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

by jules.richardson99＠gmail.com

Hi All, I got a lovely Televideo 970 terminal from another list-member over the weekend. Aside from some PSU capacitor issues, it needs a little TLC: 1) The EMI filter had gone open-circuit - it's one of those metal can types which is integrated with the IEC power input connector. Are these still obtainable anywhere? It seems like equipment these days just has the filtering directly on the PSU board, rather than as a separate module. I've just bypassed it for testing, but I don't want to leave it like that. 2) I have a faulty back-tab, left shift and return key (return's simply unresponsive, while the other two stick down). Do the keycaps on these terminals simply pull off, or is there some trick to removal? I did some experimental prying, but didn't want to try too hard and risk snapping the switch stem. I don't know if switches are still available, but worst-case I can swap the faulty ones with ones for some of the 'special' keys that I'm extremely unlikely to ever use. cheers Jules

8 years, 4 months

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Sun3 valuations?

by kevin.bowling＠kev009.com

I have some sun3/vme systems Several 3/60 3/260 sparcstation 4/370 SMD disk array for 3/260 The 3/260 and 4/370 have some oddball boards for data (cosys) and video acquisition (Aviv). I also have some spare sparcstation 10s and 20s. I haven't seen sun3 stuff for sale much. Does anyone know approximate valuations for tested systems? Regards, Kevin

8 years, 4 months

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Keyboard "enthusiasts"

by jnc＠mercury.lcs.mit.edu

> From: Chuck Guzis > Really, is this any worse than the gold bugs scrapping whole systems > for the prospective precious metal content? Well, the latter are presumably in it as a business, whereas it seems these people do it for 'fun'. Now there's an idea: perhaps we could convince them that pulling the wings off flies is a more entertaining hobby? Noel

8 years, 4 months

8
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ISO 9816 small keyboard

by aek＠bitsavers.org

I acquired a copy of CP/M-68K and am trying to pull together the parts for a 9816 to run it. I have Nimitz keyboards, but would like to find its little brother that matches the size of the 9816

8 years, 4 months

5
8
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Ethernet cable (Was: Sun3 valuations?)

by jnc＠mercury.lcs.mit.edu

> From: Paul Koning > The nominal OD of RG-8/U is .. within spec for Ethernet cable. Oh, OK. I was just used to the 10Mb cable we used being slightly larger than the 3Mb cable we used. > Also, Ethernet requires a solid inner conductor (for the tap) while > RG-8/U may come stranded. (Maybe only in some variants, I'm not sure.) As can be seen in the photos, the 3Mb stuff (at least, the stuff we used) was also solid. The diameter of the center was a little smaller on the 3Mb than on the 10Mb; .16mm versus .23mm; not sure if that was just happenstance, or what. Noel

8 years, 4 months

4
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Experimental Ethernet, XGP, etc.

by mark.kahrs＠gmail.com

A few notes: The experimental Ethernet speed was in fact 2.94 MHz: It's the Alto clock divided by 2. The Alto based printer was called "SLOT" -- Scanning Laser Output Terminal. It was plugged into the Alto backplane and presented itself as a hardware peripheral controlled by microcode (as was the case for all Alto I/O). It was an Alto task, of course. The vampire tap transceiver used RG-8 cable originally. That's before they added the lines around the cable and added additional shielding. The XGP was used at the Stanford AI Lab and was, as mentioned early, a dry process. And it did use a roll of paper.

8 years, 4 months

4
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Apollo Software

by jnc＠mercury.lcs.mit.edu

> From: Paul Koning > I[t] just dawned on me that the subject is Apollo the company bought by > HP, not Apollo the spacecraft. Oh well... Actually, that stuff has all been saved, and run under simulators; there's a very comprehensive site here: http://www.ibiblio.org/apollo/index.html which will keep anyone entertained for hours. (I have this bit set that at one point there was a 'project history' page, but I don't see it, looking quickly now.) Noel

8 years, 4 months

4
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SCSI Controller Hanging...

by harper＠secureoutcomes.net

Greetings to the List from the Snowy Rocky Mountains. Beautiful clear sunny day here at +9F :) The SCSI controller on the 68K development system (VMEbus) that I have cobbled together occasionally hangs after I reset one of the processor boards (there are four MVME177-005 68060 boards in the VME rack). The hang then happens when my software touches the SCSI drives via the ROM'd 68K/Bug I/O primitives and the hang will not go away even after another reset until I cycle power. I have never before dealt with SCSI as a programmer - does this sound like something is configured incorrectly? There is not much to configure. I point out that I am not certain that I have the termination resistors correct. Thoughts? I appreciate any advice. Regards, Jack Evergreen Colorado ---------------------------------------------------------------------------------- Jack Harper, President Secure Outcomes Inc 2942 Evergreen Parkway, Suite 300 Evergreen, Colorado 80439 USA 303.670.8375 303.670.3750 (fax) http://www.secureoutcomes.net for Product Info.

8 years, 4 months

4
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SCSI

by harper＠secureoutcomes.net

Jim - I appreciate the great SCSI information. The hang is not at all frequent. I do resets many times during a programming session as my "marvelous" code hangs or otherwise goes crazy and into thew weeds :) and I only see a SCSI hang every few days. Regards, Jack At 10:28 AM 1/23/2018, jim stephens wrote: >Scsi controllers are very sensitive to resets >and getting out of step with the state of the bus the initiators they control. > >Scsi can have multiple initiators, and you may >of course have a system which acts as a target, >but i'm guessing since you said drives, you have >a pretty common setup, a system with drives >attached, where the scsi device on your system is the initiator. > >One thing that throws off scsi is to do a reset >which comes from somewhere the initiator doesn't >know about.? many are not friendly when that >happens and just end up hung up.? Reset tells >all the devices to stand down, and it is >expected that an enumeration of the bus will >take place by all the initiator(s). > >That may have happened if you reset your other >processors or did something which affected the >initiator.? And the resets on most systems >usually hit all components, so I'd be surprised >if only the one processor was affected. > >thanks >Jim ---------------------------------------------------------------------------------- Jack Harper, President Secure Outcomes Inc 2942 Evergreen Parkway, Suite 300 Evergreen, Colorado 80439 USA 303.670.8375 303.670.3750 (fax) http://www.secureoutcomes.net for Product Info.

8 years, 4 months

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SCSI Controller Hanging...

by harper＠secureoutcomes.net

Hello Bill - Yes, there are two 4GB (32-bit addressing) SCSI drives on the system and they do have different drive numbers. I will double check the SCSI termination resistor things. Motorola documentation is very sparse on this - "attach the termination resistor" - nothing on exactly where or what the resistor thing looks like. I am far stronger in software than hardware. I appreciate the adive. Regards, Jack Evergreen, Colorado At 09:47 AM 1/23/2018, william degnan wrote: >On Tue, Jan 23, 2018 at 11:33 AM, Jack Harper >via cctalk <<mailto:cctalk at classiccmp.org>cctalk at classiccmp.org> wrote: > >Greetings to the List from the Snowy Rocky Mountains. > >Beautiful clear sunny day here at +9F :) > >The SCSI controller on the 68K development >system (VMEbus) that I have cobbled together >occasionally hangs after I reset one of the >processor boards (there are four MVME177-005 68060 boards in the VME rack). > >The hang then happens when my software touches >the SCSI drives via the ROM'd 68K/Bug I/O >primitives and the hang will not go away even >after another reset until I cycle power. > >I have never before dealt with SCSI as a >programmer - does this sound like something is configured incorrectly? > >There is not much to configure. > >I point out that I am not certain that I have >the termination resistors correct. > > >Thoughts? > >I appreciate any advice. > > >Regards, > >Jack >Evergreen Colorado > > > >Jack, >Yes, two things that I'd be checking >1) Make sure all drives are assigned a different number >2) Make sure you have termination somewhere. > >Depending on the OS there are commands to >display the scsi devices attached, as the OS sees them. > >Bill? ---------------------------------------------------------------------------------- Jack Harper, President Secure Outcomes Inc 2942 Evergreen Parkway, Suite 300 Evergreen, Colorado 80439 USA 303.670.8375 303.670.3750 (fax) http://www.secureoutcomes.net for Product Info.

8 years, 4 months

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Apollo Software

by jnc＠mercury.lcs.mit.edu

> From: Daniel Seagraves > The Saturn software, which is what actually flew from Earth to the > moon, was lost. You mean the Instrumentation Unit on top of the S-IVB stage? That was discarded when the S-IVB and CSM separated shortly after leaving Earth orbit (about 6 hours after launch), so I'm not sure it's accurate to say it's "what actually flew from Earth to the moon". Yes, it put the CSM on the injection orbit, but... A very cool computer (the first one to have all its critical components triplicated for reliabilty, I gather), and yes, it would be nice to have its software too. Noel

8 years, 4 months

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VCF PNW 2018 - less than three weeks away!

by mbbrutman＠brutman.com

Come join us in Seattle on February 10th and 11th for the first VCF PNW. We have 20 exhibits, six speakers, and a panel discussion planned. There will be a consignment area for buying and selling vintage gear, and of course there is an entire museum (Living Computers:Museum+Labs) to check out as well. The show is free with museum admission. More information can be found at https://goo.gl/AUoLU2 . You can also email questions to me. And lastly, we need your help - spread the word! Thanks, Mike

8 years, 4 months

2
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MY COMPUTER LIKES ME when i speak in BASIC.

by mattislind＠gmail.com

I scanned a nice little booklet I found in my fathers stuff. "MY COMPUTER LIKES ME when i speak in BASIC" by Bob Albrecht. http://www.datormuseum.se/documentation-software/my-computer-likes If someone feel like they can straighten it up, please do! I didn't feel like ripping it apart to have it scanned so it was troublesome to scan it perfectly in my page scanner.

8 years, 4 months

5
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Sun3 valuations?

by jnc＠mercury.lcs.mit.edu

So did we ever get an answer to the original question (the value of a Sun3)? All I saw was 'you'd have to pay to recycle them'. > From: Grant Taylor >> Before that, if you were lucky enough to be at Stanford, MIT, or CMU, >> you could use the Dover and Altos that were part of Xerox's University >> Grant Program. > What made the Dover and Altos special in this context? Sorry, I don't understand the question. (I assume you're not simply asking 'what made the Dover and Altos special'.) Which context? (As in 'what's the connection between the Sun3 query, and Dovers and Altos'? If so, I think it was just thread drift via the laser printers.) > This is the 2nd time I've heard about 3 Mbps Ethernet. That's the 'original' Ethernet; PARC did the 3Mbit one first, and the 10 Mbit one came along quite a few years later. I'm trying to remember what kind of cable it used; IIRC it was black coax, with a woven shield (i.e. not solid like CATV), not quite as large in diameter as the yellow 10Mbit stuff. To connect up to it, one clamped on a connector thingy, which had a threaded hole in it over the cable; one then screwed in a cylindrical cutter which made a hole through the shield, and one then screwed in a transceiver (which was a box about 2"x2"x4", IIRC). Hopefully someone has a picture somewhere? Noel

8 years, 4 months

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Sun3 valuations?

by jnc＠mercury.lcs.mit.edu

> I just found a piece, I'll put up a photo. Here ya go: http://gunkies.org/wiki/File:3MegEthernetCable.jpg http://gunkies.org/wiki/File:10MegEthernetCable.jpg I should have put a ruler in, for scale. The 3M is about 2/3 of the thickness of the 10M. The center conductor is about 2mm - pretty heavy! > From: Guy Sotomayor Jr > The XGP printed on roll paper. It was a laser type process Plain paper? Well, my memory of it being thermal paper could easily be wrong; it's been a _long_ time, and I didn't use it much. Noel

8 years, 4 months

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Sun3 valuations?

