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

by cc＠informatik.uni-stuttgart.de

The rsync daemon on bitsavers is still down, and noone seems to know the reason why. I've already got a request from someone using my mirror on a regular base... At least, one could expect a notice on the home page. Christian

15 years, 3 months

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DEC Legacy Event 2011 Announcement - October 8th, 9th 2011, Windermere, UK

by mark＠wickensonline.co.uk

I'm pleased to announce DEC Legacy 2011 which will take place on the weekend of October 8th-9th 2011 in Windermere, UK. Following the success of last years event I would like to invite all those interested in DEC's range of computers to join me and other DEC enthusiasts for the two day event to celebrate the fantastic work of Digital Equipment Corporation and the legacy it has inspired. Registration is Open. More details at: http://declegacy.org.uk Kind regards, Mark Wickens Event Organiser

15 years, 3 months

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For future reference

by dgriffi＠cs.csubak.edu

I've sold stuff to several cctalk list members over the years and I like to think it has all been pleasant. This evening I was accused by someone of shilling an auction for an XCOMP ST/S hard disk controller board set. I'm quite interested in your homebrewing efforts and I wish I had the space and money to buy some of your wares. Accusing people of impropriety is not the way to earn accolades. -- David Griffith dgriffi at cs.csubak.edu A: Because it fouls the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting. Q: What is the most annoying thing in e-mail?

15 years, 3 months

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AM27S185 PROMs

by technobug＠comcast.net

A friend who currently runs an PDP11 as part of his business had a failure of one of the PROMs in his disk/tape controller. These beasts seem to be unobtainium - does anyone have any spares in their kit or know of a source. Understand that the chips are one-time-programmable so pulls aren't a reasonable solution... CRC

15 years, 3 months

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AM27S185 PROMs

by technobug＠comcast.net

On Tue, 05 Apr 2011 11:33:39 -0700, "Chuck Guzis" <cclist at sydex.com> wrote: > Jameco is still selling TPB24S81 PROMs: ?? > http://www.jameco.com/webapp/wcs/stores/servlet/Product_10001_10001_27 > 828_-1 > > Looks like a pretty close match. Of course, you have to find someone > to program the darned things. > > --Chuck Thanks for the link. I believe the N82S186 is the same chip. The bit rot extends to this biological entity because I now remember that I fought these nasties years ago in a different computer in a different universe. On Tue, 05 Apr 2011 14:36:59 -0400, Dave McGuire <mcguire at neurotica.com> wrote: > I can program them.. > > -Dave Thanks, but my trusty BC Micro can do the job. My first inclination, when asked to look at the problem, was that one of the bipolar ROMs had gone south. My friend had an identical SpectraLogic board that had died many years ago, but had the same configuration. We pulled the PROMs and did a compare to ensure that they tracked. One of the two hardware configuration PROMs read, but wouldn't self verify. Nor would it reprogram. Switching the good PROM from the failed board brought the system back up. We ducked this bullet, but getting a few spares in to go with our library of PROM content should help in the future. Again, thanks for the help, CRC

15 years, 3 months

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CMD MSCP controllers

by aek＠bitsavers.org

http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=200591760912 Seems like a decent price for a QBus controller. I seriously doubt anyone could build one for $125

15 years, 3 months

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OT: Telephone Network block repair

by ard＠p850ug1.demon.co.uk

Lat week I asked about removing the potting compound from a 425E Network block in a Western Electric 500 telephone. I have no successfully repaied this unit, so I wil ldescribe what the problem was. On my line simulator, the phone worked properly apart from the fact that the microphone (mouthpiece, transmitter, whatever) didn't do anything. Checks shows 0V between the terminals (its a carbon microphone, of course, so you'd expect a standing DC votlag here). Also, the votlage drop across the phone when off-hook (the simiulator provides a constant line current) was much lower than I expected. With thr telepghone unplugged, I could measure 22 Ohms (or so) between the microhone cup contacts with the microhopne removed. The same resistance was found between the R and B termainasl on the Netowork, even with the wire on the B terminal disocnnected. And yet agai nthe same resistance bwtween R and B witl all the wiring disconnectd from the Network. There's a 22 Ohm resistor inside the Network with one end conencted to the B terminal (and nothing else). Therefore I suspected a short from the other end of this resistor to something connected to R. at this point I decided to open up the Network, hence by posts last week. After getting rid of that potting compound, I found tha, yes, the 'other' end of that resistor did terst as a dead short to the R terminal. A bit of careful inspection showed that one of the enamelled transformer wires connected to the 22 ohm resistror passed over the lead of a 68 ohm resistor conencted to R, and that there was a short there. No, I didn't rewind the transformer. I desoldered the 68 Ohm ressitor lead and put a bit of sleeving on it. Tests showed the resistances between the Netowkr module terminals were now more reasonable, and after reassmbling the phone it works fine. Yes, I _could_ have bought a repalcement Netwrok block, but this is much mroe fun :-) -tony

