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

by ddl＠danlan.com

Did you ever get this going? I'm looking at a different approach, reading the single density disks a track at a time in double density and then doing the data separation in software. Dan

21 years, 8 months

2
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Shure AMS8000 mixer.

by dwight.elvey＠amd.com

Hi If someone on the list replies to this ( or these ) fellows, I'd like to know if they get any response. I've tried to send to two of these types request in the past and gotten no response. ( they didn't seem to care that I had what they were requesting. ) In fact, I'd like to know if anyone that has sent to one of these off list request has ever found that they where actually talking to a real person. I'll have to admit that this particular request looks real. Still, from my past experience, I have my doubts. The two request that I replied to in the past also seemed as valid as this one. As you will note, I have no problem responding to those I recognize as being on the list or just responding to the list in general. These off list request tend to be about as close to form type request as the various Nigerian scam letters I receive. They're all a little different but all seem to have some common elements. Dwight >From: "Doc Shipley" <doc(a)mdrconsult.com> > >Dwight K. Elvey wrote: >>>From: Dan <cmonique(a)dodo.com.au> >>> >>>Chris, >>>I was told that you have some documents on the Shure AMS8000 mixer. >>>Is it possible for you to email me a copy of them? >>> >>>Kind regards >>> >>>Dan Allen >>> >> >> >> >> Hi >> Doesn't anyone find it just a little suspicious that we got >> two request for information for the same rare information? This >> seems to be the typical type of request that we see. I realize >> that it has been stated before that these may in fact be valid >> request from someone looking at the archives. I just don't >> believe it! I get the feeling that these are some kind of >> automatic ( with some intelligence ) address mining bots. > > It's a little odd, but I have a very time believing that even an >intelligent mining bot is going to turn out a request as detailed and >coherent as the other request for Shure info. I'd come closer to >believing that it's two techs at the same shop, or even the same guy >posting from work and then from home. > >> Am I just paranoid or does anyone else see what I see. > > Not gonna go there, Dwight. :) > > > Doc >

21 years, 8 months

2
1
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Various IBM PS/2 models available

by vcf＠siconic.com

Is anyone interested in IBM PS/2 models? I have a bunch of various models available if anyone wants them for $10 each plus shipping: Model 50 Model 50Z Model 35 SX ...and some others. I'd rather they go to someone rather than be scrapped, which is what's going to happen to them by the end of the week. So make an offer if you're interested. -- Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintage.org [ Old computing resources for business || Buy/Sell/Trade Vintage Computers ] [ and academia at www.VintageTech.com || at http://marketplace.vintage.org ]

21 years, 8 months

4
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H89 disk imaging

by dwight.elvey＠amd.com

>From: "Dan Lanciani" <ddl(a)danlan.com> > >Did you ever get this going? I'm looking at a different approach, reading >the single density disks a track at a time in double density and then doing >the data separation in software. > > Dan > Hi Dan Unless you know something I don't about disk formats, you can not read double single density format with a double density controller. It isn't that you'll just get 16 bits instead of 8 bits, things like sync makers will not work. In any case, I currently have a method of transferring hard sectored 40 track disk images to and from the following platforms to a PC running DOS: Z/H90 w/ serial card H89 w/ serial card H8 w/ H8-5 serial/cassette card H8 w/ H8-4 serial card ( Note: The H8's may be either an 8080 w/ PAM8 or a Z80 w/ XCON8 ). The DOS machine needs a serial port. My setup can also be used to bootstrap a machine that one has no access to disk with code on them. You only need the blank disks to copy the images to to bring up a system. Dwight ps I hope Dan is on our mail list because I no longer email directly to queries from off list. See my previous post.

21 years, 8 months

1
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Anyone have/know of Persci drives, parts

by Watzman＠neo.rr.com

Subject: Re: Anyone have/know of Persci drives, parts 1. There are no microcontrollers on the 270/277 series drives (I believe that there were on the later 299 drive) 2. The board has a huge amount of analog circuitry on it, both for the r/w head and the very complex servo system, and is not easy to troubleshoot. 3. None of the components on the board, including the 50 or so ICs, are socketed. No argument that the boards ultimately could be repaired, but it's not nearly as easy as your post suggests. Plus there are 4 other major but smaller boards on the drive in addition to the large main board. > I need some Persci 8" drives (model 270 or 277) and/or parts to repair them > for some systems. The part that I need most is the very large circuit board > on the right side of the drive. Anyone know of a source? [I'm sure that Are you actually missing this board? If not, then surely the existing one can be repaired to component level -- AFAIK the only custom part is an 8048 microcontroller, which presumably could be copied from one in a good drive (I don;t think the 8048 has any security features). -tony