by jnc＠mercury.lcs.mit.edu

> From: Grant Taylor > What makes the copies of papers printed on them special? Well, the Dover was the first device (that I know of) that could print _very_ high-quality graphical/multi-font output, and on ordinary paper. It was also pretty darned fast - a couple of seconds per sheet, IIRC. The whole package just blew us all away (I was a MIT when we got ours). There was a prior device (from quite a few years before) called a 'Xerox Graphics Printer', but i) IIRC it printed on thermal paper (think poor-quality thermal fax paper); ii) the resolution was nothing like as high as that of the Dover (which was, IIRC, in the 100's of DPIs - which it needed to produce the very-high quality printout with type-faces), and iii) it was quite slow. What they did with the Dover was take a high-end Xerox copier (one of the things the size of a couple of desks),and rip out the optical front end (which copied an image of the page being copied, onto the drum), and replaced it with a scanning laser that was fed an amplitude-controlling bit-stream >from an interface card in the Alto. >> That's the 'original' Ethernet; PARC did the 3Mbit one first, and the >> 10 Mbit one came along quite a few years later. > I assume this has something to do with the Digital / Intel / Xerox as > in the DIX connector. Right, a couple of years later Xerox, DEC and Intel did a consortium to make Ethernet widely available, and produced the 10Mbit version. Technically, it was little different from the 3MBit version. The low-level packet format was different (because of the higher speed, and larger maximum size), and the addresses used the later PARC thinking (UID's for interfaces), but those were not major changes. >> I'm trying to remember what kind of cable it used > That sounds like typical Radio Grade cable. Yeah, I just found a piece, I'll put up a photo. > I'm not quite sure what you mean by "solid like CATV". The CATV that used a heavy foil ground layer. > That sounds like a description of what I've heard called a "Vampire > Tap". My understanding is that's the poor way to connect to (what is > effectively) the Ethernet bus. Vampire taps worked fine on 3MB Ethernet. As the speeds went up, less so. > I suspect that Wikipedia's article on 10Base5 has some decent pictures: Nothing of the 3MB, and it doesn't show how the clamp-on connector and vampire worked. Noel

8 years, 4 months

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Help identifying IC

by derschjo＠gmail.com

Hi all -- I picked up this little toy at VCF West last summer: https://1drv.ms/i/s!Aqb36sqnCIfMouYd0HV0ZThE3FnE_Q As far as I can tell, it's supposed to be a clock and I assume it was a kit -- this one was definitely hand-assembled.? It's powered by two AA's (apparently, there are no markings), has a 4 digit LED display, and at the moment it does not work at all. Can't find anything about this item at all.? At the moment I'm curious what the 28-pin IC at the top is -- there are no markings of any kind anywhere on the chip.? It has an interesting construction -- blue plastic on both sides with a metal cap over the die.? The two other ICs are RCA 3081 and RCA 3082 which are simply transistor arrays for driving the 4-digit LED display.? I assume the 28-pin IC is a simple microcontroller with built-in ROM, or perhaps it's a device specifically designed to run a digital clock.? Whatever it is, I'd love to know what it does so I can debug this thing and possibly source a replacement. I realize this is not a lot of information to go on, but on the off-chance someone's seen something like this before I figured I'd give it a go... Thanks, Josh

8 years, 4 months

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question on hp9000/310

by w2hx＠w2hx.com

Hello friends, I am totally ignorant about hp9000 machines. I am considering acquiring this machine for fun and learning about the 9000. It has a 9153A and 9134D with other accessories. The system currently boots up to BASIC 4.0 I have read that this machine can also support HP/UX. Can anyone advise if HP/UX can be installed on such a machine? Perhaps using internal drive for HP/UX and the external hard drive to boot to BASIC? Both hard drives have BASIC 4.0 installed. What would be involved to install HP/UX? Thanks very much Eugene

8 years, 4 months

3
2
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3420 tape drive

by npmungai＠gmail.com

Hey. Am looking for the above tape to read and covert some old tapes from ebcidic to ASCII format. How can I get the tapes in Kenya. Regards Paul Njau

8 years, 4 months

2
1
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ISO: TIPL757A transistor or equivalent

by derschjo＠gmail.com

Hi all -- I'm in the middle of repairing a console for a Symbolics 3640. This uses the earlier Phillips-based monitor and it employs a TIPL757A transistor in the deflection circuit. The one in mine is toast and I haven't been able to find a suitable replacement. The datasheet (or at least a page of it) is here: http://pdf1.alldatasheet.com/datasheet-pdf/view/108034/TI/TIPL757.html The base current rating seems to be important in this application; I tried replacing it with a BUX48 (which meets the other specs but only has a 4A continuous base current rating) and it blew in a few minutes. I haven't found a source of 757As, and I haven't found another TO-3 transistor that matches its specifications. If anyone's sitting on a pile of these, knows a good source for them, or knows of a transistor to substitute, please let me know. Thanks! Josh

8 years, 4 months

1
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What's this machine?

by anders.k.nelson＠gmail.com

Bouncing from the vintage microcontrollers Facebook page: https://m.facebook.com/groups/1233645553343772?view=permalink&id=1867447333… Can anyone help identify this machine?: https://twitter.com/StarringTheComp/status/955244079163564032 =] -- Anders Nelson +1 (517) 775-6129 www.erogear.com

8 years, 4 months

1
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GT-40 etc.

by jnc＠mercury.lcs.mit.edu

> From: Al Kossow > vt11 is integrated into the 11/05 backplane on the gt40 Right (although I had forgotten that); I listed the 11/05 separately since I do have data on how much they've been going for - in an attempt to roughly value the lot. The GT40, however, no idea. (I recall one was for sale on eBay for many thousands, but I don't know if that was ever sold, and how much for.) Noel

8 years, 4 months

8
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Adaptec 1522A SCSI Support (was re: New TestFDC Results Registry)

by silent700＠gmail.com

On Thu, Jan 18, 2018 at 6:58 PM, Adrian Graham via cctalk <cctalk at classiccmp.org> wrote: > I could, but I guess by the time I?ve sourced a replacement I might as well have bought an AHA-1522A instead, I have a couple of scouts out looking for them as we speak :) The 1522A is a full pass for TESTFDC. Has anyone using one of these cards made use of the SCSI function? It has a Centronics 50 connector, which isn't terribly useful unless you've got the right cable, but if you're building an all-in-one imaging machine, it might be handy to have SCSI capability as well. It seems the driver hasn't been in Linux for quite a few versions. Not sure about the BSDs.

8 years, 4 months

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Even old accounting software needs love and rescuing from oblivion

by terry＠webweavers.co.nz

Hi folks, On the weekend I rescued some old software. It gave me an excuse to get my first micro out of its box and stretch its legs. Accounting packages hardly set the world alight but being a Dick Smith release for the System 80, it does have its place in Australasian computer history. Anyway, if anyone is interested, here is the URL. http://www.classic-computers.org.nz/blog/2018-01-12-rescuing-more-dick-smit… Terry (Tez)

8 years, 4 months

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A walk through of my legendary warehouse sale in the 1990s.

by innfoclassics＠gmail.com

This is a digitized HI8 tape of a walk through of an early Warehouse Sale I ran from 1995 to 1998. There is a small sections of collectable computers in the middle of the tape with a few others scattered through the sale. Fond memories and hard to believe it was 22 years ago. https://youtu.be/8Pme8mZU-Xc -- Paxton Hoag Astoria, OR USA <http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_cam…> Virus-free. www.avg.com <http://www.avg.com/email-signature?utm_medium=email&utm_source=link&utm_cam…> <#DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2>

8 years, 4 months

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OT - Has anyone seen / have a copy of computer lore story about a DC consolidation?

by cctalk＠gtaylor.tnetconsulting.net

Sorry for the off topic post. I'm hoping that someone here might have seen a (what I consider to be) a computer lore type story about a contractor that was brought in part way through a project to consolidate three DCs into one. - In the end he managed to do it early and under budget. The kicker is that they quite literally physically moved and re-connected everything the way that it was. Meaning that there were still WAN circuits (local only of course) between equipment that was previously in different DCs. I would like to find a copy of this story and save it in my archive. But I've not been able to do so. Thus I'm asking a wider audience to see if anyone might be able to give me a pointer. -- Grant. . . . unix || die

8 years, 4 months

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Power plugs and cables for the IBM 3420

by curiousmarc3＠gmail.com

Can any of you identify which power plugs models these are. They are on my IBM 3420 tapes and connect to the IBM 3803 controller, 3 phase: https://www.dropbox.com/s/ftfpg0owdvb173u/IMG_5066.JPG?dl=0 https://www.dropbox.com/s/uyzpwcp6sjkvrpf/IMG_5067.JPG?dl=0 These are for the large vacuum column tapes seen in this video here: https://youtu.be/yaPVkw8dnaI And if anyone knows where to get these power cables... Marc

8 years, 4 months

2
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Early 12-inch WORM disk drives and media

by t.gardner＠computer.org

I'm pulling together a timeline of optical computer data storage and having fun with the early ones. A copy of Rothchild's Optical Memory Report, From the early 80's would be appreciated - hardcopies are at the CHM so maybe I'll have to drive over there I'm told by a reliable source and am trying to confirm that Philips and Toshiba were first circa 1980 so can anyone identify and provide any details about any 12-inch WORM disk drives and media that were shipped by either around 1980. FWIW the earliest WORM I can identify is the OSI Laserdrive 1200 which shipped in 1983. OSI was a joint venture of Philips and CDC and in turn a successor to their earlier joint ventures, Optical Media Laboratory in Holland and Optical Peripherals Laboratory in Colorado. So the Laserdrive might be a rebadged or enhanced version of the earlier Philips product. I have no clue as to any early Toshiba WORM FWIW, in 1981 Matsushita demonstrated of a 200 mm diameter WORM disk with a capacity of 15,000 still pictures but this wasn't a data disk. Not clear when and if it shipped as a product. [source: http://www.wtec.org/loyola/opto/ad_matsu.htm ] There is also an indication that Thompson CF also had an optical data storage system circa 1981 but I can find nothing about it. Any recollections and all literature would be appreciated. Tom

8 years, 4 months

1
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GT-40 etc.

by jnc＠mercury.lcs.mit.edu

> From: Kyle Owen > A tenth the price of the Twiggy Lisa makes that auction look almost > affordable! Final price was $5600. Yeah, whoever bought that got, IMO, a pretty good deal (as I predicted). It's a fair amount of money, but they got a _ton_ of stuff (probably literally :-). I mean, look what's included (with rough guesses as the value): $600 H960 rack $600 H960 rack $400 RK05 drive $600? RK03 drive $700? RK11-C controller $2000 PDP-8/F $2000 PDP-11/05 $?? GT40 display hardware $400 BA11-F with ?? inside %? Teletype ------ $7300 Some of the things are so rare (e.g. the RK03 and RK11-C) I don't have any comparables (RK11-D's go for $500 or so, FWTW); and on the GT40 I have no idea whatsoever. (This one doesn't have the usual GT40 display, but a rack-mounted VRxx?) Still, it's pretty clear that whoever bought this got a deal. And I haven't even included the packs ($30 each, another $900 or so), all the Grass analog gear, etc, etc. Noel

8 years, 4 months

2
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New TestFDC Results Registry

by jnc＠mercury.lcs.mit.edu

> From: Jonathan > if someone wants to sticky this (here or in other forums), I think this > would be a valuable resource for anyone wanting to use ImageDisk on > non-PC formats. How about someone doing an ImageDisk page on the Computer History Wiki; we could include an 'External link' to the new registry (and also the original one, etc). Noel

8 years, 4 months

1
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GT-40 etc.

by aek＠bitsavers.org

this is going to go for an insane amt of money https://www.ebay.com/itm/232628720694

8 years, 4 months

7
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Yet More S-100 stuff from Sellam's collection listed for sale

by sellam.ismail＠gmail.com

Hello again, Folks! I've listed yet another batch of S-100 goodies: http://www.vcfed.org/forum/showthread.php?61192-Sellam-s-S-100-Hardware-Sof… The latest batch includes a new Processor Technology kit, a BYT-8 front panel, a Commodore PET to S-100 interface board, a couple Wameco backplanes, a gaggle of Cromemco boards, and much more. Thanks! Sellam