15 years, 3 months

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Lisa: Some progress!

by snhirsch＠gmail.com

Woot! Some serious progress. In no particular order: - Non-functional keyboard was traced to a (surprise) badly corroded stereo phone jack. What threw me was that plugging in a straight Switchcraft plug for continuity checking showed everything ending up where it should. After I took off the side of the unit, I discovered that the right-angle molded plug on the keyboard cable does not get inserted far enough to make a reliable connection. This looks iffy even at best, but I'll start by replacing the jack. By removing the daughterboard that carries it and plugging the keyboard into it directly, the computer sees it. That's the good news. The bad news is that (also surprise!) there are a lot of dead keys. So perhaps I spoke too soon about it being intact. I have a Sun 4 keyboard on the way and will pick that for parts to get going quickly. - Non-functional diskette drive was pilot error, but I don't think it was on my part. There are two 20-pin ribbon cables leading into the drive cage and the wrong one was plugged into the Lisa Lite controller board. Hopefully that did not damage anything - it was like that when I opened the unit! Plugged the correct cable in and it now tries to boot the floppy. I inserted the Lisa Test 3.0 disk 1 and it chugs away for a bit before throwing a disk read error. Will try writing another copy on my mac, since this one may have been damaged while working on the loading mechanism. I'm very surprised that so much appears operational given the horrible state it arrived in. A testament to Apple's construction quality, for sure. Steve --

15 years, 3 months

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Anyone got a VT52 they'd be willing to sell?

by ian_primus＠yahoo.com

Been doing some cleaning here, and going through my various DEC terminals. I've got a pretty good set going, but I'm missing the ever-elusive VT52 (OK, yes, and the VT-05, but that doesn't count. <grin>). The one that has managed to elude me for years, however, is the VT52. I know they made a lot of them - it was an early standard of sorts, but they don't turn up nearly as often as VT100's do. So, anyone have one they'd be willing to sell me? I'm in NY, capital area. Working would be a plus, but complete is fine. I can usually fix things if all the parts are there. Speaking of elusive... would also love to find a Tektronix 4010, but... -Ian

15 years, 3 months

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peathens and hagans

by feedle＠feedle.net

> Although Oxford does not back me up on this, I was taught when younger > that *heathens* belonged to no organized religion, though they often > recognized (small) gods as influential in their lives. *Pagans*, on > the other hand, engaged in formal worship of major gods (or a single > non-Semitic-origin god), with organized priesthoods, etc. usw. k.t.l. > > The modern neo-pagans certainly fit the latter description. The Ya-Ya > Sisterhood fits the former. Considering the phrase "language is DEscriptive, not PREscriptive..." In Neopagan and "New Age"/"New Thought" circles, Heathens are often those who follow a ersatz reconstructionist tribal religion of the northern European tribal cultures, often Scandanavian/Norse in origin (but not exclusively, there are some more Germanic and Anglo/Saxon flavors as well). Juxtaposition being "Pagan", which tends to (but not always) be a slightly newer reconstructionist target (as in, the religion they are attempting to reconstruct is often post-Roman but pre-Christian), so consequently has a more cosmopolitain flavor, often integrating concepts of deity and belief that would have not been present in northwestern Europe (and in some cases are even Middle Eastern in origin). That said, "pagan" and "heathen" have similar origins, so the words get fuzzy. However, when talking about the various modern Neopagan religions, people have their own perceptions that differ slightly from both the classical and contemporary mainstream usage. Gay Neopagan Fairy doesn't mean what a lot of "normal" people think. In actuality, it's far far worse. Now, if you'll excuse me, I have to go peathen.

15 years, 3 months

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need a Pentium 75 and heatsink

by chrism3667＠yahoo.com

hope this isn't ot if you have one in your stash, let me know

15 years, 3 months

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VCF East update

by evan＠snarc.net

We have a few spots left for exhibitors. So if anyone out there wants to register, then let me know ASAP. We also have a few spots left for the hands-on workshops -- "Teletype 101" (in which you can win a good-condition model '33) and "Build your own transistor-logic circuit". Register for these via the "workshops" link at vintage.org/2011/east. (Regular admission tickets are only sold at the door.)

15 years, 3 months

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Y3K for PDP-11 Operating Systems