21 years, 8 months

3
3
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Can anyone identify this portable?

by dave04a＠dunfield.com

I have received an email from a gentleman asking if I can identify a portable computer that he used to own. The machines ran DOS (MSDOS), and appears to have a standard PC/XT style keyboard layout. It is a "box" machine line the early IBM portable or Compaq portable. It has a monochrome screen (CRT), somewhat to left of center. Left of the screen is "open space". To the right of the screen are three 1/2 height 5.25" drive bays running horizontally (on this machine it has a floppy, a hard drive and what looks like a filler plate). Below the drive bays there are four "knobs" and what looks like it may be a switch. On the far right (beside the knobs) it looks like they keyboard cable comes out of a hole in the front panel. I have posted the picture he sent at: http://www.dunfield.com/pub/portable.jpg Anyone know what this is? Regards, Dave -------------------------------------------------------------------- mail2web - Check your email from the web at http://mail2web.com/ .

21 years, 8 months

7
7
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Old EPROM questions again, EPROM Programmer

by wolfgang＠eichberger.org

Hi all, first I want to thank you for your nice and fast help with my Commodore Pet ROM problem. Now I have a little question for my personal Interest: There were many Eprom Programmers back when the 2532 etc. were actual which were designed for popular homecomputers (I own one for my Pet too and know of many for C=64). Many of these devices were "homebrewed gear" or sold as kits. But after lots of time googling around I haven't found much stuff about this old eproms. Okay, I have at least a bunch of datasheets and some schematics where ex. the 2532 were used and learned a lot of early 1980's hardware basics :) But I could not find some schematics (and software) of Eprom programmers dedicated to this chips. My (maybe dumb) question: Does anyone have some schematics and software (would be great) for a little homebrewed Eprom Programmer which works with a standard PC parallel-port or ISA slot? This would be a great project for rainy winter days :) Best Regards, Wolfgang ==================================================== Ing. Wolfgang Eichberger cell.: +43-664-240-65-92 http://www.eichberger.org email: wolfgang(a)eichberger.org ---------------------------------------------------- Gruentalerstr. 24 - 4020 Linz ? AUSTRIA ====================================================

21 years, 8 months

2
1
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HP firmware

by dwight.elvey＠amd.com

Oops I'd forgot that he already had a place for them. These directories could use an index though :) Thanks Al Later Dwight >From: aek(a)spies.com > > >> Maybe Al can make a directory to hold ROM images. > >www.bitsavers.org/HP/ >

21 years, 8 months

1
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HP firmware

by aek＠spies.com

> Maybe Al can make a directory to hold ROM images. www.bitsavers.org/HP/

21 years, 8 months

1
0
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ants

by transit＠lerctr.org

> > A few years back when I was a medical student and calling in sick usually > meant failing a rotation, I got a bad case of bronchitis while on the ENT > surgery service and ran a fever of 102 F. Naturally, you have to be > unresponsive and on a ventilator to get off sick (and even then you may > have to make up the work), so I went in anyway after coughing up half a > lung's worth of brownish-red phlegm in the sink (and since I was ill and > fogged on cough medicine, I forgot to wash it down). > > That afternoon, I returned to find a trail of ants leading up to the > loogie in the sink, and a ring of dead ants around it who had tried to > eat the ball of sputum, failed, and died. Ants have been known to go after other bodily fluids as well, with varying results....

21 years, 8 months

1
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Dragon 64 fixing...

by julesrichardsonuk＠yahoo.co.uk

Finally found the five minutes to see if my Dragon 64 works. It doesn't. I get a white screen with a black border (which seems healthy enough), then in the centre of the screen a few random characters (some with inverse video). Occasionally after a reset the random characters don't stay together but occupy random locations toward the middle of the screen. I assume (having never seen an operational D32 or 64 before) that it should say "Dragon 64" or something, implying that character generation is screwed - but why the random characters should jump positions sometimes I don't know (unless the design of the reset circuitry is not very good) One obvious fault I found was that pin 6 of the 40 pin 6847 IC was broken and had been badly repaired in the past (such that I don't think the joint had held), but fixing that hasn't made a difference. The fact it was ever broken at all suggests that someone's been fiddling inside the machine though... I notice IC17 (a socketed 18 pin DIL) is missing - should it be? None of the DRAM is getting warm (suggesting failure), and the fact that there's something approaching normality on the display suggest that the power rails are OK and the CPU's at least operating. Of course presumably a RAM fault could quite easily explain random characters and locations though, but doesn't explain the stable white screen / black border (unless that's done in low level video hardware). Any ideas? If I can get this thing running then it's another potential for the CGE show this coming weekend. cheers, Jules

21 years, 8 months

6
14
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IBM pc/xt/at technical documentation...

