZrigdonj>

21 years, 8 months

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Got a HP 2648. Now what?

by jdbryan＠acm.org

Bob, On Thu Dec 9, 2004, you wrote: > Its kinda odd how these terminals 'wake-up' with the text input > directed to the graphical display rather than the alpha display layer. That shouldn't happen unless the Keyboard Interface PCA is strapped for "compatibility mode." Open the unit, pull the Keyboard PCA, and check the DIP switches at the top of the card. Switches P and Q should be set to 0 (closed) for normal operation. With both closed, the terminal should power up in alpha text mode. Then it may be switched to graphics text via an escape sequence or by the keyboard TEXT key, as desired. (I have an HP 2647A. P and/or Q are set to emulate a Textronix graphics terminal.) -- Dave

21 years, 8 months

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HP25 / HP25C user's poll - Request for Programs

by ron.hudson＠sbcglobal.net

I just recently got an HP25. I like it this much (1E99++). I am putting together an applications pack of sorts that I will be able to make available as a PDF. I have 4 programs so far, Do any of you have/use the HP25 calculator? Do you have an HP25 programs you'd like to see in print? Send programs off list: ron.hudson at sbcglobal dot net All programs will be added. I have the HP25 applications book, let's not duplicate anything there.

21 years, 8 months

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Panasonic 805 Calculator

by cb＠mythtech.net

>That is almost certainly vacuum fluorescent. There are a lot of such >displays that use the same kind of seven-segment number formation you >commonly see with LEDs. Yes, I did more digging and found a web site specializing in vintage calculators, and it had a full discussion on the different types of displays... and yes, it does appear that I have Vacuum Fluorescent Display Tubes. This was reaffirmed with a closer inspection (with the aid of a flashlight) and each of the segments appears to be an individual tube (you can see the curves of the front as well as the typical peaked top). I've yet to open it to see if they are socketed or soldered... I figured I'd leave that until I new more about the technology and if the tubes are repairable, or if I can get the correct replacement part. -chris <http://www.mythtech.net>

21 years, 8 months

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Who Made/Makes the World Smallest Harddrive

by Innfogra＠aol.com

err...Toshiba.....

21 years, 8 months

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Who Made/Makes the World Smallest Harddrive

by Innfogra＠aol.com

http://www.toshiba.co.jp/about/press/2004_01/pr0801.htm Looks like Hitachi. Paxton Astoria, OR

21 years, 8 months

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LF: VT-180 parts

by dave04a＠dunfield.com

Hi again Guys, Had a VT-180 show up on my doorstep last week, and knowing another local collector who had one in "unknown condition", I decided to spend some time working on the two machines. Good news is that I have both of them working and booting up. But there are assorted bits and pieces missing, if anyone happens to have any of these VT-180 parts kicking around, please let me know: - One machine is missing the drive cable (the data cable from the VT-180 to the RX-180 disk unit) - One machine is missing the metal back cover/shield for the card cage - Both machines are missing the plastic shroud which covers the above mentioned cover/shield and connectors. - Both machines have "VT-100" nameplates - would like to find the VT-180 nameplates. - One machine is missing the ESC and '3' keys from the keyboard - this is a standard VT-100 keyboard, so keys from a VT-100 would also be a perfect match. Regards, Dave -- dave04a (at) Dave Dunfield dunfield (dot) Firmware development services & tools: www.dunfield.com com Vintage computing equipment collector. http://www.parse.com/~ddunfield/museum/index.html

21 years, 8 months

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Who Made/Makes the World Smallest Harddrive

by danjr＠voyager.net

> Date: Sat, 18 Dec 2004 11:11:26 -0600 > From: "Keys" <jrkeys(a)concentric.net> > Subject: Who Made/Makes the World Smallest Harddrive > To: "cctalk@classiccmp" <cctalk(a)classiccmp.org> > > IS it IBM? I need one for a museum display we are putting together. Thanks > Toshiba has one less than an inch across that holds 2.5-GB. They also had another one that was 1.8-inches and held 40-GB. http://news.bbc.co.uk/2/hi/technology/3381997.stm

21 years, 8 months

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Oldest computer on the internet?

by pete＠dunnington.u-net.com

On Dec 17 2004, 13:43, Ashley Carder wrote: > > Does anyone know what the oldest documented functional computer is that is > > connected to the internet? > ..... and is accessible by others via telnet, etc? I'd suppose David Gesswein's PDP-8 would be a candidate. I have a PDP-11/83 called titus running BSD2.11 which is internet-accessible, and my PDP-8/E has a serial line on a terminal server which is also internet-accessible, but neither is powered up 24/7. -- Pete Peter Turnbull Network Manager University of York

