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

Rebuilding a Hawley Mark II X063X mouse?

by tothwolf＠concentric.net

Over the weekend while moving another project out of long term storage, I also unpacked the Hawley Mark II mouse for my SGI IRIS 1400 since I wanted to see what it might take to repair its cord. When I originally acquired the machine, the outer insulation of the mouse's cord was just beginning to crumble at the ends, but 10+ years later, it has now become extremely brittle and is completely flaking off the cable. The cable they used for the mouse is very small diameter [my mouse has the same cord as this one: http://www.oldmouse.com/mouse/hawley/X063Xvanilla.shtml] and I don't think I would be able to find a multiconductor cable that small to replace it. The individual conductors are still tightly twisted together along with a fiber wrapping of some sort. Since the inner conductors appear to still be intact, I'm considering using heatshrink tubing to replace the outer insulation, but I'm not sure if this would be the best approach or not. In addition, the main ball doesn't turn very well and the rollers/contacts inside the mouse also don't move. I've not yet disassembled it any further than just lifting off the outer cover since I'm not sure of how involved of a project this thing is going to become. [I was initially hoping it would be a minor project to repair the cord but it's starting to look like repairing this mouse may be pretty involved.] Has anyone else rebuilt one of these mice, and if so are there any gotchas I need to be watching out for?

11 years, 8 months

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FCO for KDA50-Q?

by nw＠retroComputingTasmania.com

I have some Emulex SD590 drives which require a controller like the DEC KDA50-Q (M7164+M7165) or KDA50-QA. I found a KDA50-Q controller on eBay, but also discovered that the KDA50-Q has a rather bad (show-stopper) bug that was fixed in later revisions, detailed here: http://deathrow.vistech.net/~cvisors/DEC94MDS/kda50dol.txt >From that description I understand I need either revision D1 or D2 of the M7164 module. What should I be looking for on the board that would indicate it has had the FCO applied? is it an option to re-program the 6 PROMs that appear to be involved? Alternatively, if anyone has the two board set (M7164 and M7165 joined with the 40-pin and 50-pin cables) along with the cab-kit up for sale I would be interested in discussing further. thanks. Ps Thanks Jay for getting cctalk back online, well done!

11 years, 8 months

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Thanks for getting the list up again!

by mattislind＠gmail.com

I should have written it in my previous post: Thanks a lot, Jay, for getting the list working again! /Mattis

11 years, 8 months

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Hello world!

by drlegendre＠gmail.com

Sorry to hear about the trouble, Jay. Thanks for taking care of the list.. -Bill

11 years, 8 months

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Second/Final Attempt - Control Board for Mitsubishi M2896 8" FDD

by cctalk＠fahimi.net

Long shot here but does anyone have a control board (or two) for an 8" internal Mitsubishi M2896-63-02U either from a dead drive or as spare parts they may want to part with? Thanks. -Ali

11 years, 8 months

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CD carriers FFS from 95006

by shumaker＠att.net

Standard CD carriers/trays for Sun type CD drives... I have 11 of them... no physical damage although some have mild plastic yellowing. All appear functional/usable. Free for shipping from 95006 (Haven't tried but I suspect they will all fit a small flat rate box if you want the lot). Steve

11 years, 8 months

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FW: Comparison of Desoldering Stations

by robert.jarratt＠ntlworld.com

Sending again since the rebuild of the list probably lost the first post (apologies if this is duplicate). Thanks Rob From: Robert Jarratt [mailto:robert.jarratt at ntlworld.com] Sent: 02 November 2014 18:29 To: General Discussion: On-Topic and Off-Topic Posts (cctalk at classiccmp.org) Subject: Comparison of Desoldering Stations I need to buy a desoldering station and in my price range it seems I have the choice of two: Duratool (sold under several other brands too) D00672: http://cpc.farnell.com/duratool/d00672/desoldering-station-uk-eu-plug/dp/SD0 1384 Aoyue 474A++: http://www.amazon.co.uk/AOYUE-Aoyue-474A-Desoldering-Station/dp/B00FDOP2DI/ Has anyone tried both of these to give me an idea which is the better buy? Thanks Rob

11 years, 8 months

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Small change in mailing headers

by snhirsch＠gmail.com

Thanks for getting the list going again. Probably not a big deal, but the 'Sender' header now has quotes around the string 'cctalk' and required a slight tweak to my procmail rules. Steve --

11 years, 8 months

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DecWriter / LA30P with unibus

by mattislind＠gmail.com

For quite some time I have been pursuing an effort to repair a PDP-11/04 system and make it running under CAPS-11. I have had it successfully boot >from the TU60 tape drive. The plan is now to attach a contemporary console terminal to it. I happen to have a LA30P which looks suitable and would make it a nice looking system. I have documented the effort here: http://www.datormuseum.se/computers/digital-equipment-corporation/pdp-11-04 The LA30 is now working fine but the problem is that I don't have the M7910 or M791 card that make up the LC11 Unibus option as this terminal was once upon a time connected to a PDP-8/E instead. Is there anyone that have a M7910 or M791 card who wants to sell or trade it for something? During the restoration process of the LA30 I found that it is using quite uncommon paper. I needs 9-7/8 inch (250 mm) wide paper. Is there a source for this kind of paper somewhere else than in the USA? If there is no M791 or M7910 available I have to either make my own M791 or make a serial / parallel converter to go into the LA30P (I guess that no one has the M7389 and M7731 boards that make it a LA30S, or?). When looking for more information on the LC11, there were limited amount available on the net. I did find the LC11 Decwriter System Manuel (pages 4-2 and 4-3 was missing which is quite annoying) but not the LC11 Decwriter System Engineering Drawings. Anyone knows an online source for that one? /Mattis

11 years, 8 months

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What quad QBUS boards work in a Q/CD backplane?

