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

Looking for a Compaq Portable (Original) - Rochester NY

by clockj＠email.com

Hello, I was referred to this address as I am looking for an Original Compaq Portable. It would be great to be functional, but is not necessary as long as it is complete. My company is doing a display and we unfortunately do not have one of these around anymore to show what we started with. Thanks for your assistance. Jason Clock

20 years, 11 months

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Freeman PC Museum

by vcf＠siconic.com

Why are people doing this? http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=8220987149 -- Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintage.org [ Old computing resources for business || Buy/Sell/Trade Vintage Computers ] [ and academia at www.VintageTech.com || at http://marketplace.vintage.org ]

20 years, 11 months

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State of the art

by GOOI＠oce.nl

> -----Original Message----- > From: cctalk-bounces at classiccmp.org > [mailto:cctalk-bounces at classiccmp.org] On Behalf Of Paul Koning > Sent: vrijdag 23 september 2005 15:31 > To: cctalk at classiccmp.org > Cc: cctech at classiccmp.org > Subject: Re: State of the art > > >>>>> "Chuck" == Chuck Guzis <cclist at sydex.com> writes: > > Chuck> I was catching up on my reading and came across an > interesting Chuck> article in the September 2005 IEEE > Computer Society "Computer" > Chuck> magazine. The gist of the particular article was > that the Chuck> graphics processors on many high-end PC > video cards are Chuck> overlooked for applications requiring > heavy number-crunching. > Chuck> What caught my eye was the chart that illustrated > that the Chuck> Nvidia G70 graphics processor now performs > at about 170 Chuck> GFlops! (A dual-core Pentium 4 running > at 3 GHz, by contrast, Chuck> will do about 20 GFlops). > > 20 GFlops with a 3 GHz processor? How can that be -- that > would require 3 FP functional units per core, each issuing > one instruction per clock cycle. Did you mean 2 GFlops? > > Chuck> Granted, this is 32-bit vector floating point > arithmetic, but Chuck> the raw numbers are pretty stunning. > > Sure is. > > There may be as many as three processors tucked away in your > PC that are more powerful (though more narrowly focused) than > the main processor. The graphics engine is one -- the other > two are the digital signal processing engines in the disk > read channel and (if you have one) the Gigabit Ethernet interface. > > There's a group somewhere (can't remember the name or URL) > working on developing parallel processing algorithms that run > on your graphics card -- essentially treating it as a vector > coprocessor for your PC. > > paul ... and then there is a nice DSP on the modern soundcards. HAM radio amateurs use the soundcard DSP to decode those chirpy signals you can hear on short wave. Even signals burried in "noise" produce text on your screen. A good example is MixW, but there are several! - Henk, PA8PDP.

20 years, 11 months

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Looking for HP 9895A 8" floppy drive information

by glen.slick＠gmail.com

I recently acquired an HP 9895A 8" floppy drive and was wondering if anyone has user, service, or programming manuals. If I pop off the front cover there is a numeric dial switch, maybe that is simply the HP-IB address. There are also a couple of test switches. I wonder what those do. Anyone know for sure whether or not it is natively supported by an HP Integral PC? I'll probably give that a quick try as soon as I have a chance. I'd also like to try hooking it up to my HP 1000 which has an 12821A interface card. This is supposed to be a supported boot device with the 12992H loader rom. I can look at the 12992H loader rom source and figure out how to read the first sector from the drive, but it would be nice to have complete programming information for the drive. Apparently the 9895A is an Amigo protocol drive, not a CS/80 drive. Does anyone have a generic Amigo protocol spec, or a 9895A specific HP-IB protocol spec?

20 years, 11 months

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Elephant Memory Systems tribute page

by Billy.Pettit＠wdc.com

John C. Ellingboe wrote: I never had a problem with all the elephant disk that I used back then but the absolute worst that I ever saw was a batch of CDC 5.25" disk that maybe half of them were really useable. I would take anyones noname disks over them any day. This brings back memories... I worked at CDC (OK City) when they were making floppies. The head of the division was Thomas Kamp, one of the founders of CDC. He had a CDC field engineer come out and install a couple of CDC drives in his system. This poor kid didn't know who his customer was and just acted normal. When it came time to run a diagnostic, the kid removed the CDC diskettes and used a Verbatim. Kamp asked him why, and he answered (honestly) that the CDC media didn't work on CDC drives. In fact, he said, nobody can read CDC media. A few days later, we had guests from Headquarters who went over the story in great detail. They verifed that CDC drives really couldn't read CDC media. And proceeded to give one of the nastiest public ass chewings I've everbeen witness to. Not long after that, CDC media was made by 3M and branded. Billy

20 years, 11 months

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9895A vs 7902A ?

by aek＠bitsavers.org

just found an answer to the differences. there is a partial 7902/9895 manual hp_floppydisk_7209xx.pdf on dyndns.org that has the history -- Introduction This service manual contains service information for the 7902A, 9895K and the 7902C flexible disc drives and the controller boards used on the HP 250, 300, 1000, and 3000 series 30 and 33 systems. The following brief history describes the changes that have taken place on the disc drives and controller boards and the reasons for the changes. The first production model 7902A flexible disc drives were installed in the HP 250, 300 and 3000 systems. The 7902A drives (P/N 07902-68811) designed for use in the HP 250 and the 7902A drives (P/N 07902-60038/07902-60023) for use in the 300/3000 were non- interchangeable. For this reason a common drive (P/N 07902-67914) was developed as a replacement. Refer to service notes HP 250-01 and 7902A-01 for instructions if one of the old drives is discovered in the field. In the past, the drive mechanisms for the 7902A had been manufactured by Shugart and utilized a tri-compliant head design. As of September, 1980, this drive was replaced with one using a bi-compliant head design used on the 7902C. The drive used on the 9895K is built by CDC and utilizes a tri-compliant head design. These drives are not interchangeable between systems because of differences in drive boards used on the various systems. The drive boards used on the HP 300/3000 systems are designed and built by HP and utilize control signals which are non-industry standard. The drive boards used on the HP 250 systems are designed and built by both Shugart and CDC and utilize industry standard control signals. The controller board (P/N 45000-66510) used on the old HP 250 systems, and the control- ler board (P/N 07902-60024) used on the old HP 300/1000/3000 systems, were also non- interchangeable and they both utilized in MC2 micro CPU. A new controller board (P/N 07902-6652(1) was designed as a replacement for the 45000-66510 board. If one should fail in the field, refer to service note 07902A-5A for instructions. The controller board used on the old HP 300/1000/3000 systems (P/N 07902-60024) is interchangeable with the new controller board (P/N 07902-66501) designed for use with the 7902C. The new HP 3000 systems no longer use the 7902 disc drives. The 9895A flexible disc drives will be used in place of the 7902.

20 years, 11 months

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9895A vs 7902A ?

by aek＠bitsavers.org

I have the svc docs for the 7902A, which describe the Amigo protocol in a fair amount of detail. http://bitsavers.org/pdf/hp/disc/07902-90060_7902svc_May79.pdf This was the drive used in the HP300 (Amigo) Was the 9895A a repackaging of the 7902A for the 1000 series? Does the 9895A still use HP's M2FM encoding format? There isn't really a picture of the 7902A in the manual.

20 years, 11 months

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interested in obtaining early workstations

by aek＠bitsavers.org

Apollos tend to be really thin on the ground (manuals and Domain OS media even more so). -- I'd still like to scan the material that Bob Shannon has, since, as you've noticed, DOMAIN docs were tossed when the machines were. Apollo hardware docs are unobtainium. I tried contacting the one person who was working on porting NetBSD to DN3xxx/4xxx, because he had done a LOT of reverse engr and boot prom disassembly for the machines, but got nowhere. It sounded like he lost interest in the whole thing, and didn't bother to save what he had done.

20 years, 11 months

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commdore 1081

by sami.nikkinen＠gmail.com

Hej! You have written December 2000 [link: http://www.classiccmp.org/pipermail/cctalk/2000-December/161966.html] something about pinouts (data) of cbm (commodore)1081. Any idea where to get it or schematics? Need'em. Cheers, Sami [sami.nikkinen at haminetti.net]

20 years, 11 months

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2116A manual

by aek＠bitsavers.org

> Any luck on finding the HP-2116A volume 2 manual? ;-) Sam Wood says he has one, and a core assembly. I've been asking him about it for months now. Bottom line is he wants a LOT of money for it and I have no interest in spending it on that. As you probably know by now, the 2116 wasn't designed by HP. The B was a redesign to make it manufacturable. Docs for the B and onwards are easy to find (I have probably 6 copies of the 2116B manuals) Because they had such a short life, and weren't particularly reliable there are almost no A's left. The one you turned up was the first one that still existed that I had heard about.

20 years, 11 months

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DEC dispersal

by pspan＠amerytel.net

Hello all, Well, I have written a couple of times about the company next door getting rid of their DEC equipment and prints. The carnage has begun. I picked up an interesting looking DEC user guide for the MRV-11D prom module. If any one would like it (I don't have a scanner), let me know. If there are any specific boards anyone is looking for send me a private email. The folks next door did have someone stop by and make an offer on the entire lot, offer was not accepted. The only offer that was considered, was on the DEC microfiche. I also saved a few sets of IC Masters dates from the 80's and 90's. Watching the dumpster get filled is depressing.....:>( Phil

20 years, 11 months

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HELP - pickup in San Diego?

by jack.rubin＠ameritech.net

Would it be possible for anyone in San Diego to pick up a couple of smallish (dual 5 1/4 floppy, 5 1/4 MFM) HP drives for me at IMS Recycling in San Diego and either re-ship or bring to VCF 8.0? Liberal shipping and beer allowance provided. PLEASE REPLY DIRECT - I RECEIVE THE CLASSICCMP DIGEST AND MSGS LAG 2-3 DAYS Thanks - Jack jack.rubin-AT-ameritech.net

20 years, 11 months

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9895A

by aek＠bitsavers.org

Glen, I have the 12821 interface kit manual scanned, don't appear to have the 9895A scanned. If you can't turn it up anywhere else, I'll try to borrow a copy from Jeff Moffatt or Frank McConnell. The Amigo protocol is documented in Appendix A of http://bitsavers.org/pdf/hp/disc/09134-90032-Aug-1983.pdf Tim, if the floppy you were using was in a 10 1/2" box, it was probably from a third party. Vertical mount drives were made by Sykes, DSD, AED, and others.

