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Very nice IBM 2040 magtape drive (classic upright 9-track) on eBay

by wmaddox＠pacbell.net

Item # 130282737254 19 hours to go, with one bid at $200. --Bill

17 years, 7 months

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Thrift store score: HP LJ4L

by ajp166＠bellatlantic.net

> >Subject: Thrift store score: HP LJ4L > From: Ethan Dicks <ethan.dicks at gmail.com> > Date: Sun, 25 Jan 2009 11:07:15 -0500 > To: classiccmp at classiccmp.org > >After years of looking at an HP LJ4L I got at the Uni surplus that >someone had removed the fuser from, I found a nearly-unused 4L at the >nearby thrift store yesterday. It printed the test page without a >burp, but was on the shelf without a price. I found someone to get it >priced and walked out a happy customer $6 later. > >The only thing it's missing is a right-angle IEC power cord to fit >behind the access door, but it works well enough with a straight-in >cable. > >-ethan Good hit on that one. Those are reliable and #6 is dirt cheap as they are still useable. Also it will work with a lot of the non-pC systems that had centronics or similar inerfaces with minor connector-wire matching. Allison

17 years, 7 months

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Who has : HP 6942a Multi programmers manuals

by hp-fix＠xs4all.nl

Hi, I aquired a HP 6942A Multi programmer unit some time ago and like to play with it, but I don't have a manual. Except a partial service manual with can be downloaded and a app-note form the HP- museum. Question does some one has the manuals for this 'beast' paper or pdf ? -Rik

17 years, 7 months

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DZ11 distribution panel?

by tiggerlasv＠aim.com

A quick check of the DZV11 and DHV11 user guides, as well as physical inspection of the same panels here would indicate that your panel is NOT meant for either of those boards. Checking both the DZ11 maintenance manual, and the DZ11 technical manual, I see references to the drawing that you mentioned. Further, searching for "54-11928-00" on yahoo returns at least one website that identifies it as a DZ11 distirbution panel. http://www.kuno.de/kunden/kch/modul_54.htm (Search for 54-11928) There is also a picture of the H317 panel in the maintenance manual, but nothing definitive. T

17 years, 7 months

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AFIPS Press

by aek＠bitsavers.org

> First, the questions: does anybody know what happened to AFIPS Press? AFIPS was an association of computer associations, including IEEE and ACM. ACM is asserting copyright on the JCC volumes. I just finished scanning CHM's collection of the proceedings for the ACM digital libary, they are in the process of putting them on line. I would check with ACM for permisssion to post, since CHM received permission to post the entire collection on their web site in exchange for scanning them.

17 years, 7 months

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Who has : HP 6942a Multi programmers manuals

by rikbos＠xs4all.nl

Hi, I aquired a HP 6942A Multi programmer unit some time ago and like to play with it, but I don't have a manual. Except a partial service manual with can be downloaded and a app-note form the HP- museum. Question does some one has the manuals for this 'beast' paper or pdf ? -Rik

17 years, 7 months

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Burning CDR's on an ATARI ST

by michaelgreen42＠comcast.net

I've got some Atari 520's laying around and was wondering what it would take to burn cdr's with them. I've seen ACSI to SCSI adapters (I'm assuming this is necessary). Assuming I hook up a SCSI CDRW to this what software would I need to burn disks. Is there an easier way perhaps using some kind of ide adapter or a straight SCSI host adapter. Thanks.

17 years, 7 months

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New Honeywell H316 video on youtube

by hachti＠hachti.de

Hi folks, last night I took some 2006 dv footage and prepared it for youtube. Perhaps some people here like to watch that blinkenlights stuff. I show compiling and running a program on the machine. Not too detailed, but very nice moving images. http://www.youtube.com/watch?v=hxVbRz6udmI Comments strongly appreciated! :-) Planning to do a more technical video another time. Best wishes, Philipp -- http://www.hachti.de

17 years, 7 months

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DZ11 distribution panel?

by iamvirtual＠gmail.com

Hi, I am trying to confirm whether a distribution panel is meant for a DZ11. On the metal frame there is a tag with a part number of 70-16469. The circuit board has a part number of 5411928 5011927C. The maintenance model references the H317E distribution panel and suggests looking at drawing D-CS-5411928-0-1 printset for jumper locations. Does anyone have the printset for the DZ11? Thanks. --barrym

17 years, 7 months

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HP IIISi: "50 SERVICE"

by mouse＠Rodents.Montreal.QC.CA

I was printing on my IIISi tonight and, between jobs, it switched from working normally to displaying "50 SERVICE" (with the "50" flashing) and not accepting print jobs. Power cycling doesn't help. I've done a little poking around, but haven't managed to find a service manual for the silly thing. Bitsavers has only one file under hp/printers/, and that one doesn't cover the IIISi. Google finds another file which covers a few III printers, but not the IIISi. Anyone have the manual, or at least have some idea what "50 SERVICE" means I need to do? (What is it with this week and hardware? I'm beginning to feel as though any hardware I try to use this week breaks.) /~\ The ASCII der Mouse \ / Ribbon Campaign X Against HTML mouse at rodents.montreal.qc.ca / \ Email! 7D C8 61 52 5D E7 2D 39 4E F1 31 3E E8 B3 27 4B

17 years, 7 months

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someone selling bitsavers cd's on ebay?

by shoppa＠trailing-edge.com

cctalk-request at classiccmp.org wrote: > Subject: RE: someone selling bitsavers cd's on ebay? > On the one hand you can argue: they are just offering > a service for people who can't download large > volumes of > documents. On the other hand, all of us are skating > on some > thin ice by scanning copyrighted material in the hopes > that > nobody really cares. It seems like a bad precedent > for > someone to be selling them for profit. > Subject: RE: someone selling bitsavers cd's on ebay? The way I see it, the worst possible example of what might happened has already happened: someone bought, via an E-bay auction, the rights to all Heathkit manuals and then threatened legal action against every single archive of scanned Heath material on the web, causing them all to shut down. I'm not saying that anything illegal happened, just that the end result is a damned shame. I have a lot of Heath stuff, and while I happened to have the original 40 or 50 year old manuals with much of it, most of the original manuals are in pretty sad physical shape today. I would use the scans on the web in preference to the physical manual because I was afraid more of the pages would fall out or even worse, the fold-out schematics would disintegrate more. Tim.

17 years, 7 months

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AFIPS Press

by frustum＠pacbell.net

First, the questions: does anybody know what happened to AFIPS Press? Next, the background: I bought a used AFIPS 1979 Conference Proceedings (Vol 48) of the National Computer Conference. I bought it for a single article. I'd like to scan and post that article online. Although I've scanned other material and put it online, I know ACM and IEEE are still very protective of even 40 year old publications, as they actively sell reprints online (some of which I've bought). This is a meaningful revenue stream to them. This is from the front of the book: (c) 1979 by AFIPS Press. Copying is permitted without payment of royalty provided that (1) each reproduction is done without alteration and (2) reference to the AFIPS Proceedings and notice of copyright are included on the first page. The title and abstract may be used without further permission in computer-based and other information-service systems. Permission to republish other excerpts should be obtained from AFIPS Press. It seems like putting it on a webpage is more akin to republishing it than it is copying it. I'd be more than happy to add the necessary credits to the scanned document, but that might not cut it. My first thought was to contact them and ask permission to publish this one article. Despite an hour of googling, I can't find what happened to them. Do they still exist (I haven't seen anything with a recent date published by them)? Did they get folded into ACM or IEEE? They used to be located at 210 Summit Avenue, Montvale, NJ 07645. If I enter that address into google maps, it reports about 20 businesses, none of them AFIPS Press. The Montvale New Jersey Business Directory doesn't list AFIPS Press either.

17 years, 7 months

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AFIPS Press

by cclist＠sydex.com

2009/1/25 Jim Battle <frustum at pacbell.net>: > First, the questions: does anybody know what happened to AFIPS Press? AFIPS ceased operation in 1990. IEEE CS took over some of the archival stuff with ACM, but then IFIP picked up the slack. http://www.ifip.or.at/ IFIP, on their contact list, show both IEEE and ACM representatives for the USA. I'd start by dropping them both an email. If neither of them knows, no one does. Various universities may still have the AFIPS collection (e.g. FJCC, etc.) I have many fond memories of NCC. Cheers, Chuck

17 years, 7 months

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someone selling bitsavers cd's on ebay?

