- 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, 9 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, 9 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, 9 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, 9 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, 9 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, 9 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, 9 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, 9 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, 9 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, 10 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, 10 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, 10 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, 10 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, 10 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, 10 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, 10 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, 10 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, 10 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, 10 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, 10 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, 10 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, 10 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, 10 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, 10 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, 10 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, 10 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, 10 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

11 years, 10 months

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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, 10 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, 10 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, 10 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, 10 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. > >

11 years, 10 months

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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, 10 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, 10 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, 10 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, 10 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, 10 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, 10 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, 10 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, 10 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, 10 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, 10 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, 10 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, 10 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, 10 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, 10 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, 10 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, 10 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, 10 months

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More H7842 (Rainbow) PSU Questions

by bobvines00＠gmail.com

Tony, et al., On your Rainbow H7842 PSU pinout you list pin #1 as ACOK H. Do you know what monitors that signal? Is it the AC side OK or the DC output OK? I'm guessing that it monitors the AC side to ensure that the incoming "mains" voltage is high enough to not damage the PSU. Is that correct? And nothing monitors the DC output(s) for correctness? ===== For pin #2 you give "IOWR4 L (connected via a jumper)." Does this mean that it is pulled down as "true," and if so, by what? Do you have any idea about whether it can be ignored for use in a DECmate II or if there is a jumper for DECmate use or is it always jumpered? Can you tell me what "IOWR4" means or stands for? ===== I have a question about using an automobile's headlamp for load testing this PSU. Do I need to use an increasingly rare 6V headlamp or can I safely use a "relatively modern" 12V incandescent headlamp? Will the 12V headlamp draw enough to safely load the 5V portion of the PSU? ===== There is another connector coming out of the PSU that just hangs on a plastic clip on the superstructure, presumably for another application that the DECmate II. Since it's probably only one wire, I figured it's some PC-imitation Rainbow-ism [or the Pro 325?] which is never used in the DECmate II, etc. Do you know what this "extra" connector might be for? ===== My next (dumb) question is: "Is the Rainbow PSU a switching PSU?" I assume that it is based on its size & weight, but would like expert opinions to verify this. Thanks, Bob

11 years, 10 months

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FS: Macintosh SE/30- Needs replacement analog board- Comes with one

by slandon110＠gmail.com

Just clearing out more of the collection. A mint Mac SE/30 with 5MB RAM 80MB Hard Drive No yellowing on the system at all, comes with keyboard and mouse which is also mint, along with the original owners manual and carrying case. Needs an analog board installed and new one comes with it. $100 plus shipping for it.

11 years, 10 months

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

by anders＠abc80.net

> Date: Sat, 27 Sep 2014 22:11:52 +0100 (BST) > From: ard at p850ug1.demon.co.uk (Tony Duell) > To: cctalk at classiccmp.org > Subject: Re: Further PDP-11/05 debugging -- core memory faults > Message-ID: <m1XXzHa-000J4dC at p850ug1> > Content-Type: text/plain > >> >> Further investigation reveals that the connection between FD1 on the >> card edge connector (the XS05 signal) and pin 7 of the 2501 at E22 is >> broken. This, I believe, is a matrix wire (or "magnet wire" from the >> engineering drawings) meaning that I've got a broken wire somewhere in >> the core mat. > > I would just trace the tracks, both visually an with an ohmmeter, from > the edge conector pin to the core mat and from the core mat to the diode > array. Just in case. > > Incidneatlly, no matter what it says on the cover over the core mat, you > can take it off quite easily without damage. Just don't drop it on the > corse. > > If it is the core address wire in the mat, you may have big problems. > Some of these mats had the cores cast onto the array of wires, no > pre-made cores that were threaded with the wires. In which case, > replacing the wire might be impossible. It's possible to replace a wire in a core mat, I have made it myself in a core pack that belongs to a PDP-8/L. Depending on the sizes of the cores it migth be more (or even much more) difficult. If the wire is broken outside the mat, it?s possible to extend the broken wire a bit and put in a new piece of "fresh" thread. I used a good stereoscopic microscope which essentially made it possible. You also need some time and a steady hand. > > My first throught was 'have a go anyway. If you wreck the board, well, it > doesn't work now'. And then I thoguth that no, you should treat it with > care. Even if you don't have the skill to fix it now, you might do so i > nthe future. Or somebody else might have a go. In any case, you don't > want ot make thigns worse. > > -tony I do agree upon that. The worst thing that could happen is if you crush a core... /Anders

11 years, 10 months

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Exec-PC BBS

by cctalk＠fahimi.net

Anyone know the status of this BBS? I.E. is it fully operational through the Telnet node or is it just a shell of its former self? I signed on a few months ago and tried "subscribing" but I am still in demo mode (oh that brings back memories!). It would be very cool if it is "fully" up and you can dl old files/utils/apps etc. Thanks. -Ali

11 years, 10 months

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Value of a Tantalum Capacitor

by robert.jarratt＠ntlworld.com

In investigating the fault on my H7874 PSU I desoldered a tantalum capacitor which I have broken in the desoldering process. I can't tell its value, the markings are 224 E5Z on one side and 038 ASF on the other side. >From these markings, can anyone tell me what value/spec the capacitor has? Thanks Rob

11 years, 10 months

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P112 parts on their way

by dgriffi＠cs.csubak.edu

On a homebrew synthesizer list I presented my frustrations on dealing with Mouser and filling kits. Everyone there who sold kits did a marathon at the kitchen table rather than having the part supplier do the kits. I feel that I've been making a big production out of a small one. I should have the box of parts by Tuesday, I think. -- David Griffith dgriffi at cs.csubak.edu

