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

Homebuilt S-100 TRS-80s - initial report

by dave04a＠dunfield.com

Hi Guys, Well --- I played with these two machines this evening. Case anyone missed my original posting - as part of a sizable load of equipment I picked up this past weekend, I received two homebrew S-100 systems which are reported to be complete implementations of a TRS-80 on S-100 cards. They had been stored for a long time in a cottage, so they were quite dirty (fortunately no evidence of mice!) - Removed all cards, cleaned up the slots and connections, checked out the power supply, reinserted the cards, hooked up a Zenith monitor and fired the first one up... Immediately got a "Cass?" prompt, then "Memory size?", and finally: Radio Shack Model III BASIC .... normal Model III stuff ... READY > yup - the thing actually works! This one has: WAMECO CPU-2 Z80 CPU card SSM VB1B video card, with fairly extensive modifications, presumably to make it TRS-80 video compatible. A standard S-100 memory card (didn't write the type down). A homebuilt card which has EPROM copies of the TRS-80 ROMs, as well as a fair bit of logic, speaker circuit, keyboard interface --- I would guess "Everything else" from the TRS-80. So, I moved on to the second one - this one has the same cards as the one above, plus a homebuilt disk controller card. Cleaned it up, checked the supply, powered it up and --- NOTHING! Then I remembered that you need to hold BREAK at reset/power-up on TRS-80s with disks to get to ROM basic ... Tried holding BREAK and voila! - same prompts as above! So, I hooked up the drives, powered on - sure enough, Drive 1 came on... Put in a TRS-DOS disk for the Model III, and hit reset --- Next thing I know, I'm in TRS-DOS, running exactly like a Model III. !!! As Sellam put it so eloquently ... this things are effing cool! Will take pics this weekend, and try to get them (and more of the new stuff) on the site sometime next week - will post a notice when ready. Regards, Dave -- dave04a (at) Dave Dunfield dunfield (dot) Firmware development services & tools: www.dunfield.com com Collector of vintage computing equipment: http://www.parse.com/~ddunfield/museum/index.html

21 years, 3 months

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Looks like cctech as well...

by jpl15＠panix.com

We now pause our regularly-scheduled maillist for: CHAOS! Cheers A. Turing's Machine

21 years, 3 months

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Unsub message full headers

by jpl15＠panix.com

Return-Path: <cctalk-bounces(a)classiccmp.org> X-Original-To: jpl15(a)panix.com Received: from dewey.classiccmp.org (dewey.classiccmp.org [209.145.140.57]) by mail3.panix.com (Postfix) with ESMTP id 6ED27981D2 for <jpl15(a)panix.com>; Wed, 12 Jan 2005 22:35:52 -0500 (EST) Received: from dewey.classiccmp.org (localhost [127.0.0.1]) by dewey.classiccmp.org (8.13.1/8.13.1) with ESMTP id j0D3W1MF002092 for <jpl15(a)panix.com>; Wed, 12 Jan 2005 21:32:11 -0600 (CST) (envelope-from cctalk-bounces(a)classiccmp.org) MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Subject: You have been unsubscribed from the cctalk mailing list From: cctalk-bounces(a)classiccmp.org To: jpl15(a)panix.com Message-ID: <mailman.191.1105585655.1000.cctalk(a)classiccmp.org> Date: Wed, 12 Jan 2005 21:07:35 -0600 Precedence: bulk X-BeenThere: cctalk(a)classiccmp.org X-Mailman-Version: 2.1.5 List-Id: "General Discussion: On-Topic and Off-Topic Posts" <cctalk.classiccmp.org> X-List-Administrivia: yes Sender: cctalk-bounces(a)classiccmp.org Errors-To: cctalk-bounces(a)classiccmp.org X-Virus-Scanned: ClamAV 0.80/663/Tue Jan 11 16:44:48 2005 clamav-milter version 0.80j on dewey.classiccmp.org X-Virus-Status: Clean X-Spam-Status: No, hits=-104.7 required=3.0 tests=BAYES_00,NO_REAL_NAME, USER_IN_WHITELIST autolearn=ham version=2.64 X-Spam-Checker-Version: SpamAssassin 2.64 (2004-01-11) on dewey.classiccmp.org Cheers John

21 years, 3 months

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"Cold heat" soldering?

by cb＠mythtech.net

>the attraction is to all the people that burn themselves WHENEVER they >pick up a soldering iron... I thought those burns where a right of passage in using an iron!?! -chris <http://www.mythtech.net>

21 years, 3 months

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How the Mac was born... supposedly...

by news＠computercollector.com

http://news.com.com/How+the+Mac+was+born%2C+and+other+tales/2008-1082_3-552… ===== 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 -- W: http://news.computercollector.com E: news(a)computercollector.com -- 644 readers and counting!

21 years, 3 months

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test

by jpl15＠panix.com

?