20 years, 11 months

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orbis drive

by aek＠bitsavers.org

> What in tarnations is an Orbis drive? Single-sided 8" floppy. VERY early. made by Wangco. I have the product spec. Will put it on bitsavers in a little while.

20 years, 11 months

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WTB: Tower case for IBM model 80, 60 or 65 (PS/2)

by dwight.elvey＠amd.com

Hi Another option on the auto transformer is to use the primary of a transformer that was designed to be configured for both voltages. You just ignore the output leads. The transformer in this case only needs to be rated for 1/2 the power that you are sending to the final device. It should be noted that in der Mouse's diagram, each transformer needs to be rated for 1/2 the power. Dwight >From: "der Mouse" <mouse at rodents.montreal.qc.ca> > >> A crude method is to find three biggish AC power transformers all the >> same. Hook all three secondaries together in parallel, then use one >> of the primaries as the primary and hook the other two secondaries >> series-aiding to make the 220 volt 'secondary.' > >Just watch your phasing; get the leads swapped to one of the "other >two" transformers and you'll get (nominal) zero voltage instead of >double voltage. > >Indeed, you can do something autotransformerish with only two >transformers: > > ---------------------. >IN | > --------+------------|------------------------------- > | +----+ OUT > | | | +------------- > | | | | > |_()()()()()_| |_()()()()()_| > _==========_ _==========_ > | ()()()()() | | ()()()()() | > | | | | > +------------|----+ | > +-----------------+ > >Of course, the three-transformer version produces double voltage that's >isolated from the input, whereas the above doesn't. Also, you still >have to watch the phasing; get a winding's leads swapped and you get >zero voltage instead of doubled voltage. > >/~\ The ASCII der Mouse >\ / Ribbon Campaign > X Against HTML mouse at rodents.montreal.qc.ca >/ \ Email! 7D C8 61 52 5D E7 2D 39 4E F1 31 3E E8 B3 27 4B >

20 years, 11 months

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Some more free manuals + some cheap ones

by birs23＠zeelandnet.nl

I found some more free stuff : - Dataproducts SPG8020-1/2 Impact Matrix Printer Owner's Manual - Digital Controls DCC 9000 SCSI Switch Owner's Manual - IBM 5291 Models 1 and 2 Display Station Operator's Guide - Quarterdeck manifest Also have some more manuals for sale for 1 euro a piece : - TRS-80 Micro Computer Technical Reference Handbook - Datapoint 8603/8605 Processor Product Specification and Hardware Reference Manual - Micom Micro800/2 Data Concentrator M822, M824, M828, M8212, M8216 User's Manual - HP RTE-A Primary System Software Installation Manual (still shrinkwrapped, loose pages, needs binder) - HP Manual Update RTE-A Driver Reference Manual, Update Number 4 - HP Manual Update RTE-A Utilities Manual, Update Number 3 - HP 2930 Series Printers Owner's Manual - Micro Mint DISK-80 Expansion Interface Owner's Manual and Assembly Instructions - Digital VMS System Manager's Manual VMS 5.2 ------------------------------------------------------- http://www.oldcomputercollection.com

20 years, 11 months

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Free : IBM 5291 Model 2 Display Station Maintenance Library

by birs23＠zeelandnet.nl

Free for postage the manual : "IBM 5291 Model 2 Display Station Maintenance Library". Productnr is SY31-0667-1 Item is located in the Netherlands. Stefan. ------------------------------------------------------- http://www.oldcomputercollection.com

20 years, 11 months

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Scanning

by Watzman＠neo.rr.com

Re: > 1) Things that are mostly schematics. > > 2) Things with a large text component that I might want to try to OCR. > Questions: > > a) What resolution should I use for these two things? For OCR, it may depend on the OCR software, but for almost everything I have found that 300 dpi and gray-scale (8 bits per pixel) JPEG works best. Grayscale is definitely better than black-and-white (1 bit per pixel) for reproduction that is indistinguishable from the original, but for some OCR software, black-and-white line art (1 bit per pixel) may work better.

20 years, 11 months

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DEC dispersal

by James＠jdfogg.com

> Well, I have written a couple of times about the company next > door getting rid of their DEC equipment and prints. The > carnage has begun. Where is this?

20 years, 11 months

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Westinghouse PC1100 PLC Programming software?

by ntec＠btconnect.com

Hi, I am currently working on a project to replace an existing Westinghouse PC1100 plc. I was wondering if you have the PLC programming software to enable me to open the customers Program CD copy. This would allow me to easily convert the program. Would you be so kind as to point me in the right direction. As I am just about to give up? Best Regards Stuart Matthews Ntec Solutions 01753 528321

20 years, 11 months

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WTB: Tower case for IBM model 80, 60 or 65 (PS/2)

by jpero＠sympatico.ca

No need for hd but need the HD rails, floppy drives and power supply. I have the model 80 motherboard waiting for a case. If someone wants the 220AC only PSU for industrial 80/60/65, feel free to take it. PSU is a big restangular passive cooled with screened cage cover. I was advised that to change this 220VAC unit to 115VAC would not work even I knew what exactly to do just install voltage doubler circuit. Cheers, Wizard

20 years, 11 months

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For those of you looking to match DEC paint colors

by mcesari＠comcast.net

Saw this link in an article on alt.sys.pdp10 -- http://www.hp-store.com/PD_08449.aspx Hopefully still useful.

20 years, 11 months

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[Fwd: VAX 11 -750 rescue in the Chicago area]

by tponsford＠theriver.com

posted from the netbsd-vax mailing list -------- Original Message -------- Subject: VAX 11 -750 rescue in the Chicago area Date: Wed, 21 Sep 2005 20:13:33 -0500 From: Stan Johnson <stan.johnson at gmail.com> Reply-To: srj at pobox.com To: port-vax at netbsd.org Hi all In July I posted trying to sale a VAX 11/750. I've had several people try to buy the machine, but the sales have fallen thru for various reasons. I originally thought I had to have the machine sold and gone by the beginning of aug, but I got an extension to the end of sept. for the storage space. Unfortunately the sale that was suppose to move the machine last weekend has seems to have died. If I don't hear from the buyer by tomorrow, I ll need to find someone else to take the machine. So I am starting now since I am running out of time. After my original post several people said I was asking too much money (~$500), but other people seemed to be interested. Is there anyone that can pickup a VAX 11/750 at a location ~40 miles west of Chicago this coming weekend? If you can pickup the machine this weekend it is yours. Pay me what you think the machine is worth, and if you have to spend the money on a truck to transport the machine instead, then so be it. I really want to see the machine saved. Let me know ASAP. If I get no responses by Friday, I'll have to make arrangments to have it hauled away for scrap on Monday. It has to be out of the storage space by Monday evening. Following is a list of what is included. Thanks again for your time, sorry for the short notice........ stan johnson Here is what is included; VAX11-750 including ......Full Set of spares, front panel down to the power supplies, ......Print Set,

20 years, 11 months

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Elephant Memory Systems tribute page

by vcf＠siconic.com

http://home.comcast.net/~kevin_d_clark/ems/ -- Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintage.org [ Old computing resources for business || Buy/Sell/Trade Vintage Computers ] [ and academia at www.VintageTech.com || at http://marketplace.vintage.org ]

20 years, 11 months

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VCF 8 question

by chrism3667＠yahoo.com

sort of a vague question, that will undoubtedly be met by a vague response. How much groovy stuph can be found for sale there? Lets take something reasonably scarce as a Mindset. Whats the likelihood of one being offered? Can we assume that most of the people attending the show are on this list? Isnt this list like a virtual VCF, so WHY CANT SOMEONE OFFER ME ONE RIGHT HERE AND SAVE ME THE PLAINFARE. Always looking for groovy vintage stuph, peecee not-compatibles rank high on my list ;) __________________________________ Yahoo! Mail - PC Magazine Editors' Choice 2005 http://mail.yahoo.com

20 years, 11 months

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CP/M archive to image 8" CP/M floppies

by aek＠bitsavers.org

>If you use Tim Mann's catweasel tools and generate DMK images (are there >any others that run on Linux?) rfloppy part of Eric Smith's DMKlib package http://dmklib.brouhaha.com/

20 years, 11 months

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CP/M archive to image 8" CP/M floppies

by dwight.elvey＠amd.com

Hi I tend to agree with Sellam. If one wants, it is usually a trivial job to extract the file(s) of interest from an image. It is impossible to guess what piece might be missing from a pile of files. I don't think space is an issue any more. Dwight >From: "Vintage Computer Festival" <vcf at siconic.com> > >On Sat, 17 Sep 2005, Barry Watzman wrote: > >> While images are nice, for CP/M there is another alternative that may be >> more widely useful and easier, although it's less historically accurate. >> That is just to copy the files over to MS-DOS disks, where they can then >> exist in folders on a modern hard drive or be put on CDs or DVDs. I can >> really see no advantage to a strict "image", as long as one has the files. >> >> The issue that this leaves out is the system tracks, but that is easily >> dealt with: Runs "SYSGEN", exit, and then do a "SAVE 34 SYSTEM.COM" and you >> have the system tracks as a disk file in a format that is easily restored >> simply using SYSGEN. >> >> This method also has some actual advantages, in terms of being able to >> actually use the software with a CP/M emulator on a PC. >> >> Since I'm not aware of any CP/M programs that did copy protection or any >> other type of manipulation that would require an exact disk image, I don't >> really see the drawback of this approach. > >The one main drawback is that this is not an accurate or appropriate way >to create an image for historical preservation. For this reason I >recommened against what you describe. > >-- > >Sellam Ismail Vintage Computer Festival >------------------------------------------------------------------------------ >International Man of Intrigue and Danger http://www.vintage.org > >[ Old computing resources for business || Buy/Sell/Trade Vintage Computers ] >[ and academia at www.VintageTech.com || at http://marketplace.vintage.org ] > >