11 years, 10 months

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Computer Conservation Society visit to Bletchly Park

by dave.g4ugm＠gmail.com

Folks, Well I started my retirement the way I intend to continue with a trip to IBM Hursley's museum. I posted a few pictures on Facebook but any one should be able to view them without logging in. https://www.facebook.com/media/set/?set=a.10205102010936371.1073741828.14268 00809 <https://www.facebook.com/media/set/?set=a.10205102010936371.1073741828.1426 800809&type=1&l=ff0e40da08> &type=1&l=ff0e40da08 Dave G4UGM

11 years, 10 months

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dumping core from pdp8 to serial.

by simski＠dds.nl

Hello all, The pdp8/f we got last week is working now, after forming the capacitors on the lineair powersupply and testing it with dummyloads. there is a 8kword and a 16kword corepack in the machine. we would like to dump the contents of the core to serial to preserve the original contents for later examination while we can to tests with the machine. is there a way to do this, using a empty part of memory and a M8650 uart? -- Met vriendelijke Groet, Simon Claessen drukknop.nl

11 years, 10 months

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Unibus/qbus wire wrap tool

by roeapeterson＠gmail.com

I know I've seen this before, but I can't find it just now. I need a wire wrap tool for qbus/unibus. What size for those pins? Thanks.

11 years, 10 months

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FS: Amiga 3000 With 16MB ZIP RAM 2MB CHIP 1GB Hard Drive & Extras

by slandon110＠gmail.com

Ive had this Amiga 3000 for a couple weeks now, and upgrading it is just out of my price range, It needs to go into the hands of someone who will appreciate it Its in unmolested condition with 16MB hard to find ZIP RAM installed 2MB Chip RAM Has the Original Kickstart 1.4 ROMs installed. 1GB Hard Drive with Workbench 2.03 installed. A set of 3.1 ROMs will come with it It will also come with the following items not installed 36GB SCA Hard Drive with 50pin Adapter- Prepared for the Amiga, Just plug and play Internal 50pin 4x36GB External SCSI array that works with AmigaOS Keyboard & Mouse This thing is mint Pics are here https://flic.kr/p/pjqeWU No monitor included. It takes a standard VGA CRT $800 shipped for the system. Or I will gladly trade for a nicely expanded Amiga 1200 system

11 years, 10 months

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TRS-80 or System-80 clock crystals in Australia?

by thrashbarg＠kaput.homeunix.org

Hi list, Would anyone know if I could get a 10.6445MHz crystal for a Dick Smith System-80 in Australia? This evening I decided to power up mine for the first time in ages, but the crystal pins were corroded through and it fell off. Cheers, Alexis K.

11 years, 10 months

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Unibus/qbus wire wrap tool

by jnc＠mercury.lcs.mit.edu

> From: Roe Peterson > I need a wire wrap tool for qbus/unibus. What size for those pins? None of my current DEC backplanes have wire-wrap pins (these are all PCBs), _but_ I just measured some wire-wrap configuration pins on QBUS boards, which look to be about the same size as I recall UNIBUS backplane pins being, and those are .7mm / .025". Doesn't the tool also depend on the wire gauge? > From: Jay West > I just assumed there was only was size..... Some of the older machines (I specifically remember it being either the PDP-6 or KA-10, but I forget which) used pins (and wire) which was significantly larger than those in the PDP-11. But I think all the -11's (both busses) used pins of the same size. (I don't recall ever seeing one different, I'm pretty sure.) Noel

11 years, 10 months

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Value of a Tantalum Capacitor

by jnc＠mercury.lcs.mit.edu

> From: Paul Koning > On Sep 21, 2014, at 6:31 PM, Noel Chiappa wrote: >> I have found this page: >> >> http://wiki.xtronics.com/index.php/Capacitor_Codes >> >> very helpful in deciphering capacitor markings. > That address doesn't work for me. I did notice that at one point, it only worked for me with some browsers (e.g. Firefox, IIRC), but not others (e.g IE, IIRC), for reasons I didn't fully understand. (As in, it's not that it came up but looks wrong, the page just refused to load at all. I have noticed that a number of sites, especially ones using HTTPS, don't work with all my browsers - again, total failure. Chrome gives me an error message for the HTTPS ones about 'can't match certificate', or some such, which leads me to believe that my local ISP is doing some sort of HTTP caching which is messing up with some secure sites. Or something like that... :-) But I just tried again, and now that site works with all of them. Odd. Noel

11 years, 10 months

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HP 9635C System information- Just got one

by slandon110＠gmail.com

I just picked up an HP 9635C, found it on craigslist about a 1.5 hour drive from here. Rescued for a friend in upstate NY, I cant get it to boot off any of the disks that it came with, it reads then gives I/O error. Also is it easy to make boot disks for this thing and is there a source of images??, Id really like to get this thing operational before I hand it off to him Thanks Steve