by hoolihan＠pacbell.net

I have the following guides available, if there is any interest: 6025000 "Guide to Operations" 6280085 "Guide to Operations - Personal Computer XT" (Not sure if this is complete, but it has 2 diskettes and some options suppliments included) 6322511 "Guide to Operations - Personal Computer XT" (different than above...) 1502241 "Guide to Operations - Personal Computer AT" 1502491 "Installation and Setup" (2 charts included) 6280087 "Hardware Maintenance Service" (2 diskettes included) 6322508 "Technical Reference - Personal Computer XT and Portable Personal Computer" 6025005 "Technical Reference" 6280099 "Technical Reference - Personal Computer AT" All reasonable offers will be seriously considered. I believe these are complete (except where otherwise mentioned). I am willing to provide pictures and/or specific info (within reason) upon request. I prefer to sell as a set. thank you, Dan Hoolihan hoolihan(a)*NO*SPAM*pacbell.net

21 years, 8 months

1
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PAGING Tom Ponsford !

by waltje＠pdp11.nl

Tom, Pse contact me at (650) 641-3115. I'm in Tucson, but can't seem to get a hold of you !! Thanks all, Fred

21 years, 8 months

1
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Shure AMS8000 mixer.

by cmonique＠dodo.com.au

Chris, I was told that you have some documents on the Shure AMS8000 mixer. Is it possible for you to email me a copy of them? Kind regards Dan Allen

21 years, 8 months

1
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Still looking for.... (HP)

by jwest＠classiccmp.org

Anyone know where I might obtain a functional complete HP 2645 terminal? Willing to pay or trade.... I'm starting to go through the huge piles of HP I/O cards I have too, look for spares to be posted to the list soon. Jay West --- [This E-mail scanned for viruses by Declude Virus]

21 years, 8 months

3
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Shure Ams8000 mixer

by mrexa1＠optushome.com.au

Hi Chris. I stumbled across the website with your details and how you had some material on the Shure Ams8000 mixer. I was wondering if you would still happen to have a copy of the manual ore anything relating how to function this Mixer. Any help would be greatly appreciated. Thanx Moe

21 years, 8 months

1
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z8000 segment scheme question

by David.Kane＠aph.gov.au

The Z8000 segmented address scheme has two forms. The long form that you described uses two 16 bit values (registers or memory locations). The short form uses a single 16 bit value with the 7 bit segment number in bits 9-15 and an 8 bit offset into the segment in bits 1-8. Bit 16 of the first 16 bit value is a flag which indicates long or short segment address. This is important for memory addresses operands as the CPU can get an address word operand from memory, and then based on the flag bit can decide if the next word must be read to get the complete long address. In either case the segment address is located in the same place in either a short segment address or the first word of a long segmented address. David > -----Original Message----- > From: cctalk-bounces(a)classiccmp.org > [mailto:cctalk-bounces@classiccmp.org] On Behalf Of SHAUN RIPLEY > Sent: Monday, 26 July 2004 1:27 PM > To: cctalk(a)classiccmp.org > Subject: z8000 segment scheme question > > > I picked up one of my computer books today and read > that z8000 uses one 16 bit register to hold the 7 bit > segment number and one register to hold the 16 bit > offset. The strange thing is that the segment number > is hold in position of bit 9-14 other than the bottom > half of the first register. I goggled and found > complaint about this scheme but no one explained why > it was designed so. Could somebody on the list tell me why? > > > > __________________________________ > Do you Yahoo!? > Yahoo! Mail - 50x more storage than other providers! http://promotions.yahoo.com/new_mail

21 years, 8 months

1
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Need Commodore 1702 monitors

by vcf＠siconic.com

I need about half a dozen Commdore 1702 monitors for a display I'm helping a friend put together. It would be most convenient to just buy them outright since I use them quite a bit for exhibits and such. Does anyone have any they'd like to sell? -- Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintage.org [ Old computing resources for business || Buy/Sell/Trade Vintage Computers ] [ and academia at www.VintageTech.com || at http://marketplace.vintage.org ]

21 years, 8 months

1
0
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Booting real RT11 on a Heath H-11

by trash3＠splab.cas.neu.edu

doesn't the dilog controller have a bootstrap on it? Joe Heck

21 years, 8 months

2
1
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Booting real RT11 on a Heath H-11

by bob＠jfcl.com

I have a Heath H11A (LSI-11/2 CPU!) with the Heath WH-27 floppy diskette drives. It boots and runs HT11 (Heath's crippled version of RT11) just fine, but when I try to boot a real RT-11 v5 RX01 diskette it just halts. I thought that the WH-27 was RX01 compatible. Am I wrong, or is there some trick that Heath put in (maybe in the WH-27 boot ROMs?) to keep it from working? Thanks much, Bob Armstrong

