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

Mark 8 / Apple I kits

by aek＠bitsavers.org

FYI obtronix has listed several sets of these kits on eBay 120546035352 120546028173

16 years, 3 months

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Finding datasheets on the net (was Disc analyser news update)

by tshoppa＠wmata.com

Dave wrote: >On Mar 19, 2010, at 8:44 PM, Ben wrote: >>> And now, I can get datasheets for pretty much any random component in >>> seconds, rather than having to wait for weeks to find a copy of a >>> databook that I don't have. I have nearly three thousand PDF >>> datasheets >>> now, and those are just for parts that I've been interested in for >>> one >>> reason or another. (curiosity, repair, use in new design, found a >>> chip >>> somewhere and wanted to know what it is, etc) I have about 35-40 >>> databooks, and now I have FAR more useful information available to me >>> then when I used to use those databooks regularly. >>> >>> Not all change is automatically bad. >> >> 3 am I want to check a datasheet ... it is 30 seconds including the >> time >> I take to turn on the light switch. >> I need to use windows and the internet it is about 20 minutes later >> I may have the information. > That's because you use Windows. I get it in seconds. Every time. A couple random thoughts: Google goes through phases where searching for a random TTL or CMOS or old microprocessor or transistor part number returns 95%+ sponsored spam links to places that don't have the part but want to sell you the part anyway. At other points Google is working "nicely" and the top couple hits are to the actual datasheet. If the part is a "basic part" that is still available in some commercial form or another I find that going to Mouser or Digikey is often more effective today than going through Google. And I say that being a big Google user. Mouser and Digikey tend to keep parts in their search engines with links to datasheets for maybe a decade or two after they leave special order. And it's useful to know that yes, the CA3146 is being discontinued. Or that the CD4007 is actually the same as the CA3600 :-). Lots of Windows installations have a zillion spyware things running that interfere greatly with downloading the PDF after you find it. Sometimes these things make you believe that they're actually toolbars, but they aren't. Usually the download accelerators fall in this category too... launching 50 simultaneous download sessions to fetch a 3 page datasheet is usually a big loss. I know that I'm being OS-ist when I talk about Windows like that, but really it's the unknowing users getting sucked into thinking "another toolbar? Hey, I want that!" and "another download accelerator? Hey, I want that!" that are at fault. When you see a web browser and literally 75% of the screen is taken up by toolbars and download accelerators that really are actually all spyware, something is seriously out of whack, but I'd estimate that probably 90% of Windows PC's that are not vigilantly patrolled end up that way. Tim.

16 years, 3 months

5
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Datasheets and modern display technology

by shoppa＠trailing-edge.com

I appreciate the old databooks very much... but with bound books keeping them open on the bench to the page you want was always a problem. Anything without a good binding fell apart 30 years ago. Even the ones that are well bound (e.g. the hardback TTL books from TI) don't last forever although they were printed by the millions and are still readily found. What I actually like, is having a big 23" or bigger screen at the bench with web access to the datasheets. That's pretty decent. I can zoom the pinout big enough that I can read it from the other side of the bench, or I can open the pinout and the state table simultaneously in two windows. Pretty good, at least as long as I have my glasses on. But the screen still isn't as good as having the datasheet right there on the bench (flat on the bench) a foot or less away from the circuit. I wonder how a Kindle will do on the bench? Anyone drop their soldering iron on a screen yet? The good pages in the databooks always had solder or food or both on them, that made the good pages easier to find! And don't bother lecturing me about not having food and solder in the same place. We all grew up with solder when we were kids, and everyone knows that WE'RE PERFECTLY NORMAL now that we're adults! Tim.

16 years, 3 months

6
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HP 7937H CS/80 drive free for parts

by js＠cimmeri.com

Folks, I've a 7937H that turns on and passes diag fine, but as soon as I try to access it, I get a servo error. I suspect the HDA assembly but have no spares to swap to confirm. The entire drive is free for pickup from Rockville, MD. If you want small parts shipped, there will be a charge for shipping and handling... Email me if interested. This notice will be in effect for 1 week >from date of posting. After that, please disregard.. Thank you, John Singleton jsk at cimmerik.com (remove all the k's)

16 years, 3 months

1
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great abandonware for your classic PC

by rdawson16＠hotmail.com

You guys may already know of this, some perhaps not. All the OS's are there, MSDOS, Concurent CPM, Windows 1 thru 3 Autocad, Orcad, Mathematica, Maple, Matlab Graphics like Dr. Halo Programming languages MASM, Turbo Pascal http://vetusware.com Randy _________________________________________________________________ Hotmail is redefining busy with tools for the New Busy. Get more from your inbox. http://www.windowslive.com/campaign/thenewbusy?ocid=PID27925::T:WLMTAGL:ON:…

16 years, 3 months

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Finding datasheets on the net (was Disc analyser news update)

by shoppa＠trailing-edge.com

Dave wrote: >Ben wrote: >> And if you are lucky the fifth or sixth hit is a *free* pdf. > I've never seen one that required payment, but I've seen plenty of > places that SUPPOSEDLY have the PDF you're looking for, but actually > don't. Most commonly, I find places that try to sell me parts that haven't been made for 30 or 40 years, but the page is simply a numeric list of every part in some huge number range. How can it be a viable business model to buy google advertising to sell parts that you do not actually have? My guess: counterfeits, esp relabeled counterfeits. Or maybe the advertising cost is so completely negligible that they can afford to put up ads for things they don't have? I remember "too cheap to meter" but that's ridiculous. Tim.