by jhfinedp3k＠compsys.to

Is there any interest in extending any of the PDP-11 operating systems so that they are able to support dates at least until 3000? While my personal interest lies with RT-11, I am curious if anyone has looked at the requirements for any of the other PDP-11 operating systems to determine what is required for Y3K date support? In addition, are the resources (technical knowledge, files to make the required changes and hardware to support the development) available? For RT-11, the resources are available and I suggest a review of the required software changes by anyone who has the technical background to evaluate any proposals for Y3K implementation. If other individuals who are interested in RSX-11, RSTS/E and TSX-Plus are motivated to support Y3K implementation for these OSs, I would be interested in providing support for any solutions required to exchange dates between all PDP-11 operating systems. I am not sure if there is any commercial impact to producing Y3K code for PDP-11 OSs. However, it is possible that any current commercial use MIGHT be more likely if Y3K support is available. On the other hand, it is almost certain that any Y3K projects for all PDP-11 OSs must be done without any commercial support at this time. Consequently, as with all DECUS contributions, any actual code changes would become available to everyone. If this enhances the commercial value of the PDP-11 OSs, then it should be a positive development. Responses and suggestions are appreciated. If, as I have noted in the past there is no response, then at some point when it seems worthwhile, I shall at least present the technical details of what is required to implement Y3K for RT-11. There may also be details of other enhancements along with RT-11 bug fixes. If anyone has a wish list for RT-11 or knows of any RT-11 bugs which need fixing, I would very much appreciate the help. Jerome Fine

15 years, 3 months

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A question about IBM 2780/3780 over TCP/IP for systems under simulation.

by mgemeny＠pgcps.org

A question about IBM 2780/3780 over TCP/IP for systems under simulation. Are their any examples of this in use now? If so would it be possible to get a sample of a short file being sent and also get a packet capture of the data on the TCP/IP side as that file is being sent. A write up of the implementation would be great if anyone has that, but that may be asking too much. Thanks in advance. Mike Gemeny

15 years, 3 months

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Vax 3100 disk recommendation and suggestions

by michael.99.thompson＠gmail.com

>From: joe heck <trash3 at splab.cas.neu.edu> >I have a 3100 model 80 with a failing disk drive. The two drives in it now are Seagate ST15150N (I believe). I have a couple of questions: >Are there NEW drives out there that will work with this VAX? >What do I need to do to make a drive format/work? Joe, I have quite a few small SCSI drives in my collection, but no ST15150N drive. What capacity do you need? -- Michael Thompson

15 years, 3 months

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JPL control room, 1979 - anyone want to do some systems-spotting?

by lproven＠gmail.com

The 6th episode of Carl Sagan's /Cosmos/ has some loving shots of the main computer room at JPL at the end of the 1970s. It's 38min into this episode: http://www.youtube.com/user/TheScienceFoundation#p/u/27/y7Qs3iXqgzs ... and lasts a good 2-3min. There's a bit more later, but then, it's Cosmos, the whole thing is extremely well-worth watching. I'd be very interested if anyone could ID the systems, drives, terminals and so on shown, though! -- Liam Proven ? Info & profile: http://www.google.com/profiles/lproven Email: lproven at cix.co.uk ? GMail/GoogleTalk/Orkut: lproven at gmail.com Tel: +44 20-8685-0498 ? Cell: +44 7939-087884 ? Fax: + 44 870-9151419 AIM/Yahoo/Skype: liamproven ? MSN: lproven at hotmail.com ? ICQ: 73187508

15 years, 3 months

2
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Surplus source for MAN8940 common-cathode 0.8" 7-segment displays?

by ethan.dicks＠gmail.com

Hi, All, An old project bubbled up to the surface this weekend - I'm looking for a handful of MAN8940 displays (or a modern equivalent like the Lumex LDS-C8024) to refurbish an old display that works but is dim. I'm flinching at the >$2 each price at Mouser (and Digikey only sells the item by the case-load of ~2000). Does anyone know of a surplus place that has larger sizes of 7-segment displays? For close to $50 in LEDs and postage, I'll just leave the dim ones in place. If I can find a source at surplus prices, I'm more likely to replace them. I found the exact part via one surplus page, but I just got my first "undeliverable: will re-try for two days" bounce, so I'm expecting that I won't be able to contact that seller in the end. These are for a personal project, not a work project, so I'm happy to buy from an individual - doesn't have to be a "legitimate" company. Anyone know of oddball places to get oddball LEDs? Thanks, -ethan

15 years, 3 months

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Speaking of Lisas...this guy has a garageful!

by dm561＠torfree.net

----- Original Message ----- > Date: Mon, 4 Apr 2011 11:17:31 -0400 (EDT) > From: Steven Hirsch <snhirsch at gmail.com> > Subject: Re: Speaking of Lisas...this guy has a garageful! <snip> > My reason for the comment about Black Holes. Never understood the point > of stacking units in the storage shed. > ----- Reply: It's easy to judge and complain about "hoarders", but there's another perspective: Considering today's high shipping costs it's pretty hard to find anyone willing to pay to ship anything substantial (never mind a little extra to make it worth while) unless it's rare and/or valuable, so you either scrap it or "stack it in the storage shed" in hopes of some day finding someone local or willing to pay the big bucks. I've had to scrap close to a dozen Cromemco boxes and dozens of terminals and old PC/XT/ATs and clones over the years; fortunately I found a local teacher who took a skid full of old data books or they would have gone to landfill as well. Personally I'd love to regain the space that this junk takes up... mike