by jnc＠mercury.lcs.mit.edu

> From: Mark J. Blair > Where is the modified Unibus used? ... I tried to cram in every bus I > could find using the same physical form factor, but if MUD is an > especially niche application then maybe it doesn't need to be in there. > From: David Riley fraveydank at gmail.com > Typical Unibus peripherals are quad-width; those that are hex-width are > *generally* only in it for the additional power .. There are certainly > exceptions, but I don't know what they are. > If someone is trying to build Unibus memory, they'll probably be > interested in the modified Unibus pins. Otherwise, it's somewhat > unlikely. I'm on the road, and away from my documentation, but I definitely would not call MUD 'niche' - it's pretty much the standard hex-height UNIBUS spec in all the later UNIBUS backplanes. Here's what I can recall: in the beginning, there were what were called 'Small Peripheral Controller' (SPC) slots, which took quad-high cards in the C-F connectors. Older, simpler interfaces (think DL11, RX01/2 controllers, etc) were quad cards which went in the C-F connectors of an SPC slot. (More complicated interfaces, like the RK11, RP11, DH11 etc were entire custom backplanes/system units - 4 slot for the RK11, larger for the DH11, IIRC.) I forget what was in the top two connectors (A-B) of the old SPC slots (e.g. on the early DD11s - the name of the early 4-slot backplane units). Of course, in the 1 and 4 slots, the A and B connectors had 'standard UNIBUS' so one could plug in either a jumper module to the next backplane (earlier M920, later M9202 - once they started dealing with lumped loads), or a UNIBUS cable (the big flat white one) to another system unit. So then hex cards started to become common (and basically all later UNIBUS interface cards are hex cards - from early ones like the DZ11 and RL11, to the latest ones like the UDA50, DELUA, etc). Around then, the MUD spec came in: in a MUD slot, the bottom 4 connectors (C-F) are still SPC (so you can plug any quad SPC board into the C-D connectors of a MUD slot), but the top two connectors (A-B) are subtly different. I _think_ many (most?) hex boards are MUD only, but I would have to check on that. When I get back, I will check and see what the A-B connectors in an old SPC slot are - and if any hex UNIBUS cards use that, instead of MUD. (Of course, any hex card that _only_ uses SPC pins can go in either kind. I don't know if there are any hex cards are like that - or perhaps many are, I just don't know off the top of my head.) > From: David Riley > Qbus shares Unibus' defined +5v and GND pins and adds a few more > dedicated grounds ... I'm honestly a little surprised they didn't make > the power pins a little more broadly compatible (or at least less > likely to cause damage) in general Well, I can kinda-sorta understand the UNIBUS and QBUS not being safe from each other. It's sort of 'intuitively obvious' that one shouldn't plug a card >from one into the other. (And remember, the QBUS started out as almost all dual-high cards, except the LSI-11 CPU card, another differentiation.) But the Q/Q and Q/CD thing is, to me, at least, different - one has to know there are two kinds of QBUS, and not to plug cards for one into the other (except the many cards that can go both ways). But now that I think about it, I guess there are sorta two kinds of UNIBUS too - MUD and non-MUD. And I think I even recall someone damaging a card by plugging a non-MUD card into a MUD slot (or vice versa, I don't recall the details any more). Noel

11 years, 9 months

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Inside Solaris newsletter

by silent700＠gmail.com

I have completed scanning the 33 issues I was given of "Inside Solaris," a monthly newsletter for admins of the Solaris operating system. This is just a small slice of the total run, which went from 1995 to ??. My scans cover all of 1999 and 2000 as well as parts of 1998 and 2001: https://archive.org/details/insidesolaris Enjoy! - jht

11 years, 9 months

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Reading contents of PALS like the 16L8 or 16R8

by wrm＠dW.co.za

Hi all >http://www.vintage-computer.com/vcforum/entry.php?315-Cloning-a-PAL-HAL-%28… Interesting. I've been doing something similar as an on-and-off project since 2011 (more off than on). Wrote some code to apply vectors on my Expro, read the output, didn't know about Minilog (thanks, Chuck), wrote some really clunky code to do something similar. I'm working on the MAC PALs which is kind of redundant since I have Jecel's work archived. My thinking is that a PAL with 8 registers has at maximum 256 states. Therefore I should be able to apply a vector, clock the PAL 256 times, and that would give me all the states. Repeat for the other 1023 or whatever vectors. But I recently got back into brewing beer so there's not much happening on the PAL reverse engineering front. W

11 years, 9 months

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I wonder how one would use a MSD...

by f.helyanvy＠gmail.com

Hi! I recently acquired a Racal-Milgo MSD III Modem Sharing Device. Although I doesn't own any modem, I'd like to know how to use such a device. Could someone point me to a manual or something? :) I also may possibly acquire another MSD - or whatever it is, i briefly saw it. [Bummer that I have no space, i'd take a cash machine , too!] -- Ola Hughson

11 years, 9 months

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Who is the world's oldest working programmer?

by lproven＠gmail.com

http://www.tnmoc.org/news/notes-museum/who-most-durable-programmer -- Liam Proven ? Profile: http://lproven.livejournal.com/profile Email: lproven at cix.co.uk ? GMail/G+/Twitter/Flickr/Facebook: lproven MSN: lproven at hotmail.com ? Skype/AIM/Yahoo/LinkedIn: liamproven Cell/Mobiles: +44 7939-087884 (UK) ? +420 702 829 053 (?R)

11 years, 9 months

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Reading contents of PALS like the 16L8 or 16R8

by swtpc6800＠comcast.net

The early 20/24 pin PALs had a security fuse to prevent unauthorized duplication. I worked at Data I/O, the device programmer company, in the 1980s and figured out a way to determine the contents. I did a few experiments to prove the concept but never created a complete package. PAL programmers like the Data I/O LogicPak could apply test vectors to a PAL and check the output state of each pin. For a purely combinatorial device like a PAL16H8 you just need to apply all possible inputs and read the outputs. This will create a large truth table in inputs and outputs that can be minimized with PLD software like ABEL. Registered devices like PAL 16R8 require the bank of registers to cycle through all starting points with all inputs. Most of these devices supported pre-load, the programmer could force the internal registers to a known state. You could force a desired register state and inputs then apply the clock. These early registered PALs had a tri-state output buffer controlled by a dedicated pin so you could always read the register output. Later parts had the output buffer controlled by an internal logic function. I am sure that by now someone has developed a high speed tester that applies every combination of inputs then minimized the output to generate a programming file. I have copies of the early DOS based ABEL software; it runs in a DOS box on Windows 98. I believe that Xilinx now owns the copyright. I have donated copies of the software and source code to the Computer History Museum. Michael Holley

11 years, 9 months

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What quad QBUS boards work in a Q/CD backplane?