16 years, 3 months

1
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Does a Northstar S-100 Bus Horizon Classify as a Classic

by trebor77＠execpc.com

1. Re: Does a Northstar S-100 Bus Horizon Classify as a Classic > Message: 1 > Date: Fri, 19 Mar 2010 13:05:18 -0400 > From: Dave McGuire <mcguire at neurotica.com> > Subject: Re: Does a Northstar S-100 Bus Horizon Classify as a Classic > To: "General Discussion: On-Topic and Off-Topic Posts" > <cctalk at classiccmp.org> > Message-ID: <2C8AA3F6-864D-4777-A584-466024E6A276 at neurotica.com> > Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed > On Mar 19, 2010, at 1:12 PM, Robert J. Stevens wrote: > >> I have a set of the Steve Ciarcia Circuit Cellar Magazines if >> Anyone is Interested >> Volume I originally cost $8.00 >> Volume II originally cost $12.95 >> Volume III originally cost $16.95 >> Volume IV originally cost $18.95 >> WOW >> Wow indeed. >> Are these in fact "Circuit Cellar Ink" magazines, or are they the >> compendium of Ciarcia's Circuit Cellar columns from BYTE magazine? I was not aware that there were Different Publications of his Work. These are indeed compendiums from BYTE. I guess I should have called them Books. But the are in Pristine Condition Looks like they have never been opened MUCH Bob

16 years, 3 months

2
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Just another homebuilt TTL machine

by jdr_use＠bluewin.ch

I have put online some pictures and schematics of a rather pathetic homebuilt TTL machine I constructed around 1985 Specs 12 bit wide, 8K ram, 256 word hardware stack. CPU 3 x 74181 Hardcoded instruction set. No blinkenlights, but, almost as good, 4 nixies as display. Since I just cannot be bothered to make a proper homepage, I have just put everyting on my FTP server. Find the goodies here : ftp://jdreesen.dyndns.org/ftp/T3 Jos Dreesen

16 years, 3 months

3
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Disc analyser news update

by julianskidmore＠yahoo.com

Hi folks, > melamy at earthlink.net wrote: > > if you want specs to programming microchip ics, go here... > > > > http://www.microchip.com/stellent/idcplgIdcService=SS_GET_PAGE&nodeId=1407 > I was under the impression that the FLASH specifications didn't cover > the ICD hardware, but there you go... > But they're handy anyway. I've got a Maplin PIC programmer kicking > around somewhere -- the original software only programmed the 16C84 Despite the horrors of programming PICs; they do have at least one redeeming feature here - they're genuine classic architectures, being designed in the mid-70s for General Instruments ;-) http://en.wikipedia.org/wiki/PIC_microcontroller#History -cheers from julz @P

16 years, 3 months

2
1
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home brew S-100 PCB manufacturing order

by lynchaj＠yahoo.com

Hi! I am getting ready to make another manufactured PCB order for some S-100 PCBs. These are the S100Computers.com and/or N8VEM boards. These are the S-100 regular prototyping board, S-100 backplane, S-100 buffered prototyping board, S-100 IDE, and S-100 ASCII keyboard. If you are interested in getting in on the S-100 board order please contact me. Thanks and have a nice day! Andrew Lynch

16 years, 3 months

1
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Old DEC Power Control 861C

by icipasla＠gmail.com

*Many thanks, I found a leaking capacitor just as you have described. I've ordered new ones and will soon be able to replace it. I'll let you know if that fixes the problem (It should!).** Normand *>* Old DEC Power Control 861C Hi, *>* *>* looks like I am not getting the posting in my e-mail but my messages do get *>* posted. * This issue came up a few months back. Apparently gmail filters the replies to your own messages somewhere (and not to somewhere sensible!). Perhaps somebody else can rememebr the details. >* *>* I found this replyto my previous message by Tony Duell *>* <cctalk%40classiccmp.org?Subject=Re%3A%20Old%20DEC%20Power%20Control%20861C&In-Reply-To=%3Cm1NM4jS-000J3uC%40p850ug1%3E>in *>* the archives. *>* *>* To follow-up, the 861C emits a crackling noise for the first few seconds (20 *>* or so) and then I can hear a relay chattering (very noisy!). *>* *>* Also the light on the front panel is flashing continuously (maybe that's *>* normal.) * old DEC neons tend to flicker randomly (and it's truely random). The basic design is for the mains : Mains in--->filter --->Breaker-+--->Unswitched outs | +--->Contactor (big relay)-> Switched outs The contactor is controlled (in the 861) by a reed relay on the little PCB inside. This has a differentially-wound coil to give the 'ground for on' and 'ground for off' functionality on the 3 pin connector. The reed relay coil is powered by a little transformer/rectifier/capacitor circuit, mostly on the PCB. My first suspicioun is that capacitor. Open it up and look for any electrolytics on the PCB inside. -tony

16 years, 3 months

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Disc analyser news update

by melamy＠earthlink.net

go here then... http://ww1.microchip.com/downloads/en/DeviceDoc/51242a.pdf that will at least give you debugging information that Microchip released. Steve "some chap" Thatcher -----Original Message----- >From: Tony Duell <ard at p850ug1.demon.co.uk> >Sent: Mar 19, 2010 2:44 PM >To: cctalk at classiccmp.org >Subject: Re: Disc analyser news update > >> >> On Thursday (03/18/2010 at 12:06AM +0000), Philip Pemberton wrote: >> > >> > You know, there is a reason Microchip released the ICD2, ICD3 and >> > PICKit2 Debug Express. All of the three support in-circuit debugging >> > over the programming pins -- set a code breakpoint (or watchpoint), wait >> > for it to trigger, then dump the program state. >> >> And do those debugger tools run on any OS other than Windows? > >Not that I could see. And the specs that I was pointed to by some chap >here give details on programming the PICs, but nothing on the debugger >commands, so it appers you can't write your own debugging tools. > >> >> > Beats the LEDs-and-switches debugging method, or the "hook a terminal >> > up" trick... >> >> If the answer to the above is No, then it does not beat the "hook a >> terminal up" trick... or an LED trick or plenty of other tricks... >> not by a long shot. > >Exactly. > >-tony

16 years, 3 months

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Does a Northstar S-100 Bus Horizon Classify as a Classic

by trebor77＠execpc.com

I have a S-100 N* Horizon that I have been trying to get to run for years. Is there anyone out there running one or have one or Interested in one. I also have a bunch of S-100 Vector Graphic Cards, CPU, Memory, I/O Cards but no FDC's I am looking for any S-100 Serial I/O cards that I might be able to just in a Test Computer setup so I can test some of the Cards I have. Also Floppy disk controllers for the S-100 Buss. TIA Bob in Wisconsin

16 years, 3 months

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Monroe calculating Machine

by harrychandler1＠mac.com

Do you still have the Monroe 8 N ? Harry Chandler Monroe Service Manager.