20 years, 11 months

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QBUS RLV12 and the VAX

by todd＠compusleuth.com

Curt: I saw an old post of yours from 2003 included below, about the RLV12. I am working on a hobby/project to copy a large collection of my old software from RL02. I was wondering if you ever got your RLV12 to work with the VAX? I was under the impression that because the RLV12 controler was old PDP11 DMA it could not handle the VAX MMU, so the DMA would write the data to the wrong area of memory? I do know that DEC never supported the RLV12 with any QBUS VAX. Todd > Hi, > > I've got an RL02 connected to my Vax 4000-200 through an RLV12 QBus > controller. > > The Drive is spinning up fine and the Ready light is Lit, the Fault light > goes off once power to the Vax is started and doing a SHO DEV at the Chevron > prompt and within OpenVMS both show: > > RLV12 Controller 0 (774400) > -DLA3 (RL02) > > Which looks great from my perspective, the drive ID plug is a 3, so DLA3 makes > total sense. In the SHO DEV within OpenVMS does display the drive as being > online. > > So my problem is with MOUNT, everytime I go to mount the drive the system > simply hangs and never seems to complete the mount, I end up having to CTRL- > BREAK to Halt the system back to Chevron and b up again from my DSSI DIA0: > > Anyone have any idea's what I'm doing wrong or what may be wrong??? > > I've tried with a /FOREIGN too since this platters are from an 11/730 and many > of the handwritten labels on the disk paks say RSTS on them, so I wasn't sure > if it was a format issue or something, I could really use some help/advice from > anyone with a lot of experience with the quirks of the RL's. > > Thanks much, > > PS: If anyone has an RK05 or RK07 DECPack for sale and possibly an RKV11D Qbus > controller I am in the market for one. > > Curt >

20 years, 11 months

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old PCs and CGA monitors, more etc free

by recycler＠swbell.net

you pick up in Dallas; south oak cliff. Have several compaq luggables, a couple of TI professional computers, a bunch of CGA and some EGA monitors, several PC XT 286 386 deskpros, sanyo PC, etc, also a few remaining oldies like a DEC LP01 line printer, the first DEC line printer, and a vaxmate, and some rainbow softeware, PC parts, NOS 5.25 disks, an old fairchild video game console, ad nauseum, etc.. just bring a bobtail truck. Winner (must) take all. all free, otherwise soon it must go out to the bad place. lab must be clear soon. 214-763-4764 Patrick

20 years, 11 months

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CP/M archive to image 8" CP/M floppies

by dave04a＠dunfield.com

>> While images are nice, for CP/M there is another alternative that may be >> more widely useful and easier, although it's less historically accurate. >> That is just to copy the files over to MS-DOS disks, where they can then >> exist in folders on a modern hard drive or be put on CDs or DVDs. I can >> really see no advantage to a strict "image", as long as one has the files. >> >> The issue that this leaves out is the system tracks, but that is easily >> dealt with: Runs "SYSGEN", exit, and then do a "SAVE 34 SYSTEM.COM" and you >> have the system tracks as a disk file in a format that is easily restored >> simply using SYSGEN. >> >> This method also has some actual advantages, in terms of being able to >> actually use the software with a CP/M emulator on a PC. >> >> Since I'm not aware of any CP/M programs that did copy protection or any >> other type of manipulation that would require an exact disk image, I don't >> really see the drawback of this approach. > >The one main drawback is that this is not an accurate or appropriate way >to create an image for historical preservation. For this reason I >recommened against what you describe. Somehow I missed the beginning of this thread (had a few mail probs lately), so please forgive if I am wandering too far away from the original topic, but I gather we are trying to figure out how to best preserve CP/M disks. I to agree that copying the files is not the best solution - even if you do the SYSTEM.COM thing, you still need a working CP/M boot disk to be able to make a boot disk (chicken and egg type of deal) - Having restored a number of systems for which I did NOT have an original boot disk, I can tell you that this can be an issue. I've used ImageDisk to backup and restore quite a few CP/M disks by now, and it works well, deals with system tracks just fine, and allows you to make a bootable disk from "starting point zero". It does have two limitations: - For 8" systems, you will have to attach an 8" drive to your PC ... I've put up a page on my web site which describes this in a bit of detail, including an adapter thats very easy to make to convert the 8" interface to plug into a standard 5.25" cable. - The disk format must be one that is compatible with the PC's 765 controller The only work-around for this is to use CPT. For cases where the disk format is not compatible with the PC (hard or non-IBM format sectors), I have created CPT (CP/m Transfer) which is also available on my site - CPT transfers disk images to and from the actual target system over the serial port, and can work with ANY format disk (because it uses the targets disks and controller). CPT has a different set of limitations: - The target system must have a serial port (it doesn't have to be the console). - You need to provide a very small binary serial port driver for the CPT resident client. Even if you don't know how to talk to it, looking at the device number of the UART, and a few minutes tracing vectors and disassembling with DDT will usually give you the info you need. - CPT can't always handle system tracks - CP/M does not provide a standard way to read/write the system tracks, and on some systems they are different from the user tracks and incompatible with the system floppy driver. CPT allows you to skip them, and you could use SYSGEN/SAVE to place a copy of them in the user area. - CPT requires you to have a working target system backup and recreate the disks. It *SHOULD* be possible to save a memory image of loaded CP/M and FORMAT which can be loaded into a bare system to create a formatted disk. I have not had to do this with CP/M yet, but I have done it with Cromemco RDOS which is similar. Note that you still need a means of getting the memory image into memory and launching it at the right address (for Cromemco you can use RDOS) - I have a very tiny (<500 bytes) 8080 monitor which would work for this purpose. With CP/M you would need to have a second memory image with SYSGEN, and system tracks preloaded in memory, and possibly a third with the CPT client preloaded - but these should be possible, at which point you could use CPT to transfer over full disk images. I've been toying with the idea of writing a program to allow you to list the directory, and import/export files to/from a CP/M ImageDisk image (or perhaps just a straight binary disk image which IMDU can create)... This would allow the files to be used under a CP/M simulator that uses the DOS file system fairly easily ... too busy to even start right now, but perhaps sometime this winter. 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

20 years, 11 months

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please subscribe

by Rinaldo.Eversdijk＠stork.com

Dear people, Please subscribe me from the mailing list, as it is not working properly via your webside. Best regards, Rinaldo Eversdijk -----Original Message----- From: Spam Warning Sent: woensdag 21 september 2005 9:31 To: Rinaldo Eversdijk Subject: <Denied Content> GROUP Wall Server: smtp ----------------------------------------------------------------------- Mail-Info (mail2.box, checking Process M02, message 0029453A) From: cctalk-bounces at classiccmp.org To: "General Discussion: On-Topic Posts Only" <cctech at classiccmp.org> CC: Rec.: rinaldo.eversdijk at stork.com Date: 09/21/2005 04:38:52 AM Subject: Re: CP/M archive to image 8" CP/M floppies This mail has been notified as SPAM-Mail. If it is mail which is not SPAM please contact your local supportdesk. ----------------------------------------------------------------------- Quarantine Report Link: (Document link: Quarantine Report) ------------------------------------------------------------------------ ------------------------------------------------------ Summary Report multiple text dump BADMAILS BADMAILS = 80 ------------------------------------------------------------------------ ------------------------------------------------------ Detailed Report Element: multiple text dump Analyzer Report ************************** Call Analyzer: Stork CORE Analyzer Spam Source File: C:\WINNT\TEMP\tk\62c\af8\Text_Normalizer_3844 Results: BADMAILS: 80 BADMAILS-DV: 1221 ************************** GROUP Content Analyser V2.0, [Nov 11 2004 14:31:34] ---------------------------------------------------- SVM Classificator GROUP Classifier - created 20-Sep-2005 15:01 supports 2 classes based on a training set of 1242 documents. The total accuracy of the Classificator is 92.03% Analyse file C:\WINNT\TEMP\tk\62c\af8\Text_Normalizer_3844 C:\WINNT\TEMP\tk\62c\af8\Text_Normalizer_3844 Result: BADMAILS=80 Result: BADMAILS-DV=1221 duration: 0.0sec Convert Report ************************** Call Converter: Text Normalizer Source File: C:\WINNT\TEMP\tk\62c\af8\multipleTextDump_3843 Target File: C:\WINNT\TEMP\tk\62c\af8\Text_Normalizer_3844 ************************** Text Normalizer V1.2 [Nov 11 2004 14:32:03] Used parameters: RemoveSpacedTypeFace = YES RemoveUnixBoldTypeFace = YES ClipLineBeginnings = YES ClipLineEnds = YES RemoveSyllableDivisions = YES Timeout = 1 minutes NoErrorOnTimeout = YES MaxNormalizedCharacters = 10000 Line beginnings to remove: "* " ">" Line ends to remove: "*" Syllable division characters: '-' '~' Source file: "C:\WINNT\TEMP\tk\62c\af8\multipleTextDump_3843" Destination file: "C:\WINNT\TEMP\tk\62c\af8\Text_Normalizer_3844" => Ok! -------------------------------------------------------------------------- DISCLAIMER: This e-mail and any attachment(s) sent with it are intended exclusively for the addressee(s), and may not be used by, opened by, passed on to, or made available for use to, any person other than the addressee(s). Stork rules out any and all liabilities resulting from any electronic transmission.

20 years, 11 months

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Free Macintoshes

by chenmel＠earthlink.net

I have some Apple Macintoshes that I would like to find a new home for. Free for the cost of shipping, or you can pick them up. They're still a bit too new to be 'on topic' here, 'Beige G3' machines, but if you hold onto them a few years.... Good machines to run the free Unixes on, and they have both IDE and SCSI interfaces and use standard SDRAM memory. They are the 'desktop' case machine and don't have memory or hard drives. I'm pretty sure they all work, though they haven't been run in some time. I am located south of Indianapolis in Indiana.