15 years, 3 months

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Looking for AT case in Seattle area

by tiggerlasv＠aim.com

Alas, I got rid of the last AT-ish style case that I had, before I moved up to Seattle. Have you checked at the RE-PC store in Seattle as well? I tend to forget about that one, as Tukwila is much closer to me. Plus, it saddens me to see the PDP-11/23 system sitting there powered down, as a museum piece. *Sigh* \ It never hurts to check out Goodwill, either. I recall spying a desktop (several months ago) that was sporting an "AT" keyboard connector, at the store on the hill in Renton across from Little Peking. . . . so I know that they're out there. . . T

15 years, 3 months

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Advice on Lisa 2 restoration

by dm561＠torfree.net

----- Original Message ----- > Date: Sun, 03 Apr 2011 19:05:17 -0700 > From: "Chuck Guzis" <cclist at sydex.com> > Subject: Re: Advice on Lisa 2 restoration > <snip> > Use a nice big Soldapullt? Cleans the holes for me, particularly if > you hold the PCB in a board vise and use the Soldapullt on one side, > while apply heat (and a little solder) to the other side. Push the > button and the hole is clean as a whistle. > > Little Soldapullts are next to worthless. Get the big one (DS017 or > its variant versions). > > I do use solder wick, but mostly for soldering SMT ICs. > > --Chuck ----- Reply: A sharp round wooden toothpick often works well for me. mike

15 years, 3 months

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Speaking of Lisas...this guy has a garageful!

by tshoppa＠wmata.com

Original picture looks like a miniature version of my garage back in the early 90's. Walls lined with VT100's and variants stacked up high... less than fifty of them in all but still a lot for one guy :-) >> Is he a collector / restorer sort of person or a "black hole"? I've >> tripped over a number of folks with large quantities of classic gear who >> seem to playing the "..he who dies with the most units, wins" game. >> Drives me crazy when someone who doesn't touch the equipment, doesn't use >> it or display it (in fact, may not even know where it is), has 6-10 of The reasoning behind my garage of VT100's was mostly related to making working units from broken units taken in during hauls. I put no energy doing board-level fixes but swapped major subassemblies with wild abandon. Lots of Southern California hobbyists ended up with several of my fixed VT100's :-). I can see it, in some cases, evolving from "having some spares" to "having so many spares" to "not needing any spares because I fix everything at the board level" but I never got there! Tim.

15 years, 3 months

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Oil fires (was Re: old US Telephone hybrid ('Network' block) )

by mtapley＠swri.edu

At 8:54 -0500 4/3/11, ard wrote: >And whatever you do, dn't put water on it if it catches fire. I've seen >this done as a demonstration, and it was spectacular (I am sure there's >something similar on youtube). Tony has spoken many words of wisdom, but few truer. http://www.youtube.com/watch?v=p-F82_OFrds -- - Mark 210-379-4635 ----------------------------------------------------------------------- Large Asteroids headed toward planets inhabited by beings that don't have technology adequate to stop them: Think of it as Evolution in Fast-Forward.

15 years, 3 months

1
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Vax 3100 disk recommendation and suggestions

by trash3＠splab.cas.neu.edu

Hi all, I have a 3100 model 80 with a failing disk drive. The two drives in it now are Seagate ST15150N (I believe). I have a couple of questions: Are there NEW drives out there that will work with this VAX? What do I need to do to make a drive format/work? I installed the drives probably over ten years ago and I just don't remember if I had to format them special or on another box or what. I don't have the manuals any more, so I'm stuck. Thanks for any advice you folks have... Joe Heck

15 years, 3 months

3
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Moldy data tape help

by rborsuk＠colourfull.com

I just got a load of Wang equipment (thanks Jason) and one of the Data tapes has mold on it. Check it out at: https://picasaweb.google.com/lh/photo/qEkwl1uWDIjNywOZMQXlSA?feat=directlink Does anyone have any thoughts about cleaning this before trying to use it. Thanks Rob Robert Borsuk rborsuk at colourfull.com Colourfull Creations http://www.colourfull.com

15 years, 3 months

3
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Looking for AT case in Seattle area

by derschjo＠mail.msu.edu

Subject says it all -- I unwittingly gave away my last AT case a while back and now I have need to build an old 486 for a project. RE-PC in Tukwila/Seattle has let me down, all they seem to keep around are ATX cases these days. Anyone have one to get rid of, cheap? Something mid-tower-ish would be great, but I'm not too picky as long as it has a working power supply... Thanks! Josh

15 years, 3 months

1
1
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neat ibm mainframe video on youtube

by halarewich＠gmail.com

http://www.youtube.com/watch?v=Cwj6pfhWBps great video for the big iron guys out there