21 years, 3 months

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"Cold heat" soldering?

by dwight.elvey＠amd.com

>From: chris <cb(a)mythtech.net> > >>Still, they seem to be selling like mad, but if they're no good for >>electronics then what's the attraction? > >Yeah, I was a little surprised to see in their FAQ's that they say it is >NOT recommended for electronics use... considering the commercial CLEARLY >shows a person using it on electronics! > >I guess its another example of do as a I say and not as I do (eh, who am >I kidding, all these "as seen on TV products" use them on TV in ways that >they tell you not to use them) > Hi It is something like the Sears ad where they took a pair of pliers to the axle nut of a bicycle. They even used one of the people that ran a house fixer-up show to do it. He should have been ashamed of him self. I couldn't believe they were actually doing it with a smile. Dwight

21 years, 3 months

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How the Mac was born... supposedly...

by aek＠spies.com

I was in Well territory in 1988. -- When I was on, it was a vax 750 running BSD with just the start of all that community stuff. I just used it for mail and reading news, from a normal shell. -- The Foothill/Wierd/Halted thing was too damn great. -- Weird Stuff in Milpitas was great. That was where I found most of my Xerox stuff. With 20/20 hindsight (and more space) I should have grabbed things like the PDP12 that came in and the PERQ 1. Halted didn't (and still doesn't) do much for me. I got to know the last batch of folks running Haltek pretty well, and I was the one that bought their data book collection when they were forced out.

21 years, 3 months

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How the Mac was born... supposedly...

by aek＠spies.com

> The earliest > development software was full of Xerox copyright notices... The only direct connection I can think of (which wouldn't have contained Xerox copyrights) was Bill Duval's assembler, which was developed on an Alto. The SUMACC port of PCC would have had lots of MIT/ATT (c)'s, though. There may have been some Silicon Valley Software (c)'s in things like the PASCAL compiler.

21 years, 3 months

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Soldering injury tales

by jpl15＠panix.com

>From age 15 to 17, I worked after-school at a car stereo company, which, back then (1968+) meant 8-track mostly, some 4T, and a few 'exotic' cassette players. One late spring afternoon, after having been 'out' most of the night, full day of school, warm late afternoon. music playing - John fell asleep in the middle of replacing a fried transistor and nodded off - actually I nodded *onto* my soldering iron and was awakend by the smell and the sizzle of a neat, surf-board shaped patch of skin being branded into my *forehead*. So I got to spend the next three weeks going to classes and explaining the tribal markings I'd given myself. Of course, over the years, I've grabbed my share of the stupid end of hot irons, including dropping one while I was working on the power supply of my [ob:classiccmp] PDP11/34. Cheers John PS: I was *not*, however, using Nassau solder. I was saving *that* for eBay... ;}

21 years, 3 months

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cool - Classic Computers 2005 Calendar

by tosteve＠yahoo.com

I always wanted to do this, but now it is too late! Looks like a nice calendar featuring home computers >from the 70's and 80's (No PDPs) - $12.99. I have no affiliation with this website. http://www.digicraft.com.au/calendars/ __________________________________ Do you Yahoo!? The all-new My Yahoo! - Get yours free! http://my.yahoo.com

21 years, 3 months

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Need Altos Tape Interface Program (TIP)

by Watzman＠neo.rr.com

I have several versions, circa 1982-1985, of Alloy's "TIP" tape program. However, there is nothing about them that is Altos specific, they had a "general purpose" S-100 interface board. I believe that they are all 8-bit CP/M-80 programs. Contact me if you want to discuss further. Barry Watzman (Watzman(a)yahoo.com)

21 years, 3 months

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"Cold heat" soldering?

by melamy＠earthlink.net

that way the hot tip lands on your ankle or leg instead of the floor where is can ruin the finish... -----Original Message----- From: Randy McLaughlin <randy(a)s100-manuals.com> That's what they make cords for. Always grab the cord when it is falling. Randy

21 years, 3 months

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"Cold heat" soldering?

by cb＠mythtech.net

>It wasn't falling - it was laying on a desk. I picked it up, but I picked up >the wrong end. Sizzle sizzle... Some how many moons ago, I managed to pick up a butane iron by grabbing the heater on it. The tip of my index finger covered the glowing red air hole. That was fun as I screamed and literally had to peel the iron off my now crispy finger tip (taking a good deal of charred flesh with it). -chris <http://www.mythtech.net>

21 years, 3 months

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Only 6 Domain names ?!?

by msokolov＠ivan.Harhan.ORG

First of all, there is nothing wrong with using the word "registered" in 1985. SRI-NIC (the original ARPANET/Internet registry) had existed long before 1985. It originally registered hosts and even their users, but when domains were invented (RFC 882/883 timeframe, 1983-ish) SRI-NIC was registering them too. As for DNS use in 1985, consider that 4.3BSD, the first Berkeley release with DNS, was released in early 1986, and was definitely working well inside Berkeley in 1985. So Berkeley.EDU was up in 1985, and its DNS implementation incorporated the changes between 882/883 and 1034/1035, i.e., 1034/1035-style DNS was in operation in 1985 two years before being formally codified in the RFCs. In fact I just checked WHOIS and BERKELEY.EDU was registered on 1985-04-24. Since it was one of the first, it is in fact quite plausible that there were indeed 6 domain records in the SRI-NIC registry in 1985. MS

21 years, 3 months

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"Cold heat" soldering?

by melamy＠earthlink.net

"rights of passage" are fine, but not everytime... the medical co-pay would be a killer -----Original Message----- From: chris <cb(a)mythtech.net> Sent: Jan 12, 2005 11:33 AM To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk(a)classiccmp.org> Subject: Re: "Cold heat" soldering? >the attraction is to all the people that burn themselves WHENEVER they >pick up a soldering iron... I thought those burns where a right of passage in using an iron!?! -chris <http://www.mythtech.net>

