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

by cctech＠beyondthepale.ie

> >Well, I installed some random jumpers and it got me to a console prompt! > Tony's not going to be pleased :-) I wouldn't recommend it either. If it were me, by the time time I got to the next problem, I would have forgetten what jumpers I put where that might have caused it. Ideally, I would suggest finding out what the jumpers do, figure out how they might affect the problem in hand and what other problems they might cause. It is possible that some of them should actually be there but were removed by a previous owner following a similar approach to problem solving :-) Consider removing the added jumpers one by one to determine which ones provide some improvement, leave the rest out and then stick a note to yourself about them inside the case. > >KA41-A V1.4 > >F_..E...D...C...B?..A...9...8...7...6...5...4_..3_..2_..1?.. > > > ? E 0040 0000.0045 > ? D 0050 0000.0005 > ? C 0080 0000.4001 >?? B 0010 0008.0280 > ? 7 80A0 0000.4001 > ? 6 80A1 0000.4001 >?? 1 00C0 0100.2004 > >Errors, but it came up nonetheless... > The single question marks are non-fatal errors and the double question marks are fatal errors. In a combination of vague recall and guessing, I think that E and D are probably due to the lack of battery and indicate problems with the real time clock and non-volatile storage. C refers to the serial interfaces and I think you get an error because one can't be tested as you are using it as a console. B refers to the memory. This is probably the only error of consequence. 7 and 6 refer to the SCSI buses and I think you get a fatal error if they are not terminated and a non-fatal error if there are no devices visible on the bus. 1 refers to the network interface and you get a fatal error if there is no network plugged in to the selected connector. (F would refer to the monochrome frame buffer if this was a VAXStation and 4 would similarly refer to an optional colour graphics card.) Regards, Peter Coghlan.

12 years, 7 months

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MicroVAX issues

by cctech＠beyondthepale.ie

> > > I vaguely recall having a 3100 where the leaking battery attacked a memory > > option board and it used to endlessly cycle around test B, which seemed a bit > > strange. I would have expected the test to have failed and terminated not > > get stuck in a loop. > > > > Did replacing the memory boards help any or was the system itself shot? > As far as I recall (and nobody ever accused me of having a good memory), when I removed the memory board, the problem went away. I don't think I had a replacement to hand. I think there is a small amount of memory on the main board so the tests should be able to run without any memory board plugged in. Regards, Peter Coghlan.

12 years, 7 months

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Looking for Spectrum QL disk interface and more

by alexandre.tabajara＠gmail.com

Hi guys! I'm in love with my Spectrum QL, but it sucks without a floppy interface. Maybe someone has a spare for a cheap, or wish to xchange for any brazilian made hardware? :o) I'm also looking for microdrive cartridges, an original manual (so beautiful...) and connectors or cable + connectors for the serial and controllers. Thanks Alexandre Souza

12 years, 7 months

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MicroVAX issues

by cctech＠beyondthepale.ie

> >I'm having trouble with a MicroVAX 3100 of unknown model. (It's a KA41-A >one, that's for sure.) > According to the OpenVMS FAQ, a KA41-A is a MicroVAX 3100 model 10 or model 20. > >It seems to endlessly test itself with the LEDs being 1001 1011. I have >removed all drives and the communications option thingy for testing. I >have also removed the (likely totally dead) battery. > >Does this require 3.8V as well? Could I just rig up some AAs or similar >in series or does it try to charge the batteries? > As far as I know, the battery is only to keep the clock running and retain boot settings while powered off. Unfortunately, the batterys tend to leak when left for long periods, possibly moreso when exposed to temperature cycling. The electrolyte seems to seems to wick along the connecting wires and attack the board near where it plugs in. I vaguely recall having a 3100 where the leaking battery attacked a memory option board and it used to endlessly cycle around test B, which seemed a bit strange. I would have expected the test to have failed and terminated not get stuck in a loop. Regards, Peter Coghlan.

12 years, 7 months

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IBM OS/2 Disks/Manuals Available

by wmachacek＠q.com

I have the complete IBM OS/2 V2.1 (2.11) package that was probably used very little. This includes all the 3.5" disks and all the manuals that go with it. I am cleaning out a lot of older materials that I have and this item is on my list of things that must go. If anyone is interested in this item, they can have it for the cost of shipping. Please contact me if you're interested or would like more information on this item. I will send a few scans of what I have upon request. Thanks. Bill (wmachacek at q.com)

12 years, 7 months

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This Raised My Pulse Today

by robert.jarratt＠ntlworld.com

> -----Original Message----- > From: Robert Jarratt [mailto:robert.jarratt at ntlworld.com] > Sent: 18 November 2013 20:29 > To: General Discussion: On-Topic and Off-Topic Posts (cctalk at classiccmp.org) > Subject: This Raised My Pulse Today > > I was at Leeds University (UK) today, when I saw this: > http://www.friendsreunited.co.uk/dec10-lab/Memory/f393c3ef-b165-41f8- > a79b-bb6e8283cc2f > > I had to do a cartoon-like double take. Sadly I could not see the machine in > question ? > > Regards > > Rob Today I walked past that room again. This time I noticed that there is an actual piece of a PDP10 in there. It looks like the console. I didn't stop because I didn't want the students inside to think I was staring at them. I am going to see if I can find out more and perhaps get a picture. Regards Rob