16 years, 3 months

1
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Caffeine and hacking (was Re: Soldering)

by ethan.dicks＠gmail.com

On Thu, Mar 11, 2010 at 2:02 PM, Sridhar Ayengar <ploopster at gmail.com> wrote: > Chuck Guzis wrote: >> >> When Fry's... Jolt cola... bizarre chocolate-flavored diet soda (Canfields)... > > I swear by Bawls, and write a wide variety of languages on a daily basis. Bawls is good, but at my local store, I've run into a variant I like more - "Antarctica" Guarana soda from Brazil. It's stocked in the International aisles at the grocery closest to my own house (a Giant Eagle) and the store closest to a friend's house in Cleveland - so it's not just us. It tastes a bit like Bawls (vs tasting like a cola or lemon/lime drink), but I think it's smoother and less sour. It's around $3.something for a 2L, so not particularly inexpensive, but a nice treat. <http://en.wikipedia.org/wiki/Guaran%C3%A1_Antarctica> I have yet to throw it into the rotation for a serious hacking session, but with a day job sucking up evening hours, too, it's been a while since I've been able to get my head into that mode for extended periods of time. Summer is looking good (since I am consulting in the educational world right now). -ethan

16 years, 3 months

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Disc analyser news update

by melamy＠earthlink.net

if you want specs to programming microchip ics, go here... http://www.microchip.com/stellent/idcplg?IdcService=SS_GET_PAGE&nodeId=1407 best regards, Steve Thatcher -----Original Message----- >From: Tony Duell <ard at p850ug1.demon.co.uk> >Sent: Mar 18, 2010 3:36 PM >To: cctalk at classiccmp.org >Subject: Re: Disc analyser news update > >> You know, there is a reason Microchip released the ICD2, ICD3 and >> PICKit2 Debug Express. All of the three support in-circuit debugging > >How 'open#' is this internface/specification. Is there enough detail >availble for me to write the host program for a machine/OS of my choice >(becuase I will bet the one Microchip supply doesn't run on the machine I >would want to run it on, or indeed on anythign I own) > >-tony >

16 years, 3 months

2
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Computer Machinery Corporation?

by genedico＠tampabay.rr.com

I just came across your question about CMC. My personal knowledge is that it was a competitor of my company in 1968 when it came out with a minicomputer-based system with multiple keyboards to replace IBM keypunch machines. Two of its competitors were Inforex and Honeywell. Another competitor at the time was Viatron but that company didn't last long.

16 years, 3 months

1
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great abandonware for your classic PC

by feldman.r＠comcast.net

>Message: 15 >Date: Wed, 17 Mar 2010 15:09:37 -0400 >From: Keith < keithvz at verizon.net > >Subject: Re: great abandonware for your classic PC <snip> >And even if there were some type of agreements, I think the "First Sale" >??Doctrine would have to kick in here somewhere. > >Even Microsoft lost(ok, gave up) their copyright suit when a college kid >??sold his Windows OS disk on ebay. > >Keith Also,? in October of 2009, Autodesk lost its suit against a man who bought a copy of AutoCAD at a garage sale and then tried to sell it on eBay: "US court says software is owned, not licensed" http://www.channelregister.co.uk/2009/10/06/software_ownership_ruling/

16 years, 3 months

1
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AWG 30 stripping tools

by glen.slick＠gmail.com

So speaking of AWG 30, what is the best tool for stripping it for wirewrap purposes? Is something like an OK ST-500 a decent tool for around $33? http://media.digikey.com/photos/OK%20Industries%20-%20Jonard%20Photos/ST-50…

16 years, 4 months

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The Hard Disk That Changed the World - IBM 305 RAMAC

by tshoppa＠wmata.com

Jos asks: >William Blair wrote: >> 5 MB (approx.) for only $3,200/month ($24,978 in 2009 dollars)! >> > I wonder what use case would justify that kind of expense, or would tape > storage not have been that much cheaper ? Undoubtedly tape is cheaper (not just per byte but also per drive) but it's not random access. Clever things were done with tapes, usually in batch mode. The RAMAC made it possible to think that multiple files (not in the computer sense but in the business sense) could be updated simultaneously in real-time. It is a fallacy to confuse the cost of a storage unit with the value that The data on it provides. Clearly as the cost of storage has dropped new applications that previously weren't economically feasible open up. e.g. When I got started in digital music in the 80's, the most technically advanced mixing systems began using hard drives instead of tape for digital music storage and manipulation. Tim.

16 years, 4 months

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Origin of RT-11 emulation on RSTS

by dundas＠caltech.edu

I've wondered this for a long time and maybe someone here can shed some light. Back in 1975-76 I was using the PDP-11 and Oregon Museum of Science and Industry (OMSI) and they had a thing called "OMSI RT" on their system. It was an RT-11 run time system (RTS) under RSTS. They were selling V1A for $2350 a copy (I still have a copy of the on-line help file giving the information). The product ran the Fortran compiler, MACRO, Pascal, etc., as the later RT-11 environment from DEC did. OMSI RT claimed compatibility with RT-11 V2 and also required a DEC binary license for both RSTS (V5B or later) and RT (V2) My question is: did DEC buy this from OMSI to (improve?) and include in RSTS or was the DEC RT-11 environment created some other way (either developed in-house or purchased from someone else)? Does anyone know the origins of the RT-11 emulation under RSTS? Thanks, John

16 years, 4 months

1
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The Hard Disk That Changed the World - IBM 305 RAMAC

by wbblair3＠yahoo.com

Nice IBM sales video and stills: http://gizmodo.com/5494858/ibm-305-ramac-the-grandaddy-of-modern-hard-drives 2006 (50th anniversary) article: http://www.newsweek.com/id/46300 IBM's info: http://www-03.ibm.com/ibm/history/exhibits/storage/storage_350.html 5 MB (approx.) for only $3,200/month ($24,978 in 2009 dollars)! "Disks rotated at 1,200 rpm, tracks (20 to the inch) were recorded at up to 100 bits per inch, and typical head-to-disk spacing was 800 microinches. The execution of a "seek" instruction positioned a read-write head to the track that contained the desired sector and selected the sector for a later read or write operation. Seek time averaged about 600 milliseconds."