by shoppa＠trailing-edge.com

> On the one hand you can argue: they are just offering > a > service for people who can't download large > volumes of > documents. On the other hand, all of us are skating > on some > thin ice by scanning copyrighted material in the hopes > that > nobody really cares. It seems like a bad precedent > for > someone to be selling them for profit. > Information is more dangerous than cannon to a society ruled by lies. --James > M Dakin > > > ------------------------------ > > Message: 4 > Date: Sat, 24 Jan 2009 19:36:06 +0100 > From: "Rik Bos" <hp-fix at xs4all.nl> > Subject: RE: someone selling bitsavers cd's on ebay? > To: "'General Discussion: On-Topic and Off-Topic Posts'" > <cctalk at classiccmp.org> > Message-ID: <8981EED805C74877B576A25B84552268 at xp1800> > Content-Type: text/plain; charset="us-ascii" > > 'She' got three times feedback as seller two were negative ! > She seems to be a good buyer .. > > Well I'm not spending my money on 'her' items with bitsavers and other > sources around ;-) > > -Rik > > > -----Oorspronkelijk bericht----- > > Van: cctalk-bounces at classiccmp.org > > [mailto:cctalk-bounces at classiccmp.org] Namens Vernon Wright > > Verzonden: zaterdag 24 januari 2009 19:18 > > Aan: General Discussion: On-Topic and Off-Topic Posts > > Onderwerp: RE: someone selling bitsavers cd's on ebay? > > > > Thing is, the negative feedback is back in 2004! Since then > > it seems positive. And I don't see what "she" was selling back in '04. > > > > If it's rip-offs from bitsavers, well then I have a problem. > > OTOH, if "she" has been scanning her own collection, then 1) > > why the hell isn't she a member here? ...and... 2) it's her > > problem dealing with copyright owners. > > > > Vern > > > > --- On Sat, 1/24/09, Rik Bos <hp-fix at xs4all.nl> wrote: > > > > > From: Rik Bos <hp-fix at xs4all.nl> > > > Subject: RE: someone selling bitsavers cd's on ebay? > > > To: "'General Discussion: On-Topic and Off-Topic Posts'" > > > <cctalk at classiccmp.org> > > > Date: Saturday, January 24, 2009, 9:53 AM A copy from the feedback > > > she's getting... > > > *BEWARE* Sells photo-copies of vintage items & claims they are very > > > rare !!! > > > the answer : > > > If you cannot find a copy of something then it is rare, ask > > > b4 buying moron > > > !!!! > > > > > > Says something about the seller..... > > > > > > I think it's a opportunistic persoon with a short of cash.... > > > Couldn't be a list member. > > > > > > -Rik > > > > > > > -----Oorspronkelijk bericht----- > > > > Van: cctalk-bounces at classiccmp.org > > > > [mailto:cctalk-bounces at classiccmp.org] Namens Jim > > > Battle > > > > Verzonden: zaterdag 24 januari 2009 18:21 > > > > Aan: General Discussion: On-Topic and Off-Topic Posts > > > > Onderwerp: someone selling bitsavers cd's on ebay? > > > > > > > > I just noticed this: > > > > > > > > http://search.ebay.com/_W0QQsassZmariamarkham > > > > > > > > Considering some of the odd groupings (eg DIGITAL > > > EQUIPMENT > > > > CORPORATION AND OSBORNE DOCUMENTS), it seems like this > > > person > > > > is perhaps not putting a lot of effort into this or > > > isn't > > > > knowledgeable. And if they aren't either of > > > those, what are > > > > the odds they'd bother collecting and scanning > > > these materials? > > > > > > > > On the one hand you can argue: they are just offering > > > a > > > > service for people who can't download large > > > volumes of > > > > documents. On the other hand, all of us are skating > > > on some > > > > thin ice by scanning copyrighted material in the hopes > > > that > > > > nobody really cares. It seems like a bad precedent > > > for > > > > someone to be selling them for profit. > > > > > > > > > > ------------------------------ > > Message: 5 > Date: Sat, 24 Jan 2009 10:36:19 -0800 > From: "Chuck Guzis" <cclist at sydex.com> > Subject: RE: someone selling bitsavers cd's on ebay? > To: "General Discussion: On-Topic and Off-Topic Posts" > <cctalk at classiccmp.org> > Message-ID: <497AEF23.25069.4D0B58F0 at cclist.sydex.com> > Content-Type: text/plain; charset=US-ASCII > > On 24 Jan 2009 at 10:17, Vernon Wright wrote: > > > Thing is, the negative feedback is back in 2004! Since then it seems > > positive. And I don't see what "she" was selling back in '04. > > > > If it's rip-offs from bitsavers, well then I have a problem. OTOH, if > > "she" has been scanning her own collection, then 1) why the hell isn't > > she a member here? ...and... 2) it's her problem dealing with > > copyright owners. > > I noticed the same thing. Probably just a tempest in a teapot--it's > not clear that she's sold *anything* in the last 4 years. I suspect > those in need of antique computer doucmentation know how to use The > Google. > > Cheers, > Chuck > > > > ------------------------------ > > Message: 6 > Date: Sat, 24 Jan 2009 13:49:34 -0500 > From: Dave McGuire <mcguire at neurotica.com> > Subject: Re: HP IIISi: "50 SERVICE" > To: "General Discussion: On-Topic Posts Only" <cctech at classiccmp.org>, > der Mouse <mouse at Rodents-Montreal.ORG> > Cc: "General Discussion: On-Topic and Off-Topic Posts" > <cctalk at classiccmp.org> > Message-ID: <F7CA1676-7707-410E-BED8-F8F5B27E53FF at neurotica.com> > Content-Type: text/plain; charset=US-ASCII; delsp=yes; format=flowed > > On Jan 24, 2009, at 4:45 AM, der Mouse wrote: > >> Back in June (2008), I wrote about my HP IIISi laser printer > >> complaining "50 SERVICE". [...] > > > > Today I picked up a new fuser and replaced it, and now it works. > > > > However, there's a vertical line of what I can perhaps best > > describe as > > fog on every page. Last time I had something of the sort, replacing > > the toner cartridge (which includes a roller of some sort) fixed > > it. I > > slid the door over the roller open and the fog is visible on the > > roller > > too. Perhaps interestingly, this fog was not present on the first few > > pages printed (which were test pages); it showed up while I was > > printing "real data". > > So, the fog on the drum is a scratch, or are you saying that > there's a toner image of the fog on the drum? Use a piece of tissue > and (very!) carefully wipe at it to see if it comes off. > > If it doesn't, then the drum is screwed, which (on most printers) > means the cartridge is screwed. If it does, then there may be a > piece of crap on one of the corona wires. There's a slot that runs > the width of the toner cartridge that is covered on the inside by a > flexible piece of black plastic film. Use the corona wire cleaner > (the green thing with the felt tip) and stick it in there in the > obvious way, and run it back and forth a few times. > > > Also, the thing is giving me a lot of paper jams with the page > > stuck in > > the paper path after the fuser - sometimes they register as internal > > jams, sometimes as output jams. It's not consistent, but frequent > > enough to be annoying. Any ideas what could be causing that? > > There could be something sticky on the fuser roller. On these > printers, there is (or should be) a white felt pad stuck to a plastic > frame that sits atop the fuser roller and wipes it as it rotates. > Most people never bothered with that pad, to their detriment...you're > supposed to change it when you change the toner cartridge, and new > toner cartridges (usually) come with one. That pad is saturated with > fuser oil; it cleans and lubricates the fuser. > > -Dave > > -- > Dave McGuire > Port Charlotte, FL > > > > > ------------------------------ > > Message: 7 > Date: Sat, 24 Jan 2009 10:55:05 -0800 > From: "Chuck Guzis" <cclist at sydex.com> > Subject: Re: Help identifying a big ol' drive platter > To: "General Discussion: On-Topic and Off-Topic Posts" > <cctalk at classiccmp.org> > Message-ID: <497AF389.7236.4D1C7FBF at cclist.sydex.com> > Content-Type: text/plain; charset=US-ASCII > > On 24 Jan 2009 at 13:13, Roy J. Tellason wrote: > > > Wow, how sixties...! :-) > > > > I especially like that pic of the unit with the cover off on page 5. > > Bitsavers has the manual for the 6603 controller: > > http://www.bitsavers.org/pdf/cdc/6x00/60334000_6603DiskControl.pdf > > (about 500K) > > I was wrong on the speed (mental bit rot)--it's 900 RPM, not 600. > Still darned slow in comparison to 70's technology. > > Every once in awhile these Bryants would spring a leak in the > hydraulics. I once witnessed an operator hit the pool of fluid on > the floor (pydraul?) at a dead run. It was pretty funny. > > Cheers. > Chuck > > > > ------------------------------ > > Message: 8 > Date: Sat, 24 Jan 2009 10:58:50 -0800 > From: Chris Halarewich <halarewich at gmail.com> > Subject: Re: HP IIISi: "50 SERVICE" > To: "General Discussion: On-Topic and Off-Topic Posts" > <cctalk at classiccmp.org> > Message-ID: > <6d6501090901241058rb615e2en38c639532072c18f at mail.gmail.com> > Content-Type: text/plain; charset=ISO-8859-1 > > when i go to that page it says domain for sale > > On 1/24/09, Alexandre Souza <alexandre-listas at e-secure.com.br> wrote: > > > > Today I finally collected the round tuits to check it out - and yes, > >>> the fuser "lamp" has failed open-circuit. Fortunately, a month or two > >>> back I spoke with an printer repair tech who came to service a printer > >>> at work; he gave me contact info for the place he gets replacements for > >>> such things, so I'm set in that respect. > >>> > >> Just publish if you find a good address. I saw this message on my > >> printer (4mx?) too, so I'm proably next ;-) > >> > > > > www.repair-printer.com comes to mind. excellent service! > > > > > > > ------------------------------ > > Message: 9 > Date: Sat, 24 Jan 2009 11:14:30 -0800 > From: dwight elvey <dkelvey at hotmail.com> > Subject: RE: HP IIISi: "50 SERVICE" > To: "General Discussion: On-Topic and Off-Topic Posts" > <cctalk at classiccmp.org> > Message-ID: <COL107-W24ACBC7B88C8DE34CAAE9DA3CC0 at phx.gbl> > Content-Type: text/plain; charset="iso-8859-1" > > > > > ---------------------------------------- > > From: mcguire at neurotica.com > ---snip--- > > > > If it doesn't, then the drum is screwed, which (on most printers) > > means the cartridge is screwed. If it does, then there may be a > > piece of crap on one of the corona wires. There's a slot that runs > > the width of the toner cartridge that is covered on the inside by a > > flexible piece of black plastic film. Use the corona wire cleaner > > (the green thing with the felt tip) and stick it in there in the > > obvious way, and run it back and forth a few times. > > > > Hi > There isn't the normal corona wire in the III si. Like I > mentioned in my mail, it is replaced by the PCR in that > printer. > Dwight > > _________________________________________________________________ > Hotmail? goes where you go. On a PC, on the Web, on your phone. > http://www.windowslive-hotmail.com/learnmore/versatility.aspx#mobile?ocid=T… > > > ------------------------------ > > Message: 10 > Date: Sat, 24 Jan 2009 12:00:18 -0800 > From: "Scanning" <steven.alan.canning at verizon.net> > Subject: Re: someone selling bitsavers cd's on ebay? > To: "General Discussion: On-Topic and Off-Topic Posts" > <cctalk at classiccmp.org> > Message-ID: <000e01c97e5e$61aa34e0$0201a8c0 at hal9000> > Content-Type: text/plain; charset=iso-8859-1 > > Jim, > > As a seller, her feedback is only THREE and two of those are NEGATIVE. That > should be all we need to know. > > Best regards, Steven > > > ----- Original Message ----- > From: "Jim Battle" <frustum at pacbell.net> > To: "General Discussion: On-Topic and Off-Topic Posts" > <cctalk at classiccmp.org> > Sent: Saturday, January 24, 2009 9:21 AM > Subject: someone selling bitsavers cd's on ebay? > > > > I just noticed this: > > > > http://search.ebay.com/_W0QQsassZmariamarkham > > > > Considering some of the odd groupings (eg DIGITAL EQUIPMENT CORPORATION > > AND OSBORNE DOCUMENTS), it seems like this person is perhaps not putting > > a lot of effort into this or isn't knowledgeable. And if they aren't > > either of those, what are the odds they'd bother collecting and scanning > > these materials? > > > > On the one hand you can argue: they are just offering a service for > > people who can't download large volumes of documents. On the other > > hand, all of us are skating on some thin ice by scanning copyrighted > > material in the hopes that nobody really cares. It seems like a bad > > precedent for someone to be selling them for profit. > > > > ------------------------------ > > Message: 11 > Date: Sat, 24 Jan 2009 18:45:43 +0000 (GMT) > From: ard at p850ug1.demon.co.uk (Tony Duell) > Subject: Re: Wall warts; was: hams on classiccmp > To: cctalk at classiccmp.org > Message-ID: <m1LQnVr-000IxyC at p850ug1> > Content-Type: text/plain > > [Alcohol damaging plastics] > > > HPDL-1414, I've used a few in projects here. They're damn nice > > displays. The datasheet mentions nothing about alcohol, though. > > Hmmm.. I was pretty sure it was those displays where the data sheet > specifically mentioned not cleaning them with alcohol, but I could well > be mistaken. > > I was using these over 25 years ago, and there are 2 other posibilities. > Firstly, they may have changed the plastic over the years so the more > recent ones are not attacked by alcohol (that might also apply to dot > matrix versions, etc). The other is that I got my displays from RS > components in the UK, and they produced their own data sheet for the ones > they sold (I think just the 1414 and 2416), and it may have contained the > warning about alcohol. I still have that data sheet _somehwere_ , if I > come across it I'll check. > > -tony > > > ------------------------------ > > Message: 12 > Date: Sat, 24 Jan 2009 13:54:59 -0800 > From: "Brian Knittel" <brian at quarterbyte.com> > Subject: Re: someone selling bitsavers cd's on ebay? > To: cctalk at classiccmp.org > Message-ID: <497B1DB3.9419.130D58F3 at brian.quarterbyte.com> > Content-Type: text/plain; charset=US-ASCII > > My favorite is the one covering the "APPOLO GUIDANCE COMPUTER" > and "An emulator that simulates a hole host of different computers". > > > > > ------------------------------ > > Message: 13 > Date: Sat, 24 Jan 2009 05:59:48 -0500 (EST) > From: der Mouse <mouse at Rodents-Montreal.ORG> > Subject: Re: HP IIISi: "50 SERVICE" > To: "General Discussion: On-Topic and Off-Topic Posts" > <cctalk at classiccmp.org> > Message-ID: <200901241102.GAA18164 at Sparkle.Rodents-Montreal.ORG> > Content-Type: text/plain; charset="iso-8859-1" > > >> Fortunately, a month or two back I spoke with an printer repair tech > >> who came to service a printer at work; he gave me contact info for > >> the place he gets replacements for such things, so I'm set in that > >> respect. > > Just publish if you find a good address. > > 5000 d'Iberville. (I don't expect this to be much use to you, since > you're probably not in Montreal, but you asked. I conjecture you were > expecting a webpage or some such...but I don't buy "online". At all.) > > /~\ 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 > > > ------------------------------ > > Message: 14 > Date: Sat, 24 Jan 2009 16:00:20 -0500 (EST) > From: der Mouse <mouse at Rodents-Montreal.ORG> > Subject: Re: HP IIISi: "50 SERVICE" > To: cctalk at classiccmp.org > Message-ID: <200901242118.QAA20882 at Sparkle.Rodents-Montreal.ORG> > Content-Type: text/plain; charset="iso-8859-1" > > Thank you all for your great help! > > [Dave McGuire, quoting me] > >> However, there's a vertical line of what I can perhaps best describe > >> as fog on every page. [...] Perhaps interestingly, this fog was > >> not present on the first few pages printed > > So, the fog on the drum is a scratch, > > No; its physical extent is not as well-defined as a scratch is, and it > is (statistically) uniform under vertical translation, not repeating > with a well-defined period the way a scratch does. > > > or are you saying that there's a toner image of the fog on the drum? > > Yes. When I open the door over the roller, there are bands of fog > wrapped around the drum, in places that correspond to the fog on the > printouts. > > > Use a piece of tissue and (very!) carefully wipe at it to see if it > > comes off. > > > If it doesn't, then the drum is screwed, > > It wipes off readily, and the stuff that wipes off looks like, well, > toner powder. But when I then put the cartridge back in and print a > test page, there is no recurring gap in the fog; apparently the > cleaned-off space didn't stay clean long enough to show on the page. > > [dwight elvey] > > There is also a [scraper] that can fail. If it gets junk in it, it > > will let toner get by and contaminate the PCR. It is a self > > intensifying process. > > That matches the symptoms. I'll try opening the toner cartridge and > cleaning off the PCR and the wiper blade - I could wreck it, I suppose, > but if my alternative is to get a new cartridge anyway... :) > > /~\ 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 > > > ------------------------------ > > Message: 15 > Date: Sun, 25 Jan 2009 11:07:15 -0500 > From: Ethan Dicks <ethan.dicks at gmail.com> > Subject: Thrift store score: HP LJ4L > To: classiccmp at classiccmp.org > Message-ID: > <f4eb766f0901250807gd38027ckd7ec741a60c76f60 at mail.gmail.com> > Content-Type: text/plain; charset=ISO-8859-1 > > After years of looking at an HP LJ4L I got at the Uni surplus that > someone had removed the fuser from, I found a nearly-unused 4L at the > nearby thrift store yesterday. It printed the test page without a > burp, but was on the shelf without a price. I found someone to get it > priced and walked out a happy customer $6 later. > > The only thing it's missing is a right-angle IEC power cord to fit > behind the access door, but it works well enough with a straight-in > cable. > > -ethan > > > ------------------------------ > > Message: 16 > Date: Sun, 25 Jan 2009 11:15:10 -0500 (EST) > From: Mike Loewen <mloewen at cpumagic.scol.pa.us> > Subject: Re: Thrift store score: HP LJ4L > To: "General Discussion: On-Topic and Off-Topic Posts" > <cctalk at classiccmp.org> > Message-ID: <Pine.LNX.4.64.0901251112330.31919 at cpumagic.scol.pa.us> > Content-Type: TEXT/PLAIN; charset=US-ASCII; format=flowed > > On Sun, 25 Jan 2009, Ethan Dicks wrote: > > > After years of looking at an HP LJ4L I got at the Uni surplus that > > someone had removed the fuser from, I found a nearly-unused 4L at the > > nearby thrift store yesterday. It printed the test page without a > > burp, but was on the shelf without a price. I found someone to get it > > priced and walked out a happy customer $6 later. > > I had pretty much given up on finding interesting vintage electronics > at Goodwill, but I also made a good score last summer: a Data General > LDM-800 line matrix printer for $4.95 (half-price day). There's not a > thing wrong with it, after a couple of alignment procedures. They > actually had two of them, but I only had room for one. :-) > > > > Mike Loewen mloewen at cpumagic.scol.pa.us > Old Technology http://sturgeon.css.psu.edu/~mloewen/Oldtech/ > > > ------------------------------ > > Message: 17 > Date: Sun, 25 Jan 2009 11:26:19 -0500 > From: Dave McGuire <mcguire at neurotica.com> > Subject: Re: HP IIISi: "50 SERVICE" > To: "General Discussion: On-Topic Posts Only" <cctech at classiccmp.org> > Message-ID: <D0FB2B07-5DC4-42EE-B27B-FD1EA93987A8 at neurotica.com> > Content-Type: text/plain; charset=US-ASCII; format=flowed > > On Jan 24, 2009, at 2:14 PM, dwight elvey wrote: > >> If it doesn't, then the drum is screwed, which (on most printers) > >> means the cartridge is screwed. If it does, then there may be a > >> piece of crap on one of the corona wires. There's a slot that runs > >> the width of the toner cartridge that is covered on the inside by a > >> flexible piece of black plastic film. Use the corona wire cleaner > >> (the green thing with the felt tip) and stick it in there in the > >> obvious way, and run it back and forth a few times. > >> > > Hi > > There isn't the normal corona wire in the III si. Like I > > mentioned in my mail, it is replaced by the PCR in that > > printer. > > Ahhhh, I must've missed the "Si" part somehow. > > -Dave > > -- > Dave McGuire > Port Charlotte, FL > > > > > ------------------------------ > > Message: 18 > Date: Sun, 25 Jan 2009 09:43:14 -0800 (PST) > From: Vernon Wright <vern4wright at yahoo.com> > Subject: Re: Thrift store score: HP LJ4L > To: "General Discussion: On-Topic and Off-Topic Posts" > <cctalk at classiccmp.org> > Message-ID: <431838.91257.qm at web65509.mail.ac4.yahoo.com> > Content-Type: text/plain; charset=us-ascii > > You are lucky; the thrift stores I inhabit here in San Diego won't sell if there isn't a price tag. They hold it to the next day and price it overnight...which is a BIG bore if I really want it and have to come back the next day - which won't be seniors 50% off day, of course :) > > The coup I recall is the TI microLaser Win/4 I picked up at a thrift store closing for a dollar. It had been at $7, and $15 before that; I figured I could take a chance at a cuppa coffee price. It was incompatible with Linux, and Windoze except for 95 AND XP! Funny that long list of releases no one ever wrote a driver for, and then to do it for XP. Anyway, it had a good toner and innards and has served perfectly well for about three years. > > Vern Wright > > --- On Sun, 1/25/09, Ethan Dicks <ethan.dicks at gmail.com> wrote: > > > From: Ethan Dicks <ethan.dicks at gmail.com> > > Subject: Thrift store score: HP LJ4L > > To: classiccmp at classiccmp.org > > Date: Sunday, January 25, 2009, 8:07 AM > > After years of looking at an HP LJ4L I got at the Uni > > surplus that > > someone had removed the fuser from, I found a nearly-unused > > 4L at the > > nearby thrift store yesterday. It printed the test page > > without a > > burp, but was on the shelf without a price. I found > > someone to get it > > priced and walked out a happy customer $6 later. > > > > The only thing it's missing is a right-angle IEC power > > cord to fit > > behind the access door, but it works well enough with a > > straight-in > > cable. > > > > -ethan > > > > > > ------------------------------ > > Message: 19 > Date: Sun, 25 Jan 2009 12:45:58 -0500 > From: Ethan Dicks <ethan.dicks at gmail.com> > Subject: Re: Thrift store score: HP LJ4L > To: "General Discussion: On-Topic and Off-Topic Posts" > <cctalk at classiccmp.org> > Message-ID: > <f4eb766f0901250945o14a0af48od618cc42fadf7f07 at mail.gmail.com> > Content-Type: text/plain; charset=ISO-8859-1 > > On Sun, Jan 25, 2009 at 11:15 AM, Mike Loewen > <mloewen at cpumagic.scol.pa.us> wrote: > > On Sun, 25 Jan 2009, Ethan Dicks wrote: > > > >> ... I found a nearly-unused 4L at the nearby thrift store yesterday. > > > > I had pretty much given up on finding interesting vintage electronics at > > Goodwill... > > Mostly, I find calculators or 1970s clocks, but not much in the area > of on-topic electronics at thrifts in Columbus, but I had some really > good luck with older stuff at St Vincent DePaul's in Madison over the > past 5 years (I just dug out that all-LED clock that I need to refurb > - 100-ish submini LEDs and a double-fistful of CMOS 4000-series > parts). > > The closest thing I've seen lately is a Bondi-blue original iMac for > way too much, but then they seem to get $150 for an eMachine, which > boggles me. > > > ...but I also made a good score last summer: a Data General LDM-800 > > line matrix printer for $4.95 (half-price day). There's not a thing wrong > > with it, after a couple of alignment procedures. They actually had two of > > them, but I only had room for one. :-) > > Interesting. We never get stuff like that at our thrifts. I presume > industrial stuff gets recycled in other ways. > > -ethan > > > ------------------------------ > > Message: 20 > Date: Sun, 25 Jan 2009 12:48:00 -0500 > From: Ethan Dicks <ethan.dicks at gmail.com> > Subject: Re: Thrift store score: HP LJ4L > To: "General Discussion: On-Topic and Off-Topic Posts" > <cctalk at classiccmp.org> > Message-ID: > <f4eb766f0901250948j7430cc37pe163174444cab7da at mail.gmail.com> > Content-Type: text/plain; charset=ISO-8859-1 > > On Sun, Jan 25, 2009 at 12:43 PM, Vernon Wright <vern4wright at yahoo.com> wrote: > > You are lucky; the thrift stores I inhabit here in San Diego won't sell if there isn't a price tag. They hold it to the next day and price it overnight...which is a BIG bore if I really want it and have to come back the next day - which won't be seniors 50% off day, of course :) > > Normally that's my experience, too, but this place has a large back > room, so they aren't supposed to set things out unpriced and price > them later. I do consider myself lucky that they priced it while I > waited. Perhaps it was because it was on the shelf with two dozen > printers and scanners and they didn't have any spare room on the shelf > to let it wait. > > -ethan > > > > End of cctalk Digest, Vol 65, Issue 57 > **************************************