20 years, 11 months

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looking for a book on monitor theory

by chrism3667＠yahoo.com

Can anyone recommend a book on the theory of operation of RGB computer monitors. I imagine a book that concentrates on monitors, as opposed to TV's in general, is probably uncommon. In that event, a recommendation for something general would be appreciated, whether a past or present publication. Purpose: the investigate the possibility of modifying a recent multisync to sync down to TV frequencies. Not interlaced necessarily. Just to use a modern monitor with stuph that operates between CGA and VGA frequencies. Much obliged. __________________________________ Yahoo! Mail - PC Magazine Editors' Choice 2005 http://mail.yahoo.com

20 years, 11 months

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Creed Envoy teleprinter

by geoffreythomas＠onetel.com

The Asst. Curator of the Signals Museum at RAF Henlow, Alf Fisher, is trying to obtain schematics for the above machine , He says, "I have a Creed manual which covers everything mechanical but only block diagrams about the electronics aspects of the machine. I suppose they had a policy to replace a printed circuit board if it became faulty rather than diagnose a fault and repair it. Please can you help at all with the electronics of the machine? " Anybody have any info ? Cheers , Geoff. -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.344 / Virus Database: 267.11.3/107 - Release Date: 20/09/05

20 years, 11 months

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Workslate do you still have it?

by pnougues＠gmail.com

Hi, Are you looking for a Workslate? I have an original from December 92 with several SW cartridges, printer, modem in original state. Patrice Nougu?s -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.344 / Virus Database: 267.11.3/106 - Release Date: 19/09/2005

20 years, 11 months

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Don't use "BidPay"!!!!

by dwight.elvey＠amd.com

>From: "Philip Pemberton" <philpem at dsl.pipex.com> > >In message <Pine.SUN.4.20.0509182051150.1065-100000 at osfn.org> > William Donzelli <aw288 at osfn.org> wrote: > >> Cash - the most sincere form of payment. > >The only truly irrevocable one too. Well, aside from maybe a bank transfer >(BACS/CHAPS). > Hi I like postal money orders sent by US mail. If the seller doesn't send the item or misrepresents the item it is mail fraud. A simple message or two about bringing the postal office into the action brings quick results. Dwight

20 years, 11 months

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VCF 8.0 Exhibits Registration (Nov. 5-6)

by vcf＠siconic.com

If you're planning to exhibit at VCF 8.0 on November 5-6, now would be a good time to register ;) http://www.vintage.org/2005/main/exhibit.php Currently registered exhibitors also available at the above URL. -- Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintage.org [ Old computing resources for business || Buy/Sell/Trade Vintage Computers ] [ and academia at www.VintageTech.com || at http://marketplace.vintage.org ]

20 years, 11 months

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QuantumLink project posted to Slashdot.org

by Richard.Cini＠wachovia.com

http://slashdot.org/article.pl?sid=05/09/19/2321236 <http://slashdot.org/article.pl?sid=05/09/19/2321236&tid=95&tid=120> &tid=95&tid=120 Here's the link to the QuantumLink project is it is discussed on /. Rich

20 years, 11 months

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Kaypro boot disk.

by dave04a＠dunfield.com

>> Did anyone ever set up an archive for cpm disks? >> There was a lot of talk about it a while ago when Maslin's archine >> went away. Anyone attempting to re-create it yet? > >It looks like I'm about to embark upon such a project... :) I'm slowly building a collection of various boot/system disk images, which can be found in the "Disks/Software images" area near the bottom of my main page. As long as Rob (the guy hosting the site and a fellow collector) continues to let me increase my space usage, I will continue to add to it. I'd be happy to work with others wishing to build up this or another archive. 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

20 years, 11 months

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Altos 586 system sold on eBay

by RMeenaks＠OLF.COM

Send him an email. I do this all the time when I spot transputer hardware/software on ebay regardless if I bid on it or not. I email the winner and he gladly sends me copies (I also do this with the seller as well).... Ram > Xenix with an 'office suite' on it as well). Does anybody > know this buyer? >

20 years, 11 months

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QuantumLink project posted to Slashdot.org

by Richard.Cini＠wachovia.com

Ouch is right but based on a follow-up post from Jim, his servers are withstanding the load... -----Original Message----- From: cctalk-bounces at classiccmp.org [mailto:cctalk-bounces at classiccmp.org] On Behalf Of Sridhar Ayengar Sent: Tuesday, September 20, 2005 7:51 AM To: On-Topic and Off-Topic Posts Subject: Re: QuantumLink project posted to Slashdot.org Cini, Richard wrote: > http://slashdot.org/article.pl?sid=05/09/19/2321236 > <http://slashdot.org/article.pl?sid=05/09/19/2321236&tid=95&tid=120> > &tid=95&tid=120 > > > > Here's the link to the QuantumLink project is it is discussed on /. > > > > Rich > > Ouch. Peace... Sridhar

20 years, 11 months

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Altos 586 system sold on eBay

by dave04a＠dunfield.com

>I've got a 586 and I think I've got install disks for it somewhere, from >a friend who passed away a year ago. I'll see if I can find them, and >get some images made. Hi Pat, My Altos586 is in the same boat as Scotts - it boots OK from the hard drive, but I don't have install media should I ever need to rebuild it. The one disk I have on my site was "stuffed into the drive" when I got it, but I don't think it's enough to reinstall the system. Please let me know if you locate the Altos install disks - I'd also be happy to include the images in my archive if thats OK with you. 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

20 years, 11 months

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Don't use "BidPay"!!!!

by dwight.elvey＠amd.com

>From: "John Allain" <allain at panix.com> > >>> A simple message or two about bringing the postal office >>> into the action brings quick results. > >> Do you know if they would actually persue the seller in >> a case of fraud or misrepresentation? > >In my one case I filed with the Post Office for a refund, got it >(minus a fair service charge) and then a few months later when >their computers matched "A" with "B", got a bill for the spent MO >Anyway! I like the way Dwight phrases it though. >Just use the threat of action. > >John A. > Hi They do claim that they will investigate any claims of mail fraud. That goes both ways. They like to know about counterfeit MO's. One rule is to never except a money order for more than the sale value. There is no reason the buyer can't make it for the exact amount. Also, if a seller, only except postal money orders. It is not that it offers any more protection it is just that the PO gets more excited if there is a counterfeit postal money order. I don't expect that the PO would correctly handle a refund, I just expect that the seller would think twice about a federal crime as compared to a state law. Postal money orders sent through the mail are federal issues. The only other thing I don't like about postal money orders is that they are real slow about checking to see if the money order has been cashed. You'd think with the current day computers, it should be an on line operation, taking seconds. Dwight

20 years, 11 months

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Co-Power-88 Equipped ATR8000 on EBay

by curt＠atarimuseum.com

Anyone who may be interested (not mine) there is an SWP ATR8000 computer up on Ebay, I noticed it has a Co-Power-88 adaptor board on it, which allowed it to run both CP/M and (Limited) MS-DOS based programs. It has a nice pair of 5.25" disk drives with it. The ATR-8000 is also a peripheral for Atari 800 home computers and allows them to use its ports for printer, modem and standard disk drives (as well as being able to mix Atari SIO disk drives with its standard disk drives) Its a nice unit. I have several, including one of the only ATR8500's ever made. If anyone bids and wins, contact me off list as I can provide copies of all of the manuals for the ATR8000 and the Co-Power-88 as copies of the SWP utility disks and CP/M 22 and DOS 2.1 disks in Atari format to boot it up. http://cgi.ebay.com/Rare-Vintage-Atari-ATR-8000-DOS-computer_W0QQitemZ52440… Curt -- No virus found in this outgoing message. Checked by AVG Anti-Virus. Version: 7.0.344 / Virus Database: 267.11.1/104 - Release Date: 9/16/2005

20 years, 11 months

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BURROUGHS reel tape

by tomj＠wps.com

Up at Apex, what did I see, part 2: http://wps.com/temp/B-tape.jpg Not too spectacular, just some old reel tapes in (luckily) weather-proof containers. BURROUGHS. 3200 fci, so not too ancient. Stuff like this (minor) scattered all through the place.

20 years, 11 months

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Help scrounging in England

by ceby2＠csc.com

Folks, I've been posted to England for a bit, and I wondered if maybe one or two of the UK list members would give tips on good sources for systems and components in the South East. I collect mainly IBM midrange, Atari and UNIX flavours, but I'm toying with learning PDP11. Are there any good swap-meets, favorite skips, etc. you could clue me into? Thanks, Colin Eby -- ceby2 at csc.com -- tel. 01252 813921 -- mobl. 07917 643 322 CSC - EMEA Northern Region - C&SI -Technology Architect ---------------------------------------------------------------------------------------- This is a PRIVATE message. If you are not the intended recipient, please delete without copying and kindly advise us by e-mail of the mistake in delivery. NOTE: Regardless of content, this e-mail shall not operate to bind CSC to any order or other contract unless pursuant to explicit written agreement or government initiative expressly permitting the use of e-mail for such purpose. ----------------------------------------------------------------------------------------

20 years, 11 months

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INMOS DSP Databook on ebay

by RMeenaks＠OLF.COM

Hi, This is a very difficult databook to obtain. It took me about 4 years to obtain one. Contains info and tech notes on the A1xx class of INMOS DSP processors including the IMSB009 Quad-A100 + transputer processing board... http://cgi.ebay.com/Digital-Signal-Processing-Databook-INMOS-PB_W0QQitemZ697 8750783QQcategoryZ69479QQssPageNameZWDVWQQrdZ1QQcmdZViewItem Cheers, Ram

20 years, 11 months

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CP/M archive to image 8" CP/M floppies

by Watzman＠neo.rr.com

While images are nice, for CP/M there is another alternative that may be more widely useful and easier, although it's less historically accurate. That is just to copy the files over to MS-DOS disks, where they can then exist in folders on a modern hard drive or be put on CDs or DVDs. I can really see no advantage to a strict "image", as long as one has the files. The issue that this leaves out is the system tracks, but that is easily dealt with: Runs "SYSGEN", exit, and then do a "SAVE 34 SYSTEM.COM" and you have the system tracks as a disk file in a format that is easily restored simply using SYSGEN. This method also has some actual advantages, in terms of being able to actually use the software with a CP/M emulator on a PC. Since I'm not aware of any CP/M programs that did copy protection or any other type of manipulation that would require an exact disk image, I don't really see the drawback of this approach.

20 years, 11 months

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Old Macworld magazines

by teoz＠neo.rr.com

Does anybody have any 1990-95 MacWorld Magazines they want to get rid of?