8 years, 4 months

2
1
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Reviving ARPAnet

by jnc＠mercury.lcs.mit.edu

> From: Lars Brinkhoff > - Multics NCP has not been located. Really? It wasn't in the code dump at MIT? > - Unix? For V6 NCP, we have several versions: http://minnie.tuhs.org/cgi-bin/utree.pl?file=SRI-NOSC http://minnie.tuhs.org/cgi-bin/utree.pl?file=BBN-V6 (The latter includes NCP as well as TCP/IP.) > - VMS? I'm not sure a VMS machine was ever on the NCP ARPANet? Hmm, looking at a 'Hosts' table from 3-Mar-82 (NCP was only turned off in January of '83), I see two machines with "xxx-VMS"names, and directly connected to IMPs, _but_ no OS is given. So maybe they were front-ended somehow? > Does anyone have any host tables between 1975 and 1981? There's a July '77 one at the end of this: http://www.walden-family.com/dave/archive/bbn-tip-man.txt and a January '79 copy of the MIT-SAIL one at the end here: https://tools.ietf.org/rfc/rfc752.txt Starting around '82, they are more common: stick a phrase from the header of the above into the "this exact word or phrase" box in Google's Advanced Search, and you get things like this: http://pdp-10.trailing-edge.com/BB-H137D-BM/06/new-system/hstnam.txt.html https://trac.common-lisp.net/mit-cadr/export/274/trunk/lisp/chaos/hosts.text Noel

8 years, 4 months

9
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New TestFDC Results Registry

by systems.glitch＠gmail.com

I'd been trying to reach Dave Dunfield with new TestFDC results since apparently August with no results. So, I wrote a new TestFDC registry into my site: https://services.theglitchworks.net/ng/testfdc_results This registry currently includes Dave's last registry update from 2007. There's now a form for entering your results, you can find it as a link >from the registry, or here: https://services.theglitchworks.net/ng/testfdc_results/new Result submissions have to be manually approved currently so that the registry doesn't get spammed. Text export forthcoming. Any suggestions welcome! Moderators, if someone wants to sticky this (here or in other forums), I think this would be a valuable resource for anyone wanting to use ImageDisk on non-PC formats. Thanks, Jonathan

8 years, 5 months

6
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Reviving ARPAnet

by jnc＠mercury.lcs.mit.edu

> From: Warner Losh > I'm curious: does it inter-operate with modern TCP/IP implementations? This just a guess, but 'sort of'? It _is_ TCP/IPv4, so it's got compatible headers, but I don't know if other parts have changed enough to make it not work. E.g. it probably only supports class A addresses, for instance, which is going to influence the code for picking the first-hop router. Also, the only driver is, IIRC, for an ARPANET interface. Noel

8 years, 5 months

4
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IP address classes vs CIDR (was Re: Reviving ARPAnet)

by spacewar＠gmail.com

On Thu, Jan 18, 2018 at 10:39 AM, Grant Taylor via cctalk < cctalk at classiccmp.org> wrote: > I was not aware that there was code that supported /only/ Class A (/8) > addresses and /not/ Class B (/16) or Class C (/24) addresses. > > I /thought/ that everything was either classful (as in supports all three > classes: A, B, and C) or classless (as in supports CIDR). > Years ago I added a configurable "bozo-arp" feature to the Telebit NetBlazer router, which would respond to ARP requests for non-local addresses and reply with the router's MAC address (on that interface), specifically in order to make classful-only hosts work on a CIDR network. Later someone paid me to write a NetBSD daemon ("anyipd") to do the same thing, though for an entirely different reason. Recently I've needed that functionality on Linux, as I have multiple old systems that only understand classful, including the AT&T UnixPC (7300 or 3B1). I suppose I should rewrite and open-source it.

8 years, 5 months

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Reviving ARPAnet

by jnc＠mercury.lcs.mit.edu

> From: Grant Taylor >> It is TCP/IPv4, so it's got compatible headers > Are you referring to the 802.3 Ethernet (vs Ethernet II) frame type No, I meant the IP and TCP headers. Those are end-end; the Ethernet stuff is just a local wrapping, and can be substituted. > I was not aware that there was code that supported /only/ Class A (/8) > addresses and /not/ Class B (/16) or Class C (/24) addresses. > I /thought/ that everything was either classful (as in supports all > three classes: A, B, and C) or classless (as in supports CIDR). > Is my networking history missing something else? Yes. There was a stage before A/B/C. See RFC-760. > Please clarify ... what you mean by ARPANET interface? Are you > referring to host specific hardware that was used to communicate > with an IMP? Basically, yes. The ARPANET supported several different kinds of interfaces between the IMPs (the switching nodes in the ARPANET) and hosts, but the 'usual' one was either 'Local Host' (LH) or 'Distant Host' (DH) which were _basically_ identical except at the very lowest level - LH was TTL, and DH was differential pair. Those interfaces were a custom bit-serial thing with a handshake (with "there's-your-bit", "ready-for-next-bit" lines, etc); see BBN Report #1822: http://www.bitsavers.org/pdf/bbn/imp/BBN1822_Jan1976.pdf So the "ARPANET interface" in the host is a piece of custom hardware (some were DMA; I also used one which was interrupt per byte) which went on the host, which talked 1822 (as it was called), of either the DH or LH physical form. (There was also an Host/IMP interface called VDH, but that used a modem, and a _lot_of software; see here: https://en.wikipedia.org/wiki/Talk:Network_Control_Program#Layer_locations for a bit more about it.) > Do the necessary emulators support the ARPANET interface? Dunno, but they shouldn't be too hard to add. The real problem is going to be 'what do you hook the simulated ARPANET interfaces up to, and how'? I know they have IMP code running in simulators: http://mailman.trailing-edge.com/pipermail/simh/2013-November/007672.html but I dunno how one would hook _that_ simulation up to a simulated host running a simulated ARPANET interface. Easier, to get this old TCP/IP running, might be to write a Unix V6 driver for an Ethernet card (one the simulators do support - I know Ersatz-11 does the Interlan NI1010A/2010A, which is nice and simple) and write an Ethernet network interface module for that TCP, which talks to said driver; i.e. just replace the ARPANET interface stuff completely. Noel

8 years, 5 months

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help id a chip

by billdegnan＠gmail.com

Can someone tell me what chip this is? http://vintagecomputer.net/pictures/2017/Objects/P1010114.JPG http://vintagecomputer.net/pictures/2017/Objects/P1010093.JPG http://vintagecomputer.net/pictures/2017/Objects/P1010094.JPG (note ..94/94 show the item in a sealed in storage material) the underside consists of 4 sets of 12 pins plus the corner 3 pins, as shown on the top of the chip. thanks

8 years, 5 months

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DL10 documentation

by jnc＠mercury.lcs.mit.edu

> From: Lars Brinkhoff > Richard Cornwell wants to implement DL10 for his KA10/KI10 simulator, > but he doesn't have any documentation for it. Any leads? Well.... The "decsystem10 System Reference Manual (DEC-10-XSRMA-A-D) - available online: http://bitsavers.org/www.computer.museum.uq.edu.au/pdf/DEC-10-XSRMA-A-D%20D… has a definition for the -10 side of the interface on pages C-21 and following (page 365 of the PDF). It just specifies the I/O instructions and bits, there's no description of how it works. Still, that will help understand code that uses it; the complete ITS code is available. I couldn't find anything on the PDP-11 side of the interface; ITS' IOELEV > does define a "DLXCSR", and the bits in it, but ... it seems to be a memory location, not a register? The DL10 was used in two DEC system products, the DC76 Asynchronous Communication System, and the DN87 and DN87S Universal Communication System Front Ends. I couldn't find any documentation on the former, but complete prints for the latter are available: http://www.bitsavers.org/pdf/dec/pdp10/periph/MP00068_DN87_Universal_Comm_S… http://www.bitsavers.org/pdf/dec/pdp10/periph/MP00109_DN87S_Universal_Comm_… It includes a complete set of prints for the DL10. From this, and also from: http://pdp-10.trailing-edge.com/bb-d549g-sb/01/boot11.mem.html it appears that the PDP-11's connected to the DL10 have a special console which has a cable which goes to the DL10 which allows the PDP-10 to start and stop the PDP-11; the PDP-11's UNIBUS runs into the DL10 and is plugged into the DL10. Anyway, it's going to be some hard work to create a DL10 programming manual >from those dribs and drabs, but there is enough info there that it can be done. Noel

8 years, 5 months

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Convergent AWS machines (formerly Sold on eBay: Convergent Technologies S/50 a.k.a. Unix PC, AT&T 3B1 Unix Workstation)

by microtechdart＠gmail.com

Alan, my apologies for the confusion here. The email subject still said S/50, but I believe we had switched topics mid-thread. On Mon, Jan 15, 2018 at 6:16 AM, dwight <dkelvey at hotmail.com> wrote: > Years ago, we used one of the Convergent machines. I recall playing rats > on it. It had a green screen. It was a 8086 processor and had some > Multibus slots in it. > I was replying to Dwight with a link to my AWS machine when Dominique chipped in with the Burrows comment. I believe that Dominique was referring to my AWS that I show at http://mightyframe.blogspot.com/2017/03/convergent-technolog ies-workstation.html And I agree with you wholeheartedly on your points. They look nothing alike, and are based on totally different processors. |Alan Perry via cctech <cctech at classiccmp.org> | |As I mentioned elsewhere, I worked on software for them at Burroughs ('86-'89). I |picked up a bunch of B25 stuff in '03, but I could never find any software for |them. In retrospect, I wish that I has stashed away B25 (and B1000 (I was one |of the last people in the office supporting software onthe B1000)) stuff, rather |than return everything, when I left the company. | |alan That's very cool that you worked on the software. And, yes, Alan, agreed about wishing to keep a few of them around...But, I may be able to get the one that I have running soon. I'll be working on it on and off this year. I plan on trying trying to restore the Convergent CTOS on this, rather than the Burroughs BTOS, at least at first anyway... I'll keep you posted here on my progress on that. Thanks, all! Best, -AJ On Wed, Jan 17, 2018 at 11:02 AM, Alan Perry via cctech < cctech at classiccmp.org> wrote: > Are you sure? > > The B20, B21, B22 looked like this - http://www.computerhistory.org > /collections/catalog/102662660 - and nothing like the 3B1 or the S/50. > The B25 and subsequent models (which are often referred to as B20s) are > modular systems that are box-shaped and got wider as "slices" were added. > The B20s were x86-based and the 3B1 (and presumably the CT S/50) was > 68k-based. > > alan > > > On 1/17/18 2:41 AM, Dominique Carlier via cctech wrote: > >> It's interesting, I had exactly the same machine a long time ago, but >> with a different label. It was a Burroughs B20 distributed by Unisys >> >> Dominique >> >> On 17/01/2018 06:45, AJ Palmgren via cctalk wrote: >> >>> Did it happen to be one of these older-style Convergent AWS machines? >>> >>> http://mightyframe.blogspot.com/2017/03/convergent-technolog >>> ies-workstation.html >>> >>> >>> > -

8 years, 5 months

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Sold on eBay: Convergent Technologies S/50 a.k.a. Unix PC, AT&T 3B1 Unix Workstation

by microtechdart＠gmail.com

I'm just wondering if anybody here did (or knows who) bought this one. http://ebay.to/2DaRr13 Even though these were all manufactured by Convergent Technologies, this one is actually BRANDED by Convergent, as their model S/50. And there's software included here. I tried to buy myself, but just missed it. I'd really like to connect with the buyer here, to see if we can do a more expansive documentation project on this machine, as well as an archival of the software that was included. As far as I know, this is the only Convergent S/50 I've ever seen that has survived, especially with all the CONVERGENT software and manuals (vs the AT&T ones)! Thanks! -AJ http://MightyFrame.com

8 years, 5 months

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Malware history was: Spectre & Meltdown

by rlloken＠telus.net

On Tue, 16 Jan 2018, David C. Jenner via cctalk wrote: > This isn't malware, but back in 1962 when I was taking a college class in > assembly language programming for the IBM 709, my innocence led to the > following. We might as well all contribute. Back in college in 1969 we would submit our Fortran IV assignments on punched card of course. One day I got back junk and discovered that it was not my card deck under the account ID card so I went through the pile of returned decks and printouts and found that another student had swiped my deck and put his name on top so I took back the deck and shuffled his deck well before returning his ID card to the top and resubmitting it. I never heard a thing about that episode but I sometimes wonder what his next output looked like. -- Richard Loken VE6BSV : "...underneath those tuques we wear, Athabasca, Alberta Canada : our heads are naked!" ** rlloken at telus.net ** : - Arthur Black