17 years, 7 months

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someone selling bitsavers cd's on ebay?

by brian＠quarterbyte.com

My favorite is the one covering the "APPOLO GUIDANCE COMPUTER" and "An emulator that simulates a hole host of different computers".

17 years, 7 months

1
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someone selling bitsavers cd's on ebay?

by frustum＠pacbell.net

I just noticed this: http://search.ebay.com/_W0QQsassZmariamarkham Considering some of the odd groupings (eg DIGITAL EQUIPMENT CORPORATION AND OSBORNE DOCUMENTS), it seems like this person is perhaps not putting a lot of effort into this or isn't knowledgeable. And if they aren't either of those, what are the odds they'd bother collecting and scanning these materials? On the one hand you can argue: they are just offering a service for people who can't download large volumes of documents. On the other hand, all of us are skating on some thin ice by scanning copyrighted material in the hopes that nobody really cares. It seems like a bad precedent for someone to be selling them for profit.

17 years, 7 months

5
5
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Help identifying a big ol' drive platter

by derschjo＠mail.msu.edu

Hey all -- I don't usually buy things like this, I prefer to collect parts I can actually use on a regular basis, but I couldn't pass this up -- it's just too cool. It's an ancient hard disk platter, about 31" in diameter and maybe 1/8" thick. It's made by 3M and has a label sporting a serial number and inspection /waxing/etc dates from November of 1966. Any ideas what kind of drive this would have belonged to? Any ideas on capacity? I have a couple of photos at http://yahozna.dyndns.org/computers/platter. I'd love to know what this went to. It looks nice on my wall, right next to the IBM Microdrive... Thanks! Josh

17 years, 7 months

7
12
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Wall warts; was: hams on classiccmp

by technobug＠comcast.net

On Jan 19, 2009, at 09:47:55 -0800, Chuck Guzis" wrote: > On 19 Jan 2009 at 11:17, Jules Richardson wrote: > >> It's always surprised me that stuff like that's legal in the US, >> given the >> nature of the power outlets; it doesn't need a lot of weight for >> the device >> plugged into the wall to tilt slightly and risk the exposure of >> live metal >> contacts (heck, normal power cords and pets are a bad enough >> combination :-) > > Electrical safety requirements and certification in the US is a hodge- > podge of private (e.g. Underwriters Labs), state and local building > code) and Manufacturers and trade associations (NEC, IEEE "green > book"). Action with individual products is taken on a Federal level > only when a sufficient number of episodes have shown a device to pose > a danger (Consumer Product Safety Commission). AFAIK, there are no > Federal standards for electrical product safety--although there are > for RF emission. > > Basically, it's cowboy electrical safety when it comes to consumer- > level mains-operated devices. Basically, in the US the UL is the standard which one follows (CE if you want to go elsewhere). Failing to meet the UL/CE standards generally has force of law in the US due to the ever diligent lawyers. Failure to meet (and get fully tested and certified) opens one up to a suit where one has to prove that the design is safe. Whereas, if certified, the suer has to prove either negligence on the part of the manufacturer or show that the certification is at fault. The latter rarely happens. Extensions to the NEC (National Electrical Codes - a published standard which is implemented locally) rarely step into the areas where the UL/CE standards bear. However, some localities can't keep their hands out of the pie... Wall warts relieve the manufacturer of a product of having to certify the product to the lebenty-leben, various, multitudinous and sundry standards since the w/w manufacture does this for you. The low voltage output eliminates all the mains testing and certification. To give you an idea, the difference in testing and certifying one of our product with an internal supply and one using a wart exceeded $20k and that was over 15 years ago. Since this was a fairly low volume device you can guess the direction we went. Even using a certified power supply requires that the entry and attachment be certified if not provided by the p/s manufacturer. If one wants to be a cowboy and manufacture a consumer-level mains- operated device without certification, make sure all your assets are safely ensconced in a Cayman Island account. CRC

17 years, 7 months

15
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Stuff available in Cupertino, CA -- Free for local pickup, or make offer

by jeff.kaneko＠juno.com

Hey Bill-- I live in Merced, and would like to come to SIlicon Valley to pick up the Sony Monitor. How soon do you need me to come get this (assuming it hasn't been claimed already)? Also, I could find no specifications for this monitor. Can it do Sync on Green? Jeff -- William Maddox <wmaddox at pacbell.net> wrote: I am cleaning house and have the following available to a good home. All are free if you can pick up locally in Cupertino, CA. Otherwise, if you make a decent offer I'll ship the smaller items. I'm looking to clear out some stuff quickly. * Northstar Horizon chassis and power supply, with backplane * Atari 520ST gear (2 system units, power supply, monitor) * Keyboards for TI99/A, Coleco Adam, Atari 1200XL * Sun/Sony GDM-20E220 Trinitron CRT monitor * Perkin-Elmer "Owl" terminal (fixer-upper or parts) While perhaps a bit off-topic, I also have the following available: * ePods internet appliances (slate-style with stylus, runs Windows CE) * I-Opener internet appliances (desktop with integral LCD, hack to run Windows or Linux) * Webpal internet appliances (ARM-based, VGA, hack to run Linux) * Barometric pressure transducer assembly, e.g., for digital weather station I have posted more detailed descriptions at www.harlie.org/stuff.html --Bill ____________________________________________________________ Click for great deals on extra fine men's wedding bands. http://thirdpartyoffers.juno.com/TGL2141/fc/PnY6rw2wI1xAeJNxyfdWDTZFpi8kjXq…

17 years, 7 months

2
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Computers, Monitors, Printers in San Antonio, TX

by mtapley＠swri.edu

All, a fellow collector, John Gold in San Antonio, Texas, needs the space his collection now occupies. He needs that collection to evaporate, one way or another, to clear that space. I think there are probably items in it that will be of interest here. Please contact him at jhgold at stic.net to arrange payment, transfer, etc. Obviously, your coming to collect is preferable, but I think shipping is possible. I had not met him before he contacted me via one of the "rescue" lists, but spent a very enjoyable afternoon picking up some of his systems and accessories; I'd have no hesitation working with him myself, based on that experience. Other than that, I have no connection and am just acting as a messenger. A list of the items he's getting rid of is below. He has not set prices for these. Since I like him, and I'd like to see him get some tangible reward for his work in amassing, protecting, cataloging, and dispersing this collection, I encourage you to send a reasonable offer for what you are interested in. If you see things which are worth serious money, you might point those out to him as well. I have added my suggestions for "reasonable offers" to the list below, but these are *only* my suggestions. Computers $50 IBM 5324 large old work station/main frame HP Pavilion 7370V $30 IBM Power Server 320 Type 7012 $20 Macintosh Power PC G3 M4405 233MHz w/ keyboard & mouse $100 Apple 3 $10 CompuAdd 212 Model A002 Leading Edge DC-3010 PC Clone Tall Tower Eltech desktop clone PC Clone mini tower CompuAdd 325 Desktop Dell Dimension XPS M200S Dell Optiplex GXi $10 Sanyo MBC 550 NEC Power Mate V466 $40 Toshiba T1000 Laptop (2) w/ parts $40 Toshiba T1000SE Laptop (2) $30 NEC Multi Speed Laptop $10 Laser 128 Laptop/Portable Computer $50 IBM PC single 360K w/ HDD 5150 w/ keyboard $40 IBM AT clone NEC Ready 466ES NEC Power Mate 286 $10 AT&T Complete system w/ monitor & keyboard $10 AT&T Box (2) Model 6300 CPU1Z & CPU2 w/ 1 keyboard Compaq Presario 4550 mini tower Atari 400 w/ Cassette drive 410 IBM PS-2 Model 30 8530-001 IBM PS-2 Model 30 286 8530-U21 Packard Bell Legend 300SX 386SX-16 Compaq Prolinea MT4/66 tower GTE Government systems desktop Gateway P4D-66 Atari 520ST Monitors $20 IBM terminal 3151 RS-232 & printer ports (2) Atari SC1224 IBM 8513-001 SVGA Zenith Data Systems ZCM 1450DT $20 IBM 5153 CGA $40 Apple 3 monochrome XTRON RTB Technologies CM147E CompuAdd MCH 4095N (1989) $30 WYSE WY50 terminal w/ keyboard Dell VM1 mono (1990) Samsung MA2565 (1989) Packard Bell PB1272A (1988) Standard MCH4095N (1988) IBM 5081-16 Composite Video (1990) Sysdyne CGA (IBM clone) AES SVGA (1996) Samtron SVGA (1989) $20 IBM Terminal 3164-11 (1992) $20 NEC Multisync XV14 IBM 6405301 Serial monitor in box IBM 3164 serial terminal w/ base CompuAdd SVGA 51086 (1990) Magnavox Computer Monitor 80 video only Visual 120 Serial terminal w/ keyboard $20 NEC MultiSync JC-1401 P3A 13" (1986) $20 NEC MultiSync 3D $20 NEC MultiSync 3V Printers HP Desk Jet 500 Star NX-10 Dot Matrix Panasonic Quiet KX-P2180 $10 Epson LQ570 Dot Matrix Star NX-1000 Multi font w/ box Texas Instruments Microlaser Pro E Epson LQ-1000 Wide Carriage Dot Matrix $10 Qume Daisy Wheel w/ extra wheels and print cartridge Kodak Personal Portable Diconix 180si Miscellaneous $10/ea IBM Keyboards (5) Canon Personal Copier PC-3 w/toner cartridges Seiko Digitizer Tablets (3) $10/ea IBM SCSI drives 7204-001, 7207-001, 7210-001 EXABYTE SCSI tape drive CI Designs SCSI peripheral box / in box $20 IBM PC case 5150 $20 IBM XT case 5160 Musek scanner (no photo) Memorex scanner (no photo) IBM Keyboard??, 5015715, in box, never opened BK Precision 2040 CB Signal Generator Arnet serial expansion board, with software and cables $20 HP 1611A Logic State Analyzer for Z80? $20 Gould K105D Logic Analyzer for Z80? Various keyboards, internal cards, Creative Labs CD drives and Sound Blasters TRS-80 Printer Cassette interface for PC-2 (2) $10 TI-74 Basic Calc hand held computer NEC Versa docking station, in box , never used. -- - 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.

17 years, 7 months

1
0
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FSOT Seequa Chameleon

by steerex＠ccvn.com

Yo, I have a very nice Seequa Chameleon that needs a new home. It's in really nice condition except the carrying handle is missing. I'm not going to give it away but am willing to take a "reasonable" offer. Otherwise, it goes to the dump. If anyone is interested let me know at steerex [at] ccvn [dot] com BTW: I'm located in Western North Carolina. Steve Robertson

17 years, 7 months

7
8
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CP/M 2.2 Sector Translation Question

by ajp166＠bellatlantic.net

> >Subject: CP/M 2.2 Sector Translation Question > From: "ROBO5.8" <robo58 at optonline.net> > Date: Thu, 22 Jan 2009 18:30:54 -0500 > To: "'General Discussion: On-Topic Posts Only'" <cctech at classiccmp.org> > >Hi, > >I'd like to know if CP/M 2.2 is "Zero" biased when it comes to Sector >Translation. Since v2.2 supports Blocking/Deblocking I would assume it has >to be. I've looked at lots of code examples via Google and searched the >documentation but I cannot find a statement to that effect. The short answer is yes. > >Asking it another way: The Sector Translation routine is passed the >requested sector number in Registers B&C. Does CP/M request Sector 0 or 1 >when it wants the first sector on any track. Zero, Zed, 0. It's up to the bios to: A)translate that to a physical address, B) do what is needed for sector skew C) deblock if required. Allison >Thanks Robo

17 years, 7 months

2
1
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FSOT Seequa Chameleon

by marvin＠west.net

der Mouse wrote: > Sure, but I suspect there's a terminological mismatch here. There are > a number of people here, including me, to whom "giving away" means > "cover shipping plus a bit over for time, trouble, and materials". > (Exactly what "a bit over" means is, of course, always open to debate > and, usually, negotiation, but the details don't affect the principle.) That is a great description of "giving away"! I'm not sure how many people follow my philosophy, but picking up will almost always result in a "better deal" than having to ship stuff as well :). But to bring it back on topic to the subject line, I also have a Seequa Chamelion and software, but I don't think any docs came with it. Hopefully at some point, I'll have the time to get it checked out, and at that point it will be for sale. And no, not on oBay!

17 years, 7 months

1
0
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Wall warts; was: hams on classiccmp

by roger.holmes＠microspot.co.uk

On 23 Jan, 2009, at 11:34, cctalk-request at classiccmp.org wrote: > > Message: 19 > Date: Thu, 22 Jan 2009 17:53:09 -0800 > From: "Chuck Guzis" <cclist at sydex.com> > Subject: Re: Wall warts; was: hams on classiccmp > To: "General Discussion: On-Topic and Off-Topic Posts" > <cctalk at classiccmp.org> > Message-ID: <4978B285.25596.444EB605 at cclist.sydex.com> > Content-Type: text/plain; charset=US-ASCII > > On 22 Jan 2009 at 19:34, William Donzelli wrote: > >>> I've never understood why Christmas tree lamps (particularly the >>> miniature ones) aren't mandated as line-isolated low-voltage >>> devices. >> >> Probably because they never cause problems. > > Never? I suppose it's what you mean by "never": We were talking about risk of electrocution, not risk of fire. Even low voltage bulbs get hot and can cause fires. Roger Holmes

17 years, 7 months

1
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Tek/Xerox Phaser 740 - need parts

by Arno_1983＠gmx.de

Hello everybody, a friend of mine has a problem with his Tektronix (=Xerox) Phaser 740 color laser printer, which I had picked up, relieved of a very nasty paper jam and sold to him some time ago. The heat-resistant, non-sticking rubber sleeve of the Upper Fuser Roller (the thing that revolves around the fuser lamp) has developed severe cracking and pitting of the surface despite the fuser unit still shows 91% of life remaining. However I do not see any discolo(u)ration or other evidence that the thing got too hot. As it would be a waste of good money and resources to replace the fuser unit as a whole now (there is a counter E2PROM inside which will dictate its replacement when it "should be exhausted" anyway), we're looking for either a good fuser roller out of a fuser unit which broke in some other way (or just reached its designed-in life), or a replacement sleeve to put on the roller. Even though Tektronix (of course) doesn't recommend replacing anything short of the whole unit, I was told that the roller of a Phaser 590 or 750 would do as well. We're located in Germany, Europe btw. Thanks everybody in advance, yours sincerely Arno Kletzander -- Arno Kletzander Student Assistant // Studentische Hilfskraft Informatik Sammlung Erlangen www.iser.uni-erlangen.de Psssst! Schon vom neuen GMX MultiMessenger geh?rt? Der kann`s mit allen: http://www.gmx.net/de/go/multimessenger