21 years, 8 months

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windows 2000

by williams.dan＠gmail.com

I know this is a bad subject, but I was reading an article about windows nt and the influence dec had on it. In the article it said that compaq kept development of windows 2000 up to 1999 on Alphas. Has anyone here seen it running on an Alpha and do you know if many people developed software to run on it. I knew they had NT on a lot of architectures but 2000 is a new one. Thanks Dan

21 years, 8 months

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SWTPC 6800 system in Italy

by swtpc6800＠comcast.net

I got this email today. Does anyone in Italy or Europe want a SWTPC 6800 system? Michael Holley www.swtpc.com/mholley ----- Original Message ----- From: "Paolo Meyer" <paolo(a)igc.org> Sent: Friday, December 17, 2004 8:49 AM Subject: request of info about SWTPC > Dear friend, > I was one of the first italian SWTPC users. Now I need more room in my > apartment so I need to give away some original BOXES and Boards. > > Do you know if exist in Europe or at least in Italy someone who can > be interested in this kind of olds stuff? > > Many thanks for your help. > > Paolo Meyer

21 years, 8 months

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MDS 225 Update

by melamy＠earthlink.net

I second the spare parts threat... no need. As for the cable pinout, I may have it with me (I just flew into Seattle from Virginia for the holidays). If I don't then I can email the connection scheme when I get back after the 2nd of January. I detailed not only the external cable, but the internal cable to make the internal drive a double density. I can send iPDS disks after I get back on the 2nd also. I'm with Dave, no need to replace the internal drive. Leave all the hardware as-is for now. The double density is the controller - not the drive. best regards, Steve Thatcher

21 years, 8 months

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vaxbrick 4000-50?

by vax9000＠gmail.com

I saw an ebay auction about a vaxbrick 4000-50. What is a vaxbrick 4000-50? I googled and didn't find much information. I'd guess that it uses NVAX cpu. But, what is the the clock frequency, and how big is the cache? What memory options does it support? vax, 9000

21 years, 8 months

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Oldest computer on the internet?

by wacarder＠usit.net

> Does anyone know what the oldest documented functional computer is that is > connected to the internet? ..... and is accessible by others via telnet, etc? Ashley

21 years, 8 months

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Differential Analysers and Scientific American

by ljw-cctech＠ljw.me.uk

>From the most recent 'Computer Collector' newsletter (http://news.computercollector.com): > Early Nov., 2004: At the recent VCF 7.0 event, Tim Robinson displayed > Meccano versions of Charles Babbage's Difference Engine and Vannevar > Bush's Differential Analyzer (http://www.meccano.us). It's nice to see Evan has mentioned this lovely Differential Analyser, and I am sorry I missed seeing it (thanks especially to Erik Klein for his nice photos of it, http://www.vintage-computer.com/vcf7.shtml, which first alerted me to its having been there). Many years ago (1980) I made myself a simple two-integrator Differential Analyser, which worked on exactly the same principle. I was inspired by the Meccano machine which was on display at the Museum of Transport and Technology in Auckland - this was one of a number of similar machines made in the '30s - and found a construction article in the Amateur Scientist column of Scientific American. I was wondering whether anyone here with '70s issues of SciAm might be able to make a copy, or at least give a definite date for it. It would have been in the early-to-mid '70s, certainly before '78. Thanks, and if anyone still hasn't seen Tim's machine, go to www.meccano.us and prepare to be amazed. (Sellam, give up on that TI thingy and go buy a Meccano set) -- Lawrence Wilkinson lawrence(a)ljw.me.uk Ph +44(0)1869-811059 http://www.ljw.me.uk

21 years, 8 months

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Vintage Edison Recorder...

by gstreet＠indy.net

> >Message: 9 >Date: Thu, 16 Dec 2004 20:40:23 +0000 >From: cvendel(a)att.net >Subject: Vintage Edison Recorder... >To: cctech(a)classiccmp.org > > >This is OT, however, > > If anyone is into historical items, this is something you should have a gander at: > > >http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=38029&item=229457049 0&rd=1 > > >True piece of early Edison history there! > > >Curt > Wow! OT or not, this is great! Thank you, Robert Greenstreet ---------------------------------------------------------------------------- --