8 years, 5 months

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Passing of a valued member

by toby＠telegraphics.com.au

To the list: It is with deep personal sadness that I write that young list member Marc Grenville-Cleave, of Dorset UK, has passed away. He was known personally to several list members. I did not have the pleasure of meeting him in person but as he was a longtime friend I wanted to write a brief celebration of his life and interests. Most relevant to this list, Marc was an avid DEC collector and PDP-11 enthusiast and rescuer: http://marc.cleave.me.uk//pdp11/index.htm He was also the proud owner of a VAX-11/750, among other computers: http://marc.cleave.me.uk/collection.htm He was self-taught in many skills, including electronics, and had natural gifts as an engineer. Around the age of 14 he designed an 8-bit TTL CPU, which he called "Titan". You can read more here: http://marc.cleave.me.uk/cpu/ & https://github.com/bootnecklad/Titan-Specifications The machine was wire-wrapped and soldered with his trademark meticulous care, as you can see from the photos on the first site linked. Here is a picture of Marc with some of his favourite machines (Titan in the background): http://i.imgur.com/CCinlCS.jpeg Many people knew him on irc, as "bootnecklad" or "bnl", in the #classiccmp Freenode channel and elsewhere. His sense of humour was unique, sparkling and irreverent. Aside from his electronics and retrocomputing interests, he restored his beloved Range Rover Classic over a long period and finally got it roadworthy in 2016. He was a perfectionist in this project as in everything else. Most recently Marc was a Electronic and Computer Engineering student at the University of Nottingham. He will be painfully missed by very many people. --Toby

8 years, 5 months

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Weird thing ID (core stack?)

by toby＠telegraphics.com.au

Hi, An acquiantance was wondering about more details on this part: https://imgur.com/a/p1GQ2 It seems to be a core memory stack? But of what type? CDC? Any info appreciated. --Toby

8 years, 5 months

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Reviving ARPAnet

by jnc＠mercury.lcs.mit.edu

> From: Charles Anthony > it was shipped has an "unbundled" product. Ah. I assumed that what had happened was that the set of source files at MIT was just what was in the 'last release', and the NCP code had been discarded by then. I wonder if it's on a backup tape that MIT retained, somewhere? So now I'm curious - weren't many other pieces of important software similarly "unbundled", and if so, were those missing too? Noel

8 years, 5 months

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AT&T UNIX PC 7300 (3b1) disassembly video

by microtechdart＠gmail.com

While I'm thinking about it, for any/all who might be interested, just last week, I created a step-by-step video for disassembling a UNIX PC 7300 (with a few comments/comparisons for the 3b1) https://youtu.be/vYKS-jOdcsQ I've always found them tricky to work on with the way they are packed together, so I hope this could help others who might want to take a crack at a repair/restoration (or, heaven forbid...a "part-out") -- Thanks, AJ http://MightyFrame.com http://QICreader.com http://UnixPC.blogspot.com

8 years, 5 months

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Reviving ARPAnet

by jnc＠mercury.lcs.mit.edu

> From: Phil Budne > I asked around for v6 Unix with "NCP" code when the IMP code was > resurected, but never found it.... Yeah, that one was retrieved only recently, when Chuck managed to read an old dump tape I had of the MIT-CSR PWB1 Unix PDP-11. We didn't run NCP on that machine, but I had squirreled away that code (and the BBN code) on it (in case we ever had any use for it). Noel

8 years, 5 months

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HP 2108A key

by Tim＠Rikers.org

On 09/21/2017 08:52 AM, Fred Cisin via cctalk wrote: > On Thu, 21 Sep 2017, Mike Loewen via cctalk wrote: >> ? Mike Thompson at the RICM is going to look for a number on the key >> for their 2108A, this weekend. > > Ask if he can snap a few good close-up pictures of it.? While > measurement from a picture isn't reliable, it doesn't have to be, if the > picture is clear enough to decide whether a given cut is a 2 cut or a 3 > cut. > Did this get resolved? I have an HP-2108A with key as pictured here: https://rikers.org/gallery/hardware-hp2108a/20050415_132446

8 years, 5 months

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Reviving ARPAnet

by lars＠nocrew.org

Hello, What software, hardware, simulators, emulators, etc are there that could run ARPAnet today? - ITS has support for NCP, but I don't know if it works. - There's source code for the IMP. - TENEX seems ok at a quick glance. - WAITS, likewise. - Multics NCP has not been located. - Unix? - IBM mainframes? - NOS? - VMS? Does anyone have any host tables between 1975 and 1981? Classic regards, Lars Brinkhoff

8 years, 5 months

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Spectre & Meltdown

by c.murray.mccullough＠gmail.com

I wrote about Spectre and Meltdown recently: INTEL took its time to inform the world! Did it inform the world back in earlier days about potential flaws? Not to blame INTEL only: What about Zilog, etc.? Or did pre-Internet era protect us computer-classic users? What about running emulation software as I?ve been doing with ADAM? Happy computing! Murray J

8 years, 5 months

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New S-100 boards For Sale and Update to Tektronix 4051 bundle

by sellam.ismail＠gmail.com

Hello Good Folks. I've put up a new batch of S-100 boards for sale, details here: http://www.vcfed.org/forum/showthread.php?61192-Sellam-s-S-100-Hardware-Sof… I've also added a 4051E01 ROM Expander to the Tektronix 4051 system I put up for sale earlier. Details and photos here: http://www.vcfed.org/forum/showthread.php?61006-Tektronix-4051-complete-sys… As always, direct responses via e-mail. Thank you! Sellam

8 years, 5 months

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Which Operating System for my DCC-116 E / Entrex 480 / Nixdorf 620 / Data General Nova 1200 clone ?

by jnc＠mercury.lcs.mit.edu

> From: Jay West > I'm wary of just sending the tape through the mail for imaging.... Why? I sent some tapes out to Chuck to get read, those went by USPS, and no problem (well, one had some drop-outs, but they were old and not in great shape; the other one read fine). Noel

8 years, 5 months

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DECtape madness

by jnc＠mercury.lcs.mit.edu

So why are reels of DECtape selling for unbelievable prices on eBait? See, e.g. here: https://www.ebay.com/itm/372186744906 and here: https://www.ebay.com/itm/372186745609 I can't believe there are hordes of TU55/TU56 owners out there who desperately need media; so what is it? People who think DECtapes were super cool and have to have a reel, even though they don't have a drive? Or are there actually TU55/TU56 owners (remember, it takes two bidders to put the price up) who really need media? Anyway, it looks like this person: https://www.ebay.com/itm/202183912961 who got four for the 'bargain' price of $80 got a 'deal'! Noel

8 years, 5 months

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Long Shot - Looking for boards from a Western Electric 101-A modem

by pete＠petelancashire.com

Think 101-C's are rare ? This weekend a Teletype model 35 came home with me and the attached Western Electric 101-A modem is missing its boards. https://photos.app.goo.gl/rZNAt20Vh9CXAflA3 -pete

8 years, 5 months

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GT-40 etc.

by jnc＠mercury.lcs.mit.edu

> From: Fritz Mueller > Definitely an RK11-C Ah; the dual-wide plug-in connector soldered onto the back kind of threw me a bit! > And it would make sense with the diablo and the RK05 in there. Right, but I wonder if the RK05 is on the same controller as the Diablo, or if the PDP-8 has an RK controller, too. Noel

8 years, 5 months

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Gallery online: A collection of Soviet control rooms pictures

by rtomek＠ceti.pl

What the subject says. For control & analog aficionados. http://blog.presentandcorrect.com/27986-2 source: https://lobste.rs/s/ziu1uu/collection_soviet_control_rooms -- Regards, Tomasz Rola -- ** A C programmer asked whether computer had Buddha's nature. ** ** As the answer, master did "rm -rif" on the programmer's home ** ** directory. And then the C programmer became enlightened... ** ** ** ** Tomasz Rola mailto:tomasz_rola at bigfoot.com **

8 years, 5 months

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Which Operating System for my DCC-116 E / Entrex 480 / Nixdorf 620 / Data General Nova 1200 clone ?

by microtechdart＠gmail.com

Dominique, Just checking in with you on this, and to thank you for posting your interest in this system here. Do you have any updates, or perhaps new videos of it operating? Thank you! -AJ On Wed, Oct 4, 2017 at 1:33 PM, Dominique Carlier via cctalk < cctalk at classiccmp.org> wrote: > Hi all > > I start here another topic concerning my research about a new Operating > System for my freshly restored DCC-116 E. > > http://www.zeltrax.com/classiccmp_forum/second_boot/04.jpg > http://www.zeltrax.com/classiccmp_forum/second_boot/02.jpg > > I originally intended to install RDOS on my machine but it seems very > difficult to find the files needed to make a system installation tape. > > I do not know well the subject yet, I don't found clear information about > the compatibility of my clone with the original RDOS from Data General. > Thus, before trying the impossible, I would like to know if another OS are > available for my machine ? > > I would like to be able to do basic things like : > > - Be able to manage my devices, copy files from tape to disk or vice versa. > - Be able to list directories, create subdirectories. > - Write and read text files that I could send on my drum printer. > - Have some communication software, tty, rs-232 (for the day I find a comm > board). > - Some diagnostic tools to check core memory, disk, tapes. > - Being able to write in a simple programming language such as BASIC would > be great. > - Be able to use simultaneously more than one Entrex terminal. > - Maybe a database software ... ? > > Of course I am also interested in anything that goes beyond that. I also > have more bizarre projects with this machine like generating algorithms to > trace small animations on an analog oscilloscope and ... well, another > chapter ;-) > > > To recap, here the specifications of my system: > > Computer : D-116, clone of a DG Nova 1230 with 17 slots, also known as > "Entrex 480" and "Nixdorf 620" > Core memory : 64 kW > Terminal : ENTREX DATA/SCOPE > Disk Cartridge : Diablo Model 40 > Mag-tape : Pertec 8840A (800 bpi) > Line drum printer : Data Products model 2230 > > As the machine was distributed by Nixdorf, the identification of the tape > and disk controllers is a bit difficult, but I can take detailed pictures. > > Thanks a lot for your help ! > > Dominique > >

8 years, 5 months

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SOT - Ultimate Classic Computing Geekdom

by trash80＠internode.on.net

Hi folks - the family surprised me for Christmas by all contributing to some custom plates for my new car. This might tell you how well they know me. http://koken.advancedimaging.com.au/index.php?/albums/274143f7eae640a16c276… Kevin Parker P: 0418 815 527

8 years, 5 months

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DECtape archeology.

by mattislind＠gmail.com

I saw Pauls post about old DECtapes which reminded me about a bunch of DECtapes I had lying here. On my workbench I have a PDP-11/10 with TC11 and TU56 setup which works nicely so I decided to image a few more DECtapes. For those interested in old diagnostics and other things it can be worth looking into. http://storage.datormuseum.se/u/96935524/Datormusuem/dectapes-1.tgz Some comments: I have not tried to boot any tape natively since my M9312 need a TC boot PROM, need to burn one. I have tried to boot most of them in SimH, but many of them fail with a HALT somewhere. Need to test this further on real hardware as soon as I have a TC bootstrap. D1.DSK had an I/O Error so it is not the full dump. D2.DSK however boots to a prompt: DDP1-V001 28K RSTRT: 155766 .DIR . DIR .BIN 003 17-NOV-71 DTCOPY .BIN 006 17-NOV-71 D0AA .BIN 014 17-NOV-71 What is DDP1-V001? Some early diagnostics monitor? The filesystem seems to be DOS-11 as RT-11 FILEX is able to read the directory with /S D5.DSK is also a DOS-11 file structure and apart from quite some diagnostics also contain FOCAL1.BIN DT5.DSK contain a binary MOON.BIN which according to the label is some variant of Moonlander / Lunarlander. So, yes. I do have a system up and running that can Image that RSX11-D VT30 tape if needed. However it will be moved on the 27th of January. /Mattis