11 years, 10 months

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Using an 8" drive on a PC

by jnc＠mercury.lcs.mit.edu

Ooops, just realized this went to both the list, and me: > From: Chris Osborn > On Sep 21, 2014, at 3:39 PM, Noel Chiappa wrote: >> Epsilon. ("Wasau.=94) > Will it fit on a 360k floppy? Well, it depends on what OS you're talking about, and which version of Epsilon. The one I use (which is circa 1996) is Version 8, which is for Windows 95 and later, and the .exe file is 261KB, so yes - sort of. You also need a 'state file', which is all the settings, pre-loaded interpreted code, etc (most of the 'editor' is actually interpreted code - the .exe file just provides a system with underlying primitives useful for writing an editor, e.g. support for buffers, windows, etc), and that's another 180K+. So if you have two floppy drives, yes. One... not so sure... I haven't ever tried to run it without a state file, to see what it's like, but it's probably unusable. But you might be able to make a stripped-down version whose state file would be small enough to fit on a 360K floppy along with the .exe. It also has the ability to demand-load code (e.g. if you have a rarely-used function attached to C-A-^, you can cause that code to be loaded only the first time you hit C-A-^ - makes the basic state file smaller, and faster to load), and you could use that to put the code for a lot (all, if you wanted, I suppose) of the commands on a second floppy. They did make much earlier ones (I started using it under DOS, back in '87 or so), and that version is probably smaller, but I don't know how much smaller (and don't have the ability to go check - I think those files are on 5.25" floppies, and I don't have a working 5.25" drive at the moment - one more thing on the to-do list, sigh). As far as I'm concerned, it really is the bee's knees - I can't say enough good things about it. Noel

11 years, 10 months

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PDP-11 floating point: Move KEF11-A from KDF11-A to KDF11-BA?

by earl＠retrobits.com

Hi there, I have a floating point processor (FPP) on a currently unused 11/23 CPU M8186 card (KDF-11A). From the manual, looks like this is a KEF11-A. Also, in my working 11/23+ with KDF-11BA, I have no FPP. Makes it hard to use Fortran-77. The KDF-11BA manual refers to a KEF-11AA FPP. Does anyone know if the FPP unit is compatible from the 11/23 to the 11/23+ - i.e., can I transplant the FPP chip from the 11/23 to the 11/23+ CPU card? Could it be that simple? :-) Please be gentle if this is a stupid question. I've used my best Google-fu and RTFMing to find the answer (and learned some new things about these cards in the process). Thanks! - Earl

11 years, 10 months

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Looking for a video card for a Sparc Station 5.

by wlewisiii＠gmail.com

I have a Sparc Station 5 that I am intending to get up and running with SunOS 4.1.4 on one disk and OpenStep 4.2 on the other. The last remaining hurdle is video. The CG-3 card that is in it either is not able to push the 1024x768x77 it's supposed to or not able to talk to any of my monitors. I'm deep in the heart of flyover in Hayward WI so trying a to find another video card is easier than a different monitor. I'm looking for an S-Bus CG6 of the TGX or TGX+ versions or a Sparc Station 5 specific S24 24 bit video card. The TGX cards are supposed to be able to push a resolution of 1024x768x60 that should be able to be used by generic SVGA monitors. Thanks for your time and any assistance. William -- Live like you will never die, love like you've never been hurt, dance like no-one is watching. Alex White

11 years, 10 months

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Looking for a video card for a Sparc Station 5.

by Arno_1983＠gmx.de

"Brian L. Stuart" <blstuart at bellsouth.net> wrote: > > The CG-3 card that is in it either is not > > able to push the 1024x768x77 it's supposed to or not able to > > talk to any of my monitors. > > My recollection is that the CG3 (and the CG6 as well) is a fixed > rate card for 1152x900x8 at 66Hz. > > BLS Depends a lot on the actual implementation methinks. What may be true for the original sbus card may well have changed with more modern, integrated versions. Like I said, the cg3 in a SPARCclassic natively supports at least 1152x900 at 66 and 76 Hz and 1024x768 at 60, 70 and 77 - I don't know for the SS5, but when you navigate to the framebuffer node in the OBP prompt (like /iommu at 0,1000000/sbus at 0,10001000/cgthree at 3,0) and do "words" there, anything starting with "r" followed by a mode description should be a supported mode that you can specify for output-device (like screen:r1024x768x60, which is what I would try) Beyond that, there is always the opportunity of hacking an unsupported resolution in by computing the corresponding numbers and generating a resolution setup word by yourself. They basically just contain a mode line like " 08,02,37,37,08,155,21,04,39,169,0,7,60,1024,768" (for 1024x768x60) which is a bunch of setup values that are poked into registers on the framebuffer by the setup FCode. Arno

11 years, 10 months

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IBM 1052

by BHuntsman＠mail2.cu-portland.edu

Hi! Would anyone here be interested in purchasing a 1052? I acquired two of them a while back, and since I just recently moved, could use the space more than the museum piece. I assume it's in non-working condition, but it's complete, and it's a 1052... :) -Ben

11 years, 10 months

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pdp BASIC-11 query

by jwest＠classiccmp.org

I'm posting this on behalf of someone not on the list. I didn't want to just open them up to tons of replies, so figured I'd just post it for him and relay any responses back. Can anyone solve his issue? He wrote.. I'm trying to get some code that was written in 1977 working again. I've gotten a PDP-11 emulator working but the version of BASIC that is on it doesn't know the 'FILE #1="DNG1' command. I've been digging through BASIC manuals for BASIC-11 and BASIC-Plus but so far they either don't have an file reading or their file reading commands don't match that syntax. Googling has led me to a few other versions of BASIC that were on the PDP-11 but I can't find manuals for them. Can you point me in the right direction? (The full code is here; https://d2sx9mrt4zumaq.cloudfront.net/wp-content/uploads/2014/04/DND1_Comple te.pdf) (And it is part of this contest; https://www.shroudoftheavatar.com/?p=39149) --- 00010 LET J4=1 00030 PRINT 00100 BASE 0 00110 LET X=0 00120 LET J=0 00130 LET K=0 00140 X1=0 00150 LET X3=0 00160 LET J9=RND(CLK(J9)) 00170 DIM C(7),C$(7),W(100),D(50,50),P(100),I$(100),B(100,6),B$(100) 00180 DIM E(100),F(100),X5(100),X6(100),X2(100),X4(100) 00190 LET G=INT(RND(0)*24+2) 00200 LET H=INT(RND(0)*24+2) 00210 FILE #1="DNG1" 00220 FILE #2="DNG2",#3="DNG3",#4="DNG4",#5="DNG5",#6="DNG6" 00230 RESTORE #4 00240 FILE #7="GMSTR" 00245 RESTORE #7 00250 RESTORE #1 00260 RESTORE #2 00261 RESTORE #3 00262 RESTORE #4 00263 RESTORE #5 00264 RESTORE #6

11 years, 10 months

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Pdp11/34 -15V power supply

by roeapeterson＠gmail.com

Does anyone know offhand what the -15 volt power supply was used for in a BA11-K pdp11/34 enclosure? Thanks.