by jnc＠mercury.lcs.mit.edu

> From: David Riley > Looking at the PMI pins in the KDJ11-B manual, it looks like there are > signal lines on the D2 pins for the memory. That's a +12v pin for Qbus. What I just cannot fathom is why they used D2! PMI is only like 14 signals or so (plus normal QBUS signals like BDALxx), and there are heck of a lot more than 14 available pins on the CD that _do not_ conflict with the normal QBUS power, etc. (You lose xS1 and xB2, but the rest all look OK, although if you want to stay away from +5 you lose a few more.) Someone must have a bad case of brain fade, is all I can think.... But I'm still pretty incredulous that nobody else caught it before it was too late. Maybe it was deliberate - they hoped to increase sales through people burning boards out, plugging them into the wrong backplanes? (Tongue 3/4 in cheek... :-) Noel

11 years, 9 months

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Customs - Was: Re: 9U VME Sun stuff FTGH

by ian.primus.ccmp＠gmail.com

Yeah - I've heard a couple of stories myself, but personally have never had a problem with customs. I've come back from Canada a couple of times with hardware (rescued a Burroughs B80 one time even - now that was a vanload!) and they have never once even opened the side door of the van to get a better look, they just peer in through the driver's window a bit. I have gotten the "What do you want with this junk" bit though. Granted, it's been several years since I have been to Canada, but, I'm not terribly worried. All I can hope is that they do the same, or, when checking, will notice that Sun hardware was made in the US to begin with. -Ian

11 years, 9 months

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What quad QBUS boards work in a Q/CD backplane?

by jnc＠mercury.lcs.mit.edu

> From: David Riley >> But not all quad cards have removable grant jumpers - e.g. the BDV11 >> doesn't. (Not sure why it even _has_ grant jumpers, given that one >> would usually make it the last card, especially since it has pull-ups >> - but I guess it's in case one doesn't.) > You can install it without the terminators ??? You'd have to desolder the terminator resistor packs (or do etch cuts), no? It doesn't have any jumper/switch to disable them. (The Sigma backplane has terminators in plug-in resistor packs, which can be removed.) > From: Mark J. Blair > Well, it turns out that I haven't added the C-D rows to the table > because I don't have any good documentation about them yet. The CD pinout is given in the 1980 Microcomputer Interfaces Handbook under the H9273-A entry (the H9276-A is the same; I forget where I found that one); here it is: +5 CA2, DA2 Gnd CC2, CT1, DC2, DT1 nCx2 - n+1Cx1 for x = B, D-S, U-V (last two high amperage traces) nDx2 - n+1Dx1 for x = B, D-S, U-V nCA1 - n+1CC1 nDA1 - n+1DC1 nCT2 - n+1DT2 Jumper W2 connects 1CK1 - 1CL1 Jumper W3 connects 1DK1 - 1DL1 The jumpers are for when plugging a quad LSI-11 (the original) in; it needs those, apparently. Noel

11 years, 9 months

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Contacting Mr. Mouse

by Arno_1983＠gmx.de

(sorry for abusing the list, but due to the very nature of the problem I currently cannot contact Mr. Mouse directly and his directions for this case explicitly call for me to "contact [him] through some other channel".) Hello Mouse, when trying to contact you about the Sun-3/4 stuff you were offering FTGH, I got back the following: > "mouse at rodents-montreal.org": > SMTP error from remote server in greeting: > host: MX-4.rodents-montreal.org: > This relaying host's domain is blocked for spamming me. See > ftp.rodents-montreal.org:/mouse/misc/one-strike.txt for more. Unless you're keeping some sort of whitelist for addresses on otherwise blacklisted servers (but if you did so, I'd think you'd be mentioning that and a way to get on there in the document you're referring to), your approach strikes me as a bit over the top. After all you're blocking accounts (and the people behind them) that never were responsible for any spam you may have got, without even giving a procedure to get through that ban (like including some keyword or a random one-time key in the Subject line). I will be off the 'net until the beginning of next week, but I hope we can work out a solution to that afterwards. So long, Arno

11 years, 9 months

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cctalk Digest, Vol 133, Issue 43

by seefriek＠gmail.com

From: Al Kossow <aek at bitsavers.org> > >You would obviously only talk to one device at a time. PC would be at 128.0.0.16 on a >private un-routable interface (which is why it's 128.0.0.x). > 128.0.0.0/24 isn't unroutable. It's allocated to a company called "Jump Management SRL" out of Romania (and it's in the BGP tables). Unroutables are 10/8, 172.16/12 & 192.168/16 (per RFC1918). KJ

11 years, 9 months

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KIM Uno Boards available: $10 KIM-1 clone/6502 calculator

by oscar.vermeulen＠hotmail.com

Hi, I just finished my KIM Uno project. It is a handheld KIM-I clone based on a miniature Arduino. Some hard/software extensions make the KIM-1 clone into a pretty effective 6502 programmable calculator, with non-volatile memory to keep code stored. (just to make sure: this is a non-profit hobby project) It costs just $10 in parts. For the next few weeks, I'll send PCBs/kits at cost price to anyone who is interested. The PCB gerbers and firmware will remain on my web site if anyone would like to create the gadget afterwards. The idea was that I like coding in 6502, but I never have much reason to do it. Small calculator-style programs might be the answer... The other idea being I needed a replacement for my real KIM-1, which died sadly. Also, some of the best KIM-1 software I could find is built in to extra KIM-1 ROMs. I had a lot of fun digging them up. So Microchess is there, and some vintage programming tools like Wozniak's 505-byte disassembler, etc. Here is the site: http://obsolescence.wix.com/obsolescence#!kim-uno-summary/c1uuh Regards, Oscar.