17 years, 7 months

1
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Wanted: DEC Computer Lab manuals

by robgarn＠mac.com

Ed, Ethan, I have a copy of the DEC Computer Lab Teacher's Guide, 1st edition, 1968. I'll be away this weekend, but can try to get it scanned next week (and posted to bitsavers if not already there. It does have a spine...) - Robert On Jan 22, 2009, at 6:34 AM, cctech-request at classiccmp.org wrote: > > ------------------------------ > > Message: 3 > Date: Thu, 22 Jan 2009 00:45:44 -0500 > From: Ethan Dicks <ethan.dicks at gmail.com> > Subject: Wanted: DEC Computer Lab manuals > To: classiccmp at classiccmp.org > Message-ID: > <f4eb766f0901212145m5361ec1u22f48f98ead914c4 at mail.gmail.com> > Content-Type: text/plain; charset=ISO-8859-1 > > Hi, All, > > I was one of the ones lucky enough to get one of the DEC Computer Labs > on ePay last month. Mine finally showed up, and after a quick > inspection, I'm ready to make some cables and hook up some circuits. > > Somewhere, I do have the teacher's manual. It was given to me nearly > 30 years ago, a thoughtful gift from my step-dad's mother who was the > local high school chem teacher. I haven't seen my copy in years, and > I'm worried it was one of the things I lost in a basement flood in the > 1980s. I did a google search and a look through bitsavers and didn't > see anything to download, but I did see that this topic has come up on > the list before. There was a call for scanning the docs some time > back (6 years ago?) but no posting of where said scans might be. > Also, there are Phillip's pictures of the cables on grid paper, so > they look like pretty ordinary crimp pins, but I'm having to guess at > the nominal diameter... 3mm? From the cover of the student manual, it > looks like there are 25-ish of the shortest (brown) jumpers, and fewer > of each longer length, but if anyone has a documented count of the > number of each length of jumper wire, that'd be really nice to know. > > So are there scans of the student and teacher's manuals for the > Computer Lab anywhere, and does anyone have a list (including in one > of the manuals) of the normal inventory of jumper leads? > > Oh... one more thing... does anyone have any idea which bi-pin bulbs > DEC used on this? I didn 't tear mine apart far enough tonight to get > bulb details. > > Thanks, > > -ethan > > ------------------------------ > > Message: 19 > Date: Thu, 22 Jan 2009 09:32:54 +0100 (CET) > From: "Ed Groenenberg" <quapla at xs4all.nl> > Subject: Re: Wanted: DEC Computer Lab manuals > To: "General Discussion: On-Topic and Off-Topic Posts" > <cctalk at classiccmp.org> > Message-ID: > <18868.213.169.196.228.1232613174.squirrel at webmail.xs4all.nl> > Content-Type: text/plain;charset=iso-8859-1 > > > I'm also interested in a scanned or Xerox copied version, as I also > bought one of those Computer Lab's. It still has to arrive, overseas > shipping takes sometimes longer than one hopes. > >

17 years, 7 months

1
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PDX surplus stores was: Great day at Tek

by innfoclassics＠gmail.com

> I assume he means the "Tek Country Store" which has operated in various > locations since at least the early 70's. Last I heard it is somewhere on > the Beaverton Tek Campus (is that the only one left?), and is only open once > a month. I for one would love to know the current info on it. It is the Tektronix surplus store, generally selling surplus of what they use not what they make. Sounds like I have to go back also. I used to enjoy the store, the wait before the door opens, the polite run and exploring the stuff. A quick google search brought up this on the Portland robotics web site. Tektronix Country Store Beaverton Campus Building 38 Loading Dock (East side of building). 503-627-6769 Public Hours: 1st and 3rd Thursday of the month from 2-4pm www.tek.com/ir/bv_map.html People start lining up before opening to get the best stuff (including the commercial surplus store owners). Now including Tek equipment for sale, too! When I did it I was one of those commercial surplus store owners..........And they mention test equipment has been added. Another store on the Robotics list is: SurplusGizmos 5797 NW Cornelius Pass Road Hillsboro Oregon 97124 Warehouse: 503-439-1249 Mobile: 503-345-9187 Hours: Wednesday and Friday 11am to 6pm Saturday 11am to 5pm surplusgizmos.com Surplus stuff with an online store. Anyone been there? I have yet to make it. Paxton -- Paxton Hoag Astoria, OR USA

17 years, 7 months

65
336
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Running 3 phase 780s on single phase power

by bqt＠softjar.se

Patrick Finnegan <pat at computer-refuge.org> wrote: > On Sunday 18 January 2009, Bob Armstrong wrote: >> People need to understand the danger in this - in any multiphase >> power system, the neutral current is the DIFFERENCE of the current in >> the individual phases. If the load is perfectly balanced, then the >> neutral current will be zero. >> >> But, if you run the same load from three separate single phase >> circuits and (worst case) the three circuits are all the same phase, >> then the neutral current will be the SUM of all three phase currents. >> That's 3 times what it would be otherwise and runs a serious danger >> of melting the neutral and starting a fire. > > This is exactly the point I was trying to get across. I'm not going to argue with you on this, however, see below... >> Actually I thought the DEC power controllers had a circuit breaker >> in the neutral leg too just to prevent somebody from doing something >> like this. The split phase models do - are the three phase power >> controllers different ? > > I *think* that it does, but without opening one up or digging through > bitsavers, I can't remember for sure. I do seem to remember though, > that the breaker has the 3 phases, neutral, and a shunt-trip run > through it for thermal overload/lack of airflow. > > Anyways, in my experience on my 11/780 (which isn't a full config), the > CPU, memory box, unibus controller, fans, 11/03, and RX01 together draw > no more than a total of 24A at 120V, so it may be possible to run the > system off of a single 120V supply, but I wouldn't recommend it. > Adding anything like a second memory box, DU780, an RH780 or something > else to the CPU (does the LSTTL in the 785 draw more or less power than > the 780's cpu at their respective clock speeds?) What you need to understand here, is that there is nothing in a 11/780 that is actually driven by 3-phase power. And the power controller is nothing like what you are trying to describe. The 11/780, along with very much of all DEC equipment that used 3-phase power, did it just to lessen the load per fuse, along with getting enough power to the system. If you look inside, you'll see that the 3-phase goes into a power distribution box, and from there you have a number of single-phase sockets. And they are grouped in three separate groups. Each group is driven by one phase of the 3-phase power, and the other pin is ground on all sockets. And with this kind of construction, it really isn't any problem at all in using the same phase for all three phases. There are very few things DEC did which really required 3-phase power. Off my head, I know that the 86x0 machines really require 3-phase (the fans are AC motors), the RP06 drives use AC motors (probably RP04 and RP05 as well). I'm not sure, but it might be that KL-10 machines actually used 3-phase. It's been a while since I looked inside one. But as always, if you try do run a machine with 3-phase power off a single phase, you need to know how that machine is built, and if it actually is possible do "rewire" it. Don't play around with this if you don't really know, because it can be lethal both to the machine and you. Johnny

17 years, 7 months

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ebay: 3 apollo workstation cards

by legalize＠xmission.com

ebay item # 260350673746 Someone may be interested in this... not sure what workstation they are for. -- "The Direct3D Graphics Pipeline" -- DirectX 9 draft available for download <http://www.xmission.com/~legalize/book/download/index.html> Legalize Adulthood! <http://blogs.xmission.com/legalize/>

17 years, 7 months

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DW11-B (was Re: VS11)

by ethan.dicks＠gmail.com

On Thu, Jan 22, 2009 at 1:41 PM, Tony Duell <ard at p850ug1.demon.co.uk> wrote: >> > The VS11 is the M7061-YA / M7062 / M7064 Q-BUS board set. >> >> That don't make sense. The VS11 was a Unibus device. The Qbus equivalent >> was the VSV11, which was then replaced by the VSV21 (I have one of those). > > >From waht I remember, the VS11 was a VSV11 (Qbus) with a DW11-B > (Unibus-Qbus interface). I have a DW11 w/DDV11-CK for an "IB11" (IBV11 for Unibus). It came with an 11/34 from a University setting (thus the DD11V-CK backplane). I've thought about using that with a Qbus SCSI card, but haven't tried it yet. AFAIK, there's nothing funny about mapping since it's an 18-bit Qbus card presented to an 18-bit Unibus, so there shouldn't be driver issues. -ethan

17 years, 7 months

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VT-100 BNC jacks

by fsmith＠ladylinux.com

On Wednesday 21 January 2009 12:09:50 Ian Primus wrote: > What's the size of the tube? The real VT100 had a 12" tube, but I don't > know about your VT100 clone. You should be able to rob a tube from another > terminal, or a portable B&W TV set and replace it. If it's a 9" tube, hunt > down an old security monitor. A scope tube isn't going to work - those use > drastically different deflection angles (and in some cases electrostatic > deflection). > > -Ian Its 4 inches diagonally. About the size of a Osbourne 1 display. -- Kindest Regards, No Problems Only Solutions Hosting Admins Baltimore, Maryland

17 years, 7 months

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VT-100 BNC jacks

by fsmith＠ladylinux.com

On Wednesday 21 January 2009 21:14:32 Tony Duell wrote: > There were some small 5" portale TVs sold in the UK a couple of years > back. Maybe a CRT from one of those could be shoehorned in. Ok, I am going to have to take this thing apart and get some part numbers and also look around and try and find a tube. I have been playing wack a mole with some a$$hats for a internet service provider and will be for a couple more days. I will post back here after I have some more concrete info. -- Kindest Regards, No Problems Only Solutions Hosting Admins Baltimore, Maryland

17 years, 7 months

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VS11

by bqt＠softjar.se

Glen Slick <glen.slick at gmail.com> wrote: > In the VS11-FX/HX/JX Raster Graphics System Installation Manual > EK-VSFHJ-IN-001 there are illustrations of this box being used in > combination with a VRV02-AA/AB color monitor where the box is refered > to as the "keyboard interface box" and the combination of the monitor > and the "keyboard interface box" makes up the VRV02-FA/FB. > > The "keyboard interface box" video output feeds into the VS11 where > the terminal video output is then fed back out along with the VS11 > raster graphics output to the monitor. > > The VS11 is the M7061-YA / M7062 / M7064 Q-BUS board set. That don't make sense. The VS11 was a Unibus device. The Qbus equivalent was the VSV11, which was then replaced by the VSV21 (I have one of those). Ah, looking at the field guide, the M7061/7062/7064 *is* a VSV11. Johnny -- Johnny Billquist || "I'm on a bus || on a psychedelic trip email: bqt at softjar.se || Reading murder books pdp is alive! || tryin' to stay hip" - B. Idol

17 years, 7 months

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VT-100 BNC jacks

by fsmith＠ladylinux.com

On Wednesday 21 January 2009 06:19:57 Tim Shoppa wrote: > A regular VT-100 puts out composite/RS-170 video on a BNC jack on the back. > (Classic problem from a few decades ago: people plugging the school's > thinnet ethernet onto the VT-100 video out connector!) > > I don't see any BNC's on the back of Francesca's Franken-VT-100. But > I'd be pretty sure the Ball Brothers unit just takes the composite video > in. > > Didn't some early regular VT-100's use Ball Brothers screens and flybacks > too? I remember a couple variations of the CRT/flyback boards some more > reliable than the others. Somewhere I've got pictures of my garage > completely filled with VT-100's! Hi actually it does have those BNC's and yes when I was working at JPL back in the old days I had to explain to a person in charge of one of the computing department's that in fact they could not create a network series of VT-100's using the then new Thin Net network being installed lab wide. :-) The problem is the small size of the tube actually. Now the part that is broke is the neck. I am thinking maybe I can find a smaller CRT from a scope or so to replace it. But that would be after I tear this thing apart since the label for the crt itself is of course upside down and blocked by the flyback/scan board. I do see a E C as a possible company name on it. -- Kindest Regards, No Problems Only Solutions Hosting Admins Baltimore, Maryland