15 years, 3 months

1
0
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Ohio Scientific Challenger 4P software

by derschjo＠mail.msu.edu

This afternoon I picked up a complete OSI Challenger 4P (model C4PMF) with 5.25" disk driveand a stack of manuals. It's in decent shape and I've been going over it and cleaning it up (with a little wood polish for the sides :)). Power supplies seem to be working nominally so I've fired it up, and it appears to be working correctly. It came with half a dozen floppies, but they're in pretty sorry shape and only one of them actually boots (well, almost boots - it errors out after a little while into the boot process). I've of course cleaned the drive's heads beforehand :). The C4PMF does not have a cassette interface (alas) so I can't load cassette software on this thing. And no BASIC in ROM, so if I want to bootstrap this thing over a serial port I'll be entering in machine code to do it :). So I have two immediate questions: 1) Is there an archive anywhere of disk images for this machine? I've done a fair amount of searching and I haven't found much outside of a few OS images included with emulators. 2) Anyone have any experience getting software onto the machine from a "modern" PC? Can floppies for the C4P be written on a PC (using ImageDisk or the like)? Thanks for any advice. This looks like a really cool machine, and I can't wait to get it running. - Josh

15 years, 3 months

1
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ohio scientific haul

by mcsele＠niagaracollege.ca

First, note where the boards went then pull them out (carefully, those pins can be stubborn and can loosed from the backplane). Next check the power supplies. I have seen an old OSI supply put out 7V where it should have been 5V: that would be a disaster. The fact that someone put voltmeters in the case probably shows some paranoia in this respect! Next, try re-installing boards and if you get lucky, it might just display "D/C/W/M" or rather "H/D/M" on the screen when it boots. The 505 CPU has only one ROM (not BASIC in ROM like many OSI systems did) and so is strictly disk-based (hence the prompt H/D/M). If the video works, try to boot a disk. If it fails to show video, or the video looks completely scrambled with random characters, a likely culprit is memory: in many old OSI systems you see bad RAM that just seems to appear from nowhere. The 527 uses 2114's which are common at least. If you get video, but not much else, you can try using the machine-code monitor (M) to diagnose the memory ... bitsavers probably has a doc on the OS65V monitor which will help (they were all about the same on OSI machines). Professor Mark Csele, P.Eng. Niagara College, Canada 300 Woodlawn Rd., L-23 Welland, ON, L3C 7L3 (905) 735-2211 x.7629 E-Mail: mcsele at niagarac.on.ca URL: http://technology.niagarac.on.ca/people/mcsele Author of "Fundamentals of Light Sources and Lasers", Wiley, 2004

15 years, 3 months

1
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Vax 3100 disk recommendation and suggestions

by tshoppa＠wmata.com

Joe writes: > I have a 3100 model 80 with a failing disk drive. The two drives in it > now are Seagate ST15150N (I believe). I have a couple of questions: > Are there NEW drives out there that will work with this VAX? > What do I need to do to make a drive format/work? ST15150N are excellent drives and were a great choice for ten years ago when they started showing up widely in surplus. I have such a long and deep trust in them, that I might recommend that you just find a few more :-) Today if insisting on a new drive you'd probably get a 68 pin SCSI drive and a 68-to-50 adapter cable. Example 68 pin SCSI drives still being manufactured recently are Seagate Cheetahs 73 gig/ 147 gig. Similarly you could get an 80 pin SCA drive and an adapter to take you down to 50 pin. There's a lot of surplus SCSI drives out there newer than the ST15150N too. Example adapter source: http://www.pc-pitstop.com/scsi_adapters/int_scsi_adapters.asp > I installed the drives probably over ten years ago and I just don't > remember if I had to format them special or on another box or what. I > don't have the manuals any more, so I'm stuck. Nothing special. Just stick it in, INIT or BACKUP to fill it up. Older 3100's (like model 30) have some limitations on boot disks requiring some tricks to use drives bigger than 1 gbyte but the model 80 is clear sailing. Tim.

15 years, 3 months

1
0
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classiccmp server

by jwest＠classiccmp.org

With any luck, I will be taking down the classiccmp server sometime this weekend for hardware upgrades and a complete reformat/reload. This includes the new raid controller and all new hard drives. It may be tonight, or sometime tomorrow... or all heck may break loose in other areas of my life this weekend and it gets postponed. I just wanted to give a heads up that if you stop seeing list traffic (and the classiccmp-hosted websites) that it's most likely intentional. I'll try to keep everyone posted. Best, Jay

15 years, 3 months

2
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OT : old US Telephone hybrid ('Network' block)

by ard＠p850ug1.demon.co.uk

THis is off-topic, I know, but I suspect there are some people here interested in old telephones. I have a Western Electric 500 telehpne on the bench. The standard US rotary dial one. As you may know, all the small components and the anti-sidetone transformer ('induction coil') are in the metal box kown as the 'Network'. This is the normal type 425 unit Anyway, I've remvoed this from the rest of the 'phone by disconencting the wiring and drillign out the rivets (this was standard practice accordign to one of the official repair manuals I read). I can refit it using 6-2 UNC screws whcih are a perfect fit. The 425 network was not field rpeairiable, and I can see why. After bending up the tabs, I slid off the can to reveal the components in a particularlly evil potting compound. It's not hard, it's sticky, I can be scraped off (but I spent good quarter of an hour clenaing a screwdriver after this). It will soften with heat (in fact a hot air paint stripper gun wil lget it to drip off, but I was gettign the thing so hot that the plastic terminal board was softening too). No solvent I have tried will remove it. The BSP docuemtns simply call it an 'insulating medium' which is not much help :-). Has anyone ever repaired such a Network block and knows how to shift this stuff? -tony