16 years, 4 months

7
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Booting a VAXstation

by lproven＠gmail.com

I have a VAXstation 3100 model 38 I bought on eBay for the princely sum of ?0.99. Sadly it came without disks and I have no wide-SCSI disks of <1GB. But I want to get it working & looking at the old dead kit pile. As far as I know you can't boot a traditional VAX from a disk of <1GB... but could I put the core of VMS on a small slow narrow SCSI disk, like an 80MB or something, and put most of it on the only Wide SCSI disk I have, a 10GB...? I was considering either attaching an external SCSI2 disk of 80-120GB, or possibly trying to fit one internally if I can find an appropriate convertor. I have a fast/wide 8GB or 10GB disk I could use for main storage, but I don't think I can boot from it... Can I? My VMS knowledge is /very/ rusty & I was only ever a sysadmin, not a developer. I've never brought up a bare system or anything. Also, I have several external SCSI CD-ROMs, including 2 Apple units. I seem to recall that VAXen want a weird block size, same as Sun kit... is that correct? How would one tell if a certain drive could do this or not? Is it a DIP switch setting or just a SCSI bus command? -- Liam Proven ? Profile: http://www.linkedin.com/in/liamproven Email: lproven at cix.co.uk ? GMail/GoogleTalk/Orkut: lproven at gmail.com Tel: +44 20-8685-0498 ? Cell: +44 7939-087884 ? Fax: + 44 870-9151419 AOL/AIM/iChat/Yahoo/Skype: liamproven ? LiveJournal/Twitter: lproven MSN: lproven at hotmail.com ? ICQ: 73187508

16 years, 4 months

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Flyback for Monochrome Plato Student Terminal.

by woolfson＠telswitch.com

Hi. First time poster. I have a bad flyback transformer on a video board that I've been unable to locate. I've also been unable to find any information about this transformer, or the board that it's on. I have lots of information about what the board is inside of, but nothing on the board itself. It's for a green monochrome Plato Display Terminal, called an AST-1 Student Terminal; even the original designer of the equipment, Jack Stifle at the University of Illinois, does not have any information any more on the video driver board itself. note: The AST-1 Student terminal was supposed to be a lightweight inexpensive replacement for the original Plato IV and Plato V terminals, and was manufactured by the University of Illinois I've been able to find many defails from University of Illinois archives, including all schematics except for the video driver board. The transformer is marked as : VT-521, EIA-528-8521, type sb-1, E36324 I assume EIA 528 means Electronic Industry Association manufacturer 528, with the product (or factory ID) and that's an internal number. The only "cross-reference" is to a SUN microsystems display, but I have ordered that flyback and have found it to be the wrong one... Here are the links to the photos that I've taken of the board: http://customer.telswitch.com/plato/ast001.JPG http://customer.telswitch.com/plato/ast002.JPG The first photo is of the "markings" that the manufacturer must have put on, the second photo is of the actual board itself. The tube that it uses is a Clinton CE745w12h31vrz (which is a standard 745-style tube). Thoughts? Thanks! Aaron

16 years, 4 months

5
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Early apple employees Dick and Cliff Huston selling off collection

by jlobocki＠gmail.com

Ok, Im gonna go get some powerball tickets and cross my fingers! I like the two newton prototypes that look like an early attempt at creating an iPad, this stuff should be in a real museum, not up for sale in my opinion. It would be interesting for a piece on how some creations are created in prototype some 10-20 years before their time. Another good example, look at how long SGI has put stereographic 3D glasses ports on their computers, and have had the capabilities, but now it is finally hitting the consumer TV market. On Tue, Mar 16, 2010 at 11:37 PM, Zane H. Healy <healyzh at aracnet.com> wrote: > At 11:18 PM -0400 3/16/10, Dave McGuire wrote: > >> On Mar 17, 2010, at 12:04 AM, Zane H. Healy wrote: >> >>> I see a couple items there that I'd be interested in, but no way am I >>> spending that kind of money on anything like that! >>> >> >> I've never seen the general attitude of classiccmp summed up so >> succinctly. ;) >> > > There was a time when I would have considered bidding on at least one of > the items. Now I'm trying to do a massive shrink of my own collection, and > the money I used to spend on Classic Computers is now targeted for more > realistic things. > > The disturbing thing is, while I'm trying to get rid of most of my > collection I'm in the middle of my biggest (and best) Commodore haul ever. > It is free, and slowly being delivered from out of state. Oh, well, I said > I was keeping a lot of the Commodore stuff. :-) > > Zane > > > > -- > | Zane H. Healy | UNIX Systems Administrator | > | healyzh at aracnet.com | OpenVMS Enthusiast | > | | Classic Computer Collector | > +----------------------------------+----------------------------+ > | Empire of the Petal Throne and Traveller Role Playing, | > | PDP-10 Emulation and Zane's Computer Museum. | > | http://www.aracnet.com/~healyzh/<http://www.aracnet.com/%7Ehealyzh/> | >

16 years, 4 months

1
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Yamaha V9958?

by lynchaj＠yahoo.com

Thanks for the tip... figures I wouldn't try eBay for that. ;) I was actually wanting one as an upgrade for my Coleco ADAM. I had installed a TIM board with the 9938 in one back in the day, and wrote some initialization software for it. Was thinking about building my own board to do the same again. -----REPLY---- Hi! The Coleco ADAM is a Z80 computer right? If you are up to some experimenting the other related item at the N8VEM that might be interesting to you is the PropIO. Using a shim socket, the PropIO can be interfaced to the Z80 CPU socket. Then with proper software support it can provide PS/2 keyboard, VGA, and microSD for your computer. Assuming of course the ADAM design is compatible. Basically if the ADAM can access an IO port it should work fine but the best way to be sure is to check the schematic. One of the N8VEM builders has done some experimenting on a Kaypro and a SpectraVideo 728 with the Z80 shim socket to PropIO and it worked fine in both cases. It might be a neat expansion option for you if you are interested. I am looking for some hardware experimenters to test the system out on some various Z80 computers. I am not aware of anything like it for the ADAM but don't follow it too closely either. If you are interested (or anyone else) please let me know. Thanks and have a nice day! Andrew Lynch PS, the PropIO shim socket approach *should* work for any of the N8VEM expansion boards so if you are interested in expanding your Z80 computer or adding peripherals to your Z80 home brew computer this might be helpful to you since you won't need to reinvent it. It could add simple interfaces such as IDE/FDC (DiskIO) or Zilog Peripherals (CTC, DART, dual PIO) as well as the PropIO.