11 years, 9 months

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Commodore SX-64 new picture tubes for sale 25$ + shipping

by sbothma＠worldonline.co.za

Hello there, Do you anymore of the Commodore SX-64 new picture tubes available? Regards Johann

11 years, 9 months

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IBM 3340 needs term card

by h.j.stegeman＠hccnet.nl

Hi, I am looking for a terminator card (2-wide) IBM p/n 5863806 used in the IBM 3340 or 3350. It is normally located in the 01A gate (position A2-A3) of the end of string unit. This card is missing in a IBM 3340 which I want to connect to an IBM System/3 model 15D. Remark: this is not the IBM channel bus/tag terminator card. See: http://www.ibmsystem3.nl/downloads/IBM3340.jpg This IBM 3340 is located at the DDHF near Copenhagen, Denmark: http://datamuseum.dk/foreningen/dansk-datamuseum/ Who can help me ? Some detailed pictures of the IBM components used on this card are also very welcome. Regards Henk

11 years, 9 months

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9U VME Sun stuff FTGH

by mouse＠Rodents-Montreal.ORG

Okay, I don't think there's any realistic chance I'm going to want all this old Sun stuff I've been hanging onto; indeed, there's a decent chance I'm never going to want _any_ of it. What chance there is is mostly in case I want to run some VMEbus hardware (for example, I think I have a relatively good VME A->D board somewhere). So I've got a bunch of 9U VME Sun stuff looking for a new home. This is all in Ottawa (Ontario, Canada). I might be convinced to ship, but I would much prefer pickup; I have neither materials to pack this stuff properly nor even the knowledge to tell what materials I would need. I have three 9U VME machines. They worked last time I turned them on, but that was long enough ago that I hesitate to recommend depending on anything being in working condition. (How long? At least a decade, maybe two. They have been stored indoors - in human living quarters, not garages or warehouses or the like - for that time.) I also have some twenty-plus 9U VME boards which are not in cardcages. All part numbers here are ten-finger copies and thus may contain typos. If you suspect I've made a mistake, I can doublecheck. Machine 1: 501-1206 -3/2xx CPU non-Sun RAM (size unknown) empty slot 501-1102 8M RAM with HW patch, component side empty slot 501-1451 32M RAM with HW patch, foil side 501-1045 in 9U-to-6U adapter (internal SCSI) 501-1058 GB graphics buffer [*] 501-1055 GP graphics processor [*] 501-1170 internal SCSI, 501-1236 in 9U-to-6U adapter [*] 501-1116 cg3 framebuffer blank slot cover The three boards marked [*] have the top lever broken off. The two boards marked "HW patch" suffered physical damage to a component; in each case, I soldered in a replacement, which worked as far as I could tell. But they do require that the slot adjacent to them be empty - as configured above, the empty slot between them satisfies this criterion for both boards at once. I haven't inspected those patches to see whether they still look in good shape, but, unless etch runs have torn loose or some such, at worst they should need a little soldering. The "internal SCSI" boards have no connectors on their back panels; they appear to be designed to plug ribbon cables onto for use inside the machine. Machine 2: 501-1206 -3/2xx CPU blank slot cover 501-1102 8M RAM 501-1102 8M RAM blank slot cover 501-1254 32M RAM 501-1217 SCSI, DD-50 back-panel connector blank slot cover empty slot 501-1116 cg3 framebuffer empty slot empty slot Machine 3 is not accessible enough for me to give an inventory of its cardcage; I am convalescing from minor surgery at the moment and am not supposed to do significant physical exertion yet, so inventorying that one will have to wait a week or two, unless I can find help moving the things on top of it. Fuzzy memory says it's a Sun-4/470, but I'm also not sure I didn't empty it out of boards before my last move, so the boards from it could be in the list below. The boards not currently in any cardcages: 501-1164 -3/xxx CPU 501-1217 SCSI, DD-50 back-panel connector 501-1153 AUI Ethernet 501-1134 -3/110 CPU non-Sun RAM, size unknown 501-1153 AUI Ethernet 501-1153 AUI Ethernet non-Sun RAM, size unknown 501-1132 4M RAM 501-1333 32M RAM 501-1333 32M RAM 501-1217 SCSI, DD-50 back-panel connector 501-1217 SCSI, DD-50 back-panel connector 501-1203 16-channel ALM 501-1539 IPI disk interface 501-1381 -4/470 CPU There are also a handful more which need special remark. There are two 501-1584s. This board looks like an AUI Ethernet, but when I look up the 501-1584 number, it is apparently combination SCSI and Ethernet; I don't know whether the SCSI functionality is accessible. There is a board whose tag says it's a 501-1165, but that number appears to be a VME/Multibus adapter; the markings and connectors on the back panel make this out to be an ALM board. There is a non-Sun board from ILLIMITE INC, of Rochester NY; I don't know what it's for, except that its back panel doesn't give any hints, reducing the list of plausible candidates. There are two boards which have lost their plastic tags. I also have two torn-off plastic tags, which likely but not certainly are from those boards; they say 501-1381 and 501-1217. One of the boards is SCSI, a 501-1236 in an adapter to 3U; that is probably the 501-1217. The other is a CPU board. The ROMs are marked 525-1103 through 525-1106; combined with the other plastic tag (501-1381) and a brief look over the board, I think this is probably another -4/470 CPU board. I will be watching both my mailbox and the list for replies, but, given email's unreliability these days, I recommend not counting on it. If you have trouble getting through by email and you care to bother, I should be reachable at +1 613 482 0910. (That number goes through a VoI system I'm the primary geek behind, which puts me in enough control of its behaviour that I don't mind posting it here - it's temporary anyway; I'll take it down in at most a few months.) I also have enough of the small Allen-wrench screws Sun used to hold these boards into their cardcages that I can supply them for any boards that don't have them. /~\ The ASCII Mouse \ / Ribbon Campaign X Against HTML mouse at rodents-montreal.org / \ Email! 7D C8 61 52 5D E7 2D 39 4E F1 31 3E E8 B3 27 4B

11 years, 9 months

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Semi-OT: xylogics annex terminal server

by simski＠dds.nl

On 01-10-14 01:21, Bill Sudbrink wrote: > Dennis Boone wrote: > At that point, I'll probably just switch to a linux box, a couple of USB > hubs and a bunch of USB<>serial dongles. Somebody has probably already > written a generic POSIX terminal server program... if not, I can hack one > up myself. > Then do yourself a favour and stay away from the el cheapo pl2303 clones. they *seem* to just work fine, but they tend to have all kind of fuzzy defects, not apparent but after a longer period of time. ft232 cost more, but are very reliable -- Met vriendelijke Groet, Simon Claessen drukknop.nl

11 years, 9 months

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FS: HP T5735 Thin Clients, 1GB RAM- $50 each shipped

by slandon110＠gmail.com

Just clearing out some more stuff, Ive got 5 HP t5735 Thin Clients They are Sempron 2100mhz with 1GB RAM, 1GB ATA Flash The best part with these is you can replace the 1GB DOM with a hard drive and have yourself a really quiet low power linux box. Or just put a 16GB USB stick in the internal USB port and install linux. I run a system to provide PPP access to my Commodore Amiga, and run my VT420 off of the same system. They have a real serial port. So the possibilities are endless with these. Faster then an RPI It has 8 USB Ports 6 on the outside 2 on the inside Im asking $50 each shipped for them. They come with AC Adapter. The Debian image and XPe image for these is on HP's website if you so choose to download it.