8 years, 5 months

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WTB: 1/2" 6250 CPI tape

by shadoooo＠gmail.com

Hello, I'm searching a source of good tape for a TU80 and a TU81 I have. I acquired some media from eBay, but all of that suffers of sticky problem and is unusable. Anybody has some to sell, or for give an advice of a seller of proven good tape? I wish prefer a seller in EU or UK, but even overseas could be considered, if I don't find a nearer solution. Thanks Andrea

8 years, 5 months

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GT-40 etc.

by jnc＠mercury.lcs.mit.edu

> From: Paul Anderson > I wonder what happened to the third rack... And the TU-56... I'm going to disagree with Al, though - I don't think it's going to go for that much, it's 'local pickup only'. That's going to severely limit the bidder pool. Noel

8 years, 5 months

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GT-40 etc.

by jnc＠mercury.lcs.mit.edu

> From: Ali > why is there potential for the system to go for insane amounts of money? I'm going to guess that Al had the GT40 in mind. (I wonder if that was named after the car, BTW?) I don't see anything else there that's _that_ desirable - the Diablo (aka RK02/RK03) is pretty rare, and that exposed backplane above it _might_ be an RK11-C, but I don't think either of them is _that_ desirable. Although maybe he was just thinking of the whole package... Those plus the RK05, the PDP-8, two complete H960's - it adds up... Noel

8 years, 5 months

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PDP11 media looking for a good home

by Flash688＠flying-disk.com

Paul Koning <paulkoning at comcast.net> wrote: > I have two items that I'd like to send to a good home. That > means, someone who can read the item in question and make it > available so it's preserved. > 1. A DECtape labeled "VT30 distribution for RSX11D V06-B". > VT30 is a DEC CSS product, a color alphanumeric terminal. I have a DECtape TU56 drive and a PDP-11/34, along with RSX for same, so I could copy it for posterity. However, the drive and the PDP-11 are in different rooms right now, and it would be several months before I could unite them and copy the tape. If you cannot find someone who can do it quicker, I will be happy to do the job. (I will be out of town until Tuesday 1/16 and unable to access email.) Alan Frisbie

8 years, 5 months

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Any interest Risc 6000/250

by pete＠petelancashire.com

https://photos.app.goo.gl/qqEF53fVbpNhYoTX2 In storage, if any interest will find out what's in it and the condition. Location Portland Oregon Price cheap/trade -pete

8 years, 5 months

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PDP11 media looking for a good home

by shadoooo＠gmail.com

Hello Paul, I have a VT30 board set, it would be nice to receive a copy, if not the original, of related bits you have! Maybe also some documentation? Thanks Andrea

8 years, 5 months

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DL10 documentation

by jnc＠mercury.lcs.mit.edu

> From: Liam Proven > I had a major WTF moment at that. The actress had a prior or parallel > career as an engineer? Why not? Hedy Lamarr: https://en.wikipedia.org/wiki/Hedy_Lamarr invented spread spectrum communications! :-) > From: Dave Mitton > I could ask John Shriver ;^) Sure, not a bad idea. He was on the edge of that (he wasn't really part of the IETF world), but perhaps he has some memory that would bear. Noel

8 years, 5 months

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DL10 documentation

by jnc＠mercury.lcs.mit.edu

> I'm to[o] busy right now to dig back through my ancient records (paper > and email) to find details So while I didn't have time to do either of these (my Proteon email, if I still even have it, will be on a magtape I'd have to get Chuck to read; and the paper records are mixed in with a giant pile of other stuff - I was on the IESG while I was at Proteon, and it's all mixed in together), I did take a quick look online to see if I could locate anything from that time period - knowing how bad human memory really is, I wanted to make sure my memory wasn't playing me false. I didn't have high hopes, since stuff from the late 80's is hard to find online, and I my expectations weren't disappointed (at least, in the brief time I could put into it), but I did happen to turn up this: John T. Moy, "OSPF: Anatomy of an Internet Routing Protocol" which I'd vaguely heard about, but don't have (although I have everyone else's books; I'll have to get a copy), wherein one may find (pg. 303) this: "OSPF considered, but did not use, IS-IS as a starting point." which seems fairly definitive, and straight from the horse's mouth. I do wish I had access to more contemporary documents to, to give it a bit more detail. As I recall the circumstances, I had previously wanted to do a link-state replacement for EGP (to be called FGP) but Dave Clark (who was at that time on the Proteon board) shot it down (IIRC, in part because he thought it was too big a job for John - and John was not sanguine either; whereas I had already seen enough of John to know he was quite capable of it). That part I remember clearly, but from here on out it gets hazy (I was so busy with goings-on in the IETF, juggling so many things with that, Proteon, etc), alas; and it's been too many years since those memories were refreshed by use. I do recall that we also needed a better IGP, as RIP was not really that good, and Proteon decided they could do that - and John and I would have agreed that a link-state design was the only way to go. It started out as a Proteon-specific thing, for Proteon's customers, but like SGMP (which started in similar circumstances, before morphing into SNMP), it soon turned into an 'open' effort, in the IETF. I don't recall how (i.e. why) that happened, but I assume it was a similar set of reasoning as with SGMP/SNMP. It might be that if the IETF email archives from that period can be found, they'd have some useful coverage of that. My vague memory is that our biggest design influence was the ARPANET work, and especially the later version which added area support (described in: Josh Seeger and Atul Khanna, "Reducing Routing Overhead in a Growing DDN", MILCOMM '86, IEEE, 1986 which I have in hardcopy somewhere, which I saw on the top of a pile recently, so I can scan it if someone's interested), and also the subject of a memorable briefing to the proto-IETF by Linda Seamonson, which I remember clearly - not the technical details, alas, just at how good a presentation it was! :-) I remember in particular they had a very elegant/clever method for defining the area boundaries. Like I said, we did 'borrow' some idea from IS-IS, in particular the sequence number thing - but that may have come direct from Radia's paper: Radia Perlman, "Fault-Tolerant Broadcast of Routing Information", Computer Networks, Dec. 1983 I don't recall where the concept of a designated router stuff came from, if IS-IS was any influence there or not. I did interact with John quite a bit in the very early design stages (I'd been making a deep study of routing for quite a few years, so I was really the only person there who was steeped in routing he could talk to), but as the work prgressed - particularly once it moved to the IETF - I got out of the loop, as I was too busy with other things, and he clearly had things in hand. I also seem to vaguely recall disagreeing with him about some design points, but I can't remember what. Anyway, probably the wrong list for this. (Internet-history would have been better.) Sorry, I didn't mean to get into a long thing, thought I was just correcting a bit of nth-hand 'telephone-game' type garbling of a minor point.> Noel

8 years, 5 months

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DL10 documentation

by jnc＠mercury.lcs.mit.edu

> From: Phil Budne > simulating the DL10 so you can run TVs would REALLY be bringing back a > lost artifact!! The Knight TV's were connected through the Rubin 10-11 interface, not a DL10. > I'm pretty sure DN87S was a DN87 front end attached to a (KL) DTE > (Ten/Eleven) interface instead of a DL10 (or POSSIBLY visa versa). Ah, right you are: I just assumed from the name (without checking!) that it was some kind of variant on the DN87 - which I guess it is, just a more major one than I thought! :-) I wonder why DEC sold MIT a KL with a DL10 for the second PDP-11 front end? (The Console-11 was connected via a DTE.) Maybe it was so early in the product run that the DN87S didn't exist yet? Noel

8 years, 5 months

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data cassette and robotic arms

by dave＠661.org

This looks like fun. http://www.avrfreaks.net/forum/decoding-old-data-casette-format I'm not associated in any way with this. -- David Griffith dave at 661.org A: Because it fouls the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting. Q: What is the most annoying thing in e-mail?

8 years, 5 months

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MIT needs ASR-33 for a demo

by cctalk＠snarc.net

Who's in the Boston area? A technician at MIT needs to borrow a working ASR-33 for demo there this month. Contact me off-list if you can help...

8 years, 5 months

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PDP11 media looking for a good home

by paulkoning＠comcast.net

Gentlepeople, I have two items that I'd like to send to a good home. That means, someone who can read the item in question and make it available so it's preserved. 1. A DECtape labeled "VT30 distribution for RSX11D V06-B". VT30 is a DEC CSS product, a color alphanumeric terminal. 2. An RA60 pack labeled "RT11 V5.6" and possibly (it's hard to see) "kit". That "kit" seems a bit unlikely, an RA60 is way bigger than makes sense for an RT11 kit. But if it were a source pack that would be a different matter. #2 was found in an abandoned DEC facility; #1 I don't remember, possibly the same. An RA60 pack looks physically like an RM03 pack, but its capacity is much larger so the format is entirely different. A PDP11 or VAX with an RA60 drive should be able to read it. If you have the ability to use one or both of these and are willing to read the data and post it, please contact me. paul

8 years, 5 months

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DL10 documentation

by dave＠mitton.com

> From: jnc at mercury.lcs.mit.edu (Noel Chiappa) >> From: Paul Koning >> That may be the story, but I don't believe it. >> Was anyone from whom you have heard differently _at Proteon_? If not... I could ask John Shriver ;^) Dave. Sent from Mail for Windows 10 --- This email has been checked for viruses by Avast antivirus software. https://www.avast.com/antivirus

8 years, 5 months

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DP 1000 and filing off IC identifiers? Why?

by terry＠webweavers.co.nz

Hi, My apologies for cross-posting. I?m putting this on a few of the forums I have a third party TRS-80 Model 1 expansion unit that I used with my System 80 when I first got disk drives. I?ve decided I should add some pics and info to the System 80 website as I know they were used here in New Zealand with System 80?s and, also in the U.K. for the Video Genie. A modified expansion cable was needed to convert from the System 80 expansion bus to the TRS-80 Model 1 bus on the unit but that was straightforward. The interface is called a DP 1000 by General Northern Microcomputers Ltd. It has no RAM, but contains a disk controller and printer port. It was designed for ?80s Model 1s and compatibles that had 48K of RAM under the keyboard, rather than requiring it in the expansion unit, as was the standard configuration. Many System 80s had their memory expanded under the keyboard so it was ideal for these. Mine was like this, and I found my DP 1000 worked very well with it. Before I put some info up, I?m wondering if anyone knows any more about General Northern Microcomputers Ltd, the company that made the DP 1000? I?m pretty sure it?s a U.K. company. Also, most of the chips have their ID?s shaved off (see the circuit board image)?? Why would they do this? I can only assume it was to stop reverse engineering? Here are some pics: http://www.classic-computers.org.nz/system-80/hardware_DP-1000-front-800.jpg http://www.classic-computers.org.nz/system-80/hardware_DP-1000-back-800.jpg http://www.classic-computers.org.nz/system-80/hardware_DP-1000-circuit-boar… Cheers Terry

8 years, 5 months

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DL10 documentation

by jnc＠mercury.lcs.mit.edu

> From: Phil Budne > ISTR the DTE was a DMA interface, not memory mapping like the DL10 I don't know either; I could probably work it out from looking at the DTE documentation, which I'm too lazy/busy to do... :-) > I also seem to recall that MC was designated as a "1080" which the above > URL says means "Model A, External channels only, tall cabs Yup, that's what it was. > I remember finding documentation on MC for "KLDCP" the original DEC > front-end software (suitably defaced) which DEC later replaced with a > modified version of RSX-11 MC, on the other hand, ran KLDCP ('KL Diagnostic Console Program') until the end. (The sources of DEC KLDCP version 7 are still available from the MC dumps, if anyone wants them, along with the MIT-modified version.) The console -11 on MC ran a 'combination' of IOELEV and KLDCP - the two remained pretty much separate, just cooperated to share the machine: KLDCP does JSR PC, [to 03000] when it has nothing to do and 10 is running. IOELEV should INIT if it hasn't already, then go into its main loop. It should CLC, RTS PC if the 10 goes down; KLDCP will print appropriate message. To go into temporary KLDCP command mode, SEC, RTS PC. I get the impression from the IOELEV source that it ran on the -11 connected to the DL10 first (stand-alone, by itself), and was later adapted to share the console -11 with KLDCP. Amusing comment in the KLDCP source: WE HAVE GONE TO CONSIDERABLE DIFFICULTY AND EXPENSE TO ASSEMBLE A STAFF OF SORCERERS, SHAMANS, CONJURERS AND LAWYERS TO VISIT NETTLESOME AND MYSTIFING DISCOMFORTS ON ANY NINNY WHO ENDEAVORS TO REPRODUCE OR USE THIS PROGRAM IN ANY FORM OR BY ANY MEANS, ELECTRONIC OR OTHERWISE, INCLUDING COMPUTERS AND INFORMATION SYSTEMS, WITHOUT PERMISSION FROM THE DEVELOPER. WATCH YOURSELF! > diagnostic KLINIC (sp?) line). KLINIK, according to KLDCP stuff. Noel