11 years, 10 months

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11/84 boardset (was: equipment available)

by mtapley＠swri.edu

Jay, On Sep 24, 2014, at 12:00 PM, cctech-request at classiccmp.org wrote: > The 11/84 board set has been claimed. I replied in PM, may have got spam filtered, no response yet. Interested in AlphaServer 2100 memory boards, if available. Others, please pardon. - Mark

11 years, 10 months

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Looking for a video card for a Sparc Station 5.

by aperry＠snowmoose.com

William Barnett-Lewis <wlewisiii at gmail.com> wrote: > > I'm looking for an S-Bus CG6 of the TGX or TGX+ versions or a Sparc > Station 5 specific S24 24 bit video card. The TGX cards are supposed > to be able to push a resolution of 1024x768x60 that should be able to > be used by generic SVGA monitors. > There is a CG6 TGX on eBay with a $20 Buy-It-Now price (and free shipping). http://www.ebay.com/itm/Sun-501-2325-SBus-TurboGX-8-Bit-Color-Frame-Buffer-… I have a collection of SPARCstation lunchbox systems (IPC, IPX, Classic, LX) and an Axil 320 (a SS20 clone), all connected to 5-year-old LCDs. Not all generic SVGA monitors like to connect to Sun frame buffers. I have a ViewSonic that doesn't work with them, but have had no problems with various Samsungs. alan

11 years, 10 months

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Sun Ultra E6K Question

by alexmcwhirter＠mojovapes.net

I'll be picking up an E6K from a local university next weekend. I'm not sure exactly what hardware it has installed, but i know it has at least 10 cpu boards. I was wondering if these machines had the same ability of the E10K to segregate the CPU's into multiple systems in order to run multiple operating system instances independently?

11 years, 10 months

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Inventory of remaining IBM S/360 CPU's.

by Arno_1983＠gmx.de

Christian Corti <cc at informatik.uni-stuttgart.de> wrote: > > We have a 4331, too. Perhaps you already know our site/machine. Nope, I just found out about your machine when I saw it on Henk's list. > What do you mean with "start up the main processor"? Doing an IPL? Hmm...I don't remember the specifics after all those years, but basically: when you switched on the machine, the fans and some minor power transformer/PSU would power up, the Service Processor would boot from an old squeaky 8" floppy drive and issue some progress indications on the terminal. At one point, you could hit a key (combination?) to get into some kind of setup menu, where you could e.g. enter what sort of device was connected to each terminal port. You could stay there and browse that menu to your heart's content, but if you did not enter or did quit the menu, the SP would try to power on the main part of the machine - you heard a clunk from some large contactor, the buzz of the main transformer(s) would kick in for like 1-2 seconds, then everything (including the SP supply) would be shut down (several more clunks, fans spinning down), leaving the machine powered off again - without an error indication on the terminal. > > One related machine I know of (a 4361) is kept at IBM's Museum in > > Sindelfingen; we were there to get the pinout of the System Panel > > They also have a 4331 AFAIK. At least they took the 3370 drives that were > part of the machine we got some years ago. We kept the 3340 and 3344 > drives. Perhaps they didn't have it back then, or it was in storage and we were only shown the 4361 because that was on exhibition. I don't however remember anybody telling us about a 4331 there. > > machine (manuals, schematics and faultfinding charts) but don't really > > know where to start with our Problem. > > MAP - Maintenance Analysis Procedures. Yep, that's what they were called :) jwsmobile <jws at jwsss.com> wrote: > I would rely on the MLM's and other service documentation. They have > pretty good procedures of testing to follow and solution matrices to > follow to remedy the problems. If you are following those and have > encountered a problem, then you should have something that can be helped > with. I've brought up a few systems and you have to go thru the tedious > process of running all the tests sometimes to find something, but things > I have had wrong fell out of tests where I would not have thought to look. Of course we tried following those procedures, but there were several entry points and maybe we just always missed the right one. Somehow the path always went off into the woodwork, with things like preconditions that were not met in our case. Christian Corti <cc at informatik.uni-stuttgart.de> wrote: > You haven't asked so far, did you ? (I don't remember) Probably not since you joined the list. Keep in mind that of this was more than ten years ago and I had not pursued those issues much, as the system is not in my custody, I only get to chat with its current owner a couple times a year at most, and we both have had other fish to fry through all those years. But after all, I still yearn to bring that project to some rewarding conclusion :) > What drives and OS tapes do you have? No (intact or restorable) drives except for the two internal 8" floppy drives, no software except for two IML (bad original that had been stored inside the drive, intact backup) and I think one diagnostic floppy that came with the system. What's there is a 3262 high speed printer and some sort of remote terminal server that came from a large mail-order outfit (Quelle Versandhaus F?rth). I'm all for sourcing period peripherals if possible at all, but if we can't, our alternate idea is to furnish some sort of channel drive emulator with a modern hard drive, like Mr. Zabolitzky and his guys at Cray-Cyber.org did for their CDC machines. > The 4361 is great because it has the storage director integrated in, and > you can run a complete system with just a terminal, a tape drive such as > the 4311 which has the tape controller and drive integrated together, > and disk drives. > > It is a great VM personal system if you have one. A friend had one to > himself for 2 years at UMSL at one time. Sad these all got broken up > for the price they brought. I shall see whether I can get together with the owner at some time again and get some diagnosis and work done on the machine. However I don't have any idea whether that is even possible in the place where the machine is currently stored. Of course I'm all ears for more suggestions and anecdotes about these machines and leads towards associated stuff. So long, Arno