20 years, 11 months

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IMSAI 8080 up for bid on VCM

by vcf＠siconic.com

Jon Titus is auctioning his IMSAI 8080 on the Vintage Computer Marketplace: http://marketplace.vintage.org/view.cfm?ad=2014 High bid as of now is $10! -- Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintage.org [ Old computing resources for business || Buy/Sell/Trade Vintage Computers ] [ and academia at www.VintageTech.com || at http://marketplace.vintage.org ]

20 years, 11 months

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Datapoint 3300 and DEC VT06 terminals

by swtpc6800＠comcast.net

>I am doing a bit of research on Computer Terminal Corporation terminals >and > I am looking for a picture of the Datapoint 3300. I found a good scan of an 8 page brochure on the Datapoint 3300 and clipped an image. Here a a work in progress on the TV Typewriter history. http://www.swtpc.com/mholley/History/TVT_History.htm Michael Holley

20 years, 11 months

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VAX 4000/705a SCSI

by birs23＠zeelandnet.nl

I'm sure some of you guys have the exact answer to this : I've got a VAX 4000/705a without any disks. I could of course get some DSSI disks but I would rather have some SCSI disks attached to it. My question : how can I make this VAX SCSI able ? And second question, can anyone help me get any needed hardware to for this ? Stefan. ------------------------------------------------------- http://www.oldcomputercollection.com

20 years, 11 months

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FREE Commodore 1541 disk drives (3)

by gehrich＠tampabay.rr.com

Subject: FREE Commodore 1541 disk drives (3) I have three Commodore 1541 disk drives that were used on the Commodore 64 computer back in the 80's. They are rather old and I am unable to test them but have been told that they worked the last time they were used. They are FREE for the taking but they must be picked up in Spring Hill Florida. please respond to ygehrich at yahoo.com

20 years, 11 months

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Commodore B-128 series & 4040 dual drive

by Jerryalpha＠cs.com

Dear Bill, I cam across your name in an old web site relating to your having a few CBM 4040 drives. I wonder if these are still available? Jerry Buckwalter in PA

20 years, 11 months

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HP Integral Modem

by ard＠p850ug1.demon.co.uk

The good news : I've got the HP Datacomm program, and it seems to work fine with that HP82915 modem board that I mentioned last week. Amazingly, then, the kermit supplied by HP for the Integral does not support the modem. Hmmm... One to watch for if you're trying to get one of these modems to behave. Alsa, from what I can see the Datacomm program is user friendly (in other words, hacker hostile). It only lets me set 300 or 1200 baud (why not 110? A 300 baud modem will work at lower baud rates). It only uses the modem in 'originate' mode. It does pulse dialling, not DTMF (why???) But it seems to work. My only problem now is getting something for it to talk to. I have no intention of using it on anything other than a bit of cable on my bench, so approval is not a problem. Maybe I'll just dig out an AM7910 chip and start soldering... -tony

20 years, 11 months

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HP DIO GPIO card 'options'

by ard＠p850ug1.demon.co.uk

I've just boaght what appears to be a brand new HP 98622 GPIO card. This is the 16 bit parallel I/O card for the DIO bus, as is used on the 9836, etc It came with a user manual. This was a lot more use than I expected it to be as it includes a schematic. It's a fairly thin manual, but full of information. One interesting diagram at the back shows the correspondence betweene the DIP switches on this card and the links in the 98032 I/O module for the 9825... Anyway, it describes 4 'options' for this card. Each one was a particular cable -- one was the 50 pin Blue Ribbon plug to fit the card and bare wires on the other end. The other 3 were wired to connectors to fit the 9885 disk drive (9" floppy), a Multiprogrammer (I forget the number, but the one that didn't have an HPIB interface) and finally one for the 9866 printer. The manual does give the switch settings to use the board with each of these devices, but no wirelists of the cables. And amazigly I have all 3 of the listed peripherals. So my question is obvious. Does anyone have any of these cables and could 'buzz out' the wiring? -tony

20 years, 11 months

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Looking for info/software/anything for 9-track adapter

by tubastuff＠inbox.com

Howdy list, I've just picked up a Computer Logics PCTD III 9-track tape drive ISA adapter board. It has a 68-pin D-sub socket on the mounting bracket for connection to a Pertec interface drive (I've got a brand new Fujitsu M2444AC). My problem is that I have no documentation or software at all for this thing. I called Chi Corporation to see what they have for it and they said that they've long since disposed of any information on the card. The only thing that the guy at Chi could remember is that it doesn't work with faster CPUs. So I'm stuck for any information on this board. I'm looking for either copy of software or technical documentation for the card. My intent is to write either a Linux or XP driver for this thing and I'll be happy to share the results of my work. Can anyone help out? Thanks much! Chuck Guzis Sydex, Inc.

20 years, 11 months

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TSX Plus...

by lbickley＠bickleywest.com

Several folks have sent me Emails concerning the status of getting TSX Plus online. The delay is my fault: I changed ISPs recently and have had to move our company website, ftp, mail, etc. to the new site. We are also in the process of becoming the U.S. mirror for a large european SGI tech. info site (hopefully to be completed in a week or so). I'll post it when it's up and running. I expect to have the time within the next couple of weeks to have all the TSX-Plus goodies available online. Cheers, Lyle -- Lyle Bickley Bickley Consulting West Inc. Mountain View, CA http://bickleywest.com "Black holes are where God is dividing by zero"

20 years, 11 months

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Kaypro boot disk.

by dave04a＠dunfield.com

At 21:47 17/09/2005 -0500, you wrote: >A colleague of mine is looking for a boot disk for a Kaypro 4 '84. He >says : > >"I have a Kaypro 4 (83), Kaypro 4(84), and a Kaypro 10. >The boot disks for all three are mutually incompatible. >What I still need is a boot disk for Kaypro 4(84)." > >(These are 5.25 inch floppies, of course. An actual disk would be great, >but he says that if somebody wanted to send a disk image, he could work >with that, as long as he knew what program was used to create it.) > >Can anyone email me images of all boot disks or direct me to appropriate >web site? I will reimburse postage/disk costs if someone wishes to send >physical disks instead of emailing images. > >Braldey Slavik I have the Kaypro4(*84) system disk images on my site. Look under "disk/software images" near the end of the main page. The disks can be created with my ImageDisk program which is available on the same page. NOTE that I just fixed the link to KAYPRO4.ZIP which was apparently broken - it should work now. Dave PS: If you would like to return the favor, please send me ImageDisk images of the Kaypro 4 (83) and Kaypro 10 boot disks as I do not have them yet. -- 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

20 years, 11 months

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looking for HP1650A boot disk image

by vax9000＠gmail.com

Hi, Sorry to bother you again. Last time I got a 1650B version 2.xx boot disk image by asking here. Now I need a 1650A version 1.xx boot disk image. I would appreciate for help here. Thank you. Yes, I did google job and I am still doing it. vax, 9000

20 years, 11 months

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New updates to the Little Orphan Tomy Tutor site

by spectre＠floodgap.com

New updates have been made to the Little Orphan Tomy Tutor site. The Tomy Tutor is an American home computer released ca. 1983 with strong hardware commonalities to the TI 99/4A. The Little Orphan focuses on the American Tomy Tutor, along with its Japanese cousins (the Pyuuta series), and offers a catalogue of hardware and software, programming information, technical documentation and links to related sites. Here's what's new or changed: - Pyuuta Jr. entry, featuring a complete description of this Japanese console version -- yes, I finally got one! Includes pictures, scans from the manual, and screen grabs of its surprisingly robust and user-friendly interface (for 1983, that is). - Stub entry for the Grandstand Tutors, the vanishingly rare UK variant. - New emulation section. This includes a special section on using the MESS Tomy Tutor driver (focused more towards the Mac, since I'm a Mac user, but with help for Windows users as well) and needed firmware and dumps, intended only for those with a legal right to the hardware, of course. Also includes TutorEm, the first true emulator (Windows-only), and incorporates Tutti as a museum piece (though people who do not own a Tomy Tutor can still use it to legally simulate the Tutor without ROMs). Alas, with this site release, I have chosen to officially freeze Tutti, the first Tomy Tutor simulator of any kind, at 0.3. It will still be left for download indefinitely because of its unique legal status, however. - Updated Incomplete Catalogue. Improved screenshots for many games, new shots for many more (including the believed-unreleased Gajigoji and Jack In The Box), and additional stub entries for hardware to come later. All of the American clone games have also been matched up to the Japanese originals. Also included links for the MSX and CoCo ports! - Additional Pyuuta screen shots. - Updated my personal trade list and the General and Pyuuta pages' histories, and made various custodial changes. Have fun! http://www.floodgap.com/retrobits/tomy/ / READY -- ---------------------------------- personal: http://www.armory.com/~spectre/ -- Cameron Kaiser, Floodgap Systems Ltd * So. Calif., USA * ckaiser at floodgap.com -- My opinions may have changed, but not the fact that I'm still right. -------

20 years, 11 months

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Computer Machinery Corporation?

by tomj＠wps.com

Up at Apex today, this is what I saw, part 1: http://wps.com/temp/CMC1.jpg http://wps.com/temp/CMC2.jpg http://wps.com/temp/CMC3.jpg It's a 12-bit machine, but big odd non-DEC-looking boards. It's 7400 TTL, with 1974 and 1973 dated-coded chips. Both machines are ruined. Sacked in mud, probably for a decade. Little rust though, looks like damp, then blown-in dust or silt. Boards are possibly recoverable. No memory or any accessories within 10 feet, I think they were buried under junk and just unearthed (Don is going through the yard). The switch register is 12 bits, and a LINK light, so I assume it's a pdp8 clone. Could be wrong of course.

20 years, 11 months

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ISO Datapoint 2200 service manuals

by aek＠bitsavers.org

As long as the subject of Datapoint has come up, I'd like to ask that people keep an eye out for 2200 and related service manuals. Several people are trying to restore them right now, and locating the service docs has been difficult. I would assume they're of the same detail as the one I have for the 3300 terminal.