8 years, 5 months

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DL10 documentation

by jnc＠mercury.lcs.mit.edu

> From: Paul Koning > That may be the story, but I don't believe it. Well, I was right there - I was the chief architect of the Proteon router product, for which John Moy worked, and was the person who pushed John into doing OSPF (he didn't think he knew enough). I'm to busy right now to dig back through my ancient records (paper and email) to find details, but I can assure you we did not 'base' OSPF on IS-IS. Was anyone from whom you have heard differently _at Proteon_? If not... Noel

8 years, 5 months

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DL10 documentation

by jnc＠mercury.lcs.mit.edu

> From: Paul Koning > That was then adopted by OSI as IS-IS, and further tweaked to become > OSPF. Err, no. OSPF was not a descendant of IS-IS - it was a separate development, based mainly on the ARPANET's original link state routing. (I can't recall if John Moy and I took a lot from the later 'area' version of the ARPANET link state, although we knew of it.) I think we became aware of IS-IS as OSPF progressed, and IIRC John 'borrowed' a few ideas (maybe the sequence number thing). IS-IS was later evolved to handle both OSI and IP addresses (and has, I assume, since been extended to handle IPv6 too). Noel

8 years, 5 months

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Getting Sun Sparcstation 10 to recognize its graphics card

by billdegnan＠gmail.com

Working from this page to configure my sparcstation 10 after NVRAM replacement: http://www.obsolyte.com/sunFAQ/faq_nvram.html ...but curious is there an installation manual or whatever specific to the video card in my system, a TurboXGX with STP3010GPA chip http://vintagecomputer.net/sun/SparcStation-10/Sun_STP3010PGA_TURBOXGX.jpg I have Solaris 4 installed. I am guessing around trying different things. With help I have the OS installed but so far I can't get the system to recognize the video card and Sun keyboard. With these installed it freezes the system...so, I am using a serial terminal to interact with the system. The video display I have is an SGI GDM-20D11 Eventually I'll poke through to the solution, this is my first Sun box, up to this point they were "too new" but I'd like to learn how to perform a system install. If I find the answers I am looking for I'll post here. Bill

8 years, 5 months

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offering: computer, A/V and optical equipment, plus books and more, to be cleared out around mid-December

by mgariboldi＠gmail.com

Is anyone perhaps interested in any of the following? It's essentially the remainder of some of my earlier offerings. I took the time to provide some details (that previously may have been missing) I intend to clear out the majority of it by mid-December (around the 15th), after that it will likely be hauled off to the recycler. ---- tape drives and media (pictures: <http://bit.ly/2AjxQYu> <http://bit.ly/2AjxQYu>, <http://bit.ly/2jxDPkB> <http://bit.ly/2jxDPkB>, <http://bit.ly/2AjFkeh> <http://bit.ly/2AjFkeh>, <http://bit.ly/2zBrv9S> <http://bit.ly/2zBrv9S>, <http://bit.ly/2AGR9Ot> <http://bit.ly/2AGR9Ot>, <http://bit.ly/2AI3Dp6> <http://bit.ly/2AI3Dp6>) -- Ultrium (Linear Tape Open) - Hewlett-Packard StorageWorks Ultrium 920 (LTO-3) external half-height tape drive SCSI U320 LVD/SE with auto-termination - Quantum LTO-3 internal half-height tape drive SCSI U320 LVD/SE with auto-termination - Seagate Viper 200 LTO-1 external full-height tape drive SCSI U320 LVD/SE with auto-termination - Hewlett-Packard, Quantum, Maxell, Fujifilm, Sony, etc. LTO-{1,2,3} data and cleaning tape catridges, many new and unused, many available (see pictures) -- Digital Data Storage - Hewlett-Packard StorageWorks DAT72 (DDS-5) internal tape drive SCSI U320 LVD/SE (possibly with auto-termination; not fully sure, need to check) - Sony SDT-D11000 DAT40 (DDS-4) external tape drive, SCSI (LVD?/)SE - Hewlett-Packard StorageWorks DAT160 (DDS-6) data and cleaning tapes, several tapes, nearly all new and unused - Hewlett-Packard StorageWorks DAT72 (DDS-5) data and cleaning tapes, several boxes, 2~3, largely new and unused - Hewlett-Packard, Compaq, Maxell, Fujifilm, Sony, etc. DDS-{1,2,3,4} data and cleaning tape cartridges, various types, many available (see pictures) ---- computer components (multi-platform, cross-architecture) - Hewlett-Packard-branded S2io/Exar/Neterion 10Gbit (10GBASE- SR) PCI-X NICs, including 850nm transceivers, supported on many platforms (including Windows, IRIX and OpenVMS), around 5 available - Hewlett-Packard, LSI, etc. PCI/-X adapters, e.g.: SCSI, FC, FC/SCSI duo (hybrid), etc. HBAs, NICs, IEEE-1394a (FireWire/ i.Link) adapters and more, various types and (re)brandings ---- software -- operating system - Hewlett-Packard OpenVMS (I64) Open Source Tools (2010) CD-ROM, in original sleeve - Hewlett-Packard Tru64 UNIX V5.1B Documentation (2010) CD-ROM, in original sleeve - Hewlett-Packard Tru64 UNIX NHD-7 (New Hardware Delivery) kit (2010), in original packaging (unopened), primarily intended for e.g. HP AlphaStation/AlphaServer DS15/A - Compaq OpenVMS Alpha V7.2 (1999) CD-ROM, disc 1 of 2, in sleeve - Compaq OpenVMS Alpha V7.2 & V7.2-1 System Crash Mandatory Update (1999) CD-ROM, in sleeve - Microsoft Windows 7 Home Premium, NL (Dutch), licenses included, 2 available - Microsoft Windows XP Pro SP2b, NL (Dutch), OEM, only media (no license) -- applications - Frame (later Adobe) FrameMaker for SunOS/Solaris, advanced typesetting software, boxed with documentation and installation media - Sybase Database for OpenVMS (Alpha), in original jewel case - Syntax TotalNET Advanced Server for SunOS/Solaris(?), boxed - VITec RasterFLEX (v4.0) for SunOS/Solaris, boxed (pictures: <http://bit.ly/2AoHk4P> <http://bit.ly/2AoHk4P>, <http://bit.ly/2j4QsE8> <http://bit.ly/2j4QsE8>, <http://bit.ly/2Auth07> <http://bit.ly/2Auth07>) - Sega DreamKey, internet web browser software(?) for Sega Dreamcast, in original jewel case ---- books (mostly English and some Dutch) - various (see picture: <http://bit.ly/2BlLtWu> <http://bit.ly/2BlLtWu>), on computing/ computers, computer architectures (e.g. MC68000), the history of IBM, also computer graphics, covering software like Maya (v2.5), Houdini (v6~8) and LightWave 3D (v5.5~5.6), etc. ---- computer input devices and other peripherals - Wacom serial (perhaps also ADB and USB, need to check) digitizer tablets, in various sizes - Logitech PS/2 trackball, barely used ---- Cardbus adapters - Sitecom USB 2.0, providing 2 ports - SIIG IEEE-1394a FireWire ---- Apple Macintosh serial & ADB adapters - Keyspan Mac Serial Adapter (to USB) - Griffin iMate ADB to USB adapters, 2 available, one includes the original packaging ---- serial cables and converters - DeLock, generic, etc. DB9, DB25 and conversion cables, including straight-through and 'null-modem' varieties, fairly large amount available ---- SCSI, SAS/S-ATA and FC cabling - multi-vendor internal SAS to S-ATA cables, several, including in unopened packages - multi-vendor internal and external SCSI cables, several available - multi-vendor internal and external SCSI terminators, mainly LVD/SE (incl. UW and U320) but also HVD, both active and passive, several available - multi-vendor LC (LC to LC) fiber-optical cables (contact me about OM type), several available and in various lengths ---- PCs and components - IBM-branded DDR2 RAM R-DIMMs (as kits), I believe 8GB in total (I need to check), removed from a working IBM x346 server at the time - ASUS M8N-E, with AMD Athlon64 X2 CPU, 8GB DDR2 RAM and documents - ASUS M2N-E SLI, with AMD Athlon64 X2 CPU, 4GB DDR2 RAM and documents - Cooler Master 600W (AT) PSU - Cooler Master(?) 460W (AT) PSU ---- SGI (MIPS-powered) IRIX systems and components - SGI Tezro & O3x0 HDD sled/tray (Intel type), with optional blanking/airflow plastic included, at least 1 (maybe 2, need to check) - SGI DMediaPro DM10-compatible IEEE-1394a FireWire (3.3V) PCI card with cables, SGI DMediaPro DM10 manual, etc., boxed - SGI IMPACT (MGRAS) 4MB TRAM module, possibly defective -- not really interested in selling, but in theory for sale (depending on the offer, I might be persuaded) - SGI Indigo? IMPACT/10000, with 195MHz MIPS R10000 CPU, 1GB RAM, High IMPACT plus 4MB TRAM, IMPACT Video plus VBOB, Plextor CD-ROM drive, intact bezel, lockbar included, etc. - SGI O2, with 400MHz MIPS R12000 CPU, 1GB RAM, digital A/V (AV2) module, Toshiba DVD-ROM drive, intact bezel, etc. ---- general 19" rack equipment - general 1U fan (low-noise ventilator) unit, with temperature monitoring & control - general rack trays (vented), at least one (possibly more) - general rack mounting bars, cable managers and other accessories - general mounting fasteners (RM mounting blocks and screws) ---- video games and peripherals - Nintendo Super Scope for Super NES (Nintendo Entertainment System), PAL/EUR region, including cartridge and documentation ---- graphics monitors, cables and accessories - Dell UltraSharp U2412M, 24" IPS LCD monitors, 1~2 available - ATEN USB & VGA (HD15) KVMs, with documentation, about 2~3 available - SGI 13W3 (HD13W3 to HD13W3) cable, about 2?~3 meters in length - generic short DVI-D cables (around ~0.5 meters / ~1.6 foot), ideal for SGI VBOB plus DM5 with DM2/DM3 - generic component monitor cables, one with RCA (tulip) and another with BNC cabling - generic DVI-D splitters (not sure if I still have them, I need to check) ---- video equipment - JVC DTV Component Multi DT-V20L1D, 22" LCD, full HD, 10-bit (Deep Color), professional multi-format broadcast monitor, with lots of built-in I/O (HD component, HD-SDI, HDCP-capable DVI, composite video, etc.), with a few dead pixels - JVC DTV Component Multi DT-V1710CG, 17" CRT, full HD, 10-bit (Deep Color), professional multi-format broadcast monitor, with various input modules (including SD-, HD-SDI and HD component, also available individually, in original boxes) - Gefen 1080p Scaler for HDMI, boxed, professional-grade digital video scaler (picture: <http://bit.ly/2AgQjqS> <http://bit.ly/2AgQjqS>) - Miranda ASD-271p, professional analog-to-digital A/V signal converter, including external PSU, ?as-is? (untested, or not recently tested) - generic HDMI to 3G/HD-SDI (also SD-SDI capable) bridge - generic ~20 meter / ~66 feet, HD/3G/+-SDI BNC cable - DeLock ~10 meter / ~33 feet, HD/3G/+-SDI BNC cables, two available and one in the original packaging - DeLock and generic ~0.5~1 meter / ~1.6 foot, HD/3G/+ -SDI BNC cables, around 3~5 available - generic and various other lengths of HD/3G/+-SDI BNC cables, several available, some in original packaging - generic 75? BNC terminators for SDI, many available ---- photo-/cinematographic equipment -- cameras - Sony HDR-FX1000E, HD video camera (3-CMOS), with optional accessories, like large Sony carrying bag (pictures: <http://bit.ly/2BBvxAw> <http://bit.ly/2BBvxAw>) - Blackmagic (Design) Pocket Cinema Camera (BMPCC), RAW & 10-bit ProRES, full HD video camera, in original box, plus optional accessories -- BMPCC accessories: - BMPCC batteries, multiple of Blackmagic Design and one of Nikon (original) - Kamerar QV-1 viewfinder magnifier (loupe) - ... and more (contact me) (pictures for all of the above and some of the below: <http://bit.ly/2j43Icr> <http://bit.ly/2j43Icr>) -- lenses and adapters - Panasonic Lumix G II 14mm ?/2.5 prime MFT (Micro Four Thirds) lens - Panasonic Lumix G X Vario 14-42mm ?/3.5-5.6 Power- O.I.S. pancake electronic zoom MFT lens - Panasonic Lumix 45-200mm ?/4-5.6 Mega-O.I.S. zoom MFT lens - Metabones Speed Booster Nikon F/G to MFT (focal reduction) lens mount adapter - other MFT lens mount adapters (including with focal reduction), see pictures - Samyang 16mm T/2.2 VDSLR Nikon F mount DX/APS-C lens - Sigma EX DG 17-50mm ?/2.8 Nikon F mount DX/APS-C lens - KMZ Jupiter-8 50mm ?/2 Leica M39 35mm full-frame lens - Sigma Art DN 013 60mm ?/2.8 E-mount APS-C lens - Manfrotto 700RC2 lightweight video monopod/tripod head - Manfrotto 585-1 ModoSteady 3-in-1, compact stabilizer rig ---- audio equipment - Music Group/Behringer Ultra-Match SRC-9624, 96KHz 24-bit audio interface, barely used There might be more, but this is it for now. Not all is directly related to computers, but most of it has been used together with them, or can be used together with them or to document/conserve retro systems. Everything is located in the Netherlands. - MG