11 years, 10 months

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FS: Wyse WY150 Terminal and Sun Multipack 12 drive Array- Fully populated w/ 12x

by slandon110＠gmail.com

Hey guys clearing out some stuff since I got some new goodies at VCF A nice Wyse WY150 terminal with nice clean keyboard- Works Great $50 plus shipping A Sun Multipack 12 Drive Array with 12x18GB Drives- This thing is heavy 40lbs. So first 50 bucks gets it plus shipping.

11 years, 10 months

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WTB: Dec alphastation 4100 memory/video

by tpresence＠hotmail.com

If anyone happens to have alphastation 4100 memory/video cards for sale, please let me know. I will need them to ship to Colorado, USA. Kevin

11 years, 10 months

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Is plastic National Semiconductor (NS) TTL chips worse than others?

by mattislind＠gmail.com

After the successful restore of the HP9830B I continued with the HP9810A that I was able to get from the Swedish Maritime Administration. ( http://www.datormuseum.se/computers/hewlett-packard/hp9810a ) The machine has been sitting in a storage container for many years until I was able to rescue it. And of course it was dead. Testing the CPU boards in the working 9830 gave that three out of four boards were faulty. This far I have replaced four TTL chips. Three on the clock board and one on the ALU board and all of them are made by National Semiconductor, date codes are mid 1972. All are plastic DIP. The failure mode seems to be that the outputs are floating. I guess that the bonding wires are broken. Can it be that the moisture in the storage container that has made it into the chips corroding the wires? What is the experience when it comes to different manufacturer and plastic DIP TTL? Which are better, which are worse after 40 years?

11 years, 10 months

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Mac 512k for sale

by tlindner＠macmess.org

Includes: Mac External Floppy drive Keyboard Second keyboard, with some not working keys Numeric Keypad Mouse Photograph of Mac for sale: http://www.macmess.org/images/coco/Mac-Hero.jpg Located: California, Bay Area, 94520 (All offers should include a description of how you want the machine packed, plus your carrier choice) -- tim lindner

11 years, 10 months

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11/84 boardset (was: equipment available)

by jwest＠classiccmp.org

The 11/84 board set has been claimed. J

11 years, 10 months

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Available Items (Indianapolis)

by jon＠jonworld.com

All, I'll be back in Indianapolis this coming weekend and need to find homes for the following. They are free for pick-up only. I do not have the time or funds to ship them. They need to be picked up Sep 26-28th. 1) Tandy Dot-Matrix printer. The printer has 2x modes, one does straight IBM-PC B&W emulation. The other is color Epson LQ-2500. It takes fanfold paper (I think I have a small amount with the printer.) I believe I have a spare ribbon or two as well. 2) Parallel-port based flatbed scanner. I think it's a UMAX or similar type of B-list brand. -- -Jon +32 0 486 260 686

11 years, 11 months

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FYI - terms of "equipment available" emails

by jwest＠classiccmp.org

>From time to time I do seem to get a pretty fair number of requests from entities to claim equipment, and 99% of the time I post those opportunities (only) here. I just wanted to list what I expect when I hand off those deals to someone. This has never been an issue in the past or present, but figured I'd codify it here. If you respond to me on one of those "equipment available" deals, I'm assuming you agree to do the following: Make contact with the owner in a timely fashion Work out a fair (to both you and the owner) deal to acquire the machines If a deal cannot be reached, let me know quickly so that someone else can be found to make a second attempt Make every effort to obtain/include any documentation/software available with the machines Pick the equipment up in a safe and professional manner with all due care for both the machines and the owners home/building/facilities Actively work to restore the machines to full running condition Ensure that the machines are never destroyed or thrown away Ensure destruction of any owner-specific documentation/software Make available any (non-customer-specific) documentation and/or software to other collectors Ensure that if you ever no longer wish to keep the machine that it winds up in the hands of another collector That's all I ask J J

11 years, 11 months

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more crap with the P112 parts

by dgriffi＠cs.csubak.edu

I've been going round and round with Mouser about how much I need to pay for kitting up parts for the P112 kits. They're telling me that the great deal I got last time for the kits was an error -- two errors in a row. So, what this means is that I need to sell three more P112 kits before I'll have the money to buy the parts I need. Come on. There's got to be three more people out there who want P112 kits. Please? -- David Griffith dgriffi at cs.csubak.edu

11 years, 11 months

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A DEC style connector

by aek＠bitsavers.org

just came across this http://www.ecsconn.com/CatalogPDF/ECS%20CATALOG.pdf has a dec-style single wide 2400 series connector in it. who knows if you can still get it. it also isn't a functional replacement for the Sylvania DEC connector blocks either, but it has extra insertion depth.