20 years, 11 months

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Datapoint 3300 and DEC VT06 terminals

by ajp166＠bellatlantic.net

> >Subject: Datapoint 3300 and DEC VT06 terminals > From: "Michael Holley" <swtpc6800 at comcast.net> > Date: Sat, 17 Sep 2005 09:25:08 -0700 > To: <cctalk at classiccmp.org> > >I am doing a bit of research on Computer Terminal Corporation terminals and >I am looking for a picture of the Datapoint 3300. I understand that CTC >OEMed the terminal to many companies. I have found references to the VT06 >being the same as the Datapoint 3300. I also found a HP document that list >the HP 2600A as be compatible with the 3300. Can anyone clarify this. > >The designer of the SWTPC CT-1024 Terminal, Ed Colle, had worked at >Datapoint on video terminals. > >My area of interest is SWTPC 6800 computers and they have an interesting >connection with Datapoint. Both were located in San Antonio, Texas. When >SWTPC selected a computer to run their business they selected a Datapoint >2200. They liked the way the machine booted up and did not require a front >panel with switches. The SWTPC 6800 did not have front panel switches and >lights. It booted up with a monitor ROM. > >I have some interesting notes from Gary Kay, the designer of the SWTPC 6800 >here. (And a good photo of the Datapoint 2200) >http://www.swtpc.com/mholley/History/SWTPC_History.htm > >Michael Holley >From a pure economic point of view the front pannel was a very expensive addition and for the micro world it easily doubled (or more) the hardware for a base system. Additionally the hardware was both bulky (switches) and even in volume costly. SWTP by going with a rom monitor made a simpler machine with fewer parts. The cost to produce was lower and they also gained in that when roms, and other digital parts became cheaper they could pass the saving or reap the profit where switches and leds didn't drop in cost nearly as fast. There were a bunch of subtle evolutionary ideas in the SWTP systems that were widely adopted such as standard IO types and addresses. The effect being the user was less likely to have to configure the hardware and more likely to find new software [especially for similar but not identical systems] that were compatable. All of this was an outgrowth of how Motorola supported the 6800 vs Intel vision. The offset was with a front pannel troubleshooting a sick system was often easier but was an expensive artifact when not needed. Even though 6800 and 6502 based systems where not my forte' I studied them early on to see why they were so pervasive and largely successful. I feel that their break with the front pannel concept was a jump ahead for them. As a result the next system (ca1977) I'd gone with was a NS* horizon to get away from the switches followed closely with Netronics Explorer8085 for the resident rom monitor for S100 diagnostic abilities. Allison

20 years, 11 months

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Datapoint 3300

by aek＠bitsavers.org

found the binder.. The HP 2600A is a Datapoint 3300. There was even a brochure from Datapoint in the binder along with an HP brochure. FWIW, the HP 2615A is a Beehive Mini-Bee (also in the same binder)

20 years, 11 months

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Datapoint 3300

by aek＠bitsavers.org

The service manual for the 3300 in on bitsavers under datapoint A line drawing of the case is on page 3-41 I have a brochure and the service manual for the HP 2600. From memory, it looks the same. Will dig it out and scan it.

20 years, 11 months

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Datapoint 3300 and DEC VT06 terminals

by swtpc6800＠comcast.net

I am doing a bit of research on Computer Terminal Corporation terminals and I am looking for a picture of the Datapoint 3300. I understand that CTC OEMed the terminal to many companies. I have found references to the VT06 being the same as the Datapoint 3300. I also found a HP document that list the HP 2600A as be compatible with the 3300. Can anyone clarify this. The designer of the SWTPC CT-1024 Terminal, Ed Colle, had worked at Datapoint on video terminals. My area of interest is SWTPC 6800 computers and they have an interesting connection with Datapoint. Both were located in San Antonio, Texas. When SWTPC selected a computer to run their business they selected a Datapoint 2200. They liked the way the machine booted up and did not require a front panel with switches. The SWTPC 6800 did not have front panel switches and lights. It booted up with a monitor ROM. I have some interesting notes from Gary Kay, the designer of the SWTPC 6800 here. (And a good photo of the Datapoint 2200) http://www.swtpc.com/mholley/History/SWTPC_History.htm Michael Holley

20 years, 11 months

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CP/M archive to image 8" CP/M floppies

by shoppa_classiccmp＠trailing-edge.com

I used to be more on top of CP/M archives on the net, but I haven't kept up in the past few years. I have images of several hundred 8" CP/M software, including original distribution disks and a lot of stuff pirated in the 70's/early 80's. I also have maybe 100 more 8" floppies with CP/M related stuff that ought to be archived. A decade or two ago I would image these other floppies myself but I'm no longer with the free time to do these activities. The floppies I have already imaged are available on the net at ftp://ftp.trailing-edge.com/pub/cpm/ Most of the images reside in cpm.zip, in a format where each physical sector is mapped to the image, resulting in a 256256 byte image. For the floppies that are in CP/M file format, there are "*.cpmdir" files that list the individual files on the disk. There are also "*.index" files that say what was on the floppy label. Are there any takers for the remaining 100+ CP/M floppies? Tim.

20 years, 11 months

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Computer Machinery Corporation?

by ajp166＠bellatlantic.net

> >Subject: Re: Computer Machinery Corporation? > From: Vintage Computer Festival <vcf at siconic.com> > Date: Fri, 16 Sep 2005 21:37:01 -0700 (PDT) > To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> > >On Fri, 16 Sep 2005, Tom Jennings wrote: > >> Up at Apex today, this is what I saw, part 1: >> >> http://wps.com/temp/CMC1.jpg >> http://wps.com/temp/CMC2.jpg >> http://wps.com/temp/CMC3.jpg >> >> It's a 12-bit machine, but big odd non-DEC-looking boards. It's >> 7400 TTL, with 1974 and 1973 dated-coded chips. > >Hmm, front panel is definitely PDP-8-ish-looking. Worth saving regardless >of condition, if you think you might be able to restore it (certainly >possible with the right amount of time and inclination). > >-- > >Sellam Ismail Vintage Computer Festival It's definately a PDP-8 clone and actually pretty decent. Actually saw one in use back around '81. It would be fun getting one of those going again, wrong coast though. If memory serves they (DCC) also did a 16bit machine cloned after a different platform. Allison

20 years, 11 months

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looking for a book on monitor theory

by Watzman＠neo.rr.com

Re: > Purpose: the investigate the possibility of modifying > a recent multisync to sync down to TV frequencies. Eeek! ... Personally I think it would be easier to find an old TV-rate monitor and repair it, even if you have to wind replacement transformers yourself. But anyway..." This may not be all that hard. In fact, the early NEC "multisync" monitors DID this, as they came stock from the factory. CGA, MCGA, EGA and VGA. They even came with 9-pin to 15-pin adapters to deal with the two different connectors in use. I'm not sure that current monitors still do it in their "stock" configuration, BUT I WOULD NOT RULE OUT THE POSSIBILITY THAT SOME MIGHT.

20 years, 11 months

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PDP-11

by RMeenaks＠OLF.COM

Does anyone have any PDP8 equipment / machine they are willing to dispose (or sell) in the NY area??? A friend of mine is asking... Thanks, Ram > -----Original Message----- > From: Gordon JC Pearce [mailto:gordon at gjcp.net] > Sent: Friday, September 16, 2005 7:12 AM > To: On-Topic and Off-Topic Posts > Subject: Re: PDP-11 > > > Joe Maroney wrote: > > Greetings, > > > > I have two working PDP-11's(23+) that came out of a bowling > alley for > > sale. Here is a partial list of items from the systems: > > > > Where are they, and how much? > > Gordon. >

20 years, 11 months

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Computer Machinery Corporation?

by leeedavison＠yahoo.co.uk

>> http://wps.com/temp/CMC2.jpg > File Missing... It's here .. http://wps.com/temp/CMC-2.jpg Lee. . ___________________________________________________________ Yahoo! Messenger - NEW crystal clear PC to PC calling worldwide with voicemail http://uk.messenger.yahoo.com

20 years, 11 months

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Emulex SC02/C SMD Qbus controller

by hachti＠hachti.de

Hello folks, who has experience with the Emulex SC02/C controller? I tried the hardware format sequence - but it didn't work as expected. Perhaps my controller has a problem. Perhaps there is something set up wrong. And hardware formatting my disk packs is the way I hope to get these packs usable. In my documentation to the controller there's mentioned a diagnostic software - which I don't have. Does anybody have that? Best wishes, Philipp :-)

20 years, 11 months

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Computer Machinery Corporation?

by ajp166＠bellatlantic.net

> >Subject: Computer Machinery Corporation? > From: Tom Jennings <tomj at wps.com> > Date: Fri, 16 Sep 2005 15:14:14 -0700 (PDT) > To: "General Discussion: On-Topic Posts Only" <cctech at classiccmp.org> > >Up at Apex today, this is what I saw, part 1: > >http://wps.com/temp/CMC1.jpg >http://wps.com/temp/CMC2.jpg >http://wps.com/temp/CMC3.jpg > >It's a 12-bit machine, but big odd non-DEC-looking boards. It's >7400 TTL, with 1974 and 1973 dated-coded chips. > >Both machines are ruined. Sacked in mud, probably for a decade. >Little rust though, looks like damp, then blown-in dust or silt. >Boards are possibly recoverable. > >No memory or any accessories within 10 feet, I think they were >buried under junk and just unearthed (Don is going through the >yard). > >The switch register is 12 bits, and a LINK light, so I assume >it's a pdp8 clone. Could be wrong of course. Thats exactly what it is, a PDP-8e (work alike) clone. It's been a while since I'd seen one. A good washing and maybe new switches and I bet it's salvagable. Allison

20 years, 11 months

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Heathkit ET-3400 red filter material?

by ethan.dicks＠gmail.com

As I restore this ET-3400, I am curious if anyone knows what kind of filter material Heathkit provided that sticks to the TIL312 7-segment displays? Mine have 4 of 6 displays covered, and 2 displays bare. It seems to be some sort of adhesive red tape or film, but I have no idea what to use for a modern substitute. Thanks for any tips. -ethan

20 years, 11 months

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TSX Plus...

by lbickley＠bickleywest.com

> Lyle, I was wondering if you'd be opposed to me mirroring those files to the > classiccmp server (preferred), or at the least if you'd mind if I put a > non-mirrored copy there. > > Jay Thanks for the offer, but at this point, for legal reasons it's a bit "sticky". I have to have folks fill out a form where the state and "sign" that they understand the software is for hobbiest purposes only and that they will not use the software for commercial purposes, and will not distribute it, etc. In addition, I have to track the name and address of the person who downloaded the software. (There are still commercial users of TSX Plus). Cheers, Lyle -- Lyle Bickley Bickley Consulting West Inc. Mountain View, CA 94040 "Black holes are where God is dividing by zero"

20 years, 11 months

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PDP-11

by tradde＠excite.com

Where in the NY area? I have a second pdp-8a desk system, DecDataSystem 310 I think it is called. I am not sure what is in it, but it probably has 16k of core, could have a dual floppy, the processor and associated cards. It's heavy and big though. --- On Fri 09/16, Ram Meenakshisundaram < RMeenaks at olf.com > wrote: From: Ram Meenakshisundaram [mailto: RMeenaks at olf.com] To: cctalk at classiccmp.org Date: Fri, 16 Sep 2005 10:47:34 -0400 Subject: RE: PDP-11 Does anyone have any PDP8 equipment / machine they are willing to dispose (or sell) in the NY area??? A friend of mine is asking... Thanks, Ram > -----Original Message----- > From: Gordon JC Pearce [mailto:gordon at gjcp.net] > Sent: Friday, September 16, 2005 7:12 AM > To: On-Topic and Off-Topic Posts > Subject: Re: PDP-11 > > > Joe Maroney wrote: > > Greetings, > > > > I have two working PDP-11's(23+) that came out of a bowling > alley for > > sale. Here is a partial list of items from the systems: > > > > Where are they, and how much? > > Gordon. > _______________________________________________ Join Excite! - http://www.excite.com The most personalized portal on the Web!