8 years, 5 months

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New Items from Sellam's Collection For Sale (8-bit Bonanza)

by sellam.ismail＠gmail.com

Hello Folks, I've listed a bunch of new items for sale, all of them 8-bit boxed computers and peripherals. Apple Joystick IIe and IIc (boxed) - $65 Atari 1027 Letter Quality Printer (boxed) - $45 Commodore 64 (boxed, incomplete, bad video) - $55 Commodore MPS-803 Printer (boxed) - $50 Databar OSCAR Optical Scanning Reader for TI 99/4a (boxed, incomplete) - $40 Dauphin DTR-1 "Desktop Replacement" (boxed)* - qty. 2, both work; 2nd unit is missing its stylus; both units require minor solder repair to power supply connector - $250 for first unit, $150 for second unit, $350 for both Gibson Light Pen System for Apple II/II+/IIe (boxed) - $40 IBM PC Convertible Serial/Parallel Interface (boxed) - $15 IBM PCjr Joystick (boxed, shrinkwrapped, qty. 2) - $20 each Logitech ScanMan Handheld Scanner (boxed) - $25 Radio Shack TRS-80 Deluxe Joystick Cat. No. 26-3012A (boxed) - $35 Science Fair [Radio Shack Cat. No. 28-218] Digital Computer Kit (boxed) - $35 Thrustmaster Rudder Control System (IBM and Mac) (boxed) - $25 Flight Link AV-C Flight Simulator Controls - hardware only; needs work; not boxed - $250 Wico Merlin Joystick (boxed) - $20 Yamaha CX5M Music Computer (boxed) - $165 More information is available on the VCFed forums at the following link: http://www.vcfed.org/forum/showthread.php?58709-New-Items-For-Sale-Check-th… I also created an unboxing video for your viewing pleasure: https://youtu.be/I-yu1EsR9Xg The description has a video index in case you want to jump to specific items. As always, please reply directly to me via e-mail for the fastest response. Thanks! Sellam

8 years, 5 months

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DL10 documentation

by bygg＠cafax.se

Lars Brinkhoff <lars at nocrew.org> wrote: > Hello, > > Richard Cornwell wants to implement DL10 for his KA10/KI10 simulator, > but he doesn't have any documentation for it. Any leads? First question is: since the DL10 is a DMA device for a handful of PDP11s, what is intended at the other (unibus) end of it? I have found that http://bitsavers.trailing-edge.com/pdf/dec/pdp10/periph/MP00068_DN87_Univer… contains the engineering drawings for the DL10. Also, the tops-10 source file D85INT.MAC (from the unsmon directory) contains the driver for it. If the idea is to get more terminal lines, maybe a DC10 scanner would be an easier starting point. --Johnny

8 years, 5 months

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DL10 documentation

by jnc＠mercury.lcs.mit.edu

> From: Lars Brinkhoff > Specifically, the DC76 supported by ITS. >> The DL10 was used in two DEC system products, the DC76 Asynchronous >> Communication System, and the DN87 and DN87S Universal Communication >> System Front Ends. I couldn't find any documentation on the former > Ouch, it's the former we want. Eh, no problem. The DL10 part is the same, and the PDP-11 devices in the DC76 were almost certainly standard DEC PDP-11 stuff. ITS ran its own code in the PDP-11 attached to the DL10, anyway - looking at IOELEV (in the MX-DL section), it only supported DL11's and DH11's. Those are very well documented. Noel

8 years, 5 months

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DEC quad board rack

by jnc＠mercury.lcs.mit.edu

> From: Pontus Pihlgren > Thank you for sharing Noel. Well, I thought people might find it useful. Over time,I've made a variety of shelf designs to hold my boards, searching for something that worked really well, and I liked this one so much I thought it was worth passing it on. In fact, I liked it so much that I took the dual rack (next to it in the picture) which held boards horizontally, and re-built it into one that holds them vertically, like the quad rack. For the duals, the shelf-shelf spacing (i.e. bottom of one, to the top of the next) is 5" (i.e. the repeat distance is 5-3/4", when using 3/4" planks). > In retrospect are there any measurements you would do differently if you > did it again? Nope. I made another quad rack for my workshop upstairs, and built an exact duplicate of the first one (in the picture). And I made another vertical-type dual rack, also for upstairs. About the only thing I'd have changed (had I thought of it in time) was to make that second dual rack a mixture of dual and quad shelves (which you can trivially do in this design, unlike the horizontal-format one) as I need more quad shelves, and have an excess of dual shelves. Oh well! > E.g. Have you found any boards that need higher clearance to the next? Well... There are some DEC boards which have a Berg connector on the top edge, and ones which use the later Berg (the ones with the little latch handles) sometimes place them too close to the edge. One example of this is the M7800 (DL11); they _just_ fit in a shelf with the 'proper' 10-1/4" spacing, but I have a couple shelves where, due to variation, the shelf-shelf distance is only 10-1/8", and M7800's won't go into them. The M7856 (DL11-W) is the same. For the dual shelves, the E-Rev of the M5904 (MASSBUS transceiver) places the top of the latches about 1mm from the edge of the board. (The F Rev has been re-laid out, to move the connector a but further in.) I guess it would be possible with very careful cutting to space shelves to hold that, but I elected not to; the tolerances are so slight, a bit too far, and boards will come out of slots. And some off-brand QBUS memory puts a resistor a little over 1mm from the card edge, and those also won't go. Noel

8 years, 5 months

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HP 9816 logging and skyline software -- any interest?

by dfnr2＠yahoo.com

Hi Folks! I have documentation for some forestry software, that came with my HP9816 machines.? I am not sure, but I may have a tape or disk to go with it. It's called "MSAP", for Multispan Skyline Analysis Program, and appears to be a successor to the software documented in the following links: http://bit.ly/2EjAC0N http://bit.ly/2CFp2wk I have no use for it, but it seems like it may be of historical value.? Would anyone here be interested in it? dave

8 years, 5 months

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DEC quad board rack

by jnc＠mercury.lcs.mit.edu

> From: Michael Zahorik > Thanks for responding. Sure. Not sure how much use it was, but... > I do like your wood working. Thanks.. > may give it a try. Should not be very difficult. No, as long as you have either a radial arm saw (best), or a table saw (preferably with a 'sled' - if you don't have one, probably worth making one) to cut all the slots. Like I said, if you want a drawing, let me know. A few data bits: the slot pitch (slot center to slot center distance) is 5/8"; I used 1/8" for the depth of the bottom slot (just enough to hold it in place), and 3/16" for the top (some extra, to allow for board size variation). The shelf-shelf spacing (i.e. bottom of one, to the top of the next) is 10-1/4" (i.e. the repeat distance is 11", when using 3/4" boards). Noel

8 years, 5 months

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ID board Dilog SU723A

by jcwelch＠hal-pc.org

I have this board Dilog SU7 23A Does anyone know this board?? I think it may be a SCSI controller. I cannot tell if it is Unibus or Qbus. Any help appriciated. Sincerely, John Welch

8 years, 5 months

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ID board Dilog SU723A

by shadoooo＠gmail.com

Hello, I also have a Dilog SU723A, but never managed to find any docs for it. My board is revision D. It works be very nice to find something. As the MSCP / TMSCP selection is only a matter of firmware, I wouldn't be surprised if the MSCP SU726A was the same board with different PROM. Andrea

8 years, 5 months

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DEC tape drives and cards

by js＠cimmeri.com

On 1/6/2018 5:51 AM, shadoooo via cctalk wrote: > Hello, > I have some doubt about DEC tape units and related interfaces. > > What I know about (right or wrong, please correct): > - TU80 is a Pertec drive, it needs M7454 (unibus, TS11 driver) which is a > modified Dilog DU132. No option for QBUS. > > - TS05 is a Pertec drive, it needs TSV05 (qbus, TSV05 driver) which is a > modified Emulex ???) > > - TU81 plus is LESI or Pertec, you need KLESI (unibus / qbus, TMSCP driver). > > Now the questions: > I have both a TU80 and TU81plus, and both Unibus and Qbus machines, but no > interfaces. > I would like to connect at least TU80 to unibus, and TU81 to qbus, but for > backup reasons it would be better to have both drives on both busses. > > What are the DEC or third party card which would fit better on my drives, > and/or which would offer better driver compatibility with various OSs (via > switchable configuration). > > I'm not sure about interface compatibility (Pertec interfaces could be > swapped), > and driver compatibility (what is better for RT11, what for BSD, what for > VMS). > > I would accept also some offer to my email, if somebody has something > interesting to sell (better if in EU). > > Thanks > Andrea I only have SCSI tape drives, and a TS05. But take a look at the various Emulex tape controllers. I believe TS11 and TMSCP emulations are what you'd want. TC02 Q Emulex Pertec-interface tape drive controller. Emulates TS11. Early revisions incompatible with VMS. TC02 Q Emulex Pertec-interface tape drive controller. Emulates TS11. Early revisions incompatible with VMS. Supports 1-4 Cipher F880, CDC 92181, Kennedy 6809, and Pertec F1000. TC02/FS Q Emulex .5" reel-to-reel tape controller, TC05 Q Emulex CDC Sentinel .25" cartridge tape controller. Emulates TS11. Supports CDC 92192 Sentinel. TC05/SX Q Emulex .5" reel-to-reel tape controller. TC11/N U Emulex .5" reel-to-reel tape controller. Emulating TM11/TU10. TC11/P U Emulex .5" reel-to-reel tape controller. Emulating TM11/TU10. TC11/V U Emulex .5" reel-to-reel tape controller. Emulates MT11/TU10. Needs Emulex VAX/UT software. TC12 U Emulex .5" reel-to-reel tape controller. Emulates TS11. 22-bit. Supports 1-4 Cipher F880, CDC 92181, Kennedy 6809, and Pertec F1000. TC12/FS U Emulex .5" reel-to-reel tape controller, TC13 Q Emulex Pertec-interface tape drive controller. Switchable TU81 TMSCP or TS11 emulation. TC13 U Emulex Pertec-interface tape drive controller. Switchable TU81 TMSCP or TS11 emulation. Supports 1-4 Cipher F880, CDC 92181, Kennedy 6809, and Pertec F1000. {above excerpted from M. Gentry's Field Guide) - js.