21 years, 8 months

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MDS 225 Update

by river＠zip.com.au

Hi, Dear people, I do apologise if my attitude came across that "I'm gonna rip this apart for spares if I can't fix it", or if I came across aggressive. It was not my intent to antagonise, nor was it my desire to induce sympathy. Unfortunately the written word often lacks the character and nuances of speech. So, let me rephrase.... I purchased an old Intel MDS Series-4, specificaly for spare parts for my operating MDS Series4. The advertised unit has a memory error, but the rest of it checks out fine. My preference is to try and fix the broken unit. However, should my main unit have a problem I can always use the busted one to be a donor. If anyone knows exactly what chip 0000:8001 refers to (when doing a RAM test), then I will replace the offending component and have this unit fully operational. Which will make me a happy chappy. When I went to collect the unit the seller also said I could have the 225 unit. I spent a lot of time cleaning dirt and mud out of the 225 and then searched the internet for information. My intent was, and still is, to get this old beast running as good as they day it was made. If it wasn't, then I would of not bothered to take the unit or search for info on it, or come to this forum for advice. My comment, regarding "using it for spares" merely means it will be put away, somewhere safe and sound with all my other old stuff - some of which I have had to use for donor chips to get some SBC and other boards operational. It would indeed be a sad, sad day that I would need to pull it apart for bits. Once again, I apologise if my comments caused you angst. Now, back to the 225 issue. Yes, the disk drive array is a blue-box, twin-floppy unit that sits atop the main unit. The main unit has the two-board set that is required to run this double-density drive array. I have contacted the seller to ensure there isn't a cable left behind. Hopefully he has it still and that will be great. If not, I am more than happy to wait for pin-outs and, once supplied, I will make the cable. The other blue-box is the expansion chasis that sits under the main unit to give it a few more slots. I haven't powered up or even cleaned the disk-drive or expansion unit yet. They'll be done during the week. In the interim, I'm reading through the pdf files that you have kindly pointed me to. As per your advice, I won't be pulling apart the unit or do anything untoward until I get more information regarding boot disks and cable pinouts. The iPDS was a freebie given to me when I purchased my initial MDS Series4 some years ago. I have found very little information on this unit and therefore it has been set aside and I thought, "why not ask about the iPDS while I'm here" and it's good to see that there are some people out there that can help me get this unit operational. Other than that, I have no idea about this box - though I'd dearly love to get it going. I do have an old 486 DOS machine with 3 and 5 inch diskette drives, so I can get the iPDS disks done on that machine. My aim, with all this old stuff is to fix it as my main task. I don't collect things (like chip collectors) for looks. I like and want (almost have an inbuilt urge) to make it work and I love to have them all operational. I have fixed and have operational my old SC/MP, 6800 Micro Module, Central Data 2650, AIM65, STD bus and various Intel SBC systems - however, the old TI99/189 system (and a few others) have eluded me for quite some time, but I won't give up on them. Furthermore, I have an inventory of old processors, memory and peripheral chips and, using the Series4 with ICE85B, I build 8085 systems. I am hoping the 225 gets operational so I can do some stuff with the 8080 chip - like do some old S100 work and repairs on an SBC80/24. I'd love to build an 8080 system also. So please, don't think of me as a destroyer of old systems. I'm a preserver, who should of used a better phrase than "used for spare parts". :) I do hope you accept my apology, and I am extremely grateful for your assistance and advice. seeyuzz river

21 years, 8 months

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MDS 225 Update

by river＠zip.com.au

Hi, Thanks for the reply. I went and loaded all those docos regarding the Series 2XX. Great stuff. I cleaned up the connectors to the IO board and now the floppy drive engages upon reset. I ran the diags and all system work and even the floppy drive passed its tests with a scratch disk. However, I get a disk error when I boot the ISIS-II system disk. I tried a few other disks and the ones that are double-density all give a "disk error", yet the single-density ones just say "not bootable". So, I guess I need to find a single density 8-inch ISIS-II boot disk. I can't use the one from my Series-4 'cos it uses 5-1/4 disks. THe unit also came with a dual disk drive array - yet another amazingly heavy blue box, and an expansion chasis. It appears that there are no cables to attach the disk array. The 225 has the two disk controller cards in the chasis and the cables are routed to the J8/J9 connectors, but I beleive there is a cable that I require to attach from these connectors to the disk array. I'd love to get the 225 fully operational 'cos it came with the ICE-80 (which I cannot use on the Series-4, which has an ICE-85B), ICE-51 and ICE-49. I especially want to use the ICE-80 so I can do some 8080 development (may as well use the stock of chips I got). I'm gonna see if I can pull out the single-density drive in the 225 and put in one of the double density drives from the array. However, before I do that, does anyone know the cable pinouts - 'cos I might try and make a cable first. Or does anyone know where I can get a cable? In the final run, if I can't do anything much with it, I can always use the parts for spares and other stuff. Oh, final question... I also have an iPDS that's been waiting for a boot disk. Can I use my Series-4 ISIS-II disks in this unit? Will it boot, or is this unit doomed to be pulled apart for spares also? seeyuzz river

21 years, 8 months

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Panasonic 805 Calculator

by cb＠mythtech.net

>Are you sure it's a LED display? That sounds more like behavior I would >expect of a vacuum fluorescent display. If an LED really is doing that, >the problem is with the electronics, not the diplay. I can't be sure. I didn't think it was an LED (the unit is from around 1970 or so), but when I looked at it a little while ago, it looked kind of like LED segments behind the plastic lens. They glow a bluish green if that is any help. They don't look like any LED out today, that's for sure. I've never knowingly seen a vacuum fluorescent display, so I can't compare. If this is one, is it a problem that is fixable? -chris <http://www.mythtech.net>