16 years, 4 months

1
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Booting a VAXstation

by js＠cimmeri.com

> Subject: > Booting a VAXstation > From: > Liam Proven <lproven at gmail.com> > Date: > Mon, 15 Mar 2010 18:20:19 +0000 > To: > "General Discussion: On-Topic Posts Only" <cctech at classiccmp.org> > > To: > "General Discussion: On-Topic Posts Only" <cctech at classiccmp.org> > > > I have a VAXstation 3100 model 38 I bought on eBay for the princely > sum of ?0.99. Sadly it came without disks and I have no wide-SCSI > disks of <1GB. Hi, Liam. First thing to do is find yourself a copy of the manual for the machine as you can do a bunch of stuff with it just from built in diagnostics.. I seem to recall them being out on the web.. possibly here: http://deathrow.vistech.net/~cvisors/DEC94MDS/ I know Antonio Carlini had a site with lots of nice docs too.. but my link is dead. Also check out older posts where people were in the same boat.. such as: http://www.classiccmp.org/pipermail/cctech/2004-December/036556.html My machine came with a TZ30 drive, an RD54 CD, and hard disk all internally... mine's the M48..same as yours but with bigger case. You might need a special cable for the external SCSI.. as its got a funny connector on the computer end. I found one on ebay. For hard drives, I found that I had to experiment with different ones.. not all would work (even if under 1gb). Most did, however. Enjoy, John Singleton

16 years, 4 months

4
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Yamaha V9958?

by lynchaj＠yahoo.com

> -----Original Message----- > From: cctalk-bounces at classiccmp.org > [mailto:cctalk-bounces at classiccmp.org] On Behalf Of geoffrey oltmans > Sent: Tuesday, March 16, 2010 10:50 AM > To: General Discussion: On-Topic and Off-Topic Posts > Subject: Yamaha V9958? > > Does anyone know where you can order one of these (AKA MSX-Video?). > Barring that, its earlier cousin the 9938 would be good also. [AJL>] Hi! On the N8VEM project we are getting ready to release a TMS9918/AY-3-8910 Sprite Color Graphic and Sound (SCGS) board. The board is basically done and awaiting the PCB trace route optimization to complete before ordering manufactured PCBs. There are also plans for a follow on V9938 board. V9958 has "issues" that make it less desirable than the V9938 IMO especially since it cannot generate composite video. It can generate RGB video though and has some enhanced scrolling ability. None of these chips can generate VGA compatible video though so be fore warned. http://n8vem-sbc.pbworks.com/browse/#view=ViewFolder&param=Color%2520Graphic s%2520and%2520Sound http://n8vem-sbc.pbworks.com/browse/#view=ViewFolder&param=SCGS As always, constructive comments welcome; send flames and pointless criticisms to /dev/null We've had some luck procuring the chips from leemoom611 on eBay. I've bought several chips now (TMS9918, TMS99118, V9938, V9958) without issue. Seems like a decent guy but I can't say much other than it worked for me. I have no business connections with him other than a satisfied customer. You are welcome to join us on the N8VEM project if you are interested in a TMS9918 or V9938/V9958 home brew computer project or whatever you'd like to do. Regardless, I wish you the best of luck with your project. Please keep us (me?) posted on your progress. Thanks and have a nice day! Andrew Lynch

16 years, 4 months

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Caffeine and hacking (was Re: Soldering)

by roger.holmes＠microspot.co.uk

On 16 Mar 2010, at 03:10, cctalk-request at classiccmp.org wrote: > > Message: 14 > Date: Mon, 15 Mar 2010 21:44:49 -0000 > From: "Andrew Burton" <aliensrcooluk at yahoo.co.uk> > Subject: Re: Caffeine and hacking (was Re: Soldering) > To: "General Discussion: On-Topic and Off-Topic Posts" > <cctalk at classiccmp.org> > Message-ID: <005201cac490$8be1db90$f0fdf93e at user8459cef6fa> > Content-Type: text/plain; charset="iso-8859-1" > > > ----- Original Message ----- > From: "Teo Zenios" <teoz at neo.rr.com> > To: "General Discussion: On-Topic and Off-Topic Posts" > <cctalk at classiccmp.org> > Sent: Thursday, March 11, 2010 10:25 PM > Subject: Re: Caffeine and hacking (was Re: Soldering) > > >> I gave up drinking cola with caffeine and now mostly drink 7-up with >> artificial sweeteners (you end up getting a sweet tooth late in the day). >> >> I used to guzzle mountain dew in the morning when I worked and I found if > I >> didn't my mind would be a little cloudy until I did so I gave it up. >> >> Yes, you do lose a bunch of weight when switching to diet pop, but you > gain >> it back slowly when you get a craving for sweets (you body doesn'y like to >> be fooled by fake sweetener). > > > You can say that again (the bit in brackets in the last sentence). If I > drink Diet Cola it makes me sick, as in regurgitating what I ate recently. > So I stay well away from diet drinks... but I have a few other allergies too > (hayfever, asthma, eczema and certain plastics cause irration to my skin > after contact for 5-10 minutes). I suppose I should count myself lucky that > I'm not allergic to sunlight. I'm very sorry to hear that. Two things you might like to consider. Is the Diet Coke in a plastic botttle, and if so is the plasticiser getting into the drink? Of course if you have the same reaction to it in a glass bottle then thats not it. Is it the Aspartame sweetener? Its nasty stuff, affects the pancreas, particularly for diabetics and some experts even think the 'diabetes epidemic' is caused by it. My 87 year old mother had type one diabetes (controlled with tablets). They told her to cut down her sugar intake, so I started to go through what I buy online every week and found lower sugar versions. Coke -> Diet Coke and Robinsons Orange -> No Added Sugar Robinsons Orange etc. Soon her daily sugar measurements were off the scale, the gauge only reads up to about 25 beyond that it just says high. The medics gradually increased her tablets, switched to injecting insulin, saying now it was type 2 diabetes, the dosage went up to 74 units per day. Then one of the 'carers' (who was not medically trained) told me some of her other clients had cut out Diet Coke and become much better. I was sceptical so asked one of the nurses and though she did not want to say so on the record she suggested I cut down my mothers consumption of Aspartame. I've been doing that though some things like orange squash all seem to have it in. Now the medics are gradually reducing her insulin and frequently have to give her chocolate in the morning to get her sugar level UP to four so that they can give her her insulin without causing her to have a fit when they administer it. Try googling Aspartame Diabetes for what one doctor says about it. On the original topic, when I programmed in microcode assembler then assembler and Coral66 then Pascal I drank Ribena : result all my molars have huge fillings which might cause a blip in the mercury price when they need to be replaced :-) Now I program in C++ and have switched to Rose's lime. Of course outside work its bitter ale, either Shepherd Neame Masterbrew or when I'm in London Courage Directors. I can see the site of the old Fremlin's brewery out of my office window, thats the beer from which the word gremlin derive's its name. When I'm finding logic faults on my ICT1301 mainframe its cloudy lemonade and McVities Digestives (plain ones, not chocolate ones) to make up for skipping lunch.