15 years, 3 months

13
30
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Bitsavers broken again?

by tshoppa＠wmata.com

> it seems that there's a new issue with the bitsavers host. I regularly do > an rsync for our mirror, but since a few days the connections are refused: > > rsync: failed to connect to bitsavers.org: Connection refused (146) > rsync error: error in socket IO (code 10) at clientserver.c(122) > [Receiver=3.0.7] In AOL tradition, "Me Too" for my mirror ( http://bitsavers.trailing-edge.com/ ). My presumption is that rsyncd simply isn't running at the far end. BTW, I'm gonna set up public rsync for the pdp-10 and pdp-11 archives here in my copious free time :-). Tim.

15 years, 3 months

1
0
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Bitsavers broken again?

by cc＠informatik.uni-stuttgart.de

Hi, it seems that there's a new issue with the bitsavers host. I regularly do an rsync for our mirror, but since a few days the connections are refused: rsync: failed to connect to bitsavers.org: Connection refused (146) rsync error: error in socket IO (code 10) at clientserver.c(122) [Receiver=3.0.7] Christian

15 years, 3 months

1
0
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another Mondrian/computer intersection

by hilpert＠cs.ubc.ca

So what is it with computers and Mondrian? http://www.computerhistory.org/revolution/the-web/20/390 (A little joke for those who remember a very old thread.)

15 years, 3 months

2
1
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Smoke From PSU Socket

by tshoppa＠wmata.com

> Also I don't know why the socket shorted, if it *was* wet then perhaps I > could plug it in again, but I am very doubtful that this would be a good > idea. Should I just be thinking of replacing the socket? Many "IEC sockets" are more than just sockets, and incorporate EMI suppression components as well. The euphemism becomes "power entry module" instead of "socket". The EMI suppression components (especially capacitors) in them are specced for AC line voltage applications and UL rated such, but they still let out their magic smoke every so often :-). Even if it's just a socket, some debris can get in there during storage, you plug it in, the debris trips a fuse and vaporizes, and all you're left with is a charred socket. Tim.

15 years, 3 months

8
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ohio scientific haul

by starbase89＠gmail.com

Hello! Yesterday I brought home a pile of OSI equipment. I got a Challenger II (in the blue, rectangular case,) a Challenger 4P case with keyboard (seems to connect to the main box as a keyboard,) two 5.25" disk drives in the style of the 4P and two joysticks. Inside the challenger are the following boards: 505 Rev B CPU/IO/Floppy 527 24k RAM 540 Rev B Video 567 Votrax Speech Synthesizer w/ external module; The Challenger II seems to have a well modified power supply, including and an added circuit board with two transformers, as well as four volt meters, mounted in cardboard and taped to the inside of the case. My first question in what is likely to be a long series is: If I intend to try and get it running, what is my first step? I'm not entirely sure what I'm going to do with the system yet. Its the first time I've had something of this caliber. I have no idea what its worth Thanks Joe -- Joseph Giliberti Jackson, New Jersey Come Visit the InfoAge Science History Learning Center and Museum Get more information at http://www.infoage.org

15 years, 3 months

1
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Wanted: Sinclair MK-14, Micral R2E, Scelbi 8H, Datapoint 2200, Mark 8 Mini, Kenbak and/or PDP Straight 8

by nick.allen＠comcast.net

If you have any of these please email me, I am a serious collector and willing to make an offer worth your while. Nick

15 years, 3 months

4
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Available: Sinclair MK-14, Micral R2E, Scelbi 8H, Datapoint 2200, Mark 8 Mini, Kenbak and/or PDP Straight 8

by pontus＠Update.UU.SE

Hi I've got these machines and would like to see them go to a serious collector. Make me an offer I can't refuse. /AprilOne

15 years, 3 months

1
0
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HP 82321B BASIC LANGUAGE PROCESSOR (VIPER) for $625 ?

by glen.slick＠gmail.com

Things that make you go hmm? HP 82321B BASIC LANGUAGE PROCESSOR (VIPER) http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=390281098409 Sold for $625 Are these really that hard to find? I think I paid somewhere around $30 or so each for my Viper and Hyper-Viper boards on eBay a while back. Maybe someone had one in a production environment that failed and absolutely needed one to get back online? With that sale price maybe a few more will show up on eBay (maybe I should list mine...)

15 years, 3 months

2
1
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CHM's Revolution exhibit - the online version

by evan＠snarc.net

CHM's "Revolution: The first 2000 years" is now online at http://www.computerhistory.org/revolution/. I know several cctalk'ers served as history advisers and/or loaned artifacts. For my part, I advised on the mobile/portable exhibit. (They said our individual names will be added during version 2 in a few weeks or months from now.)