21 years, 8 months

5
6
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IM6100 project plan options (was OSI 560Z: DEC PDP-8 clone using 6100 & 6502)

by bob＠jfcl.com

Hi Guys, I built the SBC6120 (a PDP-8/E clone based on the HD6120 chip, http://sbc6120.SpareTimeGizmos.com) but a bunch of the people in the SBC6120 group also have IM6100 chips, sometimes tubes of 'em. We've been having a little discussion about what to do with them on the SBC6120 mailing list, and when I heard about this thread I thought I'd open up the discussion. To start off, I can think of a couple of ways to go with the 6100: * Another machine with a real lights and switches front panel (a simplified SBC6120+FP6120). To save money we'd have to use cheap metal handle (e.g. "Altair style") toggle switches instead of paddle switches. There'd be no fancy silk screened faceplate like the SBC6120 - if we had any faceplate, it'd probably be some laser printed graphics sandwiched between two clear sheets of plastic (again, "Altair style"!). You might even have to drill your own faceplate - STG might not offer a precut one. * An Intercept Jr clone, including the octal keypad and octal display. Maybe even powered by 3 or 4 "D" cells like the original Intercept Jr. * A single board computer with an onboard EPROM to talk to a terminal using something like LSI-11 CODT. No lights, no switches. Basically a simplified (and less capable) SBC6120. All of the options would have 4K of memory and a console terminal interface. They'd run FOCAL-69, DECUS CHESS, or any other 4K paper tape software. No mass storage and no OS/8. Would anybody like to cast a vote? Does anybody have another idea? Thanks, Bob

21 years, 8 months

5
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Booting real RT11 on a Heath H-11

by mbg＠TheWorld.com

>> The only problem is that the boot ROMs, which are on the WH-27 card, >> don't know how to boot a RL02. Any ideas? > >I seem to remember that if you configure RT11 with the RL11 handler >(DL.SYS IIRC) and boot that (e.g. from RX01 floppies) you can then do a >BOOT /FOREIGN DL0: to boot the RLs. You can also do the following: Make sure you have a bootable RT volume with the DX.SYS and DL.SYS device drivers. Make a copy of it. For the copy (and I'm assuming it is mounted in drive 1 with the system in drive 0), issue the following command: COPY/BOOT:DL DX1:RT11SJ.SYS DX1: (or substitute the monitor filename for RT11SJ above). What this will do is create a diskette which, when booted, will actually boot the corresponding unit of the DL drives. If you place this in drive 0 and boot it, the system will be loaded and will run from DL0. Megan Gentry Former RT-11 Developer +--------------------------------+-------------------------------------+ | Megan Gentry, EMT/B, PP-ASEL,ST| email: mbg at world.std.com | | Member of Technical Staff | megan at savaje.com | | SavaJe Technologies, Inc. | (s/ at /@/) | | 100 Apollo Drive | URL: http://world.std.com/~mbg/ | | Chelmsford, MA 01824 | "pdp-11 programmer - some assembler | | (978) 256 6521 (DEC '77-'98) | required." - mbg KB1FCA | +--------------------------------+-------------------------------------+

21 years, 8 months

1
0
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Computer history -- visiting the UK

by lists＠microvax.org

The pegasus isn't run any more - I was down there last month and I asked about it and the perfect Straight-8 they had. They don't have anyone to run them. The girl on the info desk gave me the email address of the computer curator and said they'd love to have someone around that could show them off on the weekends - i've still got to chase that one up! alex/melt ---- Original Message ---- To: General Discussion: On-Topic and Off-Topic Posts <cctalk(a)classiccmp.org> From: John Honniball <coredump(a)gifford.co.uk> Date: Mon, 19 Jul 2004 19:38:55 +0100 Subject: Re: Computer history -- visiting the UK In the Science Museum, look out for the "Making of the Modern World" gallery on the ground floor, towards the back. I think you go through the Space gallery to get to it from the main entrance, after you pass the steam engines. There's an Apple I, the Pilot Ace, a Cray-1 and the Pegasus. Not sure if/when the Pegasus is got up and running. -- John Honniball coredump(a)gifford.co.uk

21 years, 8 months

3
2
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2.10bsd on an 18 bit '11?