21 years, 8 months

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Votrax PSS Manual

by lord_nightmare＠users.sourceforge.net

I recently obtained a Votrax PSS which did not include the power supply or the manual. Thanks to Robert Stek's informative post (http://www.classiccmp.org/pipermail/cctech/2003-February/010608.html) on this list in feb '03, I am in the process of constructing a power supply for it. However, I still need a copy of the manual, so I can figure out how to set the various modes of the device, and control the AY-3-8910 audio generator chip. If anyone has the manual for the Votrax Personal Sound System and has some means to scan or digitize it (a digital camera will work) can they send me a copy of the images? It would be much appreciated. Jonathan Gevaryahu lord_nightmare_(a)t_users.sf.net (remove the _@t_ and replace with @ to demangle the address)

21 years, 8 months

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Panasonic 805 Calculator

by cb＠mythtech.net

My father has a very much loved Panasonic 805 calculator. However, in recent months, one of the LED segments has begun to misbehave. It is getting steadily worse. What happens is, in general the segment is dim, and once a segment lights, it doesn't seem to turn back off until you clear the calculation. As a result, very quickly, the one segment just stays on 8. Since this is the ones column, it effects all calculation displays (the calculation itself works fine, it always knows what the number should be, it is just the display of that number that doesn't work). Does anyone have any repair info on this calculator? Schematics or otherwise? I'd love to be able to open it and replace the segment, or whatever may be misfiring to cause it to display wrong. He hates to give it up, but he is finding it increasingly hard to use. -chris <http://www.mythtech.net>

21 years, 8 months

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dec racks available

by jwest＠classiccmp.org

I received the following email: I have two DEC 72 inch high racks. They contain some custom electronics (useless to anyone else) and power supplies. The racks are in good condition. These racks are available for pickup only in eastern PA. If anyone is interested contact me off-list. Jay

21 years, 8 months

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Oldest computer on the internet?

by msokolov＠ivan.Harhan.ORG

Ashley Carder <wacarder(a)usit.net> wrote: > Does anyone know what the oldest documented functional computer is that is > connected to the internet? > ..... and is accessible by others via telnet, etc? Hmm, would probably have to be a FOONLY running TENEX or something of that era, I don't think VAXen running 4BSD quite cut it. For the record I run MicroVAX III's with 4.3BSD-Quasijarus, but I really hope that I'm not the oldest and that there are some people running plain 4.3 or even 4.2 on an 11/7xx connected to the net. Hell, since mine are all MicroVAX III's, even someone with a MicroVAX II will beat me. But then I will probably be putting together a new router soon and that one will have a MicroVAX II CPU, so at least I'll have that. MS

21 years, 8 months

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LF: TRS-80 Model II boot disk

by GFisher＠tristonecapital.com

Dave, I've got boot disks for TRSDOS 2a and P&T CP/M 2.2m if you're interested. Reply to me off list and we get something going. Gary Fisher C/O Tristone Capital Inc. Suite 1800, 335 - 8th Avenue SW Calgary, Alberta T2P 1C9 B: 403.303.8657 F: 403.294.9543 E:gfisher@tristonecapital.com This e-mail and any attachments may contain confidential and privileged information. If you are not the intended recipient, please notify the sender immediately by return e-mail, delete this e-mail and destroy any copies. Any dissemination or use of this information by a person other than the intended recipient is unauthorized and may be illegal. Unless otherwise stated, opinions expressed in this e-mail are those of the author and are not endorsed by the author's employer. Your original message: Message: 28 Date: Fri, 17 Dec 2004 07:20:11 -0500 From: Dave Dunfield <dave04a(a)dunfield.com> Subject: LF: TRS-80 Model II boot disk To: cctalk(a)classiccmp.org Message-ID: <20041217122010.XCTJ5758.orval.sprint.ca(a)smtp.sprint.ca> Content-Type: text/plain; charset="us-ascii" Hi Guys, Have a TRS-80 Model II which I am planning to restore (probably get started over the holidays) - but one thing I am going to need is a boot disk. Anyone out there got a working Model II system? (This is the big "business" version with the single- sided 8" drive). Regards, Dave PS: Also still looking for a Cromemco System-3 boot disk. -- dave04a (at) Dave Dunfield dunfield (dot) Firmware development services & tools: www.dunfield.com com Vintage computing equipment collector. http://www.parse.com/~ddunfield/museum/index.html