12 years, 7 months

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Apple ][e disk drive

by mokuba＠gmail.com

Looking for a decently cheap but good (working, don't really care about comsetic) ][e disk drive or two. Anyone got any whereabouts on one or two besides ebay? And an idea of how much I should be paying? -- Gary G. Sparkes Jr. KB3HAG

12 years, 7 months

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Our Computer Arrives

by stephane.tsacas＠gmail.com

Namely an ICT 1905E at Queens Mary College, University of London. http://vimeo.com/77387308 and also http://vimeo.com/77219593 Enjoy ! -- Stephane FreeDonne <http://www.freedonne.org> Join FreeDonne - Rejoignez FreeDonne.

12 years, 7 months

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Help identify mystery keyboard?

by akb+lists.cctalk＠mirror.to

I have a keyboard and don't know what machine it goes to; can anyone help? Pics are at: http://www.flickr.com/photos/61575639 at N06/sets/72157637832745633/ I did not see any branding on it. It has a standard 4 position modular jack on the cord (not a DEC MMJ). It has F1 thru F18 keys at top, S1 thru S6 across the bottom framing the spacebar, and a bunch of less-common special keys like "setup" and "erase". There are three stickers on the bottom, one is an inspection sticker, another says 65-2876-51, and the third says FT10. --thanks for any clues! --andrew

12 years, 7 months

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My Collection

by ploopster＠gmail.com

My pile of VAXen and mainframes has been successfully moved into my basement. Pictures of the move will be forthcoming. Thanks again to Ian for all the hard work. I couldn't have done it without your help. Peace... Sridhar

12 years, 7 months

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Apple ][ DOS source code is released! (John Ball)

by bdamer＠digitalspace.com

Folks if you want to email me directly I could put you in touch with ohers trying to assemble the Apple ][ DOS source and run it in emluation. Seems like if the PROM emulation is somehow solved we could have this thing up and running. Hey now you can soup up the DOS, add cool new commands (Nutso for those in the know) and create the DOS that could have been if the ][ had rolled forward into the 21st Century and not been [] closed down! I have a sleeve of 16 bit 6502s that was part of project Brooklyn which might have been that super Apple ][. Anyway Apple ][ forever, anyone up to making an Apple II connect to the Internet and serve up its own web page? It was done with a Xerox Star years ago. PS for all you computer history buffs see all the new stories at the DigiBarn at: http://www.digibarn.com including our published assembly code for the 8008 based 1972-73 "Sac State" machine, possibly the first complete microcomputer system (well before Homebrew). bruce

12 years, 7 months

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ServerGuide

by BHuntsman＠mail2.cu-portland.edu

Does anyone happen to have an old copy of IBM ServerGuide 2.21, that they'd be willing to part with? Many thanks! -Ben

12 years, 7 months

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This Raised My Pulse Today

by robert.jarratt＠ntlworld.com

I was at Leeds University (UK) today, when I saw this: http://www.friendsreunited.co.uk/dec10-lab/Memory/f393c3ef-b165-41f8-a79b-bb 6e8283cc2f I had to do a cartoon-like double take. Sadly I could not see the machine in question J Regards Rob

12 years, 7 months

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Looking for this amber Goldstar Monitor

by cfox1＠cogeco.ca

At 08:34 AM 30/09/2013, you wrote: >Near Cincinnati, Ohio, USA > > > What connection is on the computer? I am assuming it is a > type with nine holes and six pinjs in two rows. I turned up two monitors of the ones easy to get at. One has a bad plug, the screen lights but no video. The other one works on an IBM PC, but it has a green screen. When I get back out in the garage I will have another look. Regards Charlie Fox >-- Charles E. Fox Video Productions 793 Argyle Rd. Windsor Ontario N8Y3J8 519-254-4991 www.chasfoxvideo.com

12 years, 7 months

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Unix/Solaris Adobe FrameMaker 8?

by other＠oryx.cc

I hope this is OK to post here. I am looking to purchase a copy of Adobe FrameMaker 8. Straight from Adobe, FrameMaker had always been a pretty pricy item, but I had always managed to acquire a legal copy, sometimes years old, after the fact through eBay, etc. And through that method, I own legal copies of 5.x, 6.x and 7.x for Unix and Mac. I had hoped to somehow purchase a copy of version 8 via a similar method, but several years have passed by, and I have never seen a copy of version 8 for sale. After version 8, FrameMaker was significantly changed and released for dos/windows only. I believe that the current version is 10.x. Also, in case it isn't obvious, this is for myself at home only. Jerry

12 years, 7 months

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Alphaserver 1000 diagnosis?