by mbg＠theworld.com

As the designer and implementor of the Qbus and Unibus Ethernet handlers for RT, I can say that for the NU handler to work (with either DEUNA or DELUA), the version of RT you use must have the support for Unibus Map. If not, it won't work. I have to admit that I don't remember which version of RT was the first to release with Unibus Map support... (so many versions, they all sort of blur in memory over time...) Megan Gentry Former RT-11 Developer +--------------------------------+-------------------------------------+ | Megan Gentry, EMT/B, PP-ASEL,ST| email: mbg at world.std.com | | Member of Technical Staff | megan at savaje.com | | SavaJe Technologies, Inc. | (s/ at /@/) | | 100 Apollo Drive | URL: http://world.std.com/~mbg/ | | Chelmsford, MA 01824 | "pdp-11 programmer - some assembler | | (978) 256 6521 (DEC '77-'98) | required." - mbg KB1FCA | +--------------------------------+-------------------------------------+

21 years, 8 months

1
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The Future of Bletchley Park & the computer museum - comments wanted!

by julesrichardsonuk＠yahoo.co.uk

All, English Heritage spent a great deal of time recently surveying Bletchley Park (in particular buildings for which there was little information in the public domain, either due to the original information being lost or still classified) Said report and survey has now been published on the English Heritage website - see: http://tinyurl.com/45avu Importantly, comments are invited by English Heritage. Recently a response to this turned up in a newspaper local to the Park: http://tinyurl.com/4aqgo Some would say that currently the most "significant parts" of the site as projected to the public revolve solely around the Enigma, at the expense of everything else for which the Park has been known over the years. Lots of exhibits have already been scaled down and squeezed into much smaller premises; the military vehicles section is being demolished despite the part which such vehicles played in the war. The future of the Computer Museum and the rebuilt Colossus within H Block (and indeed the storage area within D Block) are very much uncertain, and a move to smaller premises is certainly not out of the question. Nobody seems to know the exact future of H Block but as it currently houses the museum and Colossus, and was the site of the world's first purpose-built computer room, to my mind it seems both the ideal location for its current occupants (with great scope for expansion!), plus a valuable bit of the UK's heritage which should not be lost, and also of great historical importance to the information age. (Note that as the whole site expanded during the war, D Block took on a lot of the work of the smaller Huts and so played a vital role, and C Block held an enormous Hollerith punched card section, so they are not without merit either; both currently lay almost derelict though) Realistically I'm not sure what anyone can do other than leave suitable comments for English Heritage about the importance which the Park played within the computing scene in order to ensure the survival of the huge amount of artifacts which we have. (Given the central location within the country my feeling is that it's also an ideal site for some form of national computer museum, but I don't know if that's relevant or not :-) I'm sure this will be of interest to UK residents on this list anyway, and quite possibly many of you further afield. (the less said about the way in which our current Government treats the heritage of this country the better, of course!) cheers, Jules

21 years, 8 months

1
0
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FS/FT : Fluke 9010A

by stephane.tsacas＠gmail.com

Hi all, I recently bought several Fluke 9010A. Some are running version 2, some are running version 3A which I beleive is the latest one. Is it easy to upgrade from v2 to v3 ? All I need is to copy the eproms ? They came without the "logic probe" can I build one myself ? Anything special about it ? I have something like 6 units, if someone is interested, drop me a mail. I'm looking for some pods: z80 at least. I'm in Paris, France, so the shipping cost can be an issue if you're not in Europe (except for the pods which are not so heavy). Thanks Stephane ps; I'm looking for someone on a 10 Mbit/s or faster internet access in Europe or US for a simple ftp throughput test.

21 years, 8 months

1
0
0 0

Pegasus (was: Re: Computer history -- visiting the UK)

by Adrian＠beovax.co.uk

> -----Original Message----- > From: cctalk-bounces(a)classiccmp.org > [mailto:cctalk-bounces@classiccmp.org] On Behalf Of Jules Richardson > Sent: 26 July 2004 16:26 > To: General Discussion: On-Topic and Off-Topic Posts > Subject: Pegasus (was: Re: Computer history -- visiting the UK) > > was generally occupying my brain the last few weeks (I'm sure > Witchy will be making images available; a great time was had I wondered if my message yesterday hadn't got out! Typical, you spend ages trying to post an update and it vanishes into that there ether. An initial page is up at http://www.binarydinosaurs.co.uk/Museum/cge-uk2004/cge.php with more pix to come later if the DSL is actually active in my cottage like they say it is! Cheers w

21 years, 8 months

1
0
0 0

RE 4205

by BIDDR7＠aol.com

SIR YOU STILL GOT THIS TERMINAL. I WILL BE INTERESTED BUYING IN ONE THANKS Mj cctalk(a)classiccmp.org

21 years, 8 months

1
0
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Curt Vendel on TV!

by wh.sudbrink＠verizon.net

Maybe I missed when this was mentioned before, but Curt was just on TV on "That 70's Home" on HGTV showing off his collection of PONG games. Looking at the HGTV web site, there's no telling when it will be repeated. Try to keep an eye for it. Bill