21 years, 8 months

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LF: TRS-80 Model II boot disk

by dave04a＠dunfield.com

Hi Guys, Have a TRS-80 Model II which I am planning to restore (probably get started over the holidays) - but one thing I am going to need is a boot disk. Anyone out there got a working Model II system? (This is the big "business" version with the single- sided 8" drive). Regards, Dave PS: Also still looking for a Cromemco System-3 boot disk. -- dave04a (at) Dave Dunfield dunfield (dot) Firmware development services & tools: www.dunfield.com com Vintage computing equipment collector. http://www.parse.com/~ddunfield/museum/index.html

21 years, 8 months

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Altair switch handle measurements

by dave04a＠dunfield.com

At 14:00 16/12/2004 -0500, you wrote: >Hello, all: > > If anyone has access to an Altair 8800 (the original model) and can >measure the toggle switch handles, I would greatly appreciate it. I need the >length of the handle from the top of the threaded collar to the end of the >handle. > > Thanks a lot. > >Rich Hi Rich, Since no-one else has repsonded, I uncrated my 8800 and measured the switches. This measurement is difficult, because the top of the collar does not protude through the front panel, and in fact does not come all the way through to the face of the panel. I measured the switches by holding a toothpick against the top of the collar, and straight out beside the switch - marking the top of the switch, and then measuring the toothpick. Measurements are from the collar to the furthest out edge of the dome at the end of the switch handle. Both switch types (two position and three position) are exactly the same length. I measured the two position switch by positioning it 1/2 way (straight out) . And the measurements are (drum roll please): 11mm (7/16 inches) Regards, Dave -- dave04a (at) Dave Dunfield dunfield (dot) Firmware development services & tools: www.dunfield.com com Vintage computing equipment collector. http://www.parse.com/~ddunfield/museum/index.html

21 years, 8 months

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Eagle CP/M machine available from November

by wpileggi＠juno.com

To the half dozen+ listees who responded to my listing this computer as available in November: The guy who had the Eagle has certainly moved out of his apartment by now - as it is well after the first of the month. I presume the box went to computer heaven and we were not able to rescue it. I guess that's the way things go sometimes. Thanks to all. Bill. ________________________________________________________________ Juno Gift Certificates Give the gift of Internet access this holiday season. http://www.juno.com/give

21 years, 8 months

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Wanted: M9312 RX01 bootstrap ROM

by wacarder＠usit.net

I'm looking for an M9312 bootstrap ROM for an RX01 drive. I believe the DEC number on the chip is 753A9. Does anyone have one of these that they would be willing to get rid of? I have other M9312 ROMs to trade. Thanks, Ashley

21 years, 8 months

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Final CP/M-80 diskette inventory