17 years, 7 months

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Apple Mac and CNN

by mikelee＠tdh.com

Looks like CNN is joining the bandwagon on vintage Macs, and asking for stories and content. http://www.ireport.com/ir-topic-stories.jspa?topicId=186195

17 years, 7 months

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SB-11

by fsmith＠ladylinux.com

On Wednesday 21 January 2009 06:19:57 Gordon JC Pearce MM3YEQ wrote: > Every so often this crops up... ?Is it a black-and-white CRT? ?Do you > know roughly what the scan rate is? > > Perhaps you could use a tube from a scrapped TV. ?They can't be *that* > different. Well the tube is about 4 inch in size. About the size of a old Osbourne. Not sure what it is since its broke. I guess time to remove it and look underneath for any markings. -- Kindest Regards, No Problems Only Solutions Hosting Admins Baltimore, Maryland

17 years, 7 months

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hams on classiccmp

by aek＠bitsavers.org

> Wonder who else? probably lots.. Eric Smith just got his licence. I know Don North is, as am I (wb9ggj)

17 years, 7 months

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OMSI Basic for OS/8

by dbetz＠xlisper.com

Does anyone know where I can find a reference manual for OMSI Basic for OS/8? I've found executables for OMSI Basic 3.0 for OS/8 but can't find any documentation on the net. Thanks! David

17 years, 7 months

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FREE: misc small hardware (mostly SUN)

by bob＠copenhagen.cuug.ab.ca

Dear Gentlegeeks, Thank you for your generous offers to help unburden me of some classic hardware. I was so surprised by some of the stuff that generated interest that I thought I'd list a few more odds and ends that originally seemed just too ancient or oddball to mention: 1 x Artecon SB-16 (?) SBUS serial card. No breakout cable or anything like that. 1 x SUN 540-2007 serial/parallel controller breakout panel & cable (i.e. a metal box with rubber feet and 8 serial + 1 parallel female DB25 connectors on it + a big, beefy cable to connect it to whatever used to do the Real Work) 3 x mini-DIN - female DB25 SUN serial cables (I forget what model SUN they fit) 5 x SUN mini-DIN keyboard cables ? x various SUN SCSI cables with the Really Old connectors (DB50?) they used + a couple of terminators 3 x DB25 - CENT50 Apple SCSI cables 3 x Macintosh Hard Disk Toolkits (still shrink-wrapped) No one wants the SUN power supplies? I guess no one needs them while supplies last :-) Again, please contact me off-list if you are interested in any of this stuff. And PLEASE tell me approximately where it needs to be shipped so I can figure out how much it will cost. Cheers, Bob. Bob Bramwell | The birds have vanished into the sky, | and now the last cloud drains away. +1 902 531 2289 | We sit together, the mountain and I, | until only the mountain remains. | - Li Po, 8th Century Chinese poet

17 years, 7 months

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Stuff available in Cupertino, CA -- Free for local pickup, or make offer

by wmaddox＠pacbell.net

I am cleaning house and have the following available to a good home. All are free if you can pick up locally in Cupertino, CA. Otherwise, if you make a decent offer I'll ship the smaller items. I'm looking to clear out some stuff quickly. * Northstar Horizon chassis and power supply, with backplane * Atari 520ST gear (2 system units, power supply, monitor) * Keyboards for TI99/A, Coleco Adam, Atari 1200XL * Sun/Sony GDM-20E220 Trinitron CRT monitor * Perkin-Elmer "Owl" terminal (fixer-upper or parts) While perhaps a bit off-topic, I also have the following available: * ePods internet appliances (slate-style with stylus, runs Windows CE) * I-Opener internet appliances (desktop with integral LCD, hack to run Windows or Linux) * Webpal internet appliances (ARM-based, VGA, hack to run Linux) * Barometric pressure transducer assembly, e.g., for digital weather station I have posted more detailed descriptions at www.harlie.org/stuff.html --Bill

17 years, 7 months

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Hitachi DK-815 SMD drives

by bob＠jfcl.com

Does anyone have any information on using the control panel and internal diagnostics on these drives? I have a couple that I'd like to be able to test out w/o hooking them up to a controller. The DK-815s were fairly common 8" SMD drives on Sun server systems of the Sun-3 vintage. Bitsavers and manx both appear to have nothing on them. Thanks, Bob

17 years, 7 months

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Russian PDP11 CPU chips on ebay...

by gordonjcp＠gjcp.net

http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=12036621970 Two things I wonder about: How many has he got, and how hard would it be to make an SBC-6120-alike for the -11 with that? Gordon

17 years, 7 months

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Wanted: DEC Computer Lab manuals

by quapla＠xs4all.nl

I'm also interested in a scanned or Xerox copied version, as I also bought one of those Computer Lab's. It still has to arrive, overseas shipping takes sometimes longer than one hopes. > Hi, All, > > I was one of the ones lucky enough to get one of the DEC Computer Labs > on ePay last month. Mine finally showed up, and after a quick > inspection, I'm ready to make some cables and hook up some circuits. ---snip--- > So are there scans of the student and teacher's manuals for the > Computer Lab anywhere, and does anyone have a list (including in one > of the manuals) of the normal inventory of jumper leads? > > Oh... one more thing... does anyone have any idea which bi-pin bulbs > DEC used on this? I didn 't tear mine apart far enough tonight to get > bulb details. > > Thanks, > > -ethan >

17 years, 7 months

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PRO-380 (was: Russian PDP11 CPU chips on ebay...)

by bqt＠softjar.se

Paul Koning <Paul_Koning at Dell.com> wrote: >>>>>> >>>>> "emu" == emu <emu at e-bbes.com> writes: > > emu> Quoting Gordon JC Pearce MM3YEQ <gordonjcp at gjcp.net>: > >> http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=12036621970 > >> > >> Two things I wonder about: How many has he got, and how hard would > >> it be to make an SBC-6120-alike for the -11 with that? > > emu> What's wrong with the original J11's ? I think they look even > emu> nicer than the black ones ... > > emu> And then you could make something like a PRO-385 ;-) > > Wouldn't it be a PRO-380? Well, unless you can clock it at 20 MHz > which was the original plan for the 380, but the J-11 failed to > deliver so they ended up at 10. I think he might have meant PRO-385 as an improvement on the PRO-380...? :-) However, the J11 originally didn't deliver the planned 20 MHz, but it sure delivered more than 10 MHz. The reason the PRO-380 stayed at 10 MHz anyway was because the support chips DEC used for the PRO couldn't handle higher speeds. So even though the J11 could deliver atleast 15 MHz (which is what the 11/53 and 11/73 uses) and probably 18 MHz (which is what later 11/73 and the 11/8x use), the PRO (unfortunately) stopped at 10 MHz (which you can't blame on the J11). Even worse (I think) is that P/OS never supported split I/D space, nor supervisor mode, so the PRO makes very little use of the J11 cpu. (The 11/9x machines eventually used 20 MHz J11 cpus.) > Note that making a PRO-38x means you have to reverse engineer the I/O > control gate array and the video hardware, both of which are likely to > be serious exercises in masochism. (Why reverse engineer the most > bone-headed I/O design in the history of DEC?) Either that, or a lot > of discrete parts to make a PRO-350 clone. I couldn't agree more. :-) Johnny -- Johnny Billquist || "I'm on a bus || on a psychedelic trip email: bqt at softjar.se || Reading murder books pdp is alive! || tryin' to stay hip" - B. Idol

17 years, 7 months

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Wall warts

by technobug＠comcast.net

Message: 26 Date: Tue, 20 Jan 2009 22:01:00 +0000 (GMT) From: ard at p850ug1.demon.co.uk (Tony Duell) Subject: Re: Wall warts; was: hams on classiccmp To: cctalk at classiccmp.org Message-ID: <m1LPOef-000J3QC at p850ug1> Content-Type: text/plain Tony Duell wrote: > I feel these standard, or at least the 'CE mark' is part of the > problem, > and here's why.... > > It would apperar there are either loopholes in the standard, or > plenty of > cheap electrical devices (including wall-warts) that have invalid CE > marks on them, in that I've seem enough devices that I don't consider > safe. The problem is that if the wall-wart carries the CE mark, then > as > you said, the certification for the whole product becomes a lot > easier, > and if there are any problems later, a large part of the defence is > 'But > the wall wart met the appropriate CE standards'. Specifically, what do you consider unsafe about current wall-warts? I've found all the devices I've been in of late to be well designed and quite safe - cheap, yes. Perhaps you have been expecting accessible fuses. For some time the fuses have been located next to the core under the windings and act both as current and thermal protection devices. Most of the ones I've opened up have both the primary and secondary fused. I have yet to find one with the turns actually fused open. Granted, it's a bit more work to repair one, but well worth the time it takes to unwind the primary and secondary, replace the fuses, and rewind same. ;=) > But when manufacturers were entirely responsible for what their > devices > did, they made darn sure they were safe. Said manufacturers did not > want > to end up paying out large amounts of damages. SO th products really > _were_ safe. And in so many cases the manufacturer's concept of what was safe was not that of the court. Consequently, the certification standards. > I offer as an example the PSU brick for the Philips G7000 video game. > It's a bit like awall-wart, except it has a mains input cable that you > wire to a suitale plug. But inside that brick (which is nicely screwed > together), there are no fewer than 3 protective devices. A mains-side > fuse, a secondary fuse, and a thermal fuse (on the mains side). And the reason the warts are now sealed is that some bright person, having no idea of what he/she/it was doing, opened one and (chose one) 1. set it ablaze, 2. caused some sort of laceration on a sharp edge, or 3. left it open and plugged in and fried fido. We now have a mentality that disallows Darwinism and hence the large number of people developing standards to guide and protect the designer/ manufacturer. Again, what you might consider safe might not be what others consider safe. CRC

17 years, 7 months

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FS: Psion II LZ Organizer

by silent700＠gmail.com

I believe this qualifies, more or less, as a computer, and is definitely over 10 years old: http://www.bioeddie.co.uk/models/psion-ll-organiser-lz.htm I have the main unit, which I've tested and appears to work fine, a number of ROM and RAM carts, and a bunch of books. Asking $50, including shipping in the Lower 48. International pays for shipping (sorry.)