11 years, 11 months

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Inventory of remaining IBM S/360 CPU's.

by Arno_1983＠gmx.de

Henk Stegeman wrote: > Hi, > > I have compiled a list with all known remaining IBM system/360 CPU's, their > owner, location and if avail a picture. > This webpage also links to other remaining IBM hardware lists. > They are all very short compared with the number of systems IBM ever > produced. > > http://www.ibmsystem3.nl/System360/ > > Any input to make this list more complete is welcome. Hello, nice job, thank you for the effort put into that list. Is there also an interest in newer, 360/370 compatible machines, and perhaps a similar list for, or an intention to integrate those? I ask because I was (am?) involved in a rescue Operation for an IBM 4331 that went into a private collection in Munich some 15 years ago; after disassembly and transport, the machine was reassembled at VCFe 4.0 as a Work in Progress exhibit, and has meanwhile reached the same state of functionality that was described to us by the previous owner: Support processor will boot and can be interacted with on the System terminal, attempting to start up the main processor shuts the whole machine down again. One related machine I know of (a 4361) is kept at IBM's Museum in Sindelfingen; we were there to get the pinout of the System Panel connector (that was missing in our machine) and had some correspondence with the guys there (who attributed our Problem to some sort of misconfiguration - the actual installed Hardware, "tie-downs" inside the machine, and the configuration on the service processor boot floppy have to fit together in order to get stuff to work), but unfortunately we didn't get anywhere yet - we have a bunch of documentation for the machine (manuals, schematics and faultfinding charts) but don't really know where to start with our Problem. Perhaps getting into contact with other owners will finally get this baby flying again! So Long, Arno

11 years, 11 months

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Equipment Available

by jwest＠classiccmp.org

Just confirmed with owner.. A complete boardset for a PDP-11/84 is available in Sydney, Australia. Please contact me off-list if interested. Additional notes: Please don't email asking what boards are in the set, or if you can only get particular boards out of the set. I don't want to deal with the details. When I post a deal, if you want it you go after the whole deal and work out any details yourself by contacting the owner directly. If you want to make certain spares/parts out of the deal available to other collectors - that's great, post to the list after you get the gear and do what you wish. Best, J

11 years, 11 months

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Inventory of remaining IBM S/360 CPU's. (Henk Stegeman)

by isking＠uw.edu

On Mon, Sep 22, 2014 at 10:00 AM, <cctalk-request at classiccmp.org> wrote: > > Message: 3 > Date: Mon, 22 Sep 2014 17:47:16 +0200 > From: "Henk Stegeman" <h.j.stegeman at hccnet.nl> > To: <cctalk at classiccmp.org> > Subject: RE: Inventory of remaining IBM S/360 CPU's. > Message-ID: <LEEAKOBMDOCBLGHAMGACEEOCDPAA.h.j.stegeman at hccnet.nl> > Content-Type: text/plain; charset="iso-8859-1" > > Hi, > > Thanks for all the contribution. > > I have updated the list with an 360/6x and a surviving 370/148 > http://www.ibmsystem3.nl/System360/ > > Henk, Regarding the Sindelfingen Model 20 (which is now at B?blingen, along with the rest of that collection), it includes a 2560 MFCM and a 1403 printer. I had the privilege of visiting there last year. And despite rumors of the collection's demise, it was successfully moved from the Sindelfingen building, an ancient and creaky structure which was due to be demolished, to the IBM research facility at B?blingen. Unfortunately, that has severely limited access to the collection. (They also have a running 370, but I don't recall details. I can get them if you like.) -- Ian -- Ian S. King, MSIS, MSCS Ph.D. Candidate The Information School University of Washington Give a man a fire, and he will be warm for the night. Set him on fire, and he will be warm for the rest of his life.

11 years, 11 months

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Equipment Available (note, not RE:)

by jnc＠mercury.lcs.mit.edu

Hello Jay, are my emails getting through? (Sorry about the list post, I think I may have a problem.) If not, I am interested in the 11/05 (if it's stil available). Noel

11 years, 11 months

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3M cart band tension

by aek＠bitsavers.org

I just thought of a really simple way to tell if the band in your 3M cart is shot if you don't happen to have a tension meter handy. Take off the cover of a known good cart, set it on a table with the capstan roller facing away from you and pull the band at the edge closest to you with your index finger. The cart will move towards you on the table after about one row of dots (for example) on the baseplate of belt deflection. Good belts will provide quite a bit of tension by the time you reach the edge of the cart. Obviously, the exact values vary with the friction on the surface you're using, but you get the idea. Bad belts have significantly less tension and require a lot more deflection to produce enough force to overcome the friction of the table.

11 years, 11 months

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Equipment Available (note, not RE:)

by jwest＠classiccmp.org

Yet another opportunity crosses my desk.. I just heard back from an initial contact email and the equipment is still available. Available in Tyler, Texas: PDP-11/05 VAX 11/730 Alpha 2100 AED 8" Floppy Drive "Numerous DEC boards & components" I am loathe to pass this deal on, as I kinda sorta want the 11/05 J But.. Contact me off-list if interested. Best, J

11 years, 11 months

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FS: large sale of computers, parts and accessories