by cctech＠beyondthepale.ie

> >(I think I asked this once before, but I can't remember the result and I can't >find the thread in the archive) > >I have an Alphaserver 1000 that I would like to resurrect. It periodically >hangs or reboots. When it reboots the error is usually "Machine check while >in palcode". When it hangs, the hang is so severe the halt button does not >work. Either way, it always happens within 20 minutes of booting. I ran all >of the diagnostics you get by moving the CPU card jumper (cache memory tests, >RAM tests) and they run for an hour or so with no error. (I am assuming the >diagnostic halts on error instead of just looping again, is that correct?) >During the course of these I moved the jumper to the wrong place and wiped >out SRM, so I had to reload SRM from floppy using the failsafe loader. That >worked. The SRM diagnostics will also run for as long as I want without >error. Does anyone have any idea what's wrong here or is there some kind of >XXDP-like thing I can run that will better test the machine? > I have three Alphaserver 1000A machines all of which have problems. The bcache failed on all the CPUs - there is a jumper on the CPU card to disable it and run with reduced performance (one of the SRM memory diagnostics then fails spectacularly as it divides something by the size of the cache...) On of the CPUs failed entirely. One of the machines used to randomly halt and progressed to randomly powering itself off, possibly due to it thinking a fan is faulty when it is not. On the rare occasions when I've had one working, I found that the correct positioning of the CPU in it's slot can be very critical. I've also had problems with memory failure and found (by doing lots of swapping) that the SRM can report the wrong memory slot as being the one with the problem. The power supply sits there getting hot and consuming lots of power when the front panel power switch is off making it necessary to disconnect it from the mains when not in use. I've had so much grief with mine I've lost interest in trying to fix them. Opinions of the 1000A do not seem to be very high. I think the main difference between it and the 1000 is that the 1000 has more (E)ISA slots and the 1000A has more PCI slots. I don't know if they suffer from similar reliability problems. Regards, Peter Coghlan.

12 years, 7 months

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transfering files to Unix version 6

by cubexyz＠gmail.com

Hi folks, In my quest to find earlier versions of APL\11 I have come across something called yale-apl, which is most likely from the Unix version 6 era. I can run Unix v6 under simh but I am at a loss on how to transfer binary or even text files into it. I have been able to transfer files from a Unix v7 without difficulty but v6 seems to be quite different. There is no tar utility in v6. Does anyone have any ideas?

12 years, 7 months

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PDP-11/44 Power Issues

by b4＠gewt.net

Hello all, I have a PDP-11/44 I want to get the basic tests done before I go further as I have work ahead of me. Backstory: all the cables in the rear were cut. (No big deal, I can rig up a TU58, console, power, and other cables easily). I got the mains cable connected and my Kill-A-Watt shows 13W with the 11/44 "on". This is far as I have managed to get. I do occasionally hear a clicking from the PSU...it's sporadic, unpredictable, current draw does not increase, no smoke, and no visible arcing. It confuses me. I then decided to try the "jumper pins 1 and 3 or 2 and 3 or 1 and 2" to see what would happen. The result? Nothing! I then decided to measure the voltages using pin 3 as the reference. 1 (power request) and 3: -0.01VDC, 2 (power inhibit/emergency shutdown) and 3: 2VDC, 1VAC. This strikes me as...bizarre. Should I have AC there or is my multimeter/my my multimeter skills at fault? I proceeded to follow this logic: "Hmmm. Emergency Shutdown is 2V...that could mean the emergency shutdown state is set. I notice there's an "airflow sensor" board in the PSU. Let's remove it in case it failed somehow." No change there. Any further ideas? The clicking confuses me...it's fairly quiet...something I'd expect from something arcing internally and not a relay. The patterm in't "click-click-click-click" like a relay toggling...it's more random and sporadic with no reproducable cause. It seems to come from the lefthand side (with the power cord on the left). Does anyone have the pinouts for the console cable? I'll need to make one of those up. Same with a cable for a DEUNA. -- Cory Smelosky http://gewt.net Personal stuff http://gimme-sympathy.org Projects

12 years, 7 months

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Boxes of Fanfold Paper

by jhfinedp3k＠compsys.to

I mentioned this over a year ago. I have between 6 and 12 boxes of fan fold paper which I will never use. They all have sprocket holes, of course. They are three sizes ranging from 8.5" x 11", 9.5" x 11" and 11" x 14". The 9.5" x 11" has tear off for the sprocket holes becoming 8.5" x 11". I will be sending the paper to the blue box in about 2 weeks, Local pickup in Toronto since this stuff is far too heavy to ship. I also have a number of sets of DOCs for RT-11 which I will discard within about a year. These range from incomplete sets for early versions (probably V3 and V4) to complete sets for early V05.0n DOCs. Since there are PDF files for the most recent V05.06 and V05.07 DOC sets for RT-11, it does not seem important to scan these, but maybe there is some interest. If so, please advise. Jerome Fine

12 years, 7 months

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Intel PC Bubble Card Software?