21 years, 3 months

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uPD7210 datasheet

by aek＠spies.com

National Instruments Corp. sells a GPIB controller (the NAT9914) which is compatible with the NEC 7210. The NAT9914 is their implementation of the TI 9914. The orig 9914 data sheet scan can be found at www.bitsavers.org/pdf/ti/_dataBooks/TMS9914A_dataSheet_Jun89.pdf

21 years, 3 months

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Kinetic's FastPath 4's

by adamg＠pobox.com

Brad Parker wrote: > If no one else can dig anything up let me know. I know a lot of > ex-shiva people - I might be able to find something. I'll send off some > email. Any chance you could get a spec for the Shiva Pipe protocol used by the LANrovers? -- Adam

21 years, 3 months

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uPD7210 datasheet

by vp＠cs.drexel.edu

Philip Pemberton <philpem(a)dsl.pipex.com> wrote: > I've got a CEC PCI-488 GPIB card that uses it and the "Advanced Programming" > section of the manual makes a lot of references to the 7210 datasheet... National Instruments Corp. sells a GPIB controller (the NAT9914) which is compatible with the NEC 7210. The reference manual (370875A-01, 320744B-0), June 1995 is available at: http://www.ni.com/pdf/manuals/370875a.pdf NI also makes another controller, the NAT9914 which has two modes of operation: (a) TI 9914 and (b) NEC 7210. The manual of the NAT9914 contains full descriptions of both the 9914 and 7210 modes. The NAT9914 Reference Manual (370876A-01, 320775-01), June 1995 is available at: http://www.ni.com/pdf/manuals/370876a.pdf **vp

21 years, 3 months

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"Cold heat" soldering?

by melamy＠earthlink.net

the attraction is to all the people that burn themselves WHENEVER they pick up a soldering iron... -----Original Message----- From: Vintage Computer Festival <vcf(a)siconic.com> Still, they seem to be selling like mad, but if they're no good for electronics then what's the attraction?

21 years, 3 months

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Lots of S-100 card docs avail/wanted

by kelly＠catcorner.org

From: Joe R. Subject: RE: Lots of S-100 card docs avail/wanted > At 09:53 PM 1/11/05 -0500, you wrote: >> -----Original Message----- > I think I may have one of these. Years ago I picked up a large metal > chassis that I was told was a TRS-6000 and IIRC it did have TRS cards > in it but it was NOT in the usual plastic chassis (I have one of them > too). I pulled it apart and looked at it and as best I can remember it > has 3 Mb of RAM, a 68000 CPU and a Z-80 CPU and a LOT of serial ports. > I also got a huge stack of TRS-6000 disks and docs with it. I thought > perhaps it was a TRS-6000 that someone had taken apart and mounted > in a metal chassis but your message makes me wonder. It's been > years since I looked at the thing and I don't remember what > form-factor cards are in it. > > Joe Joe: If you're ever interested in unloading this, and/or the disks let me know. If you ever get a chance, I'd love to see some pictures of this beast! Kelly

21 years, 3 months

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"Cold heat" soldering?

by cb＠mythtech.net

>Still, they seem to be selling like mad, but if they're no good for >electronics then what's the attraction? Yeah, I was a little surprised to see in their FAQ's that they say it is NOT recommended for electronics use... considering the commercial CLEARLY shows a person using it on electronics! I guess its another example of do as a I say and not as I do (eh, who am I kidding, all these "as seen on TV products" use them on TV in ways that they tell you not to use them) -chris <http://www.mythtech.net>

21 years, 3 months

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Lots of S-100 card docs avail/wanted

by CCTalk＠catcorner.org

> -----Original Message----- > From: Dave Dunfield [mailto:dave04a@dunfield.com] > Sent: Monday, January 10, 2005 11:45 PM > > > >> ** Two of the S-100 homebuilts are actually complete TRS-80's > >> implemented on S-100 cards - they run the TRS-80 ROMs unmodified > >> (with disk system) and load/run TRS-80 software! > > > >Holy crap II! That is fucking cool! Pictures!!! > > I thought so too - Very unique S-100 systems - I will be getting them > up and running, and will let you know how they work out. They > are mostly > homebuilt cards (except for memory). > > > >I want pictures of those homebrew TRS-80 S-100 systems. > That has to be > >the coolest S-100 system ever (next to the Atari S-100 stuff > I've got ;) > Are these Z80 TRS-80 systems, or the 68000 systems? There actually were some S-100 like systems (same connector, different board form factor) of the model 16/6000 series. They were used in large (for the time) dialup systems. I think they had 2+meg of ram and 2 or 3 four port serial cards. I have never seen these, only heard about them. Some were even modified to run 68010 CPUs. There are instructions out there somewhere for this mod, but no-one seems to have them readily available. They "lore" is that these instructions were saved in the swap area of one of the install boot diskettes. I was able to find and extract the games that were hidden there, but never these instructions. Kelly

21 years, 3 months

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Modern-ish HP 7908 disk drive?