15 years, 3 months

1
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OSI C1P currently on ebay...

by jules.richardson99＠gmail.com

Bill Sudbrink wrote: > Ah! There I would disagree. The case is not in half bad shape. If you > have Superboard you would like to mount, it could be just the thing for > you. That said, I think around $100 US is about the top of its value. I had to google (I'm not at all familiar with OSI stuff), but it seems that the keyboard is integral to the Superboard, right? So you'd basically be paying for a bit of bent metal, wooden (?) sides and a PSU - and it's a bit of bent metal which needs sanding down and repainting, at that (and I've no idea if those decals come off easily!). Considering it's $22 in shipping... anything seems like a lot to me :-) cheers Jules

15 years, 3 months

2
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OSI C1P currently on ebay...

by jules.richardson99＠gmail.com

Bill Sudbrink wrote: > I would suggest that you look closely at the enlarged version > of the third photograph. The case does not appear to contain > a full "Superboard" OSI 600 board. I'm not sure what this thing > is, but it is not a normal C1P. In the fifth photo, I think you > can see the cable header for the video and cassette I/O hanging > loose inside the case. Oh come on, this is ebay... that just makes it extra-rare and worth twice the price ;-)

15 years, 3 months

7
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OSI C1P currently on ebay...

by legalize＠xmission.com

In article <005101cbefcd$82d6f210$8884d630$@sudbrink at verizon.net>, "Bill Sudbrink" <wh.sudbrink at verizon.net> writes: > like to mount, it could be just the thing for you. That said, I think > around $100 US is about the top of its value. I disagree, based on the ebay selling prices of previous OSI Challenger product. Remember, the "value" of something is always in the eye of the seller, not what you think its worth. Famous works of art are worth millions of dollars because someone is willing to pay millions of dollars for them at auction. Its not the consensus of the dealers or critics that sets the price. -- "The Direct3D Graphics Pipeline" -- DirectX 9 draft available for download <http://legalizeadulthood.wordpress.com/the-direct3d-graphics-pipeline/> Legalize Adulthood! <http://legalizeadulthood.wordpress.com>

15 years, 3 months

2
2
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OSI C1P currently on ebay...

by ian_primus＠yahoo.com

--- On Tue, 3/29/11, Bill Sudbrink <wh.sudbrink at verizon.net> wrote: > To anyone who might be considering > bidding on this lot: > > http://cgi.ebay.com/OSI-Ohio-Scientific-Challenger-1P-/160565653395?pt=LH_De > faultDomain_0&hash=item2562756f93 > > I would suggest that you look closely at the enlarged > version > of the third photograph. The case does not appear to > contain > a full "Superboard" OSI 600 board. I'm not sure what > this thing > is, but it is not a normal C1P. In the fifth photo, I > think you > can see the cable header for the video and cassette I/O > hanging > loose inside the case. Hehe. And in the second photo, you can spot a foam packing peanut hiding inside the case... I love the fact that he says all the keys "seem to work", but yet the machine is "untested". So, what, they go down when pressed and come back up? How does that imply "working?". I can just see a similar exchange: "So - this car works?" "Oh, yes, you put the key in and it turns great!" "But, does it start?" "Oh, I don't know, I didn't put gas in it" "Well, what's the engine look like? Did you look under the hood?" "Cars don't open, silly." -Ian

15 years, 3 months

1
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KansasFest 2011 registration now open

by pr＠kansasfest.org

Hi, Nathan -- > 1. Will there be day passes for those who won't or can't spend an entire week? Email kfest-help at kfest.org and something can likely be arranged. > 2. If #1 is true, will we be able to see daily schedules prior so we can pick which days are most interested to us? We do post our session schedule online, but usually not until sometime in July. There's a general schedule on the first page of the registration form: http://www.kansasfest.org/wp-content/uploads/kfest2011-register.pdf -Ken

15 years, 3 months

1
1
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PDP-8/E boards pack

by spedraja＠gmail.com

Hello. This pack of boards is more or less what I was searching for my PDP-8/E: http://cgi.ebay.co.uk/DEC-Digital-PDP-8E-Boards-Core-Parts-Scrap-Gold-/1106… ...but is impossible to contact the seller. Someone could help me with this, please ? Contact off-list. -- Saludos - Greetings - Freundliche Gr??e - Salutations Sergio http://www.linkedin.com/in/sergiopedraja http://www.quora.com/Sergio-Pedraja ----- No crea todo lo que ve, ni crea que esta vi?ndolo todo