by me＠GarrettMeiers.com

Hi, We just got a couple of these Intel PC Bubble Cards in today, and they didn't have any software with them. Does anyone have the software for these? Or know where I might find a copy? Both of the two cards are pre-production versions. I am not 100% sure of the model #'s. One says Intel "MD-054", and the other says "MD # 25-54", SN#'s 180 and 191 respectively. https://www.facebook.com/media/set/?set=a.246762432147849.1073741851.237349… I also received this in as well, and can't find any information about it. The removable cassette is really heavy. Thinking maybe Bubble Memory? Any help identifying it would be great! https://www.dropbox.com/sh/rpsvjq55h7hlqog/ECmMraCxs3 Thanks, Garrett Meiers Founder, BitHistory.org & President, ConsulNIX, LLC www.BitHistory.org www.linkedin.com/in/theunixguy

12 years, 7 months

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Laserjet4 - display ghosting?

by jules.richardson99＠gmail.com

My LJ4 sometimes repeats the last character on the control panel's VF display - e.g. just now when I turned it on it said "warming upp". The repeated letter (and sometimes it's repeated just once, other times more than once) always seems to be fainter than the regular letters. Has anyone ever seen this fault before? It's no big problem*, I'm just curious as to what the cause might be. I think it only ever does it during the startup sequence, but not during normal operation, which maybe suggests it's heat-related and "fixes" itself after the printer's been on for a little while. * if it's something such as a ROM going bad then it might become more serious - although the fact that the repeated chars are dimmer than the normal ones suggests to me that it's a problem somewhere in the display output stage rather than core logic. cheers Jules

12 years, 7 months

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Apple ][ DOS source code is released!

by rthelen＠madscientistroom.org

Bruce asked: > Anyone out there want to help try to assemble to binary and test on an Apple ][ or emulator? I've got a 6502 assembler in Basic in hand (almost literally!) and am writing a 6502 assembler in Perl (sheesh, times have changed!). I've also got the source from the web page in .asm file (see attached). All I need is a simple Apple ][ emulator. (It doesn't need much, I presume.) Pointers are welcome! (There's a readme file in the attached TAR file.) -- Randy PS: The assembler I'm using a base is Richard Mansfield's Machine Language For Beginners published by Compute! Books. It's left over from my childhood. ;-)

12 years, 7 months

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MicroVAX issues

by b4＠gewt.net

Hello all, I'm having trouble with a MicroVAX 3100 of unknown model. (It's a KA41-A one, that's for sure.) It seems to endlessly test itself with the LEDs being 1001 1011. I have removed all drives and the communications option thingy for testing. I have also removed the (likely totally dead) battery. Does this require 3.8V as well? Could I just rig up some AAs or similar in series or does it try to charge the batteries? Also: I need a CK-KA630-AA for my MicroVAX II...the one I have is corroded and attempts to clean it somehow resulted in it behaving...unpredictably. Any help greatly appreciated! Thanks! -- Cory Smelosky http://gewt.net Personal stuff http://gimme-sympathy.org Projects

12 years, 7 months

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Apple II DOS source code

by dzubint＠vcn.bc.ca

Sorry if this information has been posted before, but I'm excited: The original Apple ][ DOS *source code* is now available! http://appleinsider.com/articles/13/11/12/historic-apple-ii-dos-source-code… ---------------- Thomas PDP-11 Dzubin Calgary, Vancouver, or Saskatoon CANADA

12 years, 7 months

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Apple ][ DOS source code is released!

by ball.of.john＠gmail.com

>Folks I just wanted to let you know that a key project in computer >history that has taken a year to complete has resulted in the Apple >][ DOS source code and other key 1978 Apple documents being released >to the public (backing by Apple). > >Take a look at the DigiBarn pages at: >http://www.digibarn.com/collections/business-docs/apple-II-DOS/index.html >(including last April's CNET story with a lot of background) and my >scans of many of the documents (but not the source listings) > >And Len Shustek's blog entry at the Computer History Museum which >also has the actual documents and FULL SOURCE of the October 1978 >delivery all converted to text and corrected at: >http://www.computerhistory.org/atchm/apple-ii-dos-source-code/ > >Anyone out there want to help try to assemble to binary and test on >an Apple ][ or emulator? > >bruce Way to go bruce! I remember you saying that you wanted this out before the end of the year. I'll see if I can get it to churn on the II+. John

12 years, 7 months

1
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IBM 5110 start-up halt

by wayne.smith＠charter.net

Not sure if anyone gave you the link to the MIM, but if not, here it is: ftp://ftp.informatik.uni-stuttgart.de/pub/cm/ibm5110/SY31-0550-1_IBM5110_MaintenanceInformationManual_Jun1978.pdf Wayne

12 years, 7 months

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AIX installation media for Motorola Powerstack E1

by plamenspam＠afterpeople.com

Hello, Currently I'm running Solaris 2.5.1 on the PowerstackE1 , but would like to dual boot AIX/Solaris. My searches for compatible installation media didn't get any results. If someone still have it, please let me know. Thank you in advance! Plamen

12 years, 7 months

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Televideo 803 keyboard available

by akb+lists.cctalk＠mirror.to

I've got a keyboard for a Televideo 803 free to good home if you pay shipping. Intact, worked when last used, I think no cable. Located in Boston, MA. If interested, write me at response at mirror dot to