11 years, 9 months

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AS400 SOURCE media

by shumaker＠att.net

Just back from a visit to RE-PC in Tukwila.... Tucked back in a corner is a large box of original IBM floppy disks (both 8 and 5.25) for AS-400 with some docs in 3ring binders. Looks to be apps although there are some sealed pkgs as well.... they want $40 for the box but occasionally dicker. Is this stuff potentially significant? Steve

11 years, 9 months

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What quad QBUS boards work in a Q/CD backplane?

by jnc＠mercury.lcs.mit.edu

> From: Antonio Carlini >> Does anyone know of a list of quad QBUS cards that work (or do not >> work) in Q/CD backplanes > There are lots and lots of Q-bus cards so it would be quite a long list. Indeed; hence the "or do not work" in my original message - I realized that that list was likely more manageable. (Although one possible bug with the 'does not work' list is that one could get a false positive failure...) > From: David Riley > Conversely, cards designed for the CD interconnect (RLV11 board sets, > PMI memory, PMI CPUs) should NEVER, EVER be plugged into a Q/Q > backplane. Off-topic somewhat, but I wonder why DEC put PMI signals, etc on power pins (I assume that's what zaps a PMI/etc card plugged into a Q/Q slot). Surely there are enough pins which are bus lines, etc, which one could use? Yes, the machine probably wouldn't work if one plugged such a card into a Q/Q slot, but you wouldn't zap boards... >> CB2 is tied to DB2, and the two feed (through a jumper which is >> normally removed) special power (-5V) for a particular kind of EPROM > -5v is an optional rail on Qbus, anyway. Actually, I think AB2/BB2 are 'normally' -12V - although not all power supplies provide the -12 - e.g. the BA11-N only does +5V and +12V. > In general, as long as there are removable grant jumpers for the CD > lanes But not all quad cards have removable grant jumpers - e.g. the BDV11 doesn't. (Not sure why it even _has_ grant jumpers, given that one would usually make it the last card, especially since it has pull-ups - but I guess it's in case one doesn't.) Noel

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What quad QBUS boards work in a Q/CD backplane?

by jhfinedp3k＠compsys.to

>Noel Chiappa wrote: >Does anyone know of a list of quad QBUS cards that work (or do not work) in >Q/CD backplanes (other than the board pairs specifically designed to go in a >Q/CD backplane, of course)? I tried Google, but either there is no such list, >or my Google-fu is pretty weak. > >For instance, I'm looking at a BDV11, and it has the usual grant jumpers on >CM2-CN2 and CR2-CS2, but I don't think those will be a problem (provided there >is no quad board immediately next to it). Similarly, CB2 is tied to DB2, and >the two feed (through a jumper which is normally removed) special power (-5V) >for a particular kind of EPROM; but again, I don't think this will be a >problem (again, if blank neighbour slot). > >But I'd rather not have to go through that exercise for every quad card; it >would be nice if there's a table which just says which ones are OK. (I did >find mention, in the 1980 Interfaces Handbook, in the BA11-N entry, that >MMV11-A modules will _not_ work in a Q/CD backplane, which _implies_ that >all the rest are OK, but...) > I don't have a list, but there is at least one example of "do not work" for the RL01 / RL02 Qbus controller which uses a 2 board set and supports ONLY 18-bit. The M8013 / M8014 requires that BOTH boards be (probably adjacent) in two quad Q / CD slots. Placing the boards into a Q / Q backplane will release the magic smoke. While not a good example, in a BA23 box, place the CPU board in the first slot with the M8013 / M8014 in the second and third slots. The non-PMI memory and the other boards will then occupy the other 5 slots. PROBABLY (as mentioned in other posts), the Qbus PMI memory must also be used in a Q / CD backplane AND in this case placed above the CPU board, in this case an M8190. On the other hand, if the PMI memory is placed below the CPU board (but still in a Q / CD slot), then the memory will still function correctly, but NOT as PMI memory. Contrary to what is stated elsewhere, the M8190 boards which support the use of PMI memory work (as far as I understand - I have done so on a VT103 which uses a Q / Q backplane) with either type of backplane, although obviously with the Q / Q backplane, NEVER use PMI memory in the first place. Jerome Fine

11 years, 9 months

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History of ABEL and early PLD software

by swtpc6800＠comcast.net

When I was gathering up stuff to send to the Computer History Museum I wrote a history of the ABEL project with lots of reference documents. http://www.swtpc.com/mholley/PLD_History/History.html Michael Holley

11 years, 9 months

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Semi-OT: xylogics annex terminal server

by scaron＠umich.edu

Cisco 2600 with an 8-port sync/async serial card would make a nice replacement and they're pretty easy on the wallet these days. You might spend as much cabling it as you did for the unit when it's all said and done? C2500s lingered on in this role for some time as well, though they're quite a bit slower than the 2600. Or an old Portmaster, those things are dirt cheap now. It's always annoying when you get in a situation like this; I had a very contemporary ATEN IPKVM at work that would get stuck in a reboot loop the minute I plugged it into a specific VLAN full of traffic. Never could get them to fix it... Best, Sean On Tue, Sep 30, 2014 at 7:24 PM, Bill Sudbrink <wh.sudbrink at verizon.net> wrote: > Richard wrote: > > Or maybe customize the WRT software installed on the router? > > Yes, I was thinking about that too. There's a guy called "Merlin" > who customizes it. I have not exactly identified the offending > traffic. I'm not sure what I would lose if various "subsystems" > in the router were disabled. > > > Isn't WRT open source? > > Yes. > > Bill S. > >

11 years, 9 months

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Semi-OT: xylogics annex terminal server

by drb＠msu.edu

> This new router seems to broadcast a number of packet types that the > IP stack on the Annex was not designed to handle. The buffers > containing these packets appear to be leaked and the memory loss > eventually causes the Annex to hang hard. This happens about every > 40 hours. A power cycle will bring it back. A bit of googling seems > to indicate that I am running the latest official firmware (from > 1995?). I can't seem to find any web discussion of the Annex more > recent than 2004. I wondered whether anyone here might know of some > trick or some small remaining community of users of the Annex. I > know that it has something to do with traffic from the new router > because if I isolate it on a subnet by itself it still runs fine with > no memory loss. Nortel discontinued the line about then, if memory serves. You might try asking Doug Jones <dcjones at netdesc.com>. He was providing some support for Annexen after Nortel quit. Honestly, the easiest thing to do is probably to throw one of the small board computers at being a packet filter, though. What model do you have? De