20 years, 11 months

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Circuit Cellar TI-74 article

by dm561＠torfree.net

ORIGINAL MESSAGES: Date: Wed, 14 Sep 2005 16:37:23 -0400 From: "Cini, Richard" <Richard.Cini at wachovia.com> Subject: Circuit Cellar TI-74 article All: Does anyone have a copy of the April/May 1991 issue (Issue #20) of Circuit Cellar and can scan an article for me? There's an article on using the TI-74 BASICCALC for data acquisition and control. The article, written by Ed Vogel, appears beginning on page 41. TIA. Rich -------------------------------------------------------------------- >Would you believe, the Circuit Cellar folks do? ><http://www.circuitcellar.com/products/cd.asp> >-Frank McConnell --------------------------------------------------------------------- REPLY: Hi Rich: If that doesn't help, e-mail me off-list; I've got a pretty complete set of the early CC INKs, no prob scanning these 4 pages. mike

20 years, 11 months

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[Fwd: FS large lot of equipment]

by dmabry＠mich.com

Noticed this on a usenet group. Someone here might be interested. -------- Original Message -------- Subject: FS large lot of equipment Date: Mon, 5 Sep 2005 09:33:26 -0400 From: Markco <onthfly1 at hotmail.com> Newsgroups: comp.sys.zenith Hi; I have a huge collection of vintage equipment I want to sell. There is a collection of several years here. Make a reasonable offer, you pick up. It is just too much for me to deal with any more and I want a serious vintage collector take it and use it.I cannot sell and ship selectively. And there is just WAY too much to ship anyway.I need to sell it as ONE lot. Here is a small sketch of what I have. Because of the range of stuff, I apologize ahead for cross posting. Commodore...(2) c64,(1) C64C (2)c128,(2) vic20,(3) plus 4, and (1)c16 computers. (4) 1541 and(2) 1571 disk drives, cables etc. 1 c2N Datasette, 2 commodore Monitors, one working one in need of repair. There are diskettes, miscellaneous manuals.A number of Texas instruments 994a units (both Beige and Silver and Black) and accessories, including THE expansion box.A lot of program cartridges,disks, a tape drve unit, etc. Also multiple Tandy 1000 type units,A Tandy 2000, A PC Junior and monitor and accessories, Multiple Apple 2e, 2e+ and a number of early Macs including 2gs. A couple of Apple 2c units and the matching monitors.A couple of Lazer 128s, A couple of early Atari and coleco game systems and cartridges. An Atari 520ST with monitor,A complete coleco Adam and some spare parts. 2 Kaypros, an Osborne 1, A number of Various Zenith products including a couple of Z100s, EZ PCs and early portables. A Panasonic Partner.There is also a Digital Rainbow 100. There are a bunch of early notebook machines here too from various manufacturers. Also a number of early desktop systems, IBM PC 5150s, IBM ATs, Various other Early IBM machines, Zeniths, Compaqs, some portables, and other numerous desktops with names such as Sanyo, Hundai, Wang, -- clear up through 286s 386s 486s and early pentiums and AMD products. Also totes full of cards, drives, cables, parts etc. There are not monitors for each individual system, but there is a at least one monitor that will work with each. Some of the 8 bits use a TV and there is a TV switch unit or two here also. Ive got a few printers, enough to match and couple with most systems. There is also a LOT of software,disks,books,manuals, etc.You'll need to bring cartons :-) So, in short a bunch of equipment from the early 80s up through. 8 bit and up. Fully 99% of the equipment is operational. All has been stored here, dry and protected,where I live. Everything is as is, please. MAKE ME AN OFFER. Please email so we can make arrangements. You pick up, and I won't take personal checks, please. I live in the central Vermont area. email at: onthfly1 at hotmail.com

20 years, 11 months

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Apple II Mockingboard IIc Diskette

by nogard＠cishollywood.com

It actually plugs into the Apple //c serial's port I believe. I would have to pull it out of storage to confirm this. They didnt make very many as it wasnt compatible w/ the regular card based Mockingboard. Here is what I found on the web at: http://www.apple2.org/faq/FAQ.sndmusic04.html The later Mockingboard "D" had the same capabilities as the "C", but attached to the Apple IIc via the serial port. I have everything I need (box, sound device, and manual), except the disk. Would like to make it complete for my collection. -Chris Ryan

20 years, 11 months

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AT&T 3B2 help needed

by pat＠computer-refuge.org

An on-topic question just to mix things up around here. :) I hauled home a few AT&T 3B2/310s and AT&T 5620 terminals the other day, >from my usual surplus spot. While all of the 3B2s I've powered up so far seem to be good, except that none of them have a bootable hard disk. Does anyone have a utility floppy disk or set of install floppies they could make available? TIA, Pat -- Purdue University ITAP/RCAC --- http://www.rcac.purdue.edu/ The Computer Refuge --- http://computer-refuge.org

20 years, 11 months

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Wanted Commodore Equipment

by starmaster＠gmail.com

If anyone has any Commodore equipment the wish to get rid of, please let me know. I will pay shipping, but limited funds prevent much else. Thank you

20 years, 11 months

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Apple II Mockingboard IIc Diskette

by nogard＠cishollywood.com

HI everybody. Was wondering if somebody might be able to provide me a copy of this elusive disk. I happened upon the hardware a bit of time ago, but never got any software (the orignal utils disk). Was wondering if anybody might be able to provide it to me either via email (.dsk format), or send me a copy of the software (I'll pay for whatever it costs you to do this). Just keep in mind this is the utils disk for the Mockingboard //c, which is different than the utils disk that came w/ the regular mockingboard card. Thanks in advance, Chris Ryan nogard at cishollywood dot com

20 years, 11 months

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LSI - 11 cards and floppies for sale or trade.

by dan.stanger＠ieee.org

I have some 8" floppies and some cards for which I would like something. The floppies have some DECUS software on them except for one which is a RT11 V4 bootable diagnostic diskette. The cards are a printer interface M8027 and a M8028 Async line interface. Dan

20 years, 11 months

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PDP-11

by joe＠futratec.com

Greetings, I have two working PDP-11's(23+) that came out of a bowling alley for sale. Here is a partial list of items from the systems: PDP-11 Case CPU Board Memory Boards : 512 256 Controller Cards: Floppy and HD Communications boards MFM drive not working needs parts Floppy drive Both can be booted into RSX? I can provide screen shots I would like both systems to go as is in one sale. If you are interested contact me via email. I will be posting to eBay if no interest. Regards

20 years, 11 months

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Need an EDAC connector

by sdandrieu＠cattron-theimeg.com

I'm Searching for 8 connectors Edac P/N :341-080-500-210 Can you help me Thank You Serge d'Andrieu Senior Product Design Technician Tel: 514-908-1659 ext 63136 Fax: 514-908-1674 Cattron Theimeg Canada 3950 Hickmore St-Laurent H4T1K2 sdandrieu at cattron-theimeg.com

20 years, 11 months

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Various Macs Available

by bill＠timeguy.com

I've got several old Macs; Color Classic, plain Mac Classics, some older Apple monitors, and a couple of LaserWriters that are going to hit the recycling center unless someone wants them. Located in Lincoln Nebraska.

20 years, 11 months

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Suggestions for a mini?

by ajp166＠bellatlantic.net

Nah, A bug eyed sprite will do nicely. If all else fails a Cincinati Milichron 2000. Extremely rare and last I'd seen one was around '74. Allison > >Subject: Re: Suggestions for a mini? > From: Sridhar Ayengar <ploopster at gmail.com> > Date: Wed, 14 Sep 2005 22:50:48 -0400 > To: General Discussion: On-Topic and Off-Topic Posts <cctalk at classiccmp.org> > >Bob Shannon wrote: >> Cooper S, Hyper blue, with the sports package. > >I was thinking of saying something to the effect of "'66 Lambo Miura". > >Peace... Sridhar > >> >> ----- Original Message ----- From: "Tom Jennings" <tomj at wps.com> >> To: "General Discussion: On-Topic Posts Only" <cctech at classiccmp.org> >> Sent: Wednesday, September 14, 2005 9:39 PM >> Subject: Suggestions for a mini? >> >> >>> I'd like to solicit suggestions for a mini... >>> >>> I have this Nova 4, http://wps.com/NOVA4, but it's taking up too >>> much space, physical and psychic. I do want a mini-era machine, >>> and after some thought, I worked out what I'd like to get from >>> one. >>> >>> What I want is a basic stripped machine, with CRT console and >>> high-speed paper tape reader, and a low-speed punch (this last is >>> variable), and standlone utilities. It must have a front panel. >>> >>> I've used such on two platforms (Varian 622/i, Nova 1200) and it's >>> precisely the sort of (relatively) low-maintenance, high-geek >>> vintage experience I want. >>> >>> >>> So I'd like to trade my kilopound of DG gear, documentation, >>> tapes, fiche, etc for about 100 lbs of minicomputer. >>> >>> I'd prefer a DG Nova, General Automation, Varian, or other non-DEC >>> brand. (No offense to DECcies, I have a strong preference for off >>> the beaten path.) >>> >>> Even or especially one-off oddball or unpopular, or slow, or ugly >>> machines. Off models, step-cousin machines etc. Poorly optioned >>> (eg. math or fancy interfaces). >>> >>> Something like (but of course unlikely to be sucha popular model): >>> >>> Nova 1200 >>> 16 or 32k words >>> tty port >>> ptp/ptr port >>> lpt port or equiv >>> >>> I have generic high-speed paper tape readers, serial interface. I >>> don't care if peripheral brands match. >>> >>> It would be nice to have reel tape support. >>> >>> Any suggestions on interesting and obtainable machines? >>> >>> >> >>