21 years, 8 months

2
1
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Motherboards

by cb＠mythtech.net

>Hi Chris > >I will pay all shipping costs to the UK for the motherboards, please advise >if this is possible. > >Brgds > >Steve I'm guessing maybe this is directed at me (hard to tell when it is sent to a mailing list). If it is to me, the 386 and 486 motherboards I had available are all long since gone. None left. Sorry. -chris <http://www.mythtech.net>

21 years, 8 months

1
0
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Just scored a CDI-1030

by cmcnabb＠gmail.com

The guy who surpluses old equipment in our warehouse gave me a call this morning. He had a CDI-1030 APL/ASCII portable acoustic thermal "teletypewriter" that someone had found in a closet, and wanted to know if I had a use for it. Upon physical inspection, the terminal is in great shape - no dents, dings, scratches, missing keys, etc. It is built into a very rugged (and heavy) samsonite suitcase and even had an unopened case of thermal paper with it. The Property ID numbers were no longer in the database, so it could not be surplussed through the normal channels (auction) since it could not be tracked. I could either take it or the surplus property guy would have to send it to the scrap yard. The decision was a no brainer, and I now have this old heavy thing sitting here in my cube. Now, how to explain this latest acquisition to a spouse who is already complaining about the amount of "junk" in the basement....

21 years, 8 months

2
1
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IBM 029 punch in Colorado

by vcf＠siconic.com

I've been speaking with Louis, the fellow who posted a message recently about an 029 punch in Colorado. He's a very terrific guy. Anyway, as much as I'd like to get an 029 punch for my archive, I don't have the space or the funds right now to acquire it. So that being said, is there anyone else in the Denver, Boulder, Fort Collins, Longmont, etc. area that can at least rescue this thing and hold it for someone (possibly me) for the short term? Louis said it was sitting in the rain but this thing ought to be able to take that just fine. Some parts will probably rust a little but that can be cleaned up with a little bit of labor on a nice Saturday afternoon. Please come forward if you can rescue this thing and/or want it. Louis can't promise that he can get the owner of the recycling facility to hold onto it for very long. -- Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintage.org [ Old computing resources for business || Buy/Sell/Trade Vintage Computers ] [ and academia at www.VintageTech.com || at http://marketplace.vintage.org ]

21 years, 8 months

2
2
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vax 11/750 help

by bert＠brothom.nl

Hi All, Today I was trying to get my VAX-11/750 to work. I figured out how the baudrate for the console terminal is set (and what it is set to), but I cannot find any of the other parameters, such as the number of databits, parity, and number of stopbits. Can anyone here tell how these are configured or, if they are hard-wired, to what value they are set? Also, are the schematics for this machine available online somewhere? I did search for it a few times, but never found it. If not, is there someone who can make them available? TIA, Bert

21 years, 8 months

3
2
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PR-68 schematics posted

by root＠parse.com

Hand reverse-engineered PR-68 paper tape reader schematics, and suggested PC parallel port interface design, are now available: http://www.parse.com/~museum/pdp-common/peripherals.html It's 1.5MB and PDF format. Cheers, -RK -- Robert Krten, PARSE Software Devices +1 613 599 8316. Realtime Systems Architecture, Consulting, Books and Training at www.parse.com Looking for Digital Equipment Corp. PDP-1 through PDP-15 minicomputers!

21 years, 8 months

1
0
0 0

Burroughs B1955

by aek＠spies.com

> OK, so Burroughs machines were not the easiest things on the eyes um... what about that B800 ? now, THATS ugly. Not quite as bad as a B90, but pretty durn ugly. http://www.osfn.org/ricm/c-b800.html

21 years, 8 months

4
4
0 0

IBM 9348-012

by doc＠mdrconsult.com

Anybody have the docs for this drive, or know where I can find them? 9348 Customer Installation Guide: SA21-9567 9348 Service Information: SY31-0697 are the two that I'm looking for. Thanks! Doc

21 years, 8 months

1
0
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z8000 segment scheme question

by vax3900＠yahoo.com

I picked up one of my computer books today and read that z8000 uses one 16 bit register to hold the 7 bit segment number and one register to hold the 16 bit offset. The strange thing is that the segment number is hold in position of bit 9-14 other than the bottom half of the first register. I goggled and found complaint about this scheme but no one explained why it was designed so. Could somebody on the list tell me why? __________________________________ Do you Yahoo!? Yahoo! Mail - 50x more storage than other providers! http://promotions.yahoo.com/new_mail

21 years, 8 months

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DEC AXV11 A/D Board Connector Pinout Wanted

by dj.taylor＠starpower.net

As you can tell from the heading I have one of these boards. In the DEC Micronotes there are some simple programs that show you how to acquire data with it, however I don't know how you connect the board to outside sources for sampling,etc. Anyone have info? I think I saw something in the Vax 4000/200 manuals that talked about a cabinet kit for this board - a UDIP - does this ring any bells? Doug