by mgariboldi＠gmail.com

Anyone interested in the following? I'm open to offers. I'm located in the Netherlands and I'm willing to ship, also internationally (as long as it's covered of course). - HP-branded S2io/Neterion 10-Gbit ......... I should have (10GBASE-SR) fiber-optical ethernet ...... about 4 of PCI-X NICs, VMS and IRIX compatible ...... these or so. .......................................... Make me an .......................................... offer. - various HDDs, mostly 3?" SCSI, incl. ..... Ask for more old types like Quantum (e.g. Viking II ... information. RZ2CC-KA), Seagate Cheetah (e.g. ......... ST34501WC), IBM (e.g. DDRS-34560 ......... I can also E182115S), Micropolis (50-pin, ........... provide 4?-Gbyte), various Compaq/HP (from 9.1 ... pictures and up to 146~147-Gbyte and 300-Gbyte) and ... additional more, mostly 80-pin SCA/SCA2, 68-pin ..... information. and also a good amount of 50-pin disks ... - various HDD sleds, including of Dell/ .... About 24 in Origin Storage, IBM, HP/Compaq, Intel/ ... total of all SGI ...................................... vendors and .......................................... types. .......................................... .......................................... Ask for more (P/Ns incl.: MF666 DSH8, 59P5235/ ........ information. 06P6245, FRU 90P1386/59P5224, ............ 351126-001, 5065-5221 'Rev. A' ........... a.k.a. HP "ring") ........................ - complete DEC VT220 terminal plus LK201 ... Idem ditto. keyboard, can also add one or more ....... suitable serial cables, green monitor .... - various HP/Compaq/DEC LK-series .......... Idem ditto. (Video Terminal/OpenVMS) keyboards, ...... incl. DEC LK201 (with VT200), LK46W-A1 ... (or LK46W-A2, need to check), HP LK463 ... with USB interface, PS/2 adapter and ..... documentation ............................ - many SCSI items, HVD and especially ...... Idem ditto, LVD/SE, including various types of ....... ask me for (and conversion) cables, also things ..... numbers, as like terminators, by brands like ......... I have fair RoLine/Computer Accessories, HP and ...... quantities, others, also a rare and unusual .......... but also the FC<=>SCSI bridge (which works in both .... pin/interface directions, will mention it .............. type(s) and separately later), tape streamers I ...... such, of will mention below ....................... course. - SCSI tape streamers and tapes, mostly .... Incl. cleaning DDS/DAT and LTO Ultrium types, like ...... cartridges. DDS-2, DDS-3, DDS-4 (DAT40), DDS-5 ....... (DAT72), DDS-6 (DAT160), LTO-1 (full- .... Ask for quantity height) and LTO-3 (half-height) .......... and availability. by vendors like Quantum/Certance, HP ..... and Sony ................................. - various PCI, PCI-X and PCI-Express ....... Idem ditto. expansion cards, including a (3.3 V) ..... AlphaStation DS15 PCI/audio option(?), ... I can also various USB 2.0 (5 V) PCI card(s), HP .... provide all IEEE-1394a FireWire (3.3 V) PCI board, ... the part HP GbE & 2-Gbit FC combo card (PCI-X, .... numbers. P/N A9784BX, 2 of these), Adaptec ........ SlimSCSI 1460D (P/N 1807400A) PC Card, ... ATTO Celerity FC42ES (4-Gbit FC PCI-E) ... Broadcom BCM5704 (dual-port PCI-X, ....... IRIX-compatible), SGI DMediaPro DM10 ..... (3.3 V, IEEE-1394a FireWire PCI) and ..... also the aforementioned 10-Gbit .......... ethernet NICs, of course ................. - SAS/SATA cables, disk cage with sleds .... Idem ditto, (i.e. for in a PC, 5?") and more ......... plus photos. - various LC (LC/LC) fiber-optical (e.g. ... Idem ditto. FC and ethernet) cables .................. - various computer power supply (e.g. ...... Contact me. Molex) power cables and such ............. - SGI Tezro quad-processor workstation, .... Definitely with tons of extras, including max. ...... contact me. memory, VPro V12 (Odyssey) plus DCD, ..... DM3, DM5, 10-Gbit ethernet, 4-Gbit FC, ... Very rare/wanted 3-Gbit SAS, SDI I/O and much more, ....... system, as you just like was used in film industries .... may have heard (incl. Hollywood) and broadcast for ...... or perhaps know. years, comes with IRIX ................... It's the last 6.5.28 pre-installed (can also ........... true IRIX install 6.5.30) .......................... workstation. - modified and maximized DEC Multia/UDB .... Interesting VX40B, with max. RAM, 72-Gbyte SCSI ...... little system disk and running HP Tru64 UNIX V5.1B-4 ... that has been (2010~'11) ............................... powered down .......................................... much and could .......................................... use a new home. - various IBM ('System x') x346 parts ...... Various things, .......................................... contact me if .......................................... you should need .......................................... or are looking .......................................... for anything. - various PCI, AGP and PCI-E video/ ........ Idem ditto. graphics cards, mostly of AMD/ATI and .... NVIDIA ................................... - Wacom Intuos3 (USB), DIN A4-sized, ....... Can show pictures graphics/digitizer tablet, in good but ... and more. used condition, comes in original box, ... plus documentation, driver CDs, etc., .... can also add spare overlay sheet ......... - various types of older Wacom Intuos ...... Idem ditto. and Intuos2 serial and USB tablets ....... - various boxed software, incl. things ..... Contact me about like PageMaker/FrameMaker for SunOS/ ..... this. Solaris SPARC ............................ - books, various on computing, specific .... Idem ditto. about OpenVMS (incl. web serving), ....... guides, manuals and more ................. There's definitely more, but this will be it for now. This is surely the list of items that I need to get rid of most 'urgently' (especially in terms or regaining space). I'm above all offering all of this because I've transitioned back to the world of graphic design and art, so much of this won't be of much use anymore to me. In some instances I'm selling because I need the space or because I have or am going to upgrade (especially in the case of the SGI Tezro workstation). In case you were wondering about it. Anyway, I would like to sell all of this (unless there is something interesting to trade, that could be of use to a graphic designer like myself). If I don't manage to sell it here, I will either place things on (e.g.) eBay, part out, or recycle much of it, in the near future. - MG

11 years, 11 months

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Equipment available

by jwest＠classiccmp.org

An entity in Canberra, Australia has equipment available. "Mustard" DEC rack PDP-11/10 RX0x ASR-33 Misc extra boards, manuals, papertapes All appears to be in very good condition. Contact me off list if interested - please - only if you can pull off a pickup (local pickup ONLY) in Australia. Best, J