by Arno_1983＠gmx.de

Hello everybody! You might remember my question about transport-locking HP-IB Harddisks last year; Al Kossow kindly added the installation manual to his Bitsavers site. Today I had a go at the drives; two of them (the 7912 and the standalone 7908) were absolutely no problem to do using the information he provided. The rackmount 7908 however was not - it looked very different inside; a completely different technology, it must be a later revision. No die-cast HDA taking up the whole width of the housing, merely a modernish smoked PMMA (?) hood covering several 8" (if so large) platters in the front-left corner of the assembly. No accessible spindle drive or actuator to be seen and no obvious way to lock everything in place. Can anybody please shed some light on how to prepare this unit? We don't want to risk transporting it as it is because the head assembly already moved when I only pulled the drive out of the rack. TIA, -- Arno Kletzander Stud. Hilfskraft Informatik Sammlung Erlangen www.iser.uni-erlangen.de +++ GMX - die erste Adresse für Mail, Message, More +++ 1 GB Mailbox bereits in GMX FreeMail http://www.gmx.net/de/go/mail

21 years, 3 months

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Lots of S-100 card docs avail/wanted

by dave04a＠dunfield.com

>> >> ** Two of the S-100 homebuilts are actually complete TRS-80's >> >> implemented on S-100 cards - they run the TRS-80 ROMs unmodified >> >> (with disk system) and load/run TRS-80 software! >> > >Are these Z80 TRS-80 systems, or the 68000 systems? There actually were some >S-100 like systems (same connector, different board form factor) of the >model 16/6000 series. They were used in large (for the time) dialup systems. >I think they had 2+meg of ram and 2 or 3 four port serial cards. I have >never seen these, only heard about them. Some were even modified to run >68010 CPUs. There are instructions out there somewhere for this mod, but >no-one seems to have them readily available. They "lore" is that these >instructions were saved in the swap area of one of the install boot >diskettes. I was able to find and extract the games that were hidden there, >but never these instructions. Yes, they are Z80 TRS-80 systems - the guy basically replicated a TRS-80 in homebuilt S-100 cards. I should have pictures up within the next week or two. Regards, Dave -- dave04a (at) Dave Dunfield dunfield (dot) Firmware development services & tools: www.dunfield.com com Collector of vintage computing equipment: http://www.parse.com/~ddunfield/museum/index.html

21 years, 3 months

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Some Genicom printer stuff available

by quapla＠xs4all.nl

I have some 400 fingers available for Genicom line printers. They should fit the models 310/320/33/ & 340. About 25 are individually packed in platic bags, the others are in 2 tubes with approx 200 fingers each. There are also 3 extractor tools and some instruction sheets. Free for the cost of postage. Ed G.

21 years, 3 months

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Intel SBC-116 (National BLC-116)

by river＠zip.com.au

Hi, Does anyone have the cct diagram for this board? It's an I/O, ROM, RAM M/Bus-I expansion board. river

21 years, 3 months

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Amdahl tapes

by dan＠ekoan.com

Hello, Is there anyone currently working with Amdahl equipment? I've got four spools of nine-track magnetic tape with various labels (AMATS, Amdahl Architectural Test Systems, Extended Memory Support, etc). I believe these were used by Amdahl field support. You can see the labels (and some Amdahl binders) at www.decodesystems.com/amdahl.html While I've read "There Are No Electrons" (written by Kenn Amdahl) I don't happen to have any Amdahl equipment -- so if there is anyone with an interest in these tapes please contact me off-list for trades, etc. Cheers, Dan www.decodesystems.com/wanted.html

21 years, 3 months

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Auction goodies

by tponsford＠theriver.com

Another good auction! For my $20 hard-earned dollars I picked up: a tabletop 9348-012 IBM SCSI (differential) 9-track tape drive (woohoo) so I can now make software tapes for my PDP's on my peecee!! Anybody have a manual for this beast?? I will gladly pay copying and mailing costs!! an Ohio Scientific 600 Single board computer (circa 1980) w/ power supply and cassette software along with these manuals: Servicing Data for Computer Boards 600 & 610 (challenger series) Assembler editor and Extended Monitor Reference Manual (C1P, C4P and C8P) Basic Reference Manual (ROM 65D and 65U) 65V Primer C1P and C1P MF Introductory Manual The Cip Users Manual Also a couple of IBM AT's (for the MFM drives) A couple of SGI Indy's (r5000's) miscellaneous peecee computer parts All-in-all a good day!! Cheers Tom -- --- Please do not read this sig. If you have read this far, please unread back to the beginning.

21 years, 3 months

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uPD7210 datasheet

by adamg＠pobox.com

The newer IEEE-488 chips emulate either the uPD7210 or the TMS9914 or both, so their docs might have the info you want. You should be able to find the following online: National Instruments TNT4882 Programmer Reference Manual 320724-01 National Instruments NAT7210BPD datasheet National Instruments NAT9914 Reference Manual (9914 but with 7210 mode) ines ieee488.2 iGPIB Hardware Manual Computerboards CB7210.2 data sheet Also, the source for Linux/NetBSD/FreeBSD IEEE-488 drivers might be helpful. -- Adam