17 years, 7 months

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SB11

by fsmith＠ladylinux.com

On Wednesday 21 January 2009 12:09:50 Gordon JC Pearce MM3YEQ wrote: > I'd build a little dinky PDP11 in it, with an added-on LTC as described > above so I could run TSX+. ?I kind of miss my PDP11, and I'd like to get > another (smaller) one. Yah I want to do this. But the power in this lil guy seems to not be up to snuff enough to power a decent setup. That is from reading some mailing list posts about it from a lil googling and help here. -- Kindest Regards, No Problems Only Solutions Hosting Admins Baltimore, Maryland

17 years, 7 months

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SB 11

by fsmith＠ladylinux.com

On Wednesday 21 January 2009 12:09:50 Glen Slick wrote: > I have one of the same VT100 boxes in its original configuration, > which is without any CRT and with a full metal skin around it with a > handle on top making it somewhat like a giant lunchbox. Ohhh that sounds neat .. do you have any pictures of it that you could share ??? > The "keyboard interface box" video output feeds into the VS11 where > the terminal video output is then fed back out along with the VS11 > raster graphics output to the monitor. > > The VS11 is the M7061-YA / M7062 / M7064 Q-BUS board set. I have a VS11 here. Maybe a couple of them. This is interesting thank you. -- Kindest Regards, No Problems Only Solutions Hosting Admins Baltimore, Maryland

17 years, 7 months

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SB 11

by fsmith＠ladylinux.com

On Wednesday 21 January 2009 21:14:32 Dave McGuire wrote: > Grrrrr. That is a fairly rare box. > > An LTC signal can be generated trivially with a tiny board that > can be buried inside the chassis. > > -Dave :-) .. I was just musing is all. I WOULD never do anything to compromise the originality of the unit in question. -- Kindest Regards, No Problems Only Solutions Hosting Admins Baltimore, Maryland

17 years, 7 months

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Keypunch drums (was Oxidation)

by roger.holmes＠microspot.co.uk

> From: "Brian Knittel" <brian at quarterbyte.com> > Subject: Re: Oxidation > >> Roger Holmes wrote: >> >> A couple of [keypunch drums] have come up on eBay in the last five >> years and both went for silly money which to me means there are >> more keypunches than drums. > > That's one interpretation, but it just considers the scarceness > factor. > You also have to figure in the saneness factor. If you want a punched > card era memorabilis, a drum is a heck of a lot easier to ship, store > and display than a whole keypunch machine. But why would someone find that particular part of a keypunch so desirable? I have many small parts of a verifier I broke up for spares for my keypunch. At silly prices someone could make a career buying keypunches and breaking them up for selling on eBay.

17 years, 7 months

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Russian PDP11 CPU chips on ebay...

by jeff.kaneko＠juno.com

-- Seth Morabito <sethm at loomcom.com> wrote: On Wed, Jan 21, 2009 at 5:06 AM, <emu at e-bbes.com> wrote: >> Quoting Gordon JC Pearce MM3YEQ <gordonjcp at gjcp.net>: >> >> http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=12036621970 >>> >>> Two things I wonder about: How many has he got, and how hard >>>would it >>> be to make an SBC-6120-alike for the -11 with that? >>> >> >> What's wrong with the original J11's ? I think they look even nicer >>than >> the black ones > > >Availability. I have no idea where to find J11s or T11s. But these >Russian >clones are on eBay almost constantly. *BUT* is that's what's really inside the plastic package? I would really like to talk to someone who bought one, and actually fired it up. Not all of the fake electronic stuff comes from China :^P ____________________________________________________________ Want to put your personal touch on your home? Click for home improvement ideas and tips. http://thirdpartyoffers.juno.com/TGL2141/fc/PnY6rw2eRIRomcdH8Pzf4yEI9rIXlf2…

17 years, 7 months

1
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cctalk Digest, Vol 65, Issue 45

by fsmith＠ladylinux.com

On Tuesday 20 January 2009 17:25:42 cctalk-request at classiccmp.org wrote: Hi Tim, Good Eye, I had to look inside but I found a sticker for a Ball Brothers Model TV-50 :-) The main logic card is in fact a generic Digital VT-100 logic board. Although I would guess the proms are different. Unfortunately the CRT neck is broke :-( Was not packed very well at all by the shipper I guess I can search around for a CRT somewheres unless anyone has a idea. ?? So I guess between this and that SB-11 (And a TU-58 I don't have) we have the makings of something interesting for sure. This system did at one time reside in the custody of a Harvard professor according to whom I got it from. Wish I knew a little more about what it was used for back in the day. > Ah, those are very interesting pictures. I'm pretty sure the CRT and cage > and PCB are Ball Brothers units, can you look for stickers with their name? > Ball Brothers made CRT+deflection circuitry+ flyback modules used in > other equipment, and at one point I even had > an IMSAI cabinet with backplane and a Ball Brothers CRT incorporated into > the front panel. -- Kindest Regards, No Problems Only Solutions Hosting Admins Baltimore, Maryland

17 years, 7 months

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SB11

by fsmith＠ladylinux.com

On Wednesday 21 January 2009 06:19:57 Pete Turnbull wrote: > Not really -- it's a tabletop CPU/system box sold for OEM use -- in > other words a standalone unit you'd build a small system, such as a > process controller, into. It has a 2 x 2 backplane, arranged serpentine > style, so you could put up to four dual-height cards in it. It has one > gotcha -- no line-time clock. > > http://www.dunnington.u-net.com/public/PDP-11/QBus_chassis > > I don't think your monitor unit was ever meant for rack mounting, > either. Apart from having no obvious mounting points for rails, the > power inlet and switch would be inside and facing the side of the rack > if the CRT were facing out the front. I expect it's a tabletop unit, or > was mounted inside something else. Which is not to say it might not > have once sat on a shelf in a rack, of course. Ahh well no Line time clock is a gotcha. :-) Would have been a little easier to Divine its true use if the complement of cards were still in it. Well then what use would this be to a hobbyist other than the obvious hollow it out and stick a PC MB in it and create some Sim pdp11 thing ?? -- Kindest Regards, No Problems Only Solutions Hosting Admins Baltimore, Maryland

17 years, 7 months

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harddisks again

by lehmann＠ans-netz.de

Hi, now I got some "models" a guy is offering me but I'm not sure about their interface: IBM 1615600 MOD 1 10SR-1 IBM 62 PC Magnetic Peripherals 47073251 Seagate Sabre 368 (92651505) Seagate ST43200K The Seagate Sabre seems to be SMD (I'm looking for SA1000 and a friend of mine is looking for SMD disks) Anyone else knows the interface of the above listed disk drives? -- Oliver Lehmann http://www.pofo.de/ http://wishlist.ans-netz.de/

17 years, 7 months

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SB11

by fsmith＠ladylinux.com

Hi Peoples, Picked up a boat load of LS11 stuff today via E-Pay and I got an enclosure called a SB11. Markings on the back indicate its a BA11-VA with Model OSB11-EA I have searched high and low and only find vauge references to it in some scientists/professors engineering documents. Anyone know what this puppy is ?? I am guessing some sort of qbus dual height expansion thingamajig. Pictures here http://www.linuxgal.com/decstuff/sb11-1.jpg http://www.linuxgal.com/decstuff/sb11-2.jpg Also in that dir is a weirdo custom ?? VT100 with a tiny 4 inch screen. I am guessing this all prob sat in some rack at one time. http://linuxgal.com/decstuff/display1.jpg http://linuxgal.com/decstuff/display2.jpg http://linuxgal.com/decstuff/display3.jpg -- Kindest Regards, Francesca (Aka LadyLinux) Baltimore, Maryland

17 years, 7 months

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Running 3 phase 780s on single phase power

by tshoppa＠wmata.com

Gordon writes: > Since extremely high current switchers are relatively cheap (at least > compared to getting three-phase installed, and massive aircon systems), > is there any reason why you *wouldn't* go down this route? Particularly > for a machine that's going to be on a lot? Go too far down that road and you just have a KL10 cabinet with a PC-clone emulator inside. At which point you may as well have kept the KL10 original and just had a PC-clone running an emulator too. Seeing as how the major operators of KL10's in the 80's were already retrofitting switchers in, I don't think that putting switchers in today would be the worst thing to do. But I bet the KL10's owner went out of his way to find one as original as possible, possibly passing over ones that had been retrofitted 15 or 20 years ago. One of the most enlightened attitudes is that since all 10's after the KI were already emulating (via microcode) a PDP-10, why not just do the emulation on a little PC-clone and call the operating system and emulator package "microcode"? Tim.

17 years, 7 months

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WTB TU-58 tapes

by jhfinedp3k＠compsys.to

I asked this before, however, I am repeating my request since I don't seem to have received any responses. I would like to purchase about 8 TU-58 tapes. Sincerely yours, Jerome Fine

17 years, 7 months

2
1
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Odd PDP-8/I

by pontus＠Update.UU.SE

Hi In one of the computer clubs books there is a drawn picture of an odd PDP-8/I. A bit of googling gave this: http://blog.iso50.com/wp-content/uploads/2008/08/windowslivewriterpdp8is-2c… (Same picture, but bigger: ) http://blog.iso50.com/wp-content/uploads/2008/08/windowslivewriterpdp8is-2c… Has anyone seen it in the wild, its a pretty wierd form factor, reminds me about the H316 Kitchen computer. Cheers, Pontus

17 years, 7 months

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FSOT: two Lear Siegler ADM-3A terminals

by ken＠seefried.com

From: Jos Dreesen / Marian Capel <jos.mar at bluewin.ch> > Or, like in my case, USD 10 for a quite nice one, with external numeric > keyboard and graphics option.

17 years, 7 months

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VT-100 BNC jacks

by tshoppa＠wmata.com

Gordon writes: > On Tue, 2009-01-20 at 18:06 -0500, Francesca C. Smith wrote: >> On Tuesday 20 January 2009 17:25:42 cctalk-request at classiccmp.org wrote: >> Hi Tim, >> >> Good Eye, >> >> I had to look inside but I found a sticker for a Ball Brothers Model TV-50 :-) >> >> The main logic card is in fact a generic Digital VT-100 logic board. Although >> I would guess the proms are different. >> >> Unfortunately the CRT neck is broke :-( >> >> Was not packed very well at all by the shipper >> >> I guess I can search around for a CRT somewheres unless anyone has a idea. ?? >Every so often this crops up... Is it a black-and-white CRT? Do you >know roughly what the scan rate is? >Perhaps you could use a tube from a scrapped TV. They can't be *that* >different. A regular VT-100 puts out composite/RS-170 video on a BNC jack on the back. (Classic problem from a few decades ago: people plugging the school's thinnet ethernet onto the VT-100 video out connector!) I don't see any BNC's on the back of Francesca's Franken-VT-100. But I'd be pretty sure the Ball Brothers unit just takes the composite video in. Didn't some early regular VT-100's use Ball Brothers screens and flybacks too? I remember a couple variations of the CRT/flyback boards some more reliable than the others. Somewhere I've got pictures of my garage completely filled with VT-100's! Tim.

17 years, 7 months

1
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SB-11 (Mailing List Faux Pas)

by fsmith＠ladylinux.com

On Tuesday 20 January 2009 17:25:42 cctalk-request at classiccmp.org wrote: > I should have done the "Smart" thing and looked up BA11-VA on the google > :-) > > I see its a cute lil expansion box as I kinda though. Oh sorry for the top posting. I am a bit under the weather and I have a consulting customer who slaps me virtually if I don't top post. :-) Thanks for the help again identifying this stuff. I will be posting some more in the coming days as I am finally in enough health after the last few years being sick to start playing with the huge pile o vintage goodness crowding me and my family of cats out of house and home. (Although the cats seem to like playing balance on the old teetering PCs and 3100's on the top of the pile :-) ) Also missed was not including the original subject of I wish to ask a thousand pardons for that transgression as well. -- Kindest Regards, No Problems Only Solutions Hosting Admins Baltimore, Maryland

17 years, 7 months

1
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cctalk Digest, Vol 65, Issue 45

by fsmith＠ladylinux.com

On Tuesday 20 January 2009 17:25:42 cctalk-request at classiccmp.org wrote: Hi Tim, Wow Good Eye Again :-) Yep there are markings over a couple connectors that say Aux Power And Restart. Someone put a piece of masking tape with +5 +12 VDC as well. So I have a mini PDP11 right here. (Reading that link however indicates its a little short on power. Makes one's head spin as this prob predates the IBM PC and what a different world we could have had if Digital had Bill Gates port 86-DOS to this rather than the IBM PC. Oh wait I kinda like my Digital hardware by and large spared the indignity of running M$ anything. :-) Bad enough the Alpha was polluted with that half hearted Win NT port. > Another thought about the SB-11... were those connectors on the back for > sending power to a companion TU-58 drive? Is the SB-11 the same form factor > as the external TU-58 enclosure? We never used them like that, we had > a top-bottom stacked dual 8" drive from... MTI? hooked to our SB-11. > > Tim. -- Kindest Regards, No Problems Only Solutions Hosting Admins Baltimore, Maryland

17 years, 7 months

1
0
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Getting a PDP-11/05, RX11, RX01 working

by toby＠coreware.co.uk

I've made some good progress with getting my 11/05 back to full working condition. The stuck bit I had earlier this month I resolved by replacing the sense/inhibit board. Thanks to everyone who advised me on this. I've also got RS232 working on the 11/05s on board console port. After a hunt through many boxes of accumulated junk I came across a little box with an RS232 port on one side and a berg connector on the other. Within the box was a crystal and some level converters. This was exactly what I needed, providing a stable external clock (9600 baud) and using the TTL levels available on the berg connector to provide RS232. Next I acquired an M9301-YF which I fitted to the terminator slot closest to the CPU and booted into its on-board console. All worked well here and I could examine and deposit values into memory via it. Then in went an RX11 (into the SBC slot) which I hooked up to a RX02 with its switches set to make it behave as an RX01. When I tried to boot by typing DX into the console after about half a second of running the machine halts and displays a PC of 4 (IO Trap I believe). If I repeat with the power to the RX01 drive switched off it continues to run until the RX01 is powered on at which point it halts. The RX02 I know to work (as an RX02 at least) as I've connected it to a QBUS machine with RXV211 to confirm Anyone have any thoughts as to what is going wrong? One possibility that occurred to me is that the SBC slot is missing the NPR signal. I have read that this is necessary for an RX11 to work. How do I check if that is present and how do I put it in if its missing? Thanks, Toby -- This message has been scanned for viruses and dangerous content by MailScanner, and is believed to be clean.