by tomj＠wps.com

I got the last box of junk from my brother, and just inventoried the floppies, going by the labels. I likely have errors in sidedness/density but they were all made on one of two CP/M machines; I have one here and the other (my father's) is still in Mass and I can get it if necessary. I have no idea whats actually on them or which ones are readable, that come snext after I power up the cards. I've gone through the chassis already and it's fine. I'll probably do smoke tests today. There's some good stuff I think. BDS C, CBBS from 81 (sources plus BBS files), Stackworth FORTH, JRT Pascal, some other Pascal, Aztec C, FORTRAN IV (likely TDL/Xitan), F80, M80, L80, etc (m'soft) basic compiler (ugh) old DBASE, etc... I'll make everything available ASAP. Diskette label Media Location ?Copy Teletek CP/M? SN 2-301-01089, FDC-I, with VDISK, & WS 3.3 MAILMERGE SSDD Grey binder Dad's Microsoft CP/M Basic Compiler vers. 530 copy SN16395 SSSD Grey binder Dad's COM (not BASIC) games #2, Adventure SSDD Grey binder Dad's SUPER-CALC SH=microshell SSDD Grey binder Dad's CHESS SSSD Grey binder Dad's ZIP 2.4 SSSD Grey binder Dad's Dbase example files sysgened DSDD Teletek format DSDD Grey binder Dad's (TJ) ASM86 GENCMD MODEM7 STRIPCMD ZSID TRACE+HIST UTL SID ASM MAC LINK L80 M80 SSSD Grey binder Dad's. AZTEC 'C' side #1 ver 1.05g #6425 SSSD Grey binder Dad's AZTEC 'C' side #2 ver 1.05g #6425 SSSD Grey binder Dad's FORTRAN IV ver 3.05 copy from ser# 0199; also marked L80 M80 SSSD? Flippy disk! Beige binder ?CP/M Utilities? Casing has serious warpage; heat or time, media looks OK. PMATE 3.02 WordStar 3.00 Beige binder ?CP/M Utilities? Tomj F80 L80 M80 DSDD Beige binder ?CP/M Utilities? Dad's Some str??? .COM? DSDD Beige binder ?CP/M Utilities? Dads; may be blank. Perfect Writer Speller PMATE 1-84 SSSD Beige binder ?CP/M Utilities? ? NEW ADVENTURE OTHELLO NO SYSTEM SSSD Beige binder ?CP/M Utilities? DUU & NICE.DOC ?shouldn't be anything else? NEW TELINK.C (Lattice ver.) MYCHESS SSSD Beige binder ?CP/M Utilities? Backup disk for Telink C Sources (TJ) DEC 82 SSDD Beige binder ?CP/M Utilities? C' BDC [I think means BDS] 1.45 WORKING Telink Xtelink SSDD Beige binder ?CP/M Utilities? An inte??um copy of Telink.C only SSDD Beige binder ?CP/M Utilities? Aztec work disk SSSD Beige binder ?CP/M Utilities? CBBS v3.5 BOTH SIDES SSSD flippy disk! Blue binder, ?Originals? Stackworth FORTH SPEED.COM SS?? Blue binder, ?Originals? WS 1.01 & 3.00 PMATE 3.0 DSDD Blue binder, ?Originals? JRT Pascal ORIGINAL [handwritten] SSSD Blue binder, ?Originals? BULLETIN BOARD SSDD Blue binder, ?Originals? Printout of DIR; 5/10/81. CBBS sources and BBS files BBS DOC FILES SSDD Blue binder, ?Originals? DBASE 2.4 SRC SSSD Blue binder, ?Originals? DWS ? NWS v1.01 SS?? Blue binder, ?Originals? WordStar Little Fido's Bugger ? VB3 DSSD Brown Dysan box, ?Little FIDO CP/M Sources? Bugger for SSM VB3 card Fido's Double Sided System Disk 3/15/82 DSSD Brown Dysan box, ?Little FIDO CP/M Sources? Fido's Double Sided System Disk #2 2/14/82 DSSD Brown Dysan box, ?Little FIDO CP/M Sources? FIDO's CCP SSSD Brown Dysan box, ?Little FIDO CP/M Sources? CP/M CCP replacement program; see ?Little Fido ? software binder CP/M 2.21 for FIDO working BIOS disk BACKUP 4/6/82 1/24/82 SSSD Brown Dysan box, ?Little FIDO CP/M Sources? VB3 BIOS 4/6/82 27 April 82 SSSD Brown Dysan box, ?Little FIDO CP/M Sources? Fido's System Disk #2 1/24/82 SSSD Brown Dysan box, ?Little FIDO CP/M Sources? Doc files SSSD Brown Dysan box, ?Little FIDO CP/M Sources? Little Fido's system disk 29 Aug 82 SSSD Brown Dysan box, ?Little FIDO CP/M Sources? Fido's system disk 62K 2.21 7/10/81 3/22/82 DSSD Brown Dysan box, ?Little FIDO CP/M Sources? Little Fido's System Disk Double Sided 11 Aug 82 DSSD Brown Dysan box, ?Little FIDO CP/M Sources? IBUG, PARSE, RLOCATR2 12/20/81 SSSD Brown Dysan box, ?Little FIDO CP/M Sources? BDS 'C' 1.41a as of 1/21/81 see 141.DOC SSSD Dysan box, no markings C' sources 5/15/81 BAUD SSSD Dysan box, no markings BDS 'C' 1.41 Diskbug Makedb Zapload Stripcmd SSSD Dysan box, no markings Has Microft Inc sticker BDS C 1.41 for TRS80 2 of 2 SSSD Dysan box, no markings BDS C 1.41 for the TRS *) 5/20/81 1 of 2 SSSD Dysan box, no markings Algol SSSD Dysan box, no markings Huh?! Stackworth FORTH TJ 4/30/81 SSSD Dysan box, no markings Pascal SSSD Dysan box, no markings INDEX EPROM SSSD Dysan box, no markings Modem 2.17 etc 11/30/81 SSSD Dysan box, no markings Development System COM files ASM LINK etc --- 2/18/81 disk #1 SSSD Dysan box, no markings Dev. Sys. COM files 2/18/81 Disk #2 SSSD Dysan box, no markings Dev. Sys. COM files 2/18/81 Disk #3 recopied 5/26/81 SSSD Dysan box, no markings FIDO formatter 7/10 FIDO copy 7/10 Sysgen 7/30 7/9/81 SSSD Dysan box, no markings COPY (disc copy utility) for FIDO CP/M 2.21 7/11/81 SSSD Dysan box, no markings Old IMDOS disk, has DIABLO printer driver SSSD Dysan box, no markings

21 years, 8 months

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WTB: DECstation 5000/1xx

by sethm＠loomcom.com

I'm looking for a DECstation 5000, a fairly recent and marginally classic MIPS workstation DEC sold in the early 1990s. (Well, it's classic to me for nostalgia reasons, but I won't get into that). I'm specifically looking for a 5000/133 or /150, but really any 5000 will do. I'd be happy to pay shipping and a reasonable price (reasonable being something in the < $50 range, since that seems to be the going rate), and/or I have a MicroVAX 3100 (desktop case, 16MB RAM, 1GB disk, 8 serial lines) I'd be happy to trade. If anyone has a lead on one, please let me know! -Seth -- "It looks just like a Telefunken U47! Seth Morabito You'll love it." - Frank Zappa sethm(a)loomcom.com