21 years, 3 months

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Importing binary files without removable storage nor non-bundled software (was: TKermitFTP

by pete＠dunnington.u-net.com

On Jan 5 2005, 14:27, Fred Cisin wrote: > > > In the case of DOS 6.22, the message "Cannot do binary reads from a > > > device" is at offset 970F in COMMAND.COM > On Tue, 4 Jan 2005, Tom Jennings wrote: > > Sheesh, it only took them 10 years to declare it impossible and > > test for the error. > > Well, ... > in DOS 4.00, it is at offset 7CCC. It may have been there since QDOS? Dunno, I don't have quite such old versions :-) My old copy of "The MS-DOS Bible" says "every version" -- it means 3.30 and older -- disallows binary reads from devices. The same message is at 5254 in MS-DOS 3.30 (ditto in PC-DOS 3.30), at 4CA0 in 3.21, and 4CCC in IBM-DOS 4.01 (from a Compaq). I can't read my MS-DOS 2.10 and 2.11 disks on the hardware I have here. "Binary reads from a device are not allowed" is the message at 8753 in DR-DOS 3.41. All the ones that I could boot (ie all but 2.10/2.11) print the message and then exit when you try COPY /B CON: dummy . -- Pete Peter Turnbull Network Manager University of York

21 years, 3 months

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AIM65 with unknown second board

by websupport＠degnanco.com

Jules, Update to my previous reply: The board found on http://www.moosenet. demon.co.uk/temp/comps/aim65/board_front.jpg could be a Memory-Mate board. >From Electronic Design magazine November 1981: "..these fit underneith the AIM-65 to privide 16 to 48 kbytes of RAM expansion, four programable I/O ports, timers and counters, and PROM sockets. The board interfaces with the Rockwell computer's expansion connector. Another card, called the STD-Mate, connects to the Memory-Mate to link the system with an STD-bus motherboard and card cage, thus permitting STD-bus systems to be developed using the examine, alter, simple step, trace, breakpoint, and other features of the AIM-65." Bill Degnan Wilmington, Delaware vintagecomputer.net

21 years, 3 months

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uPD7210 datasheet

by pete＠dunnington.u-net.com

On Jan 11 2005, 10:49, Philip Pemberton wrote: > Nope - the 7210 was NEC's IEEE-488/HPIB/GPIB controller chip. I've got a CEC > PCI-488 GPIB card that uses it and the "Advanced Programming" section of the > manual makes a lot of references to the 7210 datasheet... NEC discontinued the 7210 a while ago, but a company called ComputerBoards makes a drop-in replacement. It has some extensions, so not everything described in the datasheet would work on a real uPD7210, but it might help. They have a 14-page data sheet on their website: http://www.7210.com/frames.html -- Pete Peter Turnbull Network Manager University of York

21 years, 3 months

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ISA-based SCSI card

by RMeenaks＠OLF.COM

with all the talk about ISA-based SCSI cards, here is 8-bit XT ISA SCSI card on epay: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&category=167&item=5120034528&r d=1&ssPageName=WD1V Cheers, Ram (c) 2005 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, 3 months

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AIM65 with unknown second board

by websupport＠degnanco.com

Jules, Most often expansion boards that came from Rockwell are 6 1/4" x 4" and fit into the Rockwell AIM expansion chassis. I bet this is a custom (?) XEROX prom monitor card adapted for the AIM 65. The card would not fit in the Rockwell expansion chassis. I have a lot of Rockwell hardware and documentation. If you send me the part # of the board I can look it up to confirm. Bill >Message: 22 >Date: Mon, 10 Jan 2005 13:16:45 +0000 >From: Jules Richardson <julesrichardsonuk(a)yahoo.co.uk> >Subject: AIM65 with unknown second board >To: "General Discussion: On-Topic and Off-Topic Posts" > <cctalk(a)classiccmp.org> >Message-ID: <1105363005.13406.26.camel(a)weka.localdomain> >Content-Type: text/plain > >Afternoon... > >We were given an AIM65 the other day (first time I've seen a real one) >in a rather fetching custom blue case that has a carry handle on one >edge. It was apparently used by Xerox for some for of magnetic media >testing way back when; it still carries a Xerox asset tag on the back. > >Unfortunately in between the previous owner saying they wanted it when >it was retired and them going to collect it, it got thrown into a skip - >so there's some damage to the case and the red display cover needs >replacing. Luckily the electronics survived, apart from one broken >switch. > >Curious thing about the machine is that it has a second board mounted >under the main board, containing quite a bit of circuitry. I was >wondering whether this second board is something custom produced by >Xerox (there are no marks indicating manufacturer) or whether it was an >official off-the-shelf expansion board... > >Quick and dirty pics at: > >http://www.moosenet.demon.co.uk/temp/comps/aim65/ > >Wish I'd brought the machine home now, but I can get a list of the main >ICs on that second board when I'm next at the musuem if needs be. > >Note that there seems to be no RAM on the AIM65 board itself, - just ROM >- but there are 16 4116 chips on the expansion board. >

21 years, 3 months

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geek OS

by vp＠cs.drexel.edu

"Zane H. Healy" <healyzh(a)aracnet.com> wrote: > Sorry, I want to run either MWM (talk about sick and twisted), [...] Wow, I thought I was the only one running mwm! I have one of the original source distributions and have been carrying it with me all these years. Now it is running on a dual screen machine under OpenBSD 3.4. Although it was considered slow and bloated when it came out (14+ years ago), nowadays the same code is considered fast and slim (times change). BTW this is what I really really really like about source distributions, you do not depend on the vendor to port the software. **vp