21 years, 8 months

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Other new finds: MOD COMP Maintenance Panels

by rigdonj＠cfl.rr.com

I forgot to mention these yesterday but I also found two Mod Comp Maintenance Panels. I'm not sure but it looks like these may have been made specificly for NASA. I bought them from KSC. I've posted pictures at <http://www.classiccmp.org/hp/modcomp/> Joe

21 years, 8 months

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cctalk Digest, Vol 11, Issue 47

by technobug＠comcast.net

On 24 Jul 2004 at 21:35:53 "David V. Corbin" <dvcorbin(a)optonline.net> wrote: > On the topic of unusual devices, does anyone have and spare SED [sound > emiting diode] or DED [dark emitting diode]. There were both > advertised in > EDN Magazine a long time ago [mid 1980's if I recall, note sure of the > exact > year, but it was probably sometime around April...] > > Cant seem to find any current manufacturers.... > > David. A while back when the semiconductor industry wasn't so tight-assed, National Semiconductor used to throw gotchas in their adds; one being the DED. They even published a data sheets for their various putons (which I have tucked away somewhere - if I locate them, I'll put them on line). I remember their comment that from the same production line they were able to establish a 100% yield of LEDs and DEDs... DEDs were available for purchase along with WOMs (write only memories) - and there were takers ;D CRC

21 years, 8 months

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ISC 8001 giveaway.

by sti＠pooq.com

I have an old ISC-8001 (Intelligent Systems Corp.) color graphics monitor to give away. Its currently just using up space in my basement, and I will gladly drive it to anyone in the Montreal area, or give it away to anyone who can figure out how to get it picked up from my house. For further information, you can look here: http://www.livejournal.com/users/swestrup/69465.html Oh, I should also point out that that image is not of my system (although mine looks just like it). My system doesn't have the disk drives. You can reply here or on the livejournal page, and I'll get your message. -- Stirling Westrup | Use of the Internet by this poster sti(a)pooq.com | is not to be construed as a tacit | endorsement of Western Technological | Civilization or its appurtenances.

21 years, 8 months

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HP 1000 manuals

by rigdonj＠cfl.rr.com

On one of my recent scrounging trips I found a couple of binders with manuals for the HP 1000. Here's a list: Binder 1. 2608A Line Printer Diagnostic Operator's Manual HP 2631A/G Printer Diagnostic Operator's Manual HP 2635A/39A Terminal Diagnostic (for 21xx series computers) High Speed Tape Reader/Punch Diagnostic Referrence Manual HP 12732A/12733A Flexible Disc Suubsystem Diagnostic Rerference Manual HP 2892A/12924A Card Reader Subsystem Diagnostic for HP 2100 Series Computers HP 79xx/13037 Disc Memory Diagnostic Reference manual 2607A Line Printer Diagnostic HP 9866A/12566B Line Printer and Interface Diagnostic Rerference Manual Reference Manual Magnetic Tape Subsystem Diagnostic for 7970B/C/E (9-track) 13181/13183 Interface Extended Memory Area On-Line Diagnostic Reference Manual HP 92900B Data Capture/Data Retrieal Termianl Subsystem Diagnostic Reference Manual HP 91711A Diagnostic and Verfication Package Reference Manual Binder 2. Manual and Software Record (a list of the docs and SW for one particular system) HP 1000 E-Series and F-Series Microprogramming Referrence Manual RTE-IV Assembler Reference Manual If anybody wants to borrow them and copy or scan them you're welcome to but I DO WANT THEM BACK!. I haven't checked them to see if they're on Al's site or not. The manuals are in fair condition. They've been stored in a damp area and the first few pages have some mildew and there's rust around the staples but other than that they're ok. Oh, the pages are loose leaf 8 1/2" x 11". Some of the books are stapled together but you're free to take them apart. Joe

21 years, 8 months

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AT&T catridge

by aw288＠osfn.org

I have a little white cartridge, roughly the same size as a Colecovision cart, that says "AT&T 510D BCT Intro/Training Cartridge, Issue 1:1985". I don't know what this goes with. Anyone? Speak up if you want this thing... William Donzelli aw288(a)osfn.org