21 years, 8 months

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Vintage Edison Recorder...

by cvendel＠att.net

This is OT, however, If anyone is into historical items, this is something you should have a gander at: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=38029&item=229457049… True piece of early Edison history there! Curt

21 years, 8 months

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DECwriters (was Re: Auction Finds)

by CPUMECH＠aol.com

Those keyswitches are actually contacts that need a special tool for replacement. I used to do hundreds of them at Dataterm Inc. They still have the contacts and inserts for those keybds.Give them a call @ 781-938-1010 or e-mail - service(a)dataterm.com

21 years, 8 months

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Altair switch handle measurements

by RCini＠congressfinancial.com

Hello, all: If anyone has access to an Altair 8800 (the original model) and can measure the toggle switch handles, I would greatly appreciate it. I need the length of the handle from the top of the threaded collar to the end of the handle. Thanks a lot. Rich

21 years, 8 months

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Need help with 2 projects (TI and Xerox)

by truthanl＠columbus.rr.com

Marty Greene, There are others of us who have TI 990/systems in storage. I have 2 990/10 systems. DX-10 OS with 10M cartridge (CDC?)drives. Mine came from a Paradyne Corp Modem Analysis system tracking 300 Paradyne 2400 Baud multi-drop circuits on an 800 hz subcarrier over dedicated lines. So I have lots of serial ports...Each modem had data and an analysis port. Sincerely Larry Truthan I may also have a Xerox Sigma diagnostics tape and or journal somewhere in the basement.

21 years, 8 months

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Possible to speed up I/O subsystem of 5150?

by Innfogra＠aol.com

eight bit controllers to look for: Seagate ST-05X Xt to IDE Seagate ST-11M MFM Seagate ST-11R RLL SMS/OMTI 5520 MFM SMS/OMTI 5527 RLL Western Digital WD XT140 IDE note: separate cables - 2 drives Western Digital WD XT150R IDE note: 1 drive only Western Digital WD XTGEN MFM Western Digital WD XTGEN2 MFM best interleave I think -0 bigger capacity Western Digital WD XTGENR RLL Western Digital WD 1002-WX1 MFM slow interleave Western Digital WD 1002-27X RLL slow interleave Western Digital WD 1004-WX1 MFM better interleave bigger capacity Western Digital WD 1004-27X RLL better interleave Hope this helps. Paxton

21 years, 8 months

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electro-Physics: 17.3409 volts

by jfoust＠threedee.com

At 02:55 PM 12/13/2004, you wrote: >the only sound physical reason for fractions is cooking... the general populace is so technically illiterate that is really doesn't make a difference whether things are in fractions or decimal. They really don't have a clue anyway. When was the last time you heard any clerk actually count change out or someone realize that 1/4 cup is 1/2 of a 1/2 cup... But measuring by volume isn't necessarily the best method, either, particularly for flours that vary in volume depending on how long they've been sitting, the weather, or whether they've been sifted. They teach fractions like that in third or fourth grade. There's no excuse. - John P.S. Watch for me on the Food Network's "The Next Food Network Star" contest.

21 years, 8 months

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electro-Physics: 17.3409 volts

by dwight.elvey＠amd.com

>From: "Paul Koning" <pkoning(a)equallogic.com> ---snip--- > >Some of this discussion reminds me of the "arguments" why the metric >system is inferior to the US system of measures. Contrary to what Tom Jennings states in a later post, there are sound physical reasons for using fractional systems when dealing with the physical world. I'm not defending the English system that is a hodgepodge of poorly related measurement standards. The only reason we have a decimal system is because of the number of fingers we have. Hardly a sound reason to squeeze physical relations into. One wonders why there are 2.5mm screws when the decimal system works so well. If we'd had 8 finger, things would have been so much easier to work with. 8 is 2 cubed and one hand would be 4 or 2 squared. These both fit nicely into the physical world were squares cubes are most often worked with. Even logs would have made more sense under a base 8 system. > >I don't actually know where 50 and 60 Hz came from, nor 100 and 115 >and 220 and 240 volts. There may be some ancient justification in the >tinkerings of various 19th century engineers, but it seems to me it >makes most sense simply to view them as random numbers. I've been trying to find some actual history on the 50/60 thing on the net but so far, all I was able to find was that cell phones are frying our brains. My understanding was that it was a balance between efficient generation and efficient transformers. The voltages were mainly to control line loss. In the US, most people live close to their distribution transformer and line loss is not that high at 110-115V. Dwight > > paul > >

21 years, 8 months

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Are HP 2671's repairable?