21 years, 3 months

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Lots of S-100 card docs avail/wanted

by dave04a＠dunfield.com

>> Took in a big load of S-100 material this past weekend, including >> 5 complete systems (Altair 8800, Vector-1+, 3 homebuilts), and a >> total of 76 S-100 cards, with about 40 different types. > >Holy crap! Nice haul! Thanks - it was a big load - took me about two hours to pack *most* of it into my Jeep Cherokee (with the rear seat folded down) - ended up leaving a few bits and pieces to pickup later this summer (was located about 700km >from me). It was one of those "everything went right" experiences - The Altair is *mint* - not a mark on the panel or any worn lettering ... My initial disappointment because it didn't have the silver nameplate (my other one doesn't either) was quickly put aside when he hauled out the nameplate, still with it's "pink" protective covering on it. In addition to the Mits cards listed, it came with the original Mits 4K BASIC and 8K BASIC cassettes, as well as all of the documentation - and a completely unexpected suprise was when I noticed the January 1975 Popular Electronics "Altair" issue laying on top of it (I've been looking for it for a very long time). A very nice piece, along with the Vector which is also in excellent condition. >> ** Two of the S-100 homebuilts are actually complete TRS-80's >> implemented on S-100 cards - they run the TRS-80 ROMs unmodified >> (with disk system) and load/run TRS-80 software! > >Holy crap II! That is fucking cool! Pictures!!! I thought so too - Very unique S-100 systems - I will be getting them up and running, and will let you know how they work out. They are mostly homebuilt cards (except for memory). >I want pictures of those homebrew TRS-80 S-100 systems. That has to be >the coolest S-100 system ever (next to the Atari S-100 stuff I've got ;) I had hoped to update my site within the next week or two, however I expect it will get pushed off a little now, as some of the new material is worthy of waiting for - but the update will include photos of the two "TRS-80" S-100 systems - I'll post a note when I have made the update. Do you have photos of the Atari S-100 material posted? Regards, Dave -- dave04a (at) Dave Dunfield dunfield (dot) Firmware development services & tools: www.dunfield.com com Collector of vintage computing equipment: http://www.parse.com/~ddunfield/museum/index.html

21 years, 3 months

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WTD: uPD7210 datasheet

by philpem＠dsl.pipex.com

Hi, Does anyone have a complete copy of the NEC uPD7210 datasheet? I've just spent the past hour Google-ing for it and all I've found is a pair of "We'll give you this d/s if you pay $500" type sites, and a bunch of copies of the first page or so of the datasheet. Thanks. -- Phil. | Acorn Risc PC600 Mk3, SA202, 64MB, 6GB, philpem(a)philpem.me.uk | ViewFinder, 10BaseT Ethernet, 2-slice, http://www.philpem.me.uk/ | 48xCD, ARCINv6c IDE, SCSI Warning: Windows is broken. Watch out for glass fragments.

21 years, 3 months

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Importing binary files without removable storage nor non-bundled software (was: TKermitFTP

by dwight.elvey＠amd.com

Hi I use windows for tax programs and digital photos. Beyond that, I have no use for it. If these were available in some other form, I'd use that instead. Dwight >From: gordonjcp(a)gjcp.net > > >> My usual machine for internet access just croaked (bad checksum in >> NTVDM.EXE), so, I'm using a Chembook notebook that has several > >I'm *amazed* how many people on this list still struggle on with Windows. >I would have thought most people with the geeky proclivities that would >lead them into playing with old computers would all be running one of the >many free OSes. > >Gordon. > >

21 years, 3 months

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RTL Logic

by dwight.elvey＠amd.com

Hi 4000 series is good to around 15 volts someplace as I recall. I don't remember how low it goes but it seems like 2.5v someplace. It does run slower at lower voltages and even at 5 volts, it is really slow for logic. It really depends on the application. Dwight >From: "Scott Stevens" <chenmel(a)earthlink.net> ---snip--- > >Doesn't 4000-series CMOS logic operate pretty well at non-5 volt levels >if powered to such levels? I haven't used any in years, but all the >'building block' logic components are available, i.e. the 4049 and such. > A company I worked for made a muscle stim device out of a single 4000 >series 'hex converter' using feedback to make multivibrators, crude >comparators, drivers, etc. out of the gates. It wasn't powered at 5 >volts, the whole thing ran from a 9 volt battery. The logic thresholds >for 4000 CMOS are 1/3 and 2/3 of VCC, for whatever VCC you supply, if I >recall. > >

21 years, 3 months

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hardware fault on SGI Indigo?

by fabtagon＠gmx.de

Hello, indeed it's been a faulty drive. Now the machine works pretty fine. Thanks to everybody, especially to Scott Quinn for pointing me to the diagnostic program IDE. Fabian