11 years, 9 months

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Semi-OT: xylogics annex terminal server

by jacob.ritorto＠gmail.com

I still use annex terminal servers too, but haven't seen your problem, nor do I know of solutions. Was buying them well into 2001. I think bay networks bought out xylogics. maybe they have a newer firmware? On Tue, Sep 30, 2014 at 4:53 PM, Bill Sudbrink <wh.sudbrink at verizon.net> wrote: > Hi all, > > I have the above mentioned device and have been using it > for a number of years to access the console ports on several > of my vintage computers. It also communicates with the > serial ports on a couple of older UPSs that I still have in > service. It has worked flawlessly up until a couple of > months ago. At that time, I replaced my old primary router > with a new one. This new router is an ASUS and runs an ASUS > specific version of WRT. This new router seems to broadcast > a number of packet types that the IP stack on the Annex was > not designed to handle. The buffers containing these packets > appear to be leaked and the memory loss eventually causes the > Annex to hang hard. This happens about every 40 hours. A > power cycle will bring it back. A bit of googling seems to > indicate that I am running the latest official firmware (from > 1995?). I can't seem to find any web discussion of the Annex > more recent than 2004. I wondered whether anyone here might > know of some trick or some small remaining community of users > of the Annex. I know that it has something to do with traffic > from the new router because if I isolate it on a subnet by > itself it still runs fine with no memory loss. > > Thanks, > Bill S. > >

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Semi-OT: xylogics annex terminal server

by b4＠gewt.net

On Tue, 30 Sep 2014, Bill Sudbrink wrote: > Hi all, > > I have the above mentioned device and have been using it > for a number of years to access the console ports on several > of my vintage computers. It also communicates with the > serial ports on a couple of older UPSs that I still have in > service. It has worked flawlessly up until a couple of > months ago. At that time, I replaced my old primary router > with a new one. This new router is an ASUS and runs an ASUS > specific version of WRT. This new router seems to broadcast > a number of packet types that the IP stack on the Annex was > not designed to handle. The buffers containing these packets > appear to be leaked and the memory loss eventually causes the > Annex to hang hard. This happens about every 40 hours. A > power cycle will bring it back. A bit of googling seems to > indicate that I am running the latest official firmware (from > 1995?). I can't seem to find any web discussion of the Annex > more recent than 2004. I wondered whether anyone here might > know of some trick or some small remaining community of users > of the Annex. I know that it has something to do with traffic > from the new router because if I isolate it on a subnet by > itself it still runs fine with no memory loss. > Oooooh. Annex! I have no familiarity with those, need to learn 'em for my pet project. > Thanks, > Bill S. > > -- Cory Smelosky http://gewt.net Personal stuff http://gimme-sympathy.org Projects

11 years, 9 months

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Semi-OT: xylogics annex terminal server

by wh.sudbrink＠verizon.net

Hi all, I have the above mentioned device and have been using it for a number of years to access the console ports on several of my vintage computers. It also communicates with the serial ports on a couple of older UPSs that I still have in service. It has worked flawlessly up until a couple of months ago. At that time, I replaced my old primary router with a new one. This new router is an ASUS and runs an ASUS specific version of WRT. This new router seems to broadcast a number of packet types that the IP stack on the Annex was not designed to handle. The buffers containing these packets appear to be leaked and the memory loss eventually causes the Annex to hang hard. This happens about every 40 hours. A power cycle will bring it back. A bit of googling seems to indicate that I am running the latest official firmware (from 1995?). I can't seem to find any web discussion of the Annex more recent than 2004. I wondered whether anyone here might know of some trick or some small remaining community of users of the Annex. I know that it has something to do with traffic >from the new router because if I isolate it on a subnet by itself it still runs fine with no memory loss. Thanks, Bill S.

11 years, 9 months

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Vancouver: HP3000 on Craigs

by silent700＠gmail.com

Old ad now but it may still be available. Looks like it's FtaGH: http://vancouver.en.craigslist.ca/rds/sys/4656087606.html Hope someone can rescue it. -j

11 years, 9 months

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What quad QBUS boards work in a Q/CD backplane?

by jnc＠mercury.lcs.mit.edu

Does anyone know of a list of quad QBUS cards that work (or do not work) in Q/CD backplanes (other than the board pairs specifically designed to go in a Q/CD backplane, of course)? I tried Google, but either there is no such list, or my Google-fu is pretty weak. For instance, I'm looking at a BDV11, and it has the usual grant jumpers on CM2-CN2 and CR2-CS2, but I don't think those will be a problem (provided there is no quad board immediately next to it). Similarly, CB2 is tied to DB2, and the two feed (through a jumper which is normally removed) special power (-5V) for a particular kind of EPROM; but again, I don't think this will be a problem (again, if blank neighbour slot). But I'd rather not have to go through that exercise for every quad card; it would be nice if there's a table which just says which ones are OK. (I did find mention, in the 1980 Interfaces Handbook, in the BA11-N entry, that MMV11-A modules will _not_ work in a Q/CD backplane, which _implies_ that all the rest are OK, but...) Noel

11 years, 9 months

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Who is the world's oldest working programmer?

by les＠hildenbrandt.com

I think I heard that Eve had an Apple and Adam had a Wang. :)

11 years, 9 months

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IBM1629 & "C" was RE: Who is the world's oldest working programmer?

by dave.g4ugm＠gmail.com

The problem with the IBM1620 is that it has extra bits in the characters that can't be used to store data. This mean that implementing the "C" language in way which allows it to perform meaningful work possibly on existing data would be challenging. I can't see any point in implementing any language just to show it can be done... Dave G4UGM -----Original Message----- From: cctalk-bounces at classiccmp.org [mailto:cctalk-bounces at classiccmp.org] On Behalf Of Eric Smith Sent: 30 September 2014 08:51 To: General Discussion: On-Topic and Off-Topic Posts Subject: Re: Who is the world's oldest working programmer? On Mon, Sep 29, 2014 at 7:06 PM, Sean Conner <spc at conman.org> wrote: > Going back to K&R ... um ... maybe? Perhaps? Can you address a > single BCD digit? If not, it may make char * a bit hard to support ... Actually, if you *can* address a single BCD digit, that will make C hard to support, because C requires that all data types have sizes of a multiple of the size of the character type, and the character type is required to have a range of at least -127 to +127 (for signed char) or 0 to 255 for unsigned char. It would seem that the easiest way to do that on a BCD machine would be to use groups of three digits (or more) as a char, and have a lot of the possible machine values of those groups be illegal. This is essentially the same reason that a compliant C on a PDP-10 would have to use 9, 12, 18, or 36 bit characters, and not directly support the normal PDP-10 native 6-bit and 7-bit characters.