12 years, 7 months

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IBM 5110 start-up halt

by buddy.holman＠gmail.com

I have managed to acquire an IBM 5110 Model 2. The machine immediately process checks on start-up and shows square blocks on the display. I've opened the machine up and re-seated all of the cards, but with no change in behavior. Anyone have some wisdom for me on the 5110? Thanks! Ellis

12 years, 7 months

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SCSI-to-CF bridges?

by captainkirk359＠gmail.com

On 7 November 2013 14:36, Zane H. Healy <healyzh at aracnet.com> wrote: > Does anyone have any experience with replacing aging 50-pin (or even 68-pin > and SCA) SCSI drives with a SCSI-to-CF bridge? I'm thinking specifically > for DEC hardware (PDP-11, VAX or Alpha). > I would like to posit an additional question to the group: Does anyone know of a SCSI-to-whatever bridge that will let a CMD CQD-220 on a PDP-11 see the attached (modern) media as a tape drive? I ask, as I have no idea how to run the RSTS/E 10.1 installations off of anything other than tape. And while I could always build my RSTS/E 10.1 system disk on SIMH I'd much rather experience the installation experience as close as possible to what it was really like on an actual PDP-11. Cheers, Christian -- Christian M. Gauger-Cosgrove STCKON08DS0 Contact information available upon request.

12 years, 7 months

2
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IBM 5110 start-up halt

by Wayne.Smith＠warnerbros.com

Date: Wed, 13 Nov 2013 11:59:26 +0100 (CET) From: Christian Corti <cc at informatik.uni-stuttgart.de> To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Subject: Re: IBM 5110 start-up halt Message-ID: <alpine.DEB.2.10.1311131147150.20619 at linuxserv.home> Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed > See also the bring up chart on page 4-7 of the MIM. > > Christian > > [1] IBM 5110 Computer Maintenance Information Manual Not sure if anyone gave you the link to the MIM, but if not, here it is: ftp://ftp.informatik.uni-stuttgart.de/pub/cm/ibm5110/SY31-0550-1_IBM5110_MaintenanceInformationManual_Jun1978.pdf Wayne ------------------------------ Message: 5 Date: Wed, 13 Nov 2013 05:36:22 -0800 (PST) From: Thomas Dzubin <dzubint at vcn.bc.ca> To: cctalk at classiccmp.org Subject: Apple II DOS source code Message-ID: <Pine.LNX.4.64.1311130533400.19217 at vcn.bc.ca> Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed Sorry if this information has been posted before, but I'm excited: The original Apple ][ DOS *source code* is now available! http://appleinsider.com/articles/13/11/12/historic-apple-ii-dos-source-code… ---------------- Thomas PDP-11 Dzubin Calgary, Vancouver, or Saskatoon CANADA ------------------------------ Message: 6 Date: Wed, 13 Nov 2013 14:26:53 +0000 From: John Many Jars <john at yoyodyne-propulsion.net> To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Subject: Re: Apple II DOS source code Message-ID: <CAEvVyqG1bMD=P4r-m9G8z=uCXLHg+RupCG8Fz-agfJ6kxANXdQ at mail.gmail.com> Content-Type: text/plain; charset=ISO-8859-1 That's great! Now if they would only release the source to the Lisa Office System.... On 13 November 2013 13:36, Thomas Dzubin <dzubint at vcn.bc.ca> wrote: > Sorry if this information has been posted before, but I'm excited: > > The original Apple ][ DOS *source code* is now available! > > http://appleinsider.com/articles/13/11/12/historic-apple-ii-dos-source > -code-now-available-to-download > > ---------------- > Thomas PDP-11 Dzubin > Calgary, Vancouver, or Saskatoon CANADA -- Yoyodyne Propulsion Systems: "The Future Begins Tomorrow" Visit us at: http://www.yoyodyne-propulsion.net -------- "It's not just about me and my dream of doing nothing. It's about all of us. I don't know what happened to me at that hypnotherapist and, I don't know, maybe it was just shock and it's wearing off now, but when I saw that fat man keel over and die - Michael, we don't have a lot of time on this earth! We weren't meant to spend it this way. Human beings were not meant to sit in little cubicles staring at computer screens all day, filling out useless forms and listening to eight different bosses drone on about about mission statements." -- Peter Gibbons End of cctalk Digest, Vol 123, Issue 15 ***************************************

12 years, 7 months

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Apple ][ DOS source code is released!

by bdamer＠digitalspace.com

Folks I just wanted to let you know that a key project in computer history that has taken a year to complete has resulted in the Apple ][ DOS source code and other key 1978 Apple documents being released to the public (backing by Apple). Take a look at the DigiBarn pages at: http://www.digibarn.com/collections/business-docs/apple-II-DOS/index.html (including last April's CNET story with a lot of background) and my scans of many of the documents (but not the source listings) And Len Shustek's blog entry at the Computer History Museum which also has the actual documents and FULL SOURCE of the October 1978 delivery all converted to text and corrected at: http://www.computerhistory.org/atchm/apple-ii-dos-source-code/ Anyone out there want to help try to assemble to binary and test on an Apple ][ or emulator? bruce

12 years, 7 months

1
0
0 0

SCSI-to-CF bridges?

by cctech＠beyondthepale.ie

> >Does anyone have any experience with replacing aging 50-pin (or even >68-pin and SCA) SCSI drives with a SCSI-to-CF bridge? I'm thinking >specifically for DEC hardware (PDP-11, VAX or Alpha). > In 2008, I bought an Acard AEC-7720U 50pin SCSI to IDE adapter for EUR 60 plus an IDE to CF adapter from Hong Kong for less than EUR 2. Unfortunately, I think the price of the former has increased since. The setup works nicely with my Alphas to read CF cards directly and SD and XD cards via yet more adapters purchased in a camera shop (except for some unreliability reading the XD cards.) I've not done much writing. A PWS 500a I was given had an IDE disk in it and a 68pin SCSI to IDE adapter (also Acard) which seems to work nicely, although I have not tried booting >from it. > >Also given the fact I have a good supply of drives, how cheap can >such bridges be obtained? Believe it or not, part of what I'm >thinking of is noise. > I've not had any noise problems with this setup :-) Regards, Peter Coghlan.

12 years, 7 months

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UNIVAC 1219 / MK 152 Bootstrap Loader and Rep. of Instructions

by billdeg＠degnanco.com

Scanned more docs related to the the UNIVAC 1219, also known by the US Navy as the MK 152 Computer. MK 152 Computer Repertoire of Instructions Reference Card http://www.vintagecomputer.net/univac/1219/UNIVAC_MK%20152%20Computer%20Inst ruction%20Set.pdf Toggle in program to print addresses set by the bootstrap loader (or any block of memory) http://www.vintagecomputer.net/univac/1219/UNIVAC_1219_Print_Addresses_Boots trap.pdf UNIVAC 1219 / MK 152 Bootstrap Loader http://www.vintagecomputer.net/univac/1219/UNIVAC_1219_Bootstrap.pdf Brochure scan and Duane Craps' 1219 emulator: http://vintagecomputer.net/univac/1219/ Bill

12 years, 7 months

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Scrapping 2x RA81 + parts, 4x RA72

by aperry＠snowmoose.com

On 11/10/13, 10:00 AM, Rich wrote: >> If I remember right the RA81 is the complete cabinet (the actual >> >HDA inside is called something else), but the RA72 is just a drive, >> >correct? > No, it's called "the RA81 HDA". We had 6 RA81 drives in 2 low-boy > cabinets at LOTS, with redundant HSC50s and an SC008 putting them > together with 3 DEC-20s and a System Concepts SC-30M on a CI network. > With an MTBF of 6 months, DEC Field Circus replaced an HDA roughly > every month until the manufacturing error was discovered[1]; our FE > sincerely hated those drives. I tried to give the Living Computer Museum parts from a RA81 that I disassembled. I also tried to give it away here and within the local SRCS group. I ended up giving the to RePC, a local computer recycler that has a small museum in one of their stores. I still have another RA81 and two RA82s. The HDA is the sealed assembly with the platters and heads and was sometimes (often?) replaced separately from the rest of the drive. The HDA is installed in a chassis that forms the rest of the drive and mounts in a standard rack. The drive motor, the logic boards, front panel switches, power supply, etc. are inside of the chassis, outside of the HDA. alan

12 years, 7 months

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My Windows 3.1-based 386-DX40 on YouTube

by terry＠webweavers.co.nz

A look at my Windows 3.1-based 386-DX40 PC-Compatible. The last one on the list, although video re-makes of earlier systems are planned at some stage. http://youtu.be/qoN0HhDnRR8 There are also a few strays I need to clean up, get working and add to the collection. These might also see time in front of the camera. Terry

12 years, 7 months

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Looking for a MicroController Recommedation

by robert.jarratt＠ntlworld.com

I have been mulling a project to emulate MFM disks (DEC RD53 and RD54 in particular) at the disk-to-controller interface. Before anyone asks, I don't want to interface to Qbus (or any other bus) because I want to emulate the least possible hardware and keep my RQDX3 cards working. And yes, I know this has been talked about many times before, but I want to actually start trying this out. My idea is to use some kind of MicroController, talking to specific interfacing logic that drives the lines, and using SD memory for the actual storage. I am considering two approaches: 1. Just record the flux transitions in memory and play them back. This needs me to be able to sample and drive the data lines from the microcontroller at 25ns intervals because the pulse width of the flux transitions is 50ns. This would need a pretty fast microcontroller, but is my preferred solution as it seems the most general. 2. Build custom logic that does the sampling and encodes/decodes the data in 8-bit bytes, so that the microcontroller would only need to read data at a rate of 1 byte every 1.6us. I'd prefer not to do this as it requires me to understand the encoding (not too hard I suppose) and build custom logic, and makes the solution possibly a little less general. I would need a development board that makes it easy to interface to the SD memory on one side and to the custom interfacing logic on the other side (perhaps with a serial interface for debugging too), remembering that there is a 50-pin connector, although only 20 of these are signals, the rest are either reserved or ground. I would need enough onboard memory to store a whole cylinder which is just over 150Kbytes on the RD54. If I am successful I would then like to be able to make several more of the devices, so I would need something that is not too expensive to replicate. I am not sure at this point whether development boards are a good idea for the replication or if I would need to then source the actual microcontroller chips myself and make my own boards. If I have to make my own boards then I would need a microcontroller that is available as a DIP because I am pretty sure surface mounting is going to be beyond me; it would also have to be simple enough for me, who is not an expert in electronic design, to build the other components like the volatile and non-volatile memory, SD interface etc. Looking for recommendations for a suitable microcontroller that does not cost the earth ... Thanks Rob