21 years, 3 months

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RTL Logic

by melamy＠earthlink.net

the 100ua only applies to the 74L family and it only represents the high logic level current that it will supply into other logic inputs. One of the key design specs for TTL was the input current to guarantee a specific logic level. For normal TTL, TI specs call for -1.6ma for a logic low and 40ua for a logic high (these are input currents). In other words, ten standard TTL loads for both low and high logic levels. Ten was the usual output capability of TTL outputs. Short circuit current is spec'd too and at a minimum, is 18ma for a TTL output that is high. You can find the standard logic currents on page 1076 of the 2nd edition on bitsavers and the short circuit current on the same page. Of note, the 18ma was only the minimum short circuit current, TI spec's 55ma for the maximum. It also states that you should not short more than one output at a time. Frankly, as I said before, shorting anything for any amount of time is a great way to create noise transients. I have tried to never recall anything from memory anymore on this list because there is always someone who disagrees... best regards, Steve Thatcher -----Original Message----- From: "Dwight K. Elvey" <dwight.elvey(a)amd.com> Sent: Jan 10, 2005 3:46 PM To: cctalk(a)classiccmp.org Subject: Re: RTL Logic Hi The 16ma is for sink of the NPN to ground. The pullup is limited to around 100ua as I recall. Dwight >From: "Steve Thatcher" <melamy(a)earthlink.net> > >well, I design by specifications. The TI specs say that the short circuit current for 74xx series is 18ma which is also not within specs for the general output current capability of 16 ma. Transient shorts like this are a great way to generate power supply noise. I guess I never applied any type of "preliminary hackery" to systems I have developed. > >-----Original Message----- >From: der Mouse <mouse(a)rodents.montreal.qc.ca> >Sent: Jan 9, 2005 5:15 AM >To: cctalk(a)classiccmp.org >Subject: Re: RTL Logic > >Except that totem-pole outputs usually have just a transistor to >ground, but a transistor and resistor to Vcc. This means that the one >driving the signal low will win, and, provided not too many outputs are >wired together, it will sink the current without damage. (I've >actually built circuits that depended on this, though I've never liked >it and never considered it suitable for more than preliminary hackery. >I've also always never done it for anything where the conflict will >last more than nanoseconds, as when building an ~R/~S flip-flop out of >two cross-coupled inverters rather than the more usual NANDs or NORs.) > >

21 years, 3 months

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HP 9000 220 (9920) on eBay

by john_a_s2004＠hotmail.com

Hi, Spotted this early 80s computer, hope it finds a good home: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=5155793160 Seller also has an old 9872A plotter. Regards, John

21 years, 3 months

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uPD7210 datasheet

by GOOI＠oce.nl

Ok, sorry I can't help. Then the graphics chip was the NEC7220. - Henk. > -----Original Message----- > From: cctalk-bounces(a)classiccmp.org > [mailto:cctalk-bounces@classiccmp.org]On Behalf Of Philip Pemberton > Sent: dinsdag 11 januari 2005 11:49 > To: cctalk(a)classiccmp.org > Subject: RE: uPD7210 datasheet > > > In message <3C9C07E832765C4F92E96B06BDC0747A011134D0(a)gd-mail03.oce.nl> > Gooijen H <GOOI(a)oce.nl> wrote: > > > it's been a long time, but I vagely remember the 7210 as > the graphics > > processor from NEC. > > Nope - the 7210 was NEC's IEEE-488/HPIB/GPIB controller chip. > I've got a CEC > PCI-488 GPIB card that uses it and the "Advanced Programming" > section of the > manual makes a lot of references to the 7210 datasheet... > > What I want to do is make the CEC card act like a GPIB device > that's been set > to "Always Listen" mode so I can take copies of the screen on > my HP 1651B > logic analyser. It shouldn't be too hard to write a bit of > code to convert > the Laserjet control codes into a bitmap image... > > Later. > -- > Phil. | Acorn Risc PC600 Mk3, > SA202, 64MB, 6GB, > philpem(a)philpem.me.uk | ViewFinder, 10BaseT > Ethernet, 2-slice, > http://www.philpem.me.uk/ | 48xCD, ARCINv6c IDE, SCSI > ... Eagles Soar!, but weasels aren't sucked into jets! >

21 years, 3 months

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uPD7210 datasheet

by GOOI＠oce.nl

Hi Philip, it's been a long time, but I vagely remember the 7210 as the graphics processor from NEC. AFAIR it was used in the HX-10 or something like that (a small "laptop" thingie). If the 7210 is indeed that graphics processor chip, I can help. Possibly that graphics chip has a number that resembles 7210. I that case I'm of no help - sri - Henk, PA8PDP. > -----Original Message----- > From: cctalk-bounces(a)classiccmp.org > [mailto:cctalk-bounces@classiccmp.org]On Behalf Of Philip Pemberton > Sent: dinsdag 11 januari 2005 11:10 > To: cctalk(a)classiccmp.org > Subject: WTD: uPD7210 datasheet > > > Hi, > Does anyone have a complete copy of the NEC uPD7210 > datasheet? I've just > spent the past hour Google-ing for it and all I've found is a > pair of "We'll > give you this d/s if you pay $500" type sites, and a bunch of > copies of the > first page or so of the datasheet. > > Thanks. > -- > Phil. | Acorn Risc PC600 Mk3, > SA202, 64MB, 6GB, > philpem(a)philpem.me.uk | ViewFinder, 10BaseT > Ethernet, 2-slice, > http://www.philpem.me.uk/ | 48xCD, ARCINv6c IDE, SCSI > Warning: Windows is broken. Watch out for glass fragments.