11 years, 9 months

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Any info / software available for a Ridge 32/330?

by jnc＠mercury.lcs.mit.edu

> From: Sean Caron > I'd at least grab the boards out of it, if you could. I cringed when I read this! I find so many boards available for old PDP11's - but without the cables, cabinet plates, etc which make them usable. E.g. there's currently a seller on eBay who has an RK11 board set - but without the custom backplane, they are useful only as spares for an existing RK11. Grabbing the boards is better than recycling the whole works, I concede; but such boards are effectively sentenced to being spares for an existing unit: they will almost certainly never again function as a working unit. So I think it is a desperate move to save only boards - one really ought to try and save the rest if one possibly can. (I know, in this case that happened; I was just commenting on the general concept.) Noel

11 years, 9 months

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Upgrading BA11-N to BA11-S (was: Unibus/qbus wire wrap tool)

by jnc＠mercury.lcs.mit.edu

Thanks to everyone who responded. (And for the pointer to the BA11-N prints; I had that print set, just hadn't look all the way through it! Although I still hope a copy of the Tech Manual shows up some day.) > From: Pete Turnbull > For each BDAL line I used a suitable length of wire-wrap wire to run > the length of the bus plus an allowance to wind once round each pin. I > stripped somewhat over an inch of of insulation from the end, then used > the stripper to separate the remaining insulation everywhere it would > solder to a pin. Soldered one end, wind once round every succeeding > pin, and soldered each. Thanks for that tip - I had been planning on using separate lengths, but one piece made a lot more sense. (Although I used wire from a 25-pair telephone cable - I like working with that, it takes solder very easily, which not all wire wrap wire will.) Noel

11 years, 9 months

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Mayflower MFE 750/751 8 inch floppy drives

by malcolm＠avitech.com.au

Just wondering if anyone has (or can point me to) any technical information about Mayflower's MFE 750 and MFE 751 8 inch floppy drives. I have one of each of these drives, and am looking for information about the configurations settings etc. Regards, Malcolm.

11 years, 9 months

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Upgrading BA11-N to BA11-S (was: Unibus/qbus wire wrap tool)

by malcolm＠avitech.com.au

> I have verified that the CD part of the backplane is identical in both (the > 1983-84 Microcomputer Interfaces Handbook, EB-23144-18, has pinouts for > the CD > part for both, and they are indeed identical). Alas, I cannot find detailed > data on the rest of the H9273-A: neither the BA11-N Technical Manual, nor > the > Print Set, is available online. (I found some old list email which > indicates > that someone named David Powell had a copy of the TM - does anyone know > him?) > > Noel > Hi Noel, there are H9273/H9273A PCB layouts and wiring diagrams at pages 41-51 of the "PDP11/23 Field Maintenance Print Set". A Google search for "MP00740_1123_schem_Oct81" will bring it up on Bitsavers. Malcolm

11 years, 9 months

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Wanted: Vintage Texas Instruments Guru

by charles7＠slingshot.co.nz

Hi I am a model railroader (in HO scale) and use a digital controller from the 1980s. The controller is a Hornby UK, Zero 1. This device is based around the TMS1000NLP and has been excellent value over 30 years. The only small improvement I would like to make is to increase the number of locomotive addresses to above the current limit of 16. (because of4-bit chip). The TMS1000 has a masked program (MP0186) and the ram can be dumped in 2 ways, by removing physically the top of the chip and photographing etc. The second option is dumping code via the test mode, as mentioned in TI literature. I would like to be able to discuss with someone about instructions to use the Test Mode etc. Also I would like to locate a list of the TI TMS1000 programs MP**** (incl the MP0186 above) Dave Caroline was good enough to direct me to this mailing list. Thankyou Charles Harris NZ

11 years, 9 months

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Further PDP-11/05 debugging -- core memory faults

by derschjo＠gmail.com

Hi all -- The CPU in the 11/05 seems to be behaving nicely as far as I can tell, now that the Microcode ROMs are no longer filled with bogus data. It will run small programs I've toggled in without issue, and so I've moved on to testing the memory. Basic testing (via the simple address test listed here: http://www.psych.usyd.edu.au/pdp-11/hints.html) reveals that most of the 8KW of core (H215) and controller is working pretty well, except for a 128 byte range between 012000(8) and 012200(8). Within this range, all words read back as all zeros regardless of what is written. Given the nature of the fault, I tend to think that this is not an addressing problem or an issue with the core drivers -- if it was any of these I'd expect the fault to repeat across the memory space in a pattern, rather than being isolated to a single contiguous block of memory. If that's true, then it seems that the core plane itself might be at fault. Which doesn't surprise me, I'm actually surprised it works at all -- when the /05 arrived the H215 core memory board was loose, banging around inside the chassis. Does my initial analysis seem reasonable? Anyone have any experience debugging one of these and have any tips to share? Thanks, Josh

11 years, 9 months

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TD Systems Inc Viking QTO / QDO conversion. QBUS.