16 years, 4 months

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Old Equipment for sale, PDP8 and S100, with manuals

by 1metalguru＠gmail.com

Hi Guys: Just thought I would drop a line and let everyone know that I have some old computer equipment for sale (might even be free to a good home) as listed below: 1. PDP8A system, with programming front panel. Comes with PDP8/A Field Drawings Manual, and I believe it has an A/D peripheral. 2. Somewhere, (I haven't seen them for years) I have a pretty extensive library of PDP8/I manuals on Microfiche. This includes the 32K Disk Subsystem, Hi Speed Paper Tape reader, PDP8/I Math enhancement, Dectape System, etc. Used to have the paper copies, but they were too bulky so I paid to have them put on Microfiche (which was quite pricey as I recall). If anyone is interested, I'll try to come up with more info, including a complete list of the manuals on fiche, and a list of the boards installed in the 8/A. I also have some old modems, including one from an ASR33 TTY, and a 1200 Baud commercial modem from the early 80's. In addition, I have a couple of old S-100 System enclosures with backplanes and power supplies, along with a whole box of S-100 boards including 8085 CPU, memory, A/D, comm cards, and various I/O. Even some manuals to go with... My name is Darrell, and you can contact me at 1MetalGuru(at)gmail.com

16 years, 4 months

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Booting a VAXstation

by pcoghlan+cctech＠vms.eurokom.ie

> >But practically, what this means is: No Money. Ergo, I can't afford to >buy any new bits. The reason I got this machine was its extreme >cheapness! (Under a pound - for Colonial types, that's about a buck >sixty.) > With any luck it may be possible to scrounge an RZ26 for a similar price to the machine. > >Well, what size of disk would I want? I may have some 500MB units >knocking around, possibly bigger. The problem now is finding ones >/small/ enough, not big enough! > I've managed to crowbar a bootable subset of VMS 5.5-2 into 70MB. It was so long ago I don't remember if this included any Decwindows functionality. More recent versions with more fluff will probably need more. 500MB would certainly be worth a try though. Alternatively, use a disk larger than 1GB and hope for the best. You won't have lost anything if it doesn't work. When doing the install, just install the critical items first, with the hope of having everything that is accessed by the firmware ROMs for boot appear below the 1GB mark. Opt not to have a dumpfile. The biggest problem will probably making sure to get the index file (which is used to locate all the other files on the disk) below the 1GB mark. As far as I recall, VMS places the index file in the middle of the disk by default but this can be overridden when the disk is initialised. The only question is whether this option is available when doing an install from scratch. > >Is there any incantation I can type at the firmware monitor to tell me >if it "sees" a device as a CD-ROM? Or is being seen as a CD no >guarantee? > SHOW DEVICE at the >>> should list the devices on the SCSI bus. I don't think it will tell you if the sector size is correct though. The only way to be sure is to try it. As far as I know, CDs containing a bootable and usable version of VAX/VMS were not produced although they were for Alpha/VMS. A VAX would normally boot the standalone backup program from a CD to do a VMS installation rather than booting directly into VMS from the CD. > >I don't wish to question authority, as it were, but the internal >cables are 104 pin (If I'm counting them correctly) and the external >SCSI port on the back is 72-pin mini-D. That *looks* like wide SCSI to >me! If it's not, then what kind of cabling is it? The ordinary >narrow-SCSI stuff I knew from back in the '80s and '90s was 50-way >ribbon cables with 50-pin IDC connectors internally and either 50-pin >Centronics or D25 connectors externally. > The external SCSI connectors on a 3100 are rather strange. They are a narrow SCSI bus presented on a male 68pin connector. It is definately not wide SCSI even though it looks like it. To use it, the first thing you will need is a cable with a female 68pin connector on one end and a 50 pin centronics type connector (or something else reasonable) on the other. Are there connectors for internal SCSI disks? They should be normal 50pin IDC types. > >Yes, but how do I *tell*, that's the question! > I just picked up an IBM labelled CD drive off the floor. It has a jumper at the back labelled "SECTOR SIZE". It's a fair bet that the two sizes available are 512 and 2048. If you find a drive with a sector size jumper, it will probably do. > >When you say "a small-ish drive", what counts as "small" for VMS? Or >rather, what sort of drive should I be looking for to /not/ have to >muck around when installing it? > 1GB is more than adequate to install VAX/VMS. I remember 3100's used to often come with an RZ23 which I think was 109MB. This was generally regarded as too small to install a useful system on. I would have a go on anything bigger than 200MB. Not having to muck about probably involves spending a little to get an appropriate disk. On the other hand, having to muck about a bit may will give you the experience you are looking for. I'd suggest giving it a go with whatever you have. > >My hope is to get the machine booting into DECwindows. I don't plan to >use it as a server, more as sort of glorified X-terminal if anything. > Recent versions of Decwindows are disk and memory hogs, especially on VAX. It is likely that it will be very slow. It may be wiser to concentrate on terminal based access initially at least. Regards, Peter Coghlan.

16 years, 4 months

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VAX stuff

by jack.rubin＠ameritech.net

This stuff is too new and too big for me - located in Illinois (as per bid site). Note that Craters & Frieghters service is available. Jack ----- Forwarded Message ----- To: "Jack Rubin" <jrubin at spertus.edu> Sent: Monday, March 15, 2010 3:09:20 PM Subject: RE: old DEC gear Hi We have a couple of items forsale on ibid. A Vax 6620 and a TU81 tapedrive current price $1.00 each Here is the link http://ibid.illinois.gov is is under the electronics section.