21 years, 3 months

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RTL Logic

by dwight.elvey＠amd.com

Hi The 16ma is for sink of the NPN to ground. The pullup is limited to around 100ua as I recall. Dwight >From: "Steve Thatcher" <melamy(a)earthlink.net> > >well, I design by specifications. The TI specs say that the short circuit current for 74xx series is 18ma which is also not within specs for the general output current capability of 16 ma. Transient shorts like this are a great way to generate power supply noise. I guess I never applied any type of "preliminary hackery" to systems I have developed. > >-----Original Message----- >From: der Mouse <mouse(a)rodents.montreal.qc.ca> >Sent: Jan 9, 2005 5:15 AM >To: cctalk(a)classiccmp.org >Subject: Re: RTL Logic > >Except that totem-pole outputs usually have just a transistor to >ground, but a transistor and resistor to Vcc. This means that the one >driving the signal low will win, and, provided not too many outputs are >wired together, it will sink the current without damage. (I've >actually built circuits that depended on this, though I've never liked >it and never considered it suitable for more than preliminary hackery. >I've also always never done it for anything where the conflict will >last more than nanoseconds, as when building an ~R/~S flip-flop out of >two cross-coupled inverters rather than the more usual NANDs or NORs.) > >

21 years, 3 months

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geek OS

by SUPRDAVE＠aol.com

People have made mention of ubuntu in this thread. My boss tried it out and like it a lot so he created a bootable cd for me and I tried it out on a computer I built from leftover parts. I used a crappy PC chips system board with onboard video and sound and put a 3com etherlink III NIC in the only slot and added a PII 400 and 512M RAM. I booted up the CD and it set up the blank hard drive and everything else with little intervention. It picked up the video card and the NIC and connected to my broadband connection. After a few hardware problems, it's up and running with mozilla. There's a package manager which can be used to bring down all the updates for installation. I expected to have to do some user configuration but it was essentially hands off! Runs pretty good and still plenty of space left on the hard drive. The sound does not work, but I expected that since I don't know what sound chipset the system board has. anyone curious about linux should check it out. also www.ubuntuforums.org

21 years, 3 months

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Lots of S-100 card docs avail/wanted

by dave04a＠dunfield.com

Took in a big load of S-100 material this past weekend, including 5 complete systems (Altair 8800, Vector-1+, 3 homebuilts), and a total of 76 S-100 cards, with about 40 different types. I believe I have documentation for them all, which I would like to eventually make available in electronic form. As there is really no need for multiple people to scan documentation, I propose the following: - If you have already scanned documents for any of these cards, or otherwise have "electric" form, please let me know. - If you are looking for documenation on any of these cards, please let me know and I will move the ones requested up my priority list. A=AndiCom B=oBjective designs C=eleCtronic systems D=Drc E=Ems G=GodBout H=HomeBuilt I=Ithaca Audio L=simpLiway M=Mits N=Northstar O=newtrOnics P=Processor-tech. R=m.t.wRite S=Solid State music T=Tanner Computers V=Vector Graphic W=WMC Mfg Model Description ------------------------------- A AM1000 64k RAM B VDI Video Display B Programmable Character Generator C S-100 Active Terminator D S-100 Sound Effects D 32k RAM E VC8024 Single Board Computer (CPU/ROM/RAM/VID/KBD) G EconoRam II 8k RAM G EconoRam IV RAM G 106C Active Terminator G 106E Active Terminator H 1793 Disk Controller H TRS-80 Eprom Card H ? (full of sockets) I IA-1100 Video L Video/Keyboard M CPU BD REV.0 8080 CPU Board * M 88-1 SIO Serial I/O * M 88-SIOB Serial I/O with Modem/Cassette daughter card M 4K RAM BD M 4K Synchronous RAM BD N MDC-A4 Single-Density Disk Ctrlr * N MDS-AD Double-Density Disk Ctrlr * O 64K S-100 memory P VDM-1 64x16 Video P CUTS (revB) Cassette/Tape Interface P 3P+S I/O (rev2) Parallel/Serial I/O P GPM EPROM P 16KRA 16k RAM R I/O - proto S CB1 8080 CPU S CB1A 8080 CPU S CB2 Z80 CPU S IO-4 Serial/Parallel I/O S PB1 EPROM Programmer S VBTC Video T 32K EPROM II 32K memory (RAM populated) V 8080 CPU W MEM-3 32k RAM (2114) * = I already have these scanned from my other S-100 projects. Guy was also really into TRS-80's - I received two Model IIIs and a Model IV-D - also with tons of documenation and technical material - if anyone is interested in this documentation, contact me and I will forward an inventory when it becomes available. ** Two of the S-100 homebuilts are actually complete TRS-80's implemented on S-100 cards - they run the TRS-80 ROMs unmodified (with disk system) and load/run TRS-80 software! A few other interesting odds and ends as well, such as a SWTP C-64 terminal and docs, Full collection of Micro-80 magazine, and much more - this will all eventually get listed on the web site, so check in in a few months (years?) in case there is anything of interest. Regards, Dave -- dave04a (at) Dave Dunfield dunfield (dot) Firmware development services & tools: www.dunfield.com com Collector of vintage computing equipment: http://www.parse.com/~ddunfield/museum/index.html

21 years, 3 months

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have an extra UDA-50 board set?

by brad＠heeltoe.com

Patrick Finnegan wrote: > >I've got an RA81 that has bad electronics, so it may (or may not) have a >good HDA still. If you want it, we could probably arrange something. Ah. Well, I have an RA81 with good electronics and no HDA :-) Give me a day or so to see what Jay comes up with. thanks! -brad

21 years, 3 months

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Data General boards

by ICS＠Core.com

Hi, I just found your message on the list from April 2004. Do you still have the Data General boards, if so I would be interested in obtaining them. Let me know. Thanks, George Wiegand

21 years, 3 months

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