by mattislind＠gmail.com

On Thu Jun 19 10:28:44 CDT 2014, Zane Healy <healyzh at aracnet.com> wrote: >On Jun 19, 2014, at 8:14 AM, Glen Slick <glen.slick at gmail.com> wrote: > >> On Thu, Jun 19, 2014 at 7:53 AM, Zane Healy <healyzh at aracnet.com> wrote: >>> >>> Yes, yes, and yes. I did this 15+ years ago, you're making me feel old. :-( >>> >>> You need the following: >>> 1. A high enough version of the EPROM >>> 2. A PAL Fuse Map for burning a PAL that will allow the board to act as a QDT controller (Disk and Tape) >>> 3. A special cable that allows you to connect a Serial Terminal >>> 4. Instructions on how to get into the hidden menu to configure the board >>> >>> I should have #4, but I have no clue as to where it is. The person I knew that had #2 lost that data in a fire years ago. I seem to recall hearing about someone jury-rigging #3, I used the pr\ oper cable and bulkhead plate. >>> >> >> If you burned your own PAL yourself and you didn't secure the PAL (or >> does a PAL16L8 even have a security fuse?) then even if the known PAL >> Fuse Map was lost I would assume that it could just be read back from >> the PALs on the boards you have, along with dumping the firmware >> EPROMs as well. >> >> -Glen > >The person that burned the PAL's is the person that had the fire. > >Zane I have had some progress in this matter: I got a reply to the letter I sent to folks at tdsys.com. The gentleman had forwarded to the designer of the Viking series of adapter boards and to the lady that was working with configuration of products. He had not yet go a reply from them. I also checked how the address decoding PAL is connected and I now understand that it has two outputs, connected to another PAL chip and then 16 inputs. These 16 inputs are the 4 jumpers and also BDAL02-BDAL12 and also the BBS7 signal. Looks quite reasonable being an address decoding chip. I more or less presume that the reason for two outputs is that one is for disk and one is for tape. I have to verify that by reverse engineer the actual content of the PAL using a small arduino board. You mention that there is a special way of accessing the configuration menu. It make sense since when I examine the board more carefully I discover a small serial EEPROM that might be used for storing the configuration. It would be really interesting to get more info about how to access this secret menu! Anyone else out there that knows about this? I have the cab kit for it. It has a DB25 connector as well as a 50 pin male IDC connector. But there is also pads for a 10 pin connector that seems to be for the second serial port. What is the use for this second serial port? The board has a Signetics SCN2681 DUART chip so it definitely has two serial ports. Regarding versions of the firmware. My firmware is 4.0 : https://dl.dropboxusercontent.com/u/96935524/Datormusuem/Viking_Q_B_A4.0.bin Zane, Pontus: What is your version? Mattis Lind

11 years, 9 months

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FYI - terms of "equipment available" emails

by jnc＠mercury.lcs.mit.edu

> From: Jay West > Ensure that if you ever no longer wish to keep the machine that it > winds up in the hands of another collector This all seems eminently reasonable, but I had one question/clarification, about the above: what about museums? In other collecting fields I am aware of (Asian art, old racing cars, steam locomotives) there are a range of opinions about giving things to museums. (I personally don't have any strong feelings / axes to grind either way on these issues, merely raise them as I know there is debate on them in other field.) One issue with museums is that a lot of their holdings are stored out of sight, never to be seen by the ordinary public, and in that case, they might as well be with a collector who can enjoy them, and show them. The other issue (only with the cars and locos) is that some museums have a strict 'conserve it exactly as it was' policy, and since these things were intended to be _used_, an old race car/loco that's been 'stuffed and mounted on a plinth' (as the phrase goes in loco preservation) is akin to a zoo full of stuffed and mounted animals. Yes, using them can cause them to wear out (although there are rare counter- examples - John Harrison's sea-going clocks H1 through H3 are allowed to run, as their bearings, etc are thought to have indefinite life-times - which is not the case with H4, his first chronometer, which is displayed stopped), and also, to get one running may require replacement of some parts (although one can always save the old parts, for historical purposes). Like I said, I can see both sides - just wondered what the feeling was about this. Noel

11 years, 9 months

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Any info / software available for a Ridge 32/330?

by derschjo＠gmail.com

Hi all -- I have the opportunity to pick up a Ridge 32/330, which looks like a pretty interesting 32-bit server/workstation from the mid-80s. It looks seriously cool, but I'm a bit hesitant to jump on it since it's a pretty large machine (well, relatively speaking...) that I haven't been able to find much information about. I have a few *other* interesting machines that are basically doorstops due to lack of media and documentation, I'm not sure I need another to add to that category :). What say you, O Internet Collective? Thanks, Josh

11 years, 9 months

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Upgrading BA11-N to BA11-S (was: Unibus/qbus wire wrap tool)

by jnc＠mercury.lcs.mit.edu

> From: David Riley > I think most if not all Qbus backplanes were PCBs. But some of them > (notably the H9270) are PCBs with wire-wrap posts for the connector > terminals. Makes it very handy to, say, modify the H9270 for 22-bit, > which I did .. with no problem. This reminds me of something I'm looking into. I have a BA11-N (Q18/CD) which I'd like to upgrade to BA11-S (Q22/CD). (Yes, yes, I know, the -S has a oomphier power supply, which I won't have, but I'm not trying to run a lot of power-hungry cards.) I've tried finding an H9276-A backplane (Q22/CD) to go in it, to replace its existing H9273-A (Q18/CD), but _every_ place I called which had one listed reasonably cheap (<$100), and which claimed their internal stock database (i.e. not just their lame, useless, Web-site) showed they had one... when they checked the actual shelf, they did not in fact have any. So now I'm thinking, maybe I'll just add the BDAL19-22 lines to the existing H9273-A. It doesn't have wirewrap pins, but there's enough pin showing that I can get two wires onto each pin, and solder them; does not look to be difficult at all. I have verified that the CD part of the backplane is identical in both (the 1983-84 Microcomputer Interfaces Handbook, EB-23144-18, has pinouts for the CD part for both, and they are indeed identical). Alas, I cannot find detailed data on the rest of the H9273-A: neither the BA11-N Technical Manual, nor the Print Set, is available online. (I found some old list email which indicates that someone named David Powell had a copy of the TM - does anyone know him?) So, has anyone tried to upgrade an H9273-A to H9276-A, and are there any pitfalls? From what I can see, there shouldn't be a problem, but I'd like to be 100% sure before I start plugging cards into it... Noel

11 years, 9 months

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DECwriter Casters/Wheels

by silent700＠gmail.com

It was recently pointed out to me that my DECwriter II (LA36) has holes drilled on the bottom of the stand to accept pads or casters. Does anyone know the measurement and thread size of those holes? I'm willing to use DIY-store parts to make these beasts mobile. No DEC-original parts needed. The DECwriter III (LA120) also appears to have the same holes. Are they the same size as the LA36's? Worst case, they can go on furniture dollies, but I'd like to try doing it "right" first. TIA - jht

11 years, 9 months

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