20 years, 11 months

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DEC *Rainbow* stuph

by chrism3667＠yahoo.com

I recently obtained a Rainbow 100 with a gaggle of disks. The person had told me there was a complete or nearly so set of DECUS disks included. None of them imaged w/o errors, so I just became disgusted and gave up. Now we know of all the semi-compatible peecees, the Rainbow is probably the easiest to find software for. So where is the archive that has the DECUS stuph? And there is a set of DECUS newsletters on Ebay at this very moment. ______________________________________________________ Click here to donate to the Hurricane Katrina relief effort. http://store.yahoo.com/redcross-donate3/

20 years, 11 months

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Homebrew Circuit Boards: Methods? Supplies?

by trag＠io.com

>Date: Wed, 07 Sep 2005 12:58:30 -0400 >From: Roger Merchberger <zmerch at 30below.com> >Subject: Re: Homebrew Circuit Boards: Methods? Supplies? >>In fact, I have not been able to find precoated board (photoresist coated) >>in the .050" thickness. So I will either need to use a liquid photoresist >>or try a toner transfer system. > >I dunno about 0.050", but would the 1/32" thickness be close enough? >(That's 0.03125" thickness, if you can believe the Winders calcaputer >applet ;-) I am building SIMMs of various sorts, so the .047" - .053" requirement is firm. They must fit properly in the sockets. >>Do the developer and/or stripper usually turn out to be some commonly >>(cheaply) available chemical? I would prefer to avoid paying $6+ for a >>small bottle if I can avoid it. > >One kg of ammonium persulfate will make 4 liters of etchant, Developer and stripper are not etchant. After applying and exposing photoresist, one uses developer to remove the unexposed (or exposed for positive) photoresist without affecting the exposed (or unexposed) photoresist. After etching the excess copper away with an etchant, the polymerized photoresist is still present on the protected copper traces and must be removed using a stripper. So, when using a photoresist system, one needs developer, etchant and stripper. However, I suspect that the stripper, at least, may be some commonly available chemical such as acetone. And I believe that Tony mentioned that developer is usually just a strong alkalai. Thank you for the helpful information and for sharing your experiences. The supply source and books look interesting. Jeff Walther

20 years, 11 months

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HP Integral Modem -- trials and tribulations

by ard＠p850ug1.demon.co.uk

Does anyone know anything about using the HP Integral modem, or have software that's _known_ to work with it? Today I tried the modem board (HP 82915) in my Integral. The machines powers up OK, and the load_modem command finds it and loads the driver. But any attempt to access /dev/modem00 (using stty, kermit (on the super-utilities disk), etc) hangs the machine. I decieded to do some investigating. Probing points on the I/O cards is difficult with the machine assembled, and I don't have an extender board. There is, however, a way to get good access to the boards, but it involves a little work. Remove the rear cover and rear screening plate over the logic assembly. Unplug the 2 cables from the back of the floppy drive, remove the 3 screws and the drive itself. Remove the eject button and spring before you lose them. Undo the screws holding the logic chassis in place. Unplug the power cables, HPIB cable, expansion backplane cable and HP-HIL cable from the logic boards,Leave the other (printer) cables connected, move the logic chssis towards the top of the machine. Remove the HP-HIL grounding nut (through a hole in the expansion backplane), then the 4 screws holding the PSU/expansion box in place. Take that out Undo all the screws and nuts holding the cover on this unit. Move the cover out of the way Undo the nut on the backplane earthing bracket, remove the 4 screws, the bracket, and the backplane. Reassmble and refit the PSU box (you don't need all the screws), plug the cables back into the logic assembly (you can leave off the HPIB cable if you're not using any HPIB peripherals at the time), plug in the expansion backplane cable with the backplane hanging behind th PSU box. Fit a couple of the logic chassis screws. Refit the floppy drive, hold it in place with at least 1 of the top screws. Recoonect its cables. The machine will run like that, and you can plug the expansion board into the backplane and probe pins on it. Now, to understand the next bit, you need to know a little about the design of the modem. The address decoder is simple. It responds to the slot-specific chip select line from a decoder on the CPU board, and further decodes lines A6 and A5. It provides 4 chip-select signals A6, A5 = 00 : Command/ID register. Bits 4-7 (only) used on write, to select interrupt line, force and enable interrupts. On read, bits 4-7 are much the same, bits 0-3 are a fixed ID value that identifies this as a modem. A6, A5 = 01 : Select 8250 serial chip. Address lines A1-A3 select the 8 registers in this chip in the usual way A6, A5 = 10 or 11. One selects the modem Tx chip (16 internal registers selected by A1-A4), the other selects the modem Rx chip (also 16 registers, selected by A1-A4). Anyway, after probing pins on the address decoder circuit and repeateded powering down/up the machine and running load_modem, I discovered that the only 'register' that this command accesses is to read the ID register, presumably to find a modem board. It does not attempt to initialise the serial chip or the modem ICs. I have the customer diagnostic disk. This also finds a modem, and I can run the diagnostics on it. It pases. It also seems to write things to various registers on the modem board (in particular, at the end of the test, the 8250 is left set to 1200 baud, the baud_out pin (wired to the Rclk input as usual) is running at 19200Hx). And it energises the line relay a couple of times. Any thoughts? Do I have an obscure hardware problem or just not the right software? -tony

20 years, 11 months

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Freeman collection scam?

by aek＠bitsavers.org

Very odd listing. http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=5243310357 Someone with no feedback in Belgium claiming to be selling the Freeman collection for $1000 "It is with great regret that we place our PC Museum up for purchase. " "The Freeman PC Museum is offered for sale." "YOU CAN BUY THESE PRODUCTS FOR $ 1000 RIGHT NOW" ???

20 years, 11 months

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Dectapes on ebay germany

by jos.mar＠bluewin.ch

Just in case somebody needs them : ebay.de lists a box of 20 NOS dectapes ( not mine etc. etc.) Jos

20 years, 11 months

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Jim Austin's website has moved...

by julesrichardsonuk＠yahoo.co.uk

... to http://www.computermuseum.org.uk/ (for those of you not familiar with him, he's one of the few private UK collectors of big iron - he's got some fantastic machines) cheers Jules

20 years, 11 months

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Available: Xerox 645S Memorywriter

by bill＠timeguy.com

This looks like a huge typewriter with dual 5 1/4" floppies under the keyboard and a 9" or so (mono?) CRT on a pivot above the platen area. It turns on and responds to keypresses. The only thing I can get the CRT to show is "Insert INST Disk" when I press some of the buttons above the keyboard. Since I don't have any disks or docs, there's not much more I can figure out. If anyone would like this beast, it's in Lincoln NE.

20 years, 11 months

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Ardent "Titan" graphics supercomputer on Ebay...

by RMeenaks＠OLF.COM

http://cgi.ebay.com/80s-Ardent-Titan-graphics-supercomputer-orig-80K_W0QQite mZ5809156065QQcategoryZ80075QQrdZ1QQcmdZViewItem

20 years, 11 months

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Circuit Cellar TI-74 article

by Richard.Cini＠wachovia.com

Checked...mine doesn't have it. -----Original Message----- From: cctalk-bounces at classiccmp.org [mailto:cctalk-bounces at classiccmp.org] On Behalf Of Gil Carrick Sent: Thursday, September 15, 2005 9:05 AM To: 'General Discussion: On-Topic and Off-Topic Posts' Subject: RE: Circuit Cellar TI-74 article > -----Original Message----- > From: cctalk-bounces at classiccmp.org > [mailto:cctalk-bounces at classiccmp.org] On Behalf Of Cini, Richard > Sent: Thursday, September 15, 2005 6:49 AM > To: 'General Discussion: On-Topic and Off-Topic Posts' > Subject: RE: Circuit Cellar TI-74 article > > That's the second place I looked. I checked out Dave Tweed's > on-line archive first. However "free" is indeed cheaper than > $29 for the CD or $5 for the individual issue, from which I > only want that article. Have you considered libraries? Gil

20 years, 11 months

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Circuit Cellar TI-74 article

by Richard.Cini＠wachovia.com

That's the second place I looked. I checked out Dave Tweed's on-line archive first. However "free" is indeed cheaper than $29 for the CD or $5 for the individual issue, from which I only want that article. If no one has it, that I will break-down and purchase the CD. -----Original Message----- From: cctalk-bounces at classiccmp.org [mailto:cctalk-bounces at classiccmp.org] On Behalf Of Frank McConnell Sent: Thursday, September 15, 2005 1:02 AM To: cctalk at classiccmp.org Subject: Re: Circuit Cellar TI-74 article Richard Cini wrote: > Does anyone have a copy of the April/May 1991 issue (Issue #20) of Circuit > Cellar and can scan an article for me? There's an article on using the TI-74 > BASICCALC for data acquisition and control. The article, written by Ed > Vogel, appears beginning on page 41. Would you believe, the Circuit Cellar folks do? <http://www.circuitcellar.com/products/cd.asp> -Frank McConnell

20 years, 11 months

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OT: Rescued oily classics, was Re: Suggestions for a mini?

by ajp166＠bellatlantic.net

> >Subject: OT: Rescued oily classics, was Re: Suggestions for a mini? > From: Gordon JC Pearce <gordon at gjcp.net> > Date: Thu, 15 Sep 2005 12:07:35 +0100 > To: General Discussion: On-Topic and Off-Topic Posts <cctalk at classiccmp.org> > >Allison wrote: >> Nah, >> >> A bug eyed sprite will do nicely. >> > >There were a couple at a classic car garage that was closing down, >unfinished projects. More MGBs (chrome and rubber bumpers) than I've >ever seen altogether. I rescued a '74 Scimitar, and I wish I had the >money and space to rescue more. There were some cracking old cars >there, mostly UK and European, but one or two yank tanks. > >Sadly, most of them went to the fraggie. The NSU Ro80 I had my eye on >had gone before I could do anything about it. > >When was the last time *you* saw an Austin Atlantic? > >Gordon. It's been a whole lotta years. the owner was a 6'3" guy too. Allison

20 years, 11 months

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Arix 800 info wanted

by birs23＠zeelandnet.nl

Hi, Can anyone supply me with any information about the Arix 800 ? Any information about the company itself is also very much welcome! Looking for things like specs, first released, cpu, memory, origin etc Thanks! Stefan.

20 years, 11 months

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