8 years, 5 months

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Seeking VT220 flyback

by aaron＠aaronsplace.co.uk

I asked a while back, but thought I'd try again. I'm looking for a replacement flyback transformer for a VT220-F, part number 16-26299-01 by TAI HO. I've found a few online, a bit higher priced than I'd like, especially after import tax. If you have one you'd be willing to sell, please get in touch. Thanks, Aaron. -- Aaron Jackson PhD Student, Computer Vision Laboratory, Uni of Nottingham http://aaronsplace.co.uk

8 years, 5 months

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AIX 4.1.3 on 7009-C20 RS/6000

by BHuntsman＠mail2.cu-portland.edu

Any RS/6000 hobbyists out there? I got my old 7009-C20 pretty tricked out and hardware carefully selected to be compatible with AIX 4.1.3, the version I'm trying to get running on it. Unfortunately, I can't get the dang thing to boot my 4.1.3 or 4.1.4 CD's. It'll boot my 4.1.5 disc, however. The 4.1.3 and 4.1.4 CD's are labeled "AIX for clients" or something like that, and I seem to recall having trouble getting other RS/6000's to boot from this 4.1.3 CD, even though it's genuine original media, and reads just fine in a working system. Anyone know a way to check what systems an old AIX 4.1 disc supports, or have C20 or similar MCA machine running 4.1.3? My other thought was to try to NIM boot it using my ThinkPad 860 as a NIM server (running 4.1.5), but it unfortunately doesn't have enough capacity to hold a lpp_source and a SPOT, and even then it looks like the 4.1.3 disc may not have enough stuff on it to support the C20 anyway... Anyway, thanks in advance!

8 years, 5 months

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To the 2901 bit slicers out there

by rdawson16＠hotmail.com

Since I know there's tons of PDP/11 geniuses here, and other gurus with a NOVA 4, and a Tektronix 4052 guy (I have the 4051): What have you done, with microprogramming this part? In your architecture, have you changed the microcode, create an instruction to enhance your machine? I would be interested in any hardware projects, stories (or even in the FPGA, I hear its a popular thing to copy); I read all of Donnamaies pages, and planing to hook up, breadboard the eval kit, perhaps reproduce the PCB if you guys are interested. What about the coding tools? ADASM? Looks long gone, how do you do microcode today? If I forget the soldering iron, can anyone show me an example on a Xilinx board, ISE, Vivado that uses the original AMD 2900 architecture? http://www.donnamaie.com/AMD_Vintage/AMD_2900_ED2900A.html Donnamaie E. White - AMD 2900 Family, Bit-Slice; Am2900 ...<http://www.donnamaie.com/AMD_Vintage/AMD_2900_ED2900A.html> www.donnamaie.com Lecture Monograph updated. The AMD 2900 Family (Am2900) Bit-Slice and other devices were supported by a number of high-level application notes. (Generated by the AMD ...

8 years, 5 months

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DEC H960 stabiliser feet. Have some questions.

by jnc＠mercury.lcs.mit.edu

> From: Steven Malikoff > That's the first actual photo I've seen of the foot, and I see what you > mean. Oh, I can take more, then; let me know what you need. > Let's regard the inner vertical surface where it mates to the rack as > the normal surface. Right; that's our reference plane. > If you have a length of something straight .. clamp it with a .. clamp > to that inner surface Umm, not possible. There are two diagonal (in the horizontal plane) ribs coming off that surface, so there's no way to clamp anything vertical to it. The _front_ (outer) surface, parallel to the reference plane, I could get to (and the clamp is a good idea). Here's what I wound up with: http://ana-3.lcs.mit.edu/~jnc/tech/jpg/StabilizerMeasurement.jpg (Yes, yes, I know, tha assumes the back face of the square is parallel to the front; it is, pretty much - I checked with a vernier calipers.) So the vertical distance from the horizontal plane at the bottom of the stabilizer, at its tip, to the bottom of the 'outer surface' (as above), is 17/32". The distance from the plane of the 'outer surface' to the end of the stabilizer is 7-9/16". The distance between the reference plane and the 'outer surface' is 7.14mm (one thing I _could_ get a vernier calipers on :-). Also, it turns out the right-hand vertical face of the stabilizer is _not_ perpendicular to the reference plane! The foot angles in slightly. The outer vertical surface is a plane along its entire length, so it's hard to notice unless you put a square on it directly: http://ana-3.lcs.mit.edu/~jnc/tech/jpg/StabilizerAngled.jpg (Sorry about the lens distortion; wanted to show that the square was along the reference plane.) I couldn't get anything clamped on to make the measurement, but the tip of the stabilizer is about 1/2" (to a /32nd, or so) in from a vertical plane perpendicular to the reference plane, and situated at the right-most location on the foot (i.e. along the edge of the square, in that photo). > A pencil rubbing on paper, or paper creasing slong eges then drawn over > with a ruler can also help to get angled surfaces. Sorry, couldn't figure that out? > Another thing, CAD can make good use of non-perpendicular measurements. > So if you're able to measure something across a diagonal or at some odd > angle, then please do so. It can be used to triangulate and improve > other taken measurements, like a point cloud. What other measurements should I take? One easy/obvious one is from the right-hand outer bottom corner of the stabilizer to the left-hand bottom corner of the reference plane: that's 8-9/32". (A lot of these corners are rounded, so exact measurements are a matter of choice....) The top inner corner of the right-hand face is 9-11/32" >from the bottom outer corner of that face (same corner as above). Noel

8 years, 5 months

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Need keyboard for IBM 528x

by camiel.vanderhoeven＠vmssoftware.com

The subject line says it all? I have just been given an IBM 5285 Distributed Data System, together with a 5222 printer. It appears to work (it came with an 8? disk that contains some user application, and the system can IPL off that disk, and brings up a prompt requesting the current date and time), but I have no keyboard with it. This brochure (http://bitsavers.informatik.uni-stuttgart.de/pdf/ibm/528x/G580-0274-00_5280 _Distributed_Data_System_Brochure.pdf) has a picture of the system and its keyboard on the front page. If anyone has one of these keyboards, please let me know! Kind regards, Camiel Vanderhoeven

8 years, 5 months

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non-PC Floppy imaging

by ggs＠shiresoft.com

Hi, I now have a number of uCode diskettes for my IBM 4331. I would somehow like to image them so: a) I have backups in case the floppies themselves go bad b) be able to investigate their contents in case I have to ?merge? the contents of multiple floppies to make a single good one These are all 8? diskettes. The complicating factors in all of this are: a) any text (e.g. strings) are going to be in EBCDIC rather than ASCII b) each uCode diskette was presumably serialized to the CPU it was for c) not sure what the ?on-disk? structure looks like d) the only 8? diskette drives that I have are in IBM (non-PC) equipment Any ideas/comments would be welcome. Thanks. TTFN - Guy

8 years, 5 months

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ADDS Envoy terminal question

by cctalk＠snarc.net

Does anyone have an ADDS Envoy portable terminal, circa 1972-1976? If so, then please let me know if what if any are the U.S. patent numbers cited on it. Thanks, Evan

8 years, 5 months

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4051 communications PACK

by bobalan＠sbcglobal.net

Hi Randy. I'm sure I have an extra com pack. I'll check storage today. Bob -- Vintage computers and electronics www.dvq.com www.tekmuseum.com www.decmuseum.org

8 years, 5 months

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DEC H960 stabiliser feet. Have some questions.

by jnc＠mercury.lcs.mit.edu

> From: Steven Malikoff > Using the new bolt info, it's refined a little more: I just took a quick glance at this, and noticed on major thing that's off: you're showing the bottom side of the stabilizer foot as at right angles to the vertical of the rack; it's not. See here: http://ana-3.lcs.mit.edu/~jnc/tech/jpg/StabilizerFoot.jpg in which I have attempted to place the ruler at a right angle to the vertical (as available in the plate where the two horizontal bolts go through). I _guess_ I could try and work out how to measure the amount of drop; maybe I can get one side of a T-square onto that vertical (on the front), get a horizontal from that, and start measuring... > I'm assuming the plate goes on after the feet have been placed on the > rack, and the #10 screws hold it all together. There are two different kinds of kickplates: http://ana-3.lcs.mit.edu/~jnc/tech/jpg/Kickplate.jpg Both have to go on after the feet, since the bolts go through these, and then through the feet, into the rack. The newer (I think) 'diagonal' ones don't cover the top of the feet, so you can tighten the large vertical bolt after the two smaller horizontal bolts. The latter are sort of necessary; there's often some play in the stabilizer foot, even with the large vertical bolt tightened. (BTW: here: http://ana-3.lcs.mit.edu/~jnc/tech/jpg/ExtensionFootBolt.jpg is an image of one of those, which I posted a while back.) > I'm guessing the kickplate is 16 guage sheetmetal..? My vernier caliper says 1.66mm (including paint, of course); whatever that turns into. Both types are the same. Noel

8 years, 5 months

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Vaxstation 4000 m60 and NetBSD

by marco＠familie-rauhut.eu

Hello List, i playing arround with my Vaxstation 4000 60.... This is a System with 40 MB Ram, 1GB Hdd, a VGA Monitor, LK201 Keyboard, VSXXXAA.B03 Mouse, and a external SCSI-CDROm dirve. With OpenVMS installed on it i have the grafical DecWindows System running. Now i have installed NetBSD 7.1 from CD via the RS232 Consoleport. My two problems now are: 1.) It is not posible to switch the console from RS232 to the VGA Monitor and Keyboard. If i switch the S3 switch in down position i can only see the NetBSD Kernel decompression. After that i see nothing on VGA and RS232 console. The System starts up anyway. After some time it is possible to connect via LAN. 2.) Is it posible to run the NetBSD X.Org on that sort of Vaxstation? If yes... Whats to do to get that running? I Think i have to fix my point 1 first. Marco Rauhut

8 years, 5 months

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Preferred way of substituting TFT for CRT Monitor

by cliff52＠gmail.com

I see a thread with the above title started by *MartinHepperle *concerning the use of modern VGA flat panel displays with video from the 98204B composite video board in the HP 9817 computer. The problem is that the high horizontal scan rate of 25khz prevents modern panels from locking onto the video. Mr. Hepperle mentions the possible use of a scan converter available from that auction house, the Gonebes GBS-8200. I write to report the successful use of this device with an HP 2009m VGA-only flat panel monitor and the subject video board and computer. I input the video to the "Y" input of the YPbPr inputs of the device. I hope someone finds this useful. Photo of converter: http://bit.ly/2qEnHV0 Resulting video: http://bit.ly/2ACPLrM -- Cliff Miller cliff52 at gmail.com

8 years, 5 months

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Preferred way of substituting TFT for CRT Monitor?

by cliff52＠gmail.com

I see a thread with the above title started by *MartinHepperle *concerning the use of modern VGA flat panel displays with video from the 98204B composite video board in the HP 9817 computer. The problem is that the high horizontal scan rate of 25khz prevents modern panels from locking onto the video. Mr. Hepperle mentions the possible use of a scan converter available from that auction house, the Gonebes GBS-8200. I write to report the successful use of this device with an HP 2009m VGA-only flat panel monitor and the subject video board and computer. I input the video to the "Y" input of the YPbPr inputs of the device. I hope someone finds this useful. Photo of converter: http://bit.ly/2qEnHV0 Resulting video: http://bit.ly/2ACPLrM -- Cliff Miller cliff52 at gmail.com

8 years, 5 months

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Tek 40xx computer users

by rdawson16＠hotmail.com

I bought the Tek 4051 on ebay today; Jason brought it to my house and it works perfectly, with about a half hour of programming instruction my 12 old daughter was plotting a cat face. https://www.facebook.com/Thelma.Franco/videos/10154277153852670/ I would like to get in touch with other users of this first personal computer, and find additional resources. Do you know where I can find an archive of BASIC programs for this? Has anybody built plug in cards in the back, mine came with a realtime clock and a "file manager", I do not know what that one does. I have some Tek scopes with IEE-488, and I will see if I can get the IEEE interface working. There was a DC300 tape in the machine: biorithm craps blackjack artillery tanks weatherwar The belt is broken in the tape, I have ordered some new DC300's and will transplant the tape. Any resources will be welcome! Randy

8 years, 5 months

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