17 years, 7 months

2
2
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Running 3 phase 780s on single phase power

by tshoppa＠wmata.com

Rich writes: > The electrical > engineer on our team very carefully located three phase-isolated outlets > for us, working from the power panel outwards, before we did anything > else. We tested the plug box for phase isolation before connecting > either VAX, and we had every internal breaker off and every internal > plug disconnected for several hours while we checked the power coming > through the main breaker. In my experience with getting 3-phase power run, even though there's a 50-50 chance that by pure luck he'll get the phasing correct to run the motors in the right direction, I inevitably find that with 100% certainty that the electrician has wired it up reverse of what is actually needed :-). Tim.

17 years, 7 months

2
1
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Running 3 phase 780s on single phase power (was RE: hams on classiccmp)

by roger.holmes＠microspot.co.uk

On 19 Jan, 2009, at 23:29, cctalk-request at classiccmp.org wrote: > > Message: 7 > Date: Mon, 19 Jan 2009 11:39:13 -0800 > From: "Chuck Guzis" <cclist at sydex.com> > Subject: Re: Running 3 phase 780s on single phase power (was RE: hams > on classiccmp) > To: "General Discussion: On-Topic and Off-Topic Posts" > <cctalk at classiccmp.org> > Message-ID: <49746661.10189.338533BA at cclist.sydex.com> > Content-Type: text/plain; charset=US-ASCII > > On 19 Jan 2009 at 19:17, Roger Holmes wrote: > >> (Who has a 440v three phase computer drawing 13kVA which has three >> phase bridge rectifiers to generate fairly ripple free DC) > > What, no 40 hp MG set generating 400 Hz 3-phase? :) > > Cheers, > Chuck No but it was run off a world war two air ministry (diesel) engine driven generator for a few years. The generator was a 1700 cc twin cylinder unit with hand start and a flywheel weighing several hundred pounds. I had to keep fit to get that to start on a cold winters morning when the oil was thick and the cylinders were cold. Roger.

17 years, 7 months

2
1
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SB11

by tshoppa＠wmata.com

Another thought about the SB-11... were those connectors on the back for sending power to a companion TU-58 drive? Is the SB-11 the same form factor as the external TU-58 enclosure? We never used them like that, we had a top-bottom stacked dual 8" drive from... MTI? hooked to our SB-11. Tim.

17 years, 7 months

1
0
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SB11

by tshoppa＠wmata.com

Francesca writes: > Anyone know what this puppy is ?? We always called the SB-11 the "Shoebox 11" in our lab, it may have even been the official name. Very small PDP-11 Q-bus system. I think they were in some 70's or very early 80's DECDirect catalogs. > Also in that dir is a weirdo custom ?? VT100 with a tiny 4 inch screen. I am > guessing this all prob sat in some rack at one time. Ah, those are very interesting pictures. I'm pretty sure the CRT and cage and PCB are Ball Brothers units, can you look for stickers with their name? Ball Brothers made CRT+deflection circuitry+ flyback modules used in other equipment, and at one point I even had an IMSAI cabinet with backplane and a Ball Brothers CRT incorporated into the front panel. Tim.

17 years, 7 months

1
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Subject: Re: substitute for TI TIL306/307 Display?

by rwindham＠chartertn.net

Frank, I saw a post where you had some TIL308 displays. I need some of these for a Yaesu transcever. Do you still have some and what is the price? Regards, Chuck

17 years, 7 months

1
0
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FSOT: two Lear Siegler ADM-3A terminals

by dave＠drcircuits.com

Please advise availability of ADM-3 or 3A Terminals. Tnx David

17 years, 7 months

4
4
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Parting out Mac II's in Seattle area

by michaelgreen42＠comcast.net

Well I couldn't get rid of too many of these whole and I need to move soon so I'm parting them out. Should be some memory, power supplies, brackets, drives, something worth it to somebody. Send me an email telling me what you are looking for and what you'll pay. Not looking to make a killing here just make it worth my time. PS: I don't think there are any very interesting pds cards just standard video ones.

17 years, 7 months

1
0
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MGE EPS 2000 UPS available

by trovere＠thevalleyscw.tv

Do you still have the eps-2000 UPS ?

17 years, 7 months

1
0
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Free: AT&T 5620 Terminals

by silent700＠gmail.com

I've got four of these classic terminals, but no keyboards and no mice. They are free for pickup in NW Chicago suburbs (60074.) They are in fair to rough shape. I have not powered any of them on. I need to reclaim the space they're taking up and would really rather not see these classics scrapped. Here's one in use with an AT&T 3B2 system: http://stat-graphics.org/movies/gifs/dyndisp85a.gif

17 years, 7 months

1
0
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hams on classiccmp

by jeff.kaneko＠juno.com

-- "Roy J. Tellason" <rtellason at verizon.net> wrote: >> Alas my expeerience suggests the reverse. Back when computers were >> expensive, and chips were expensive, the manufacutrers took the >>trouble >> to put all sorts of protectinon in their machines to protect said >> expensive decices in the event of a failure. Now they don't bother. > >I would suspect that a younger crop of engineers coming up might have >some bearing on this too. :-) Actually, I would be more likely to suspect the current crop of engineering *managers* as a more likely cause (both pointy-haired and not). "My gawd, boy, those extra bits add $0.10 to our build cost! Do we really need that for the product to meet spec?" ____________________________________________________________ Protect your hands with high quality gloves. Click now! http://thirdpartyoffers.juno.com/TGL2141/fc/PnY6rw1Jw8LLo6ya1s8LS5UU5BTSFgZ…

17 years, 7 months

2
1
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LMI Lambda in San Diego needs temporary home

by sellam＠vintagetech.com

I have an LMI Lambda in San Diego that is waiting for me to come get it. The problem is that it's in a storage locker and the person holding it needs to close out the locker due to costs. I will be going down to SD in a few weeks for business but the LMI needs to be moved now. Is there someone who can go get it and temporarily store it until I can get down there? If not, it'll be lost. If someone can assist, please contact me directly. If it won't be feasible for me to retrieve it myself, I will want it to go to someone who can take it in. -- Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintage.org [ Old computing resources for business || Buy/Sell/Trade Vintage Computers ] [ and academia at www.VintageTech.com || at http://marketplace.vintage.org ]

17 years, 7 months

1
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the purge continues: free trs-80 stuff from austin, tx

by frustum＠pacbell.net

There are two categories here. First is stuff free for the price of shipping. Pick it up and it is 100% free. I don't want to ship each document to a different address. Hopefully someone wants it all. TRS-80 micro computer technical reference handbook (this is for the model I) Expansion Interface Hardware manual TRS-80 Technical Manual Troubleshooting (For Radio Shack Service Centers Only) TRS-80 Model III Service Manual TRS-80 Model 4 Service Manual TRS-80 Model 100 Technical Reference Manual LDOS Quarterly, not complete, mostly copies, but not all, 81-84 Some floppy disk alignment programs and Dysan alignment disks TRS-80 Assembly Language Programming (1st ed), Bill Barden --- The next category is free, but *must* be picked up at my house. If I cared to spend the time to find a box and pack it properly, I'd put it on ebay and get my $50 or whatever. This is a TRS-80 4P in *great* shape. It has very little yellowing as it has been in a leatherette carrying case for the past 20 years. I recently took it apart and tweaked the trimmer cap so 80 column display mode is solid again. Both drives work great, and I don't know of any defects. It comes with an original in the binder TRSDOS 6.0.2 manual, a Montezuma Micro CP/M manual, and about 100 floppies. Not all the floppies are usable on this system; some came from model I systems, or were configured for double sided drives (this machine has only single sided floppies, which was the norm for the 4P). I hate to give it up, as I spent a couple years messing around one Model IIIs in high school, so come and get it before I change my mind. :-)

17 years, 7 months

2
4
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uIEC/SD == AWESOME!

by healyzh＠aracnet.com

The uIEC/SD I bought from Jim Brain was delivered Friday night (USPS was actually unable to deliver for several days in our area). My mail is currently going to a different location than we're living, so I picked it up yesterday, and retrieved my customized C64 from storage, and got everything plugged in last night (this was the first time we'd been able to get our car out of the driveway in over two weeks). Once I figured out how to use it, all I can say it is seriously cool, way better than my MMC-Replay for dealing with D64 images, and it was a lot cheaper! I'm even able to use it with the MMC-Replay plugged in so I have my Ethernet connection. With the MMC-Replay I was only able to get one or two D64 images to work, with the uIEC most I've tried have worked. I've been playing "Temple of Apshai" all day and having a blast! :-) Now to decide if I put it in some sort of case, or if I mount it inside the C64 somehow. Zane -- | Zane H. Healy | UNIX Systems Administrator | | healyzh at aracnet.com (primary) | OpenVMS Enthusiast | | MONK::HEALYZH (DECnet) | Classic Computer Collector | +----------------------------------+----------------------------+ | Empire of the Petal Throne and Traveller Role Playing, | | PDP-10 Emulation and Zane's Computer Museum. | | http://www.aracnet.com/~healyzh/ |

17 years, 7 months

21
73
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FFS: Atari 1025 Printer box

by silent700＠gmail.com

The SX-64 box has been claimed. This is the next one up. Same deal, free for cost of shipping (I'll ship it in a larger box so the PO doesn't mar up the fine Atari graphics) from 60074. -- silent700.blogspot.com Retrocomputing and collecting in the Chicago area: http://chiclassiccomp.org

17 years, 7 months

1
0
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Oxidation

by brian＠quarterbyte.com

> Roger Holmes wrote: > > A couple of [keypunch drums] have come up on eBay in the last five > years and both went for silly money which to me means there are > more keypunches than drums. That's one interpretation, but it just considers the scarceness factor. You also have to figure in the saneness factor. If you want a punched card era memorabilis, a drum is a heck of a lot easier to ship, store and display than a whole keypunch machine.

17 years, 7 months

1
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FFS: SX-64 Box

by silent700＠gmail.com

Nope, not "box" as in slang for "computer" or "machine." This is just the cardboard box (well ok, also the Styrofoam inserts and a plastic bag) that the SX-64 came in. No serious collector should be without one! Apparently, I'm not as serious as I thought, because I've got three SX-64s (each broken in some unique way) and I've decided the box takes up too much space. None of them matched the serial # on the box, anyway. So if anyone wants it, it's free for the cost of shipping from 60074 (or if you're local, come pick it up.) Please give it a home. Even though I've got to shrink my collection and reclaim storage space, I still can't let something as simple as an old cardboard box go to the landfill. -j -- silent700.blogspot.com Retrocomputