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

Core Memory: a Visual Survey of Vintage Computers book

by jws＠jwsss.com

I just got my copy of the Core memory book. Very nice work. I noticed there is what I think may be a mis-identified system in the front. It shows an Apollo system of some sort, but identifies it as an Apollo Guidance computer. I went back and forth a few times and convinced myself it was wrong. It is a very nice book. I've got a few of the systems photographed, which is nice as well. Jim

11 years, 6 months

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Wanted: MLR1 Cleaning Cartridge and/or Media

by Kevin＠RawFedDogs.net

Classic Computer Fans, My IBM 9406-270 came with an internal MLR1 tape drive. I recently acquired a tape to test it with. I was able to initialize the tape and save/restore a small test library without errors. I ran a read/write reliability test and that failed. It said it was a 95% chance that it's a hardware problem and a 5% chance it's a media problem. The drive is asking to be cleaned. I'm hoping that it's a media problem or that the drive just needs to be cleaned. Does anyone have an MLR/SLR cleaning cartridge and/or any MLR1 media to spare? -- Kevin http://www.RawFedDogs.net http://www.Lassie.xyz http://www.WacoAgilityGroup.org Bruceville, TX What's the definition of a legacy system? One that works! Errare humanum est, ignoscere caninum.

11 years, 6 months

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Multiple IBM System/23 Datamasters, and more, available in upstate NY

by tosteve＠yahoo.com

Adam sent me this information, contact him below if interested in these "rare and valuable" systems: ================================================================================================ I have come across the following IBM system/23 models in good condition. They were covered and stored in a clean attic since the mid-late 80's. (1) 5322 - all-in-computer (2) 5324 - modular computer (2) 5242 - printer (1) 5247 - external disk storage (2) terminals - ??? We will probably store these until summer 2015 if we can't find a good home for them they might end up junked. Adam Wheeler adam at deluxedistributors.com Upstate NY =================================================================================================

11 years, 6 months

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VERY ODD BURROUGHS PHOTO...2 story pile of data binders...Pasadena? http://ww

by COURYHOUSE＠aol.com

VERY ODD BURROUGHS PHOTO...2 story pile of data binders...Pasadena? http://www.smecc.org/burroughs.htm go to bottom of page.. seems to be a 2 story pile of data binders... is this Burroughs Pasadena? who are these people? I think we have the whole Burroughs office lined up! this is from the Jack Aldridge collection at SMECC we finally got a scanner to scan larger negatives Ed Sharpe Archivist for SMECC email us please we do not check the list all the time

11 years, 6 months

1
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PDP-8 for sale

by jnc＠mercury.lcs.mit.edu

So there's a PDP-8 for sale on eBay, and it's not up with a stupidly massive BiN number, but an actual auction with a reasonable start price: http://www.ebay.com/itm/231424380705 8's aren't my thing, but I'm sure someone here would be interested in this... Noel

11 years, 6 months

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Source for N* Advantage hard disk BIOS?

by snhirsch＠gmail.com

Is this available anywhere? I have only been able to find the floppy BIOS disassembly for Horizon. --

11 years, 6 months

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PDP-8 For Sale

by bob＠theadamsons.co.uk

> Looking at the 8 listing that started this, the thing I noticed was that it has the memory sense/inhibit board > but not the address drivers or the core plane. I wonder if the latter is on somebody's wall :-( > > -tony I think he's just quoting the card numbers from the handles. Looks as though the whole (3-card) stack is there OK. Bob

11 years, 6 months

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Weekly Classic Computer Trivia Question (20141215)

by dpi＠dustyoldcomputers.com

OK, so somewhat weekly questions. Back in the days of high speed line printers there was a characteristic of drum style printers that made the output print style quite distinct. What was this characteristic? I don't miss the noise of those devices and it seemed like no matter how careful you were when changing the ribbon you would smudge your hands. Doug Ingraham

11 years, 6 months

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Strange Problem on DECstation 2100

by robert.jarratt＠ntlworld.com

I have been trying to get my 2100 working. I have been using MOP to boot the machine and try to install Ultrix, although this is not working for some other reason at the moment. Until this morning, it was booting from MOP just fine, but now it, after leaving the machine overnight and not doing anything to it, I get this when I try to MOP boot: Ultrixload - V4.5 Thu Sep 14 07:07:53 EDT 1995 Excptn: (vtr=NRML) Excptn pc: 0x807001f8 Creg: 0x30000010(CE=3,EXC=RADE) Sreg: 0x30000000(CU1,CU0,IPL=8) Vaddr: 0xaaaaaafe Sp: 0xa13fbba8 0xa13fbba8 : 0xaaaaaaaa 0x80701310 0xa0003b60 0x80700000 0xa13fbbb8 : 0xaaaaaaaa 0xaaaaaaaa 0xaaaaaaaa 0xaaaaaaaa 0xa13fbbc8 : 0xaaaaaaaa 0xaaaaaaaa 0xaaaaaaaa 0xaaaaaaaa 0xa13fbbd8 : 0xaaaaaaaa 0x80700048 0xa00039c8 0xaaaaaaaa 0xa13fbbe8 : 0xaaaaaaaa 0xaaaaaaaa 0xaaaaaaaa 0x00000000 0xa13fbbf8 : 0xaaaaaaaa 0xaaaaaaaa 0x00000001 0xa00039c8 exit(-1) The really strange thing is that if I attach a CD-ROM drive and boot off that first, then try the MOP boot after that, the MOP boot works! Before anyone asks, I have other problems which mean it won't successfully install Ultrix from the CD-ROM, and I am trying the MOP route because of this. The CD-ROM problem is something to do with the block size, I know about the block size jumper and have tried with the jumper installed and removed. I have a workaround which is to connect the CD-ROM, boot off the CD-ROM, let the CD-ROM installation fail, then unplug power from the CD-ROM and boot >from MOP. But that is horrible, and wasn't necessary until this morning. Any ideas? Regards Rob

11 years, 6 months

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Need HVPS for old Laserjet IIp printer

by charlesmorris800＠centurytel.net

I?m trying to find the high voltage power supply board for my old LaserJet IIp+ printer. Several places claim to sell them, but as soon as you order, within a day or two, they are mysteriously ?out of stock, sorry for the error?. A good used one would be fine. thanks for any help. -Charles

11 years, 6 months

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What happened to nekochan ?

by mazzinia＠tin.it

It's down since days, anyone has any idea ?

11 years, 6 months

3
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Wanted: SIMH VAX VMS tape image tester, take 2

by cclist＠sydex.com

Okay, I think I've gotten the SIMH image thing straightened out--and I've added a descriptive record after the EOM marker in the image. Just like a regular tape block; i.e. 32-bit little-endian length before and after the description. To retrieve, just to to the end of the file, read the last 4 bytes as a record length and then back up and read that much. Same contents, FORTRAN 4.5; if anyone is interested, I have what appears to be the 4.6 tape as well. Attached file link follows. I've linked 1 file to this email: * SAMPLE1.ZIP (345 KB) hosted on Box: https://app.box.com/s/hjamwz80ettlmr1kjsx8 As always, thanks much. --Chuck

11 years, 6 months

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IBM PC Server 500

by BHuntsman＠mail2.cu-portland.edu

Hi! Are there many people on here in the Portland Area? Anyone nearby have an IBM PC Server 500? Particularly, I'm looking for the foot, some drives, and the Fast/Wide Streaming RAID Adapter/A... Thanks in advance! -Ben

11 years, 6 months

3
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Wanted: SIMH VAX VMS tape image tester, take 2

by jnc＠mercury.lcs.mit.edu

> From: Fred Cisin > Maybe even create additional files, such as filename.JPG containing an > image of the label. Now that would probably be useful... > The big problem with that is the requirement that the .INF file stay in > proximity to the file containing the image of the data. Maybe STAPLE > them together? Put them all in a ZIP archive together. That archive could also include a 'readme.txt' file which explains what all the other files are, what their format it, etc, etc. Noel

11 years, 6 months

2
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For trade or sale: HP Integral PC-207

by hp-fix＠xs4all.nl

For who always wanted an HP Integral, I got one for trade or sale. It's equipped with the 1MB memory module and serial port module. Trade is preferred, I'm looking for boards, pods and manuals for the HP 64000 system, HP2100 boards DMA option, Writable Control Store are also a trade option. The Integral works perfect, the drive is cleaned and lubricated, the only thing is the printer flatcable I didn't test it. It looks clean but consider it defective, they almost always are, if it's ok it's your luck. The Integral is located in the Netherlands, shipping over the big pond should be about $100 (estimated). Shipping within Europe about 40,- euro (estimated) local pickup is always possible. If interested please contact me off-list -Rik

11 years, 6 months

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HP 16500A Missile Command

by aek＠bitsavers.org

Thought I'd ask here.. Anyone have a copy? It is mentioned in http://forums.prosoundweb.com/index.php?topic=104789.120 There is also a Breakout floating around.

11 years, 6 months

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PDP-11/34A cache

by jnc＠mercury.lcs.mit.edu

> From: Lyle Bickley <lbickley at bickleywest.com> > If your browser doesn't support FTP, use regular FTP as follows: > ftp bickleywest.com Err: ana-3>ftp bickleywest.com ftp: bickleywest.com: Temporary failure in name resolution ftp> exit ana-3>host bickleywest.com ;; connection timed out; trying next origin Host bickleywest.com not found: 3(NXDOMAIN) ana-3> Tried from another host, a long way away, using a different DNS resolver, got the same result - could not resolve name. (Sorry about the broadcast reply, all - but notice his email address... :-) Noel

11 years, 6 months

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Bedford printer

by snhirsch＠gmail.com

Any interest in a large, heavy printer? A friend of mine is moving his office and has this in storage: "Bedford System 75 printer. This is a Diablo mechanism mounted on a roller stand with Bedford's own electronics board on the back. It has an RS-232 interface." Item is located in Colchester, VT. Free to a loving household! Drop me a note if interested and I'll forward it. Steve --

11 years, 6 months

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Drivers for a HP Surestore 20XT

by teoz＠neo.rr.com

Anybody happen to have drivers for an old MO optical jukebox by HP? Model Surestore 20XT. HP?s site doesn?t seem to have anything useful. --- This email has been checked for viruses by Avast antivirus software. http://www.avast.com

11 years, 6 months

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Servers for sale

by towtechsteve＠gmail.com

? Make offer if interested D Dell - ? Description -PowerEdge 2850 Server ? Qty : (2) ? Dell - ? Description - PowerEdge 1950 Server ? Qty : (1) ? Dell - ? Description - PowerEdge 850 Server ? Qty : (3) T.O.W.E.R. Surplus Steve Swindell (412) 657-2800 [AIM: (Steve Swindell) towersurplus at gmail.com]

11 years, 6 months

2
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PDP-11/34A cache

by jnc＠mercury.lcs.mit.edu

> From: Lyle Bickley > I put a copy of the PDP-11/34 Cache manual - KK11-A.pdf on my website. Hi, got it - thanks for making this available; perhaps not the most important document out there, but for those with the hardware, fairly crucial! And sorry about the false alarm; it did indeed work fine a couple of hours later, once the DNS attack abated. Blasted crackers - they all need to be given a course of the bastinado. And to think that some of these half-wits think they are 'hackers'.... (blood boils). Noel

11 years, 6 months

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PDP-11/34A cache

by jnc＠mercury.lcs.mit.edu

> From: Lyle Bickley > I put a copy of the PDP-11/34 Cache manual - KK11-A.pdf on my website. Hi, got it - thanks for making this available; perhaps not the most important document out there, but for those with the hardware, fairly crucial! And sorry about the false alarm; it did indeed work fine a couple of hours later, once the DNS attack abated. Blasted crackers - they all need to be given a course of the bastinado. And to think that some of these half-wits think they are 'hackers'.... (blood boils). Noel

11 years, 6 months

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OT? tubes of chips

by useddec＠gmail.com

I have the following tubes (multiples of each). Looking for offers, shipping from 61853. Please contact me off list. There may be a few typos in here. I also have a variety of Z80 series chips and maybe some Z8. Thanks, Paul MCM 4116AC25 MCM 41162N MCM 511001AP80 74F373 D2127A10H D2137 SN74S1898N MK4104J-N AM29C116DC UM6116-2 HM 4716A-3

11 years, 6 months

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Goodnight, DDJ

by evan＠snarc.net

Dr. Dobbs went online-only a long time ago, but now it's being "sunsetted". http://www.drdobbs.com/architecture-and-design/farewell-dr-dobbs/240169421

11 years, 6 months

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PDP-11/34A cache

by jnc＠mercury.lcs.mit.edu

Hi, all, I'm looking for any/alldocumentation for the PDP-11/34A cache, the KK11-A. (And no, it's not in the 11/34A print set!) At least one document does exist, the KK11-A Cache Memory Technical Manual (EK-KK11A-TM-001); this page references it: http://www.pdp-11.nl/pdp11-34a/cpu/options/cache-info.html but I can't find it online (well, someone's Flickr site has an image of one page of it, but that's all). The mention there of "cut the 'cache hit line' on the DD11-PK backplane" on that web page (above) has me concerned! But in general I'd like to know more about this board. Noel

11 years, 6 months

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Keytronics foam pads revisited

by snhirsch＠gmail.com

I've fixed a couple of keyboards using hobby shop track bed foam, but have not been very happy with the "feel". That foam is considerably less resilient than the material Keytronics used. After trying a number of alternate materials, I have found something that is almost identical to the original. Take a look at eBay #171549720453 for an example. It's 5mm thick with an adhesive backing, sold for shoe inserts. I stuck 0.075" plastic sheet to the backing, then turned it over and used spray adhesive for the aluminized mylar. Worked like a charm. Just finished resurrecting a N* Advantage and the typing feel is (in my opinion) far better than the last unit I did with track-bed foam (Corvus Concept). Steve --

11 years, 6 months

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Esprit Sytems Inc. Opus 220 Terminal SM needed..

by holm＠freibergnet.de

Hi guys, sometimes in the past I've reapired some OPUS 220 Terminals from Esprit Systems Inc, Melville NY for an other company. (I still have one left over that still works and I want to keep it for my 11/83) >From that time I still have new 3 Flyback Transformers here, and now I have to repair another Terminal (some Siemens Device) where the original FBT is sold out everywhere. I'm now searching for the display schematic part with the FBT from the Opus 220 Terminal to look if I could transplant one from the new FBTs to the Siemens Monitor. Sure, I could do some reverse engeneering in the Opus Terminal but hopefully one has what I need already? Thanks in advance, Holm -- Technik Service u. Handel Tiffe, www.tsht.de, Holm Tiffe, Freiberger Stra?e 42, 09600 Obersch?na, USt-Id: DE253710583 www.tsht.de, info at tsht.de, Fax +49 3731 74200, Mobil: 0172 8790 741

11 years, 6 months

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EPROM image for Xylogics 472 (multibus Pertec controller)?

by derschjo＠gmail.com

Hi all -- Subject line covers the basics; I have a nice looking Xylogics 472 but someone has stolen the EPROM from it; anyone a) Know what size EPROM goes in this socket (24-pin) and/or b) Have an image of its contents So that I might replace it? Thanks as always, Josh

11 years, 6 months

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Recaping a Macintosh Portable

by mspproductions＠gmail.com

Hello all, I have a Mac portable that refuses to even attempt to boot. I get random junk on the screen that is different on every power up, no drive activity and no sound. I am thinking the onboard surface mount electrolytics are due for replacement. I was able to read the values off of most of the caps but I was not able to read the follow caps. C4, C5, C15 and C24. Does anyone know what value those caps are? Thanks, Matt Sent from my iPhone

11 years, 6 months

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OT : Chassis punches

by ard＠p850ug1.demon.co.uk

This is rather off-topic, although I will be using said chassis punches for classic computer restoration I am thinking of buying some chassis punches, in particular some of the ones for D connectors (and others). One brand I can easily get in the UK is Greenlee. Am I right that that is a respected manufacturer of them? Not cheap, but then I can't afford the cheap ones. Also Greenlee do an accesory called the Quick-Draw or something, a handheld hydraulic device that fits on said punches. It is darn expensive, but I want to know what advantages it gives. If it is just faster then I am not interested. If it means I can cut thicker metal then I might be. -tony

11 years, 6 months

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OT: Physical Book Prices

by chd＠chdickman.com

Back in 2007 Stan Barr posted a comment about a book that was pure computer geek porn: "Core Memory" by Mark Richards & John Alderman. I thought it would be a good stocking stuffer for myself from someone in the family. I went looking on Amazon for it. The price is $172 for a new hardcover and $78 for a used hardcover. This is ridiculous. I thought it was only school books that were at totally unreasonable prices. Now, I can get the nook electronic version for $13.99 but this is a *coffee table book*, something to be displayed. It's geek porn. So then I went and looked at some other books that are niche. I enjoy analog design and a Jim Williams book is always good. "The Art and Science of Analog Design" which is about 15 years old is $50 in paperback. I guess the printed page is dead. Gutenberg RIP.

11 years, 6 months

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Favourite text based word processing software

by mark＠wickensonline.co.uk

Hello group I'm toying with the idea of writing a simple word processing package along the lines of Wordstar for my Retrochallenge 2015/01 entry. I have used many word processing packages over the years on many machines >from 8-bit machines to mainframes. Within the following bounds I'd love to know the packages that have been the favourite of list members over the years and why. If I implement this I'd be looking to keep within the following bounds: * text only - ideally support VT terminal 80x24 or 132x24/36/48 or DOS 80x25 display size. * two printer drivers - text only and Epson LQ (or possibly IBM Proprinter) * support small range of printer specific fonts * support proportional text So a little more than a text-editor but only enough to support simple formatting and styles (bold, italic, underline for example). Ideally I'd like to implement a clean, logical design without many 'bells and whistles' concentrating on the core functionality. Kind regards, Mark.

11 years, 6 months

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Wanted: SIMH VMS quick test

by cclist＠sydex.com

Okay, I've been working with my SCSI tape stuff and I'd like someone to check a .TAP image on a VAX VMS SIMH setup. Less than a meg, but verification would mean that I've got things right (or wrong). Tape image (zipped) linked via Box. --Chuck I've linked 1 file to this email: * sample.zip (345 KB) hosted on Box: https://app.box.com/s/dy51vto78437bjciaaec

11 years, 6 months

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NatSemi QBUS 256KB memory card

by jnc＠mercury.lcs.mit.edu

So there is a National Semiconfuctor 256KB QBUS memory card which has a number of examples floating around for sale (e.g. eBay #370953707487), but which has heretofore been un-identified: the only numbers/names/etc on it are "PWB 551103882" and "PWA 980103882", which is what one usually finds them listed under. Well, it turns out that it's called an "NS23M", and a manual and print set for it, previously un-available online, are now available here: http://ana-3.lcs.mit.edu/~jnc/tech/pdp11/NS23M.pdf Can people who maintain repositories (e.g. BitSavers) please include this in their sites? Sorry about the size of the file; the original scans were 300 dpi, which in retrospect was probably a bit more than needed, but rather than throw away resolution, I've left them in like that; repository maintainers may wish to reduce the page images in resolution somewhat, to make the file a bit smaller. And a very big 'Thank You' to Mr. Steve Burgess, who was nice enough to make scans of a manual in his possession, and send them to me. If anyone finds this manual useful, please make a small donation to a local animal charity! Noel

11 years, 6 months

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confirm [...]

by abuse＠cabal.org.uk

On Sun, Dec 14, 2014 at 03:49:03AM -0600, cctalk-request at classiccmp.org wrote: > Your membership in the mailing list cctalk has been disabled due to excessive > bounces The last bounce received from you was dated 14-Dec-2014. You will > not get any more messages from this list until you re-enable your membership. > You will receive 3 more reminders like this before your membership in the > list is deleted. Is anybody else getting these messages? I've had a furkle through the mail server logs and see no evidence of cctalk bounces. I do hoever see bounces to *cctech*. I never subscribed to that list, the list server ignores unsubscription requests, and so I instituted the reject policy in a hope that the bounces would eventually cause unsubscription in the manner described above and thus achieve the desired effect without further fuss. Unfortunately, it wants to unsubscribe me from cctalk instead! Jay, would you like me to take a look at your mail server configuration to find out how the two lists have become intertwined in this broken manner? It's probably just a trivial cut-and-paste error or dodgy symlink somewhere.

11 years, 6 months

2
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PDP-11/84 SLU problem?

by jnc＠mercury.lcs.mit.edu

> From: John Rollins > it doesn't appear to transmit data from the console port on the back. I > have tried ... every conceivable switch setting on the PDP with nothing > ... > So when I power up, the LED display on the front counts down through > the numbers and stops at 4. As near as I can tell, this is something of a > good sign. Should be; my User's+Maint Guide says that means "Dialog Mode: Waiting for input". > Short of spending an entire day disassembling half the machine and > tracing every wire hoping to find something out of place, does anyone > have any ideas on what may be happening here, or what to look for? I asssume you've tried setting the baud rate with the switches on the CPU card (in case the cable to the back panel is damaged - or, more likely, the rotary baud select switch has a bad contact due to corrosion over time)? If you have the parts, fabricating a substitute serial interface cable would also be something to try. The next step would normally be to disable the on-board serial interface, and provide a substitute console interface, out on the bus. _Alas_, as far as I can tell from reading the KDB11-B User's Guide (EK-KDJ1B-UG-001), there is no way to disable the on-board serial interface. AFAIK, the prints for the 11/84 (MP-02536/MP-01955) don't seem to be online. I can't locate prints for the 11/83 (uses the same CPU board, I think) either. So I can't check to make sure that it is in fact impossible to disable the on-board serial interface. And the other next step, to look at the serial output and see if it looks OK, will be a little tricky without prints, although the KDB11-B User's Guide does contain something about it, on pp. 5-38 to 5-41 (165-168 of the PDF). Noel

11 years, 6 months

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PDP-11/84 SLU problem?

by kd7bcy＠kd7bcy.com

So in function checking the PDP-11 now that the Series/1 is out of the basement and I have room to move the unit around and plug it in, I have discovered that it doesn't appear to transmit data from the console port on the back. I have tried two terminals(WY99) and two different PC's(Windows laptop with hardware serial port and a Mac with a USB adapter) with various software, a half dozen different cables, and every conceivable switch setting on the PDP with nothing to show for it aside from a lot of time spent the last couple of weekends. So when I power up, the LED display on the front counts down through the numbers and stops at 4. As near as I can tell, this is something of a good sign. But nothing ever comes up on a connected terminal. Sometimes pressing keys on the terminal results in the RUN light turning off, other times it does nothing. This would seem to indicate that the PDP knows that something is trying to talk to it, but it is not sending data out. Short of spending an entire day disassembling half the machine and tracing every wire hoping to find something out of place, does anyone have any ideas on what may be happening here, or what to look for? ------------ John Rollins | KD7BCY | http://www.kd7bcy.com Ham-Mac mailing list http://mailman.qth.net ------------

11 years, 6 months

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SCSI tape question

by cclist＠sydex.com

I've been playing around with some SCSI tape drives and noticed something peculiar--or not intuitive. Perhaps someone can explain it. I'm doing a READ_6 (6 byte CDB) with the fixed bit 0 and a 65KB buffer. So the sense data coming back returns the residual byte count, as it should with the ILI bit set in the sense key. So far, so good. Now, when I come to a filenark, I'm expecting that the filemark bit (bit 7) will be set in the sense key. It doesn't happen, the result just comes back as 0 bytes read and a normal (NO_SENSE) sense result. The additional sense code and sense qualifier bytes are also 0. Is this normal behavior? I'dve thought that the filemark bit would be set in every case of a filemark being read. My X3T9 documents don't mention this behavior, but maybe I missed something. --Chuck

11 years, 6 months

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missing key on DEC Correspondent

by dgriffi＠cs.csubak.edu

When I put my DEC Correspondent in storage, I'm sure it had all its keys. When I pulled it out today, I found that it's missing the key in the far bottom left. Does anyone have a wrecked Correspondent from which that key can be extracted? -- David Griffith dgriffi at cs.csubak.edu

11 years, 6 months

1
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Nice LSI-11 brochure

by jnc＠mercury.lcs.mit.edu

> From: Ben Sinclair > It's now mine! Well, you didn't have a lot of competetion... :-) Noel

11 years, 6 months

2
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Favourite text based word processing software

by mark＠markesystems.com

> Date: Sun, 14 Dec 2014 17:10:07 +0000 (WET) > From: Peter Coghlan <cctalk at beyondthepale.ie> <...> > Many years after performing this somewhat less than useful task, my advice > is: > don't write your word processor in FORTRAN IV on an IBM S/370. One of my earlier programming projects as a "professional" was to port the WordMARC scientific word processing system to Apollo workstations (before they were acquired by HP). This was all done in Fortran-77, which was reasonably well supported on those systems, and included fairly easy-to-access hooks to get at graphical functions. Because of the software's heritage and fundamental design, though, it still ended up looking like a fixed-font terminal application, although running in sizable windows at least. ~~ Mark Moulding

11 years, 6 months

1
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PDP-11/84 SLU problem?

by jnc＠mercury.lcs.mit.edu

> From: Pete Turnbull > Actually, setting switch 1 (in the pack at E83, beside the LEDs) on > should disable the console ... I can't remember if that's a hardware > issue or a ROM function. The manual (Section 2.2.2.4, EK-KDJ1B-UG-001 - thanks for the tip about that section, Glen :-) sure makes it sound like it's in software: "Any input from the console results in an error message to inform the user that the console is disabled" - I doubt that functionality is implemented in the UART... :-) Noel

11 years, 6 months

2
1
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KTF11-AA chips

by jnc＠mercury.lcs.mit.edu

I've been told that KTF11-AA chips are hard to find.. I saw this on eBay: http://www.ebay.com/itm/111541083331 (I've bought from this seller before, their stuff has always worked.) Noel

11 years, 6 months

1
0
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Kaypro 10 HDD install needed

by brain＠jbrain.com

Have: working K10 working HDD Need: Someone who cna install the OS onto the K10. I have tried for some time, but it's not happening, and I think it's time to call in some help. Anyone want some monetary compensation to load a working copy of CP/M onto the drive I have? JIm -- Jim Brain brain at jbrain.com www.jbrain.com

11 years, 6 months

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Hot Wire to Cut PVA Bond Between a CRT and Its Safety Lens?

by bobvines00＠gmail.com

Does anyone have instructions or a schematic (or a pointer to a URL) on how to make a "hot wire" device to cut the PVA bond between a CRT and its safety lens? What kind of power supply (how much power), "hot wire," etc.? I'd like to build one of these "hot wire" devices, *safely*. Thanks, Bob

11 years, 6 months

5
7
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Looking for Stanford Ethernet AppleTalk Gateway (SEAGATE) source code

by engel＠multicores.org

Hi, according to http://www.megalextoria.com/usenet-archive/news021f2/b37/fa/info-mac/000016… Bill Croft at Stanford developed an Ethernet to Apple LocalTalk gateway that ran on the original SUN 68000 CPU board. Unfortunately, I cannot find the files mentioned in that post on any info-mac mirror (or somewhere else on the net): "The beta release of our Stanford Ethernet - AppleTalk Gateway (SEAGATE) is ready. On [SUMEX]<info-mac> the files are: seagate.ms documentation in -ms format seagate.hard the wirelist for the applebus interface seagate.shar1 the main gateway sources (including the above doc's) seagate.shar2 the ddt, dlq, testscc, and tftp subdirectories" If you happen to have these lying around in a dusty corner, I would be happy to obtain a copy. According to Wikipedia, this code also was the basis for the commercial Kinetics FastPath gateway product: http://en.wikipedia.org/wiki/FastPath Best wishes, Michael

11 years, 6 months

4
6
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Wanted: Sharp LM64C032 LCD panel

by tothwolf＠concentric.net

I'm looking for a Sharp LM64C032 LCD (640x480, 16 color) as a replacement for a Compaq Contura 3/25C (25MHz 386). I saw a few far-east sellers on eBay with used displays, but they want over $100 for them which doesn't seem too economical for a machine with a value of around $50 or so. Does anyone happen to have one of these LCDs sitting around in their junk pile? I recently pulled the machine from storage and was thinking of using it to run my old parallel port interface EPROM programmer, but I can't do much with it with a broken display. The sad part is I actually installed this particular LCD for the original owner back in the early '90s, but apparently it got broken sometime before he gave me the machine. (The original panel failed electronically, and it is too bad I didn't keep it back then since I could have scavenged it for parts now.)

11 years, 6 months

1
0
0 0

1964 Honeywell EDP Sales Presentation - H-200 / H-300 / H-800 Info

by billdeg＠buzz1.com

May 1st, 1964 the Honeywell Electronic Data Processing Division Bala-Cynwyd office sales team led by Stephen S. Berry (Sales Representative) and H.L. Sweatt (Branch Sales Mgr) submitted their proposal to DuPont Company to upgrade the Treasurer's Department computer system. DuPont had been running an IBM 1401 system but they were looking to upgrade. Initial discussions between the two companies appear to have been about the H-200 computer. After assessing the needs of the Treasurer's Department, Honeywell is shown to suggest that DuPont instead acquire a system comprising of combination of H-800/1800, H-300, and components. For reference Honeywell also included info about the H-200. This proposal contains pricing and system configuration. It also contains a comparison between the IBM 1401 and the Honeywell B-200. A nice set of one-page product sheets about the H-200 line are included. This is an excellent historic reference because it puts the systems in context, from the Honeywell perspective. PDF Set: http://vintagecomputer.net/browse_thread.cfm?id=589 Not sure where on BitSavers.org one would put this set as it covers multiple systems as well as a compare contrast with IBM 1401. -Bill

11 years, 6 months

2
1
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Looking for WWENG2.SYS for DECserver 900TM

by robert.jarratt＠ntlworld.com

Does anyone have this file? Apologies to those also on the HECnet list as I have posted this request there too. Regards Rob

11 years, 6 months

5
6
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Problem Installing Ultrix on DECstation 2100

by robert.jarratt＠ntlworld.com

(apologies to those on the DecTec list, looking to widen the audience) I am struggling to surmount a problem installing Ultrix 4.5 from a CD-ROM onto a DECstation 2100 (MIPS) After choosing the type of installation (basic or advanced) it tries to offer the system disk selection. However, it keeps failing because it is detecting the CD-ROM drive and saying it has an invalid block size. I can hear it spin up the hard disk that I want to install on, so it should be finding a suitable hard disk, but it looks like it keeps choking on the CD-ROM drive. I can't tell if it is failing to see the hard disk properly, but when I tried NetBSD on the same disk, and in the same machine, it is fine, so the hard disk shouldn't be the problem. Any ideas on how to resolve this? Thanks Rob

11 years, 6 months

5
5
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test-drb