15 years, 3 months

1
0
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Dead Powerbook 170

by teoz＠neo.rr.com

I got an Apple Powerbook 170 (68030) from ebay a week ago and today I got a power brick to test it out. The seller said it was dead when he tried to power it (with what power brick and voltage I don't know). I tried it with a 7.5V 2A Sony power brick with the correct end and got nothing (tried it with the main battery removed). Took the unit apart and checked the main fuse and it is ok. The only thing I can see damaged are two power mosfets on the bottom of the board that melted into the bottom plastics (solder on the parts is discolored and one of the legs to ground reads 148 Ohms resistance on both units). The parts are both IRFR9020 (labeled as Q41 and Q43 on the motherboard) https://picasaweb.google.com/107784270771159898725/Broken#55896559704001329… <== shows location http://pdf1.alldatasheet.com/datasheet-pdf/view/115896/IRF/IRFR9020.html <== data sheet Nothing else seems physically blown so I wonder if just swapping those parts out will fix it? Since I don't see the exact International Rectifier part number on ebay what else can I substitute for it? For example we have this part on ebay: http://cgi.ebay.com/Lot-3-P-Channel-Power-MOSFET-15A-60V-0-15Ohm-SMT-SMD-/1… but I don't know how important the Rds Ohm factor is. I have read that Apple original power brick had issues that would blow the surface mount fuse, but no idea what might have caused these chips to overheat so much (over voltage??). Any old Mac laptop people on this list know? Thanks TZ

15 years, 3 months

3
3
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IBM 5150 in S100?

by dgriffi＠cs.csubak.edu

I just came across an 8086 S100 CPU board from Seattle Computer Products and I started thinking... How much trouble would it be to use this board to come up with an IBM 5150 work-alike? What sort of custom boards would need to be made? -- David Griffith dgriffi at cs.csubak.edu A: Because it fouls the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting. Q: What is the most annoying thing in e-mail?

15 years, 3 months

7
11
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DEC RL02

by robin＠hx-20.com

Hello all, I know someone who wants to recover data from one of these 10MB disk packs. They have no drive, no RLV12 controller and (unsurprisingly) no PDP-11. I haven?t seen the disk pack in question so I have absolutely no idea of the condition although I am led to believe it has been looked after, stored properly and doesn?t have a crash...! Of course the pack owner has no idea of the data they?re after (whether it be ASCII, EBCDIC, binary etc..) so that?s another unknown quantity! Is there anyone here who is able to assist with this? Maybe initially to produce a binary image of the disk for further exploration? If yes, (how much) would you charge for this service? Many thanks Robin

15 years, 3 months

1
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KansasFest 2011 registration now open

by pr＠kansasfest.org

KANSAS CITY, MO -- March 30, 2011 -- KansasFest, the 22nd annual convention dedicated to the Apple II computer, is now open for registration. Users, programmers, hobbyists, and retrocomputing enthusiasts are invited to Rockhurst University in Kansas City, Missouri, from Tuesday, July 19, 2011, through Sunday, July 24, for six days and five nights of sessions, demos, announcements, contests, and camaraderie. The week kicks off with keynote speaker Bob Bishop, co-founder of Apple's R&D lab alongside Steve Wozniak and creator of many popular Apple II programs and articles. Several sessions and workshops are scheduled throughout the rest of the week, including but not limited to: * Ivan Drucker's tutorial for putting your Apple II on a LAN * Build your own Apple II MP3 expansion card workshop by Vince Briel * A look at the Apple III's technical aspects and modern accessories, by Mike Maginnis * A live-action text adventure, hosted by Ken Gagne * A behind-the-scenes look at the Open Apple podcast * The latest on Apple's iOS mobile devices by Rob Walch of the Today in iPhone podcast * A vendor fair that includes an exhibit hall for attendees to show off and play with new or unusual hardware and software * HackFest, an annual programming challenge open to coders of all skill levels What the schedule can't predict is the variety of surprises that are a hallmark of KansasFest. Recent years have seen the debut of a new, boxed Apple II game; the reclassification of Resource Central's catalog; a "lunch and learn" session on Apple IIc disassembly; and many other announcements and demonstrations. Attendees are encouraged to share their knowledge by presenting their own hardware and software sessions, especially of the Apple II but also including Macintosh, Windows, Linux, iOS, and others. Register before June 1 to guarantee a price of $365 for a double room or $435 for a single, which includes admission to all sessions as well as most meals. Official KansasFest shirts and Vince Briel's MP3 workshop are extra and optional and must be ordered by May 31; registration for staying on-site closes July 10. Veterans of the event are invited to bring a first-time attendee; if each indicates the other's name on the registration form, both will receive a $25 referral rebate at the event. To register, please visit the official Web site at http://www.kansasfest.org/ KansasFest sponsor 16 Sector invites any and all Apple II users, fans, and friends to attend the world's only annual Apple II conference. For photos, schedules, presentations from past year's events, and inquiries, please visit the event's Web site. CONTACT: Email: http://www.kansasfest.org/contact/ Register: http://www.kansasfest.org/register/ Twitter: http://twitter.com/kansasfest Facebook: http://www.facebook.com/event.php?eid=192182347486252

15 years, 3 months

2
1
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