16 years, 4 months

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VAX stuff

by jrubin＠spertus.edu

This stuff is too new and too big for me - located in Illinois (as per bid site). Note that Craters & Frieghters service is available. Jack ----- Forwarded Message ----- To: "Jack Rubin" <jrubin at spertus.edu> Sent: Monday, March 15, 2010 3:09:20 PM Subject: RE: old DEC gear Hi We have a couple of items forsale on ibid. A Vax 6620 and a TU81 tapedrive current price $1.00 each Here is the link http://ibid.illinois.gov is is under the electronics section.

16 years, 4 months

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Booting a VAXstation

by pcoghlan+cctech＠vms.eurokom.ie

> >> As far as I know you can't boot a traditional VAX from a disk of >> <1GB... but could I put the core of VMS on a small slow narrow SCSI >> disk, like an >> 80MB or something, and put most of it on the only Wide SCSI disk I >> have, a 10GB...? > > You can use a sub-1GB disk to boot from, yes. Booting is, as I >understand it, the only restriction. > Booting is not the only restriction. As far as I know, the same low level drivers in the ROM that are used for booting are also used for writing crashdumps. The problem is that short (6byte?) SCSI commands are used and the addresses wrap back to zero when trying to address parts of the disk beyond the 1.0something GB point. This means that if a dumpfile is located further out than that point on a large disk that VMS has otherwise successfully been installed on, it is possible to end up getting the lower part of the disk overwritten by a crashdump if the system should crash. It is possible to install a minimal VMS configuration on a small disk and access data on a disk larger than 1GB. However, it is difficult to use the larger disk to expand the VMS system as DEC software often wants to be installed on the system disk, ie the one that booted the system. The difficulties can sometimes be overcome but it may take an experienced VMS hacker to do this. I think the best idea is to get something like an RZ26 disk which is around 1GB and use that. It is also possible to boot the 3100 remotely >from another VMS system but this is probably not an option here. Regards, Peter Coghlan.

16 years, 4 months

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eBay Oz : Collection of DEC Unibus modules including custom wire-wrap

by nigel.d.williams＠gmail.com

All sorts of interesting items: TU-60, CM-11, M792 etc http://shop.ebay.com.au/pdp11.caps11/m.html?_nkw=&_armrs=1 not connected with seller, however I did purchase fanfold paper-tape from this eBayer.

16 years, 4 months

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More HP microcode & loader rom detective work

by jdbryan＠acm.org

Jay, On Tue Jul 27 2004 at 09:34, Jay West wrote: > I'm finally digging into my 21MX E-series machines in earnest. In > trying to inventory and document what all I may have, I've found a few > things that stump me and my "docs on hand". Perhaps folks here can shed > some light on these. > > [...] > > Microcode roms I can't identify: > > 93585-80006 > 93585-80007 > 93585-80008 OK, I'm a little late in responding (about six years late :-), but these are the E-Series double-integer firmware instructions (.DAD, .DSB, etc.). They are a product from the HP "specials" group, so they weren't on the regular price list. The relevant HP manual is 93585-90007 at Bitsavers. > 18A0580X012 > 18A0580X022 > 18A0580X032 These are another HP "specials" group product: "93578W Special Pascal Library Subroutines" for the E/F-Series. These are microcoded replacements for the bit-field extract, deposit and indexing run-time function calls emitted by the HP Pascal compiler for access to packed arrays and records. I gather these were used to reduce execution time in Pascal programs. I've not found a manual for these. -- Dave

16 years, 4 months

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Computer on eBay probably analogue

by roger.holmes＠microspot.co.uk

There's a strange computer in Kansas USA on eBay, wrong side of the pond for me anyway. It appears to be for calculating milling machine feed rates. The seller seems to think its a CNC control box but I'm fairly sure it isn't. I found it interesting anyway, the item number is 320502473280. No connection to the seller.

16 years, 4 months

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RGB-VGA Converter -- buy or build?

by silvercreekvalley＠yahoo.com

Ive used lots of RGB/VGA converters over the years for various bits of equipment, mainly older 8 bit micros. There never seems to be a one solution to fit every case, and I've found that different converters work best with different systems. Sometimes I've found using two converters works best, eg going from RGB + composite sync to composite video, and then from composite video to VGA. Just my 2c

16 years, 4 months

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books offered

by rtellason＠verizon.net

Got a few here that might be of interest to folks on the list: -- Fundamentals of COBOL Programming (1968, 1973) -- Programs for Electronic Circuit Design (1986), Radio Shack -- How to Build A Working Digital Computer (1969) Hayden -- Writing BASIC Adventure Programs for the TRS-80 (1982) Tab These (along with a couple hundred others) I have listed on Amazon, but feel free to contact me off-list and let me know if you'd like any of them. I'd like to cover shipping costs, and "a little extra" and get them into the hands of somebody that wants them. Oh, and I still have that IBM binder mentioned in an earlier post -- got three replies, wrote three responses to 'em, and so far nobody has gotten back to me yet to answer "What do you care to offer for it", I'm not just gonna eat the postage, etc. :-) -- Member of the toughest, meanest, deadliest, most unrelenting -- and ablest -- form of life in this section of space, a critter that can be killed but can't be tamed. --Robert A. Heinlein, "The Puppet Masters" - Information is more dangerous than cannon to a society ruled by lies. --James M Dakin

16 years, 4 months

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Selling my SBC6120 (PDP8)

by julian＠twinax.org

Just thought I'd let people interested know I'm selling my SBC6120 board, it's a first run, but still quyite useful, when you look at the new ones that run $600 for a kit. It includes the CPU. http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=300406995665

16 years, 4 months

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Selling my Commodore 128D, if anyone's interested.

by julian＠twinax.org

So, I've decided to part with my 128D, as I already have a flat 128 which I prefer: http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem <http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=300406951107> &item=300406951107 Julian

16 years, 4 months

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APTEC board

by wdonzelli＠gmail.com

I have a little board (2 by 3 inches) with a few TTL chips (7408 and 7474s) with a short ribbon cable terminated with a 14 pin DIP header. No numbers, but the board says APTEC, 1976 REV B, and a "phase 2" symbol. I think this was part of some old microcomputer stuff I used to have. Any ideas what it could be? -- Will