12 years, 7 months

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Free: MS-DOS and early Windows software & docs

by snhirsch＠gmail.com

I am drowning here. If anyone wants it you can pickup free in Burlington, VT. Unfortunately I'm very much not retired and simply don't have the time to deal with shipping. There are probaby 2-3 large storage bins of boxed product, docs without software and software without docs - and, gasp, software WITH docs! There's a limit to how much one can accumulate and I think I'm past it :-). For extra credit: I can probably arrange to hand over a fair amount of miscellaneous junk, err, classic stuff if you have the room to take it. Take advantage of this special offer before the snow flies! Steve --

12 years, 7 months

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More Shameless vintage computer trafficking.

by ittybittybytes＠gmail.com

I'm putting up for auction another pdp11/73 (# 251376445034) with some extras on eBay tonite at around midnite PST. Any list member who buys this, identify yourself, and I'll throw in a free working VT510 terminal. They LK411 keyboard broke but it has a PS/2 port so I'll throw in a dec pc keyboard, but you'll have to remap it! free to winning bidder, you pay shipping (weight 20#) Cheers TomP

12 years, 7 months

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Free: A few miscellaneous Sun items

by kurt.m.nowak＠gmail.com

I have the following things I was going to take to the e-waste place 3x Sun Type 5 optical mice with the hard optical pads P/N 370-1398-02...Need cleaning and the felt pads are in bad shape..Tested working...come with the pads 1x Sun Type 4 mouse...clean and good felt P/N 370-1170-01 Other optical pads of varying resolution...most are Sun Sun Speaker P/N 540-2220-04. Not tested. I would love to throw everything into a $16.85 flat rate shipping box. email me if interested.

12 years, 7 months

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Here’s how The Post covered the ‘grand social experiment’ of the Internet in 1988

by stephane.tsacas＠gmail.com

http://www.washingtonpost.com/blogs/the-switch/wp/2013/11/04/heres-how-the-… With a nice picture of a 11/780. -- Stephane FreeDonne <http://www.freedonne.org> Join FreeDonne - Rejoignez FreeDonne.

12 years, 7 months

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followup on NOS DEC CRTs -

by jack.rubin＠ameritech.net

As a follow up to Chris' posting, I have put together a group buy and we have now sold more than 35 of these tubes;? at this point, you can order as few or as many tubes as you wish as long as stock is available. If you want in on this, funds must be in my PayPal account - j at ckrubin.us - as soon as possible but no later than Thursday, November 14. Please send funds "To a Friend" so I don't get charged a PayPal fee for doing this pass-thru ordering! I will place an order on Monday, November 11, and then again toward the end of the week and the tubes will be shipped to you directly from EMI. If you have a phosphor color preference, let me know and I'll forward that to EMI, but no guarantees as to color or anything else. ? Usual disclaimer - I have no financial interest in this transaction or in EMI Solutions - I'm just trying to save these tubes from being scrapped. ? Jack

12 years, 7 months

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Followup on NOS DEC VR201/VT220 CRTs

by j＠ckrubin.us

Following up on Chris' earlier notice, I've put together a group buy with EMI Solutions and we've already taken orders for 33 tubes, so you can now purchase any number (until stock is gone - they have about 50) for $25 each, including shipping. For international shipping, contact them directly - webmaster at emisolutions.com . If you want in on this, send me $25/tube through PayPal - j at ckrubin.us Send money as "Payment to a Friend" - I don't want to get dinged by PayPal for being a nice guy. Let me know if you prefer white or green phosphor, though there is no guarantee as to color (or anything else) and make sure to send a mailing address. I will place an order on Monday and then on following days if necessary. Usual disclaimer - I have no financial interest in this transaction or in EMI Solutions - I'm just trying to save these tubes from being scrapped. Jack

12 years, 7 months

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P112 kits available

by dgriffi＠cs.csubak.edu

After shipping all the P112 kits preordered through Kickstarter, I have a small number (six) of kits available for immediate shipment. Once these sell, I will order some more parts and then there will be approximately 80 more. There's a Paypal button on the P112 webpage at http://661.org/p112/ to make it nice and easy. If you're not on speaking terms with Paypal, email me and we'll work something out. -- David Griffith dgriffi at cs.csubak.edu