11 years, 11 months

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AMPEX memory for PDP11

by useddec＠gmail.com

I recently came across two AMPEX 3281100-03 16K x 16 core boards (top board 3281517-01) and want to put then in an 11/05. Does anyone have any info on these? I'm trying to find backplane, jumper, voltage and any other info. Thanks, Paul

11 years, 11 months

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Inventory of remaining IBM S/360 CPU's

by marc.verdiell＠gmail.com

Paul's 709 is at CHM. Not sure about the 370. Marc

11 years, 11 months

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"Smartcom II" package available

by earl＠baugh.org

> Date: Wed, 17 Sep 2014 13:55:30 -0400 (EDT) > From: jnc at mercury.lcs.mit.edu (Noel Chiappa) > Subject: Re: "Smartcom II" package available > > > From: Fred Cisin > > > The fact that it was ... in a package of similar size does NOT mean > > that it contains 8" disks. > > Argh! I looked at the package for like 12 msec, hefted it for 29 msec to > see > what kind of noise it made / how the internal mass felt, and _guessed_, > based > on 17 nsec of thinking about it, that 'I suspect ... 8" floppies'. > > Had I stopped to think, I probably would have come to the same conclusion: > for original PC; original PC only had 5.25 inch floppies (which I had to > look > up, I couldn't remember off the top of my head - my first was a KayPro AT) > --> probably 5.25" media inside - but I didn't, I wasn't that interested, I > just wanted to find a good home for it! > > (And no doubt the seller made the same mistake, which was why it was in > with > a bunch of 8" floppies...) > > FYI , while not to disagree with the conclusion that this package is on 5.25 media, there WERE MS-DOS machines that came with 8 inch floppies (as the only floppies) I have one of these : http://oldcomputers.net/nec-apc.html (which instead of APC it is lovingly refereed to as the "hernia-ator" since it's ridiculously heavy.... :-) ) So, while I'm not sure there was Smartcom ever for this system, having it on 8 inch floppies would be the way to get it loaded... Earl

11 years, 11 months

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getting the most out of my compaq 386

by starbase89＠gmail.com

Hi. I recently acquired a Compaq Portable 386. I know its not quite old enough for this list, but I figured there might be someone on here who knows about what I'm looking for. My goal is to make this machine capable of modern tasks. First, I am looking for the expansion chassis so I can add a networking card. It currently had a QIC tape drive in the expansion slot. I was also wondering if the 20MHz 386 could be upgraded to a 486, or perhaps a Pentium Overdrive. Thanks for any info in advance, Joe

11 years, 11 months

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Shugart 850 vs. 851

by cctalk＠fahimi.net

I've looked through manuals and can't come up with something definitive: what is the difference between the 850 and an 851 (or for that matter 800 vs. 801 or 900 vs. 901)? TIA! -Ali

11 years, 11 months

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Inventory of remaining IBM S/360 CPU's

by marc.verdiell＠gmail.com

Ignore what I just said. You were referencing Paul's 370 of course, not his 709. I am two generations off at least. Too much wine in France tonight. Marc > Message: 14 > Date: Sun, 21 Sep 2014 14:00:15 +0200 > From: "Henk Stegeman" <h.j.stegeman at hccnet.nl> > To: <cctalk at classiccmp.org> > Subject: Inventory of remaining IBM S/360 CPU's. > Message-ID: <LEEAKOBMDOCBLGHAMGACIENJDPAA.h.j.stegeman at hccnet.nl> > Content-Type: text/plain; charset="iso-8859-1" > > Hi, > > I have compiled a list with all known remaining IBM system/360 CPU's, their > owner, location and if avail a picture. > This webpage also links to other remaining IBM hardware lists. > They are all very short compared with the number of systems IBM ever > produced. > > http://www.ibmsystem3.nl/System360/ > > Any input to make this list more complete is welcome. > > Regards Henk >

11 years, 11 months

3
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Yes! a PDP8/f in the collection

by simski＠dds.nl

Hello all We at hack42.nl are very proud to announce that we have a dec pdp8/f in the collection. it is part of a lab system and has a BA8-AA with some more boards. The most inportant is that we have several boxes of documentation, logbooks, field service reports, print sheets, software on papertape and 8"floppy. only the wrappings of the sandwiches of the field engineers are missing. :-) We have not fired the machine up yet, but taken a lot of pictures and document the configuration. first we need to check and condition the lineair powersupplies for the 8/f and the BA8-AA and clean the airflow filter foam. this is a fruitious 2014 so far for hack42, with the haul in august not even sorted out yet... Oh and Jack Rubin: there is a 16kword Keronix 812075 in this machine as well. maybe we can compare things later on. pictures: https://hack42.nl/gallery/v/Museum/pdp8/ info on this machine so far: https://hack42.nl/wiki/Digital_PDP-8f -- Met vriendelijke Groet, Simon Claessen drukknop.nl

11 years, 11 months

1
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cctalk Digest, Vol 133, Issue 41

by dm561＠torfree.net

----- Original Message ----- > Date: Mon, 22 Sep 2014 10:50:11 +0000 > From: Chris Pye <pye at mactec.com.au> > Tantalum capacitors are a type of electrolytic, and are usually polarised > (I?ve never seen one that isn?t). > > They usually burn up pretty quickly if they are the wrong way around. > > > Chris ----- Reply: ----- True enough, but there were sort-of non-polarized tantalum caps; IBM used them on many of their boards. They had three leads with the two outside leads internally connected together, so it didn't matter which way around you inserted them. m

11 years, 11 months

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