16 years, 4 months

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Soldering (Was: Re: HP-IB, Amigo/cs80 ... )

by trag＠io.com

> > Date: Thu, 18 Feb 2010 13:07:58 -0700 > From: Ben <bfranchuk at jetnet.ab.ca> > Chuck Guzis wrote: > >> Soldering now is far safer than it used to be. I can still recall >> the glorious sensation of picking up an American Beauty 100W >> soldering iron by the wrong end. >> >> I suppose that we should be thankful that we don't use an >> oxyacetylene torch for PCB work... > > I guess that is why BYTE[1] went from a hardware magazine > to software. Some of the best advice I got in college was from an EE professor who told us, "If you drop your soldering iron, don't try to catch it on the way down. Just let it go." Jeff Walther

16 years, 4 months

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test

by chd＠chdickman.com

This is a test. This is only a test. If this had been an actual emergency, you would have been instructed....

16 years, 4 months

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Looking for: VCB02 cable & mouse

by derschjo＠mail.msu.edu

Recently acquired a VCB02 (thanks again, Ulli!) which I hope to get running in my MicroVAX III. I'm looking for the cable that connects >from the bulkhead to the monitor, keyboard and mouse (my research has revealed this to be referred to as "BC18Z-10" in DEC documentation). I have a compatible keyboard, but I'd like to find a mouse as well... Anyone have one to spare, or know of a decent supplier? Thanks, Josh

16 years, 4 months

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SD card on the "obvious" classic bus

by joachim.thiemann＠gmail.com

Hello, with all this talk about SD card for QBUS machines, I was wondering: SD (and SDHC) is easy to interface (if you're not too concerned about speed) and has been attached to pretty much everything under the sun; (well, I guess Jim is still working on the C= version of IEEE-488) so is there anyone making an SD card drive for SCSI? To me that would be a very versatile classic interface; I'd love to have a dead-silent drive for my Amiga, Macs and Sparcs. ST owners would like it too, I'm sure. I know there is one company making SCSI-to-CF interfaces, aimed primarily at old synthesizers (http://www.scsiforsamplers.com/). Unfortunately, the online "search space" is somewhat poisoned due to the fact that most Linux/BSD/whatever OS's use a SCSI emulation to access SD cards - but eyeballing several pages of results I didn't find any SD-to-SCSI devices. I certainly don't have the technical chops to make something like that myself from scratch - but I'd guess a low-speed hack to do it could be accomplished with a Atmel or similar chip with at least 21 IO pins (16 for the SCSI side, 5 for the SD card) but I don't know what kind of line drivers would be needed on the SCSI side. Is anyone aware of such a project in the works? Joe. -- Joachim Thiemann :: http://www.tsp.ece.mcgill.ca/~jthiem

16 years, 4 months

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SD card on the "obvious" classic bus

by julianskidmore＠yahoo.com

Hi folks, Joachim Thiemann wrote: > so is there anyone making an SD card drive for SCSI? A good one to look at is: http://www.circuitgeek.com/the-outstanding-avr-based-scsi-ram-disk/ The above project has also been adapted to work with a standard ATA hard disk and Compact Flash. It's an open development project: you can download the source code to the firmware and schematics. His website seems to be down right now though. And there's also this: http://www.reactivedata.com/Products/SCSI_Bridge_Emulators_to_CF/index.php It seems to me that a good route would be to build, say a QBUS card driven by a microcontroller. Given that even an AVR can handle SCSI comms at a hardware level by itself it can probably handle MSCP and a lot of the interface logic. -cheers from julz @P

16 years, 4 months

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rare and not-so rare systems available

by useddec＠gmail.com

I collect Zeiss equipment, and almost anything optical made brass. But a Hasselblad...hmmm. Paul On Mon, Mar 8, 2010 at 9:59 PM, Zane H. Healy <healyzh at aracnet.com> wrote: > At 7:44 PM -0800 3/8/10, David Griffith wrote: > >> I'll take your unwanted Model M keyboards. >> > > Hehehe... I only have two, and they're among the very few Classic Computer > items that I want to keep. > > Is anyone in Oregon looking for Classic Hardware? If so what. I'm looking > to start selling off my collection. Though someone with a nice Leica (with > lenses), or Hasselblad or Large Format Lenses might be able to score a good > trade. > > Yes, this includes rare systems. Except for some PDP-11, VAX, Alpha, and > Commodore gear I think I'm looking to unload most of my classic gear. > > The only computer I use at home any more is my Mac. I just don't have time > or interest in Classic Computers any more. > > Zane > > > > -- > | Zane H. Healy | UNIX Systems Administrator | > | healyzh at aracnet.com | OpenVMS Enthusiast | > | | Classic Computer Collector | > +----------------------------------+----------------------------+ > | Empire of the Petal Throne and Traveller Role Playing, | > | PDP-10 Emulation and Zane's Computer Museum. | > | http://www.aracnet.com/~healyzh/ | >

16 years, 4 months

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calculating electricity costs

by brianlanning＠gmail.com

Suppose my power company claims that the charge is $0.02407 per killowatt/hour. If I have a computer (or anything) that draws maybe 100 watts. that should be 0.1kw/h x 0.02407 x 24 hours = 5.7768 cents per day or $1.73 a month. I've been under the impression for quite some time that it costs $20 a month to run a typical modern desktop computer 24 hours a day for a month. I know there are taxes and fees thrown into the power bill. But what's wrong with my math? Was I wrong before or am I wrong now? I got this kw/h price from the power company web site burried in a pdf somewhere. It looked like the right price to me. Maybe the actual charge is much higher? brian

16 years, 4 months

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Anyone running RTE-M on an HP 21MX series M, E, or F?

by js＠cimmeri.com

Hi. I'm curious if anyone's got RTE-M booting from mini-cartridge (such as 2645A terminal) or 8" floppy (such as 9885M) for their HP 1000 21MX (eg. 2113E). I'm attempting restoration of a 2113E with the extremely kind assistance of J. David Bryan, and would love to find a bootable primary copy. It would also be great to hear what OSes folks are running on these, and which version they like the best. Thanks very much, John Singleton Rockville, MD.

16 years, 4 months

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