21 years, 8 months

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AT&T catridge

by Sharp51482＠aol.com

These were for Terminals that AT&T made in the mid 80's. The terminals had a built in telephone set. There was a analog model for use with POTS lines and a digital model for use with System 75 and 85 PBX systems. If you have no use for it, I'd add it to my collection as I have several AT&T personal terminals 510A and D's. Another intresting feature of these sets was they were all equiupped with touch screens. In a message dated 7/25/04 11:36:18 AM, aw288(a)osfn.org writes: > I have a little white cartridge, roughly the same size as a Colecovision > cart, that says "AT&T 510D BCT Intro/Training Cartridge, Issue 1:1985". I > don't know what this goes with. Anyone? > > Speak up if you want this thing... > > William Donzelli > aw288(a)osfn.org >

21 years, 8 months

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AT&T Terminals

by Sharp51482＠aol.com

These were for Terminals that AT&T made in the mid 80's.? The terminals had a built in telephone set.? There was a analog model for use with POTS lines and a digital model for use with System 75 and 85 PBX systems.? If you have no use for it, I'd add it to my collection as I have several AT&T personal terminals 510A and D's.? Another intresting feature of these sets was they were all equiupped with touch screens.

21 years, 8 months

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Fwd: AT&T catridge

by Sharp51482＠aol.com

21 years, 8 months

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Off-Topic Fluke 4250 info wanted

by jpl15＠panix.com

This is off topic but within the 10-year rule - and mercifully brief. Having searched the usual and various places, I am now casting a broader net for the manual, or just the programming protocol / connector diagram - for a Fluke model 4250A Programmable Power Supply. Thnaks in avdance.. John

21 years, 8 months

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Early timesharing/BBS systems

by robertw63＠hotmail.com

Time-sharing services were pretty common in the early 70s when powerful computers were difficult to afford for even medium-sized companies. Dec pdp-10s were often used. The company I worked for in the UK at the start of the 70s used a computer bureau called TSL (Time Sharing Limited) who offered both an interactive Focal-like language and compiled Fortran. The terminal was a standard 10cps teletype with paper-tape reader/punch. Careful checking of input was needed because of the high costs involved. As an example I recall making a single error in a several thousand line circuit analysis program (we were designing early integrated circuits using it) and the resulting failed compilation cost £80 ($140) - quite a lot of cash in 1972! The username and password from those days is so burned into my brain that I still frequently use them today! As recently as 1981 I was managing a multi-terminal IC design department time-sharing over a muxed 2400b line to a CDC supercomputer for Spice analyses with the output on the noisiest drum printer I've ever sat beside! Thankfully an in-house Vax then appeared. Bob Adamson >-----Original Message----- >From: Richard A. Cini [mailto:rcini@optonline.net] >Sent: 17 July 2004 16:51 >To: CCTalk (E-mail) >Subject: Early timesharing/BBS systems > >Hello, all: > > I was at VCFe yesterday and I have to say that the speakers and >demonstrations were great. Sellam did a fantastic job and where the event >was located at the Sun facilities worked out perfectly. One demo that I >missed was the ARPANET dial-up simulation which wasn't there when I left >at >3:30. > > Anyway, this demo brings-up an interesting question. What kind of >dial-up >systems existed in the 70's before consumer-oriented services like >CompuServe? I remember the DowJones and CompuServe sign-up packs at >RadioShack in maybe 1979 (I joined CIS in 1988. I even remember my ID: >70153,3367). I also remember in high school (around 1983) using a >DECwriter >to dial into the timesharing computer (at 300 baud; I don't know the host >system) at one of the local universities. > > Just curious. Thanks. > >Rich > >Rich Cini >Collector of classic computers >Build Master for the Altair32 Emulation Project >Web site: http://highgate.comm.sfu.ca/~rcini/classiccmp/ >/************************************************************/ > > > _________________________________________________________________ It's fast, it's easy and it's free. Get MSN Messenger today! http://www.msn.co.uk/messenger

21 years, 8 months

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HP 7200A plotter

by wacarder＠usit.net

Ok, I'm going to surprise everyone and ask a question about a non-DEC item. Does anyone here have an HP 7200A plotter that they would like to get rid of? These were used in the 1970s. Ashley P.S. Even though it's a non-DEC thing, we used to have one connected to our PDP-11/40. I can't seem to find many references to these on Google or anywhere else.

21 years, 8 months

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CDC Front Panel Overlay?

by ohh＠drizzle.com

This came up in austin.forsale. It's not something I was looking for - I'm not even all that clear on what it is - but someone else may be interested. I've made their e-mail slightly less spambot-friendly as a public service. :) -O.- From: kichline aaaat hotmail dawt com (Chuck Kichline) Newsgroups: austin.forsale Date: 17 Jul 2004 10:43:36 -0700 Message-ID: <a3f7c20e.0407170943.61940806(a)posting.google.com> I just picked up a front panel overlay for a CDC computer - 15x6 matrix on mylar. Just some sort of test overlay, does anybody want it before it gets trashed? Chuck 218-0584

21 years, 8 months

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