by vp＠cs.drexel.edu

BTW if you are looking for the manual for the HP 2671A and G its available at: http://www.series80.org/Manuals/index.html#HP2671 **vp

21 years, 8 months

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Indigo/SGI drives

by Saquinn624＠aol.com

On all of my replaced SCSI drives, I use SCA adaptors and SCA drives- much easier to get nowadays than 50 pin models, and also newer. Any drive will work-they do not need special firmware The deal for SGI sleds is as follows- The 50 pin cable goes into the 50 pin narrow SCSI socket on the adaptor- self explanitory The power cable will often need to be teased out a little longer (at least on Indigo2, I don't have my Indigo sled at hand) For the SCSI ID cable (the 6-pin bit) you will need a VOM/DMM. One side will have a bank of 3 wires, the other will have 1 wire. On the adaptor, there will be 3 pins wired together -> these are ground, connect to the single pin side. The other wires set the SCSI ID based on which slot in the Indigo the drive is installed If you choose to hardwire the drive (not as neat, but a definite possibility), remember that on IRISes the host adapter is ID 0, so the first (system) disk is ID 1- and so on. Most computers have the host adapter as ID #7, but not Siggys. Best of luck to you, they are very neat machines, with a slick UI (Indigo Magic)- For IRIX 5.3 be sure to get the free IDO (Development Option-compilers and headers, available from www.sgi.com) Scott Quinn

21 years, 8 months

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NEXT@CNN & Even

by Saquinn624＠aol.com

I seem to have spoken too quickly, put my foot in my mouth, and in the process created a synthetic monster and slandered Even. I was unaware of what was going on. Please consider this my apology.

21 years, 8 months

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TI Silent 700 power supplies

by dwight.elvey＠amd.com

>From: "Vintage Computer Festival" <vcf(a)siconic.com> > >On Wed, 15 Dec 2004, Michael Sokolov wrote: > >> Vintage Computer Festival <vcf(a)siconic.com> wrote: >> >> > Because there are three conductors sockets on the end plug and I don't >> > know what is supposed to be on each one. >> >> Well, 20 VAC between the ends, don't know about the middle. > >Ok, that's good information, but for good measure it would be nice to know >what the voltage is across the middle pin and either end pin. > >Thanks! > Hi Sellam Do all the pins show low ohms to each other? It might be a center tap or even just a ground lead that doesn't carry current. Since you have the box open, you should be able to see where all the wires go. Dwight

21 years, 8 months

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Are HP 2671's repairable?

by dwight.elvey＠amd.com

Hi Bob There used to be a place around here called Motion Industries. I believe they changed there name but they were a nation wide company and had branches across the nation. They carried all the standard cogged belts and such. I'm sure they'd have what you need. They might still have the same name or something similar. It has been a few years since I used them ( like about 10 or so ). Dwight >From: "Bob Shannon" <bshannon(a)tiac.net> > >Are parts available to repair a HP 2671G printer? > >I'd like to replace the geared belt that drives the print-head. >I'm not at all sure that the head can be removed from this belt >so I may be talking about a complete head and belt assembly >which I'd assume is unobtainium. > >If its just a matter of attaching the head to a replacement >belt, does anyone have the specs or a source for the belt? > >Apparently whatever these belts are made of gets old in a >bad way, they become sticky and brittle, both are bad for >drive belts. > >Given this, I'm assuming even a new-old stock drive belt would >not be servicable. >

21 years, 8 months

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Off the wall CGA monitor question

by bob＠jfcl.com

Can anybody tell me if a "proper" (i.e. true IBM compatible) CGA (CGA, not MDA, EGA or VGA) monitor had a male or female connector? I know it had a DB-9 with approximately this pinout 1,2 Ground 3 Red 4 Green 5 Blue 6 Intensify 7 N/C 8 Hsync 9 Vsync All signals are TTL and active high, as I remember. Anybody in the SF Bay Area got a real CGA monitor that they don't want anymore? Thanks, Bob Armstrong

21 years, 8 months

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VB3 Video Board (was Shugart 850's)

by Watzman＠neo.rr.com

Tom Jennings, do you have access to the manual on the SSM VB3 video board? I'd love to get that scanned and into the archives. Barry Watzman Watzman(a)neo.rr.com

21 years, 8 months

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Stupid TI power supply

by msokolov＠ivan.Harhan.ORG

Tom Jennings <tomj(a)wps.com> wrote: > Michael S. answered this for you, correct? I did, I guess he didn't like my answer. > 20VAC nominal? Yup. MS

21 years, 8 months

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TI Silent 700 power supplies

by msokolov＠ivan.Harhan.ORG

Vintage Computer Festival <vcf(a)siconic.com> wrote: > Because there are three conductors sockets on the end plug and I don't > know what is supposed to be on each one. Well, 20 VAC between the ends, don't know about the middle. MS

21 years, 8 months

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