12 years, 7 months

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<Plug> Hewlett-Packard PA-RISC e3000 MPE/iX Servers

by jesse＠cypress-tech.com

this is brief introduction to Cypress Technology, Inc. We specializes in selling servicing Hewlett-Packard MPE/iX e3000 servers and all related peripheral items. We sell the entire line of HP's HP 3000 servers Below is a link to some HP e3000 A and N Class boxes that we have for sale, we have many more... e3000 A400 Server www.ebay.com/itm/380371480845 <http://www.ebay.com/itm/380371480845> e3000 A500 Server www.ebay.com/itm/380763393080 <http://www.ebay.com/itm/380763393080> e3000 N4000 Server www.ebay.com/itm/380371480806 <http://www.ebay.com/itm/380371480806> We also buy and sell HP 9000 / Itanium servers, HP-UX workstations, and related peripherals. For more information what we can do for your HP hardware needs please visit our site: www.cypress-tech.com <http://www.cypress-tech.com> Thanks Jesse Dougherty Cypress Technology, Inc. 13790 Roosevelt Blvd -- Unit #3 Clearwater, FL 33762 Phone 412-589-3779 jesse at cypress-tech.com

12 years, 7 months

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NOS DEC VR201/VT220 CRT tubes

by chrise＠pobox.com

EMI Solutions is going out of business and is clearing stock. They've offered to sell these tubes - DEC P/N 70-19578 VT220 TUBE & CRT ASSEMBLY for $37.50 + $15 shipping/ea or bulk qty of (10) for $250 including shipping in the US. They will ship internationally but contact them for costs. Jack Rubin and I have already purchased a few and they are as advertised, new-old-stock, shipped in the original carton with foamed-in-place support. The part number actually crosses to a VR201 CRT + bezel assembly but the bezel is easily removed by loosening a single screw. The VT220 and VR201 CRTs themselves are interchangeable. Phosphor colors are white, green and amber, subject to availability. I have successfully swapped the tube in an old VR201 that suffered from severe "cataracts" and it was about a 10 minute job. The monitor now works and looks great-- other than the color mismatch between the very yellowed housing and the fresh DEC beige of the new bezel. Good deal-- move quick as unsold units go to scrap at the end of the month. Contact Claudia, <webmaster at emisolutions.com> Nothing in this for me other than helping people keep their VR201 and VT220 looking sharp and these tubes from going to scrap. Chris -- Chris Elmquist

12 years, 7 months

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Scrapping 2x RA81 + parts, 4x RA72

by binarydinosaurs＠gmail.com

Folks, We have the above going on the scrap pile in Cambs, UK. Shout if you want me to save anything! More to come as we clear out space in our 'hasn't moved for 20 years' space... -- adrian/witchy Owner of Binary Dinosaurs, the UK's biggest home computer collection? www.binarydinosaurs.co.uk

12 years, 7 months

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SCSI-to-CF bridges?

by healyzh＠aracnet.com

Does anyone have any experience with replacing aging 50-pin (or even 68-pin and SCA) SCSI drives with a SCSI-to-CF bridge? I'm thinking specifically for DEC hardware (PDP-11, VAX or Alpha). Also given the fact I have a good supply of drives, how cheap can such bridges be obtained? Believe it or not, part of what I'm thinking of is noise. Of course on the PDP-11 front I booted RT-11 on a Raspberry Pi for the first time yesterday, and was quite pleased with the performance. Zane -- | Zane H. Healy | UNIX Systems Administrator | | healyzh at aracnet.com | OpenVMS Enthusiast | | | Photographer | +----------------------------------+----------------------------+ | My flickr Photostream | | http://www.flickr.com/photos/33848088 at N03/ | | My Photography Website | | http://www.zanesphotography.com |

12 years, 7 months

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S-100 bus extender PCBs ordered!

by LYNCHAJ＠YAHOO.COM

Hi Thanks everybody! There are now enough pre-ordered S-100 bus extender PCBs so I ordered a batch. They should be here in early December 2013. There should be plenty of boards available so if you want to pre-order yours feel free. These are the nice S-100 bus extenders with logic probe, signal ports, grounds, indicator LEDs, fuses, etc. They are very handy for system debugging and are improved over the last version. Thanks and have a nice day! Andrew Lynch

12 years, 7 months

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PDP-8 sale in Glenview, IL USA

by jim＠deitygraveyard.com

Please contact Mark directly. I have nothing to do with this. I just saw Douglas Jones forward it on to PDP8-Lovers and figured I'd pass it along. > From: "Mark E. Levy" <mlevy at etaent.com> > Date: November 7, 2013 8:21:20 AM CST > To: xxxxxxx > Subject: PDP8 Hardware for sale > > I have the following PDP8 Hardware for sale to a good home. I'm doing very well since a > diagnosis ... , but playing with these "toys" is no longer where I'd like to spend my time, so I'd > like them to go to someone who will appreciate them. > > ? PDP8 Straight-8 circa 1968 > ? PDP8/e, complete > ? RK05 & Controller > ? ASR33 Teletype > Everything worked at last power up, but that was a number of years ago. > > Best offer, all or part, buyer responsible to move or pickup. > > Located in Glenview, IL USA, approx. 25 miles north of Chicago.

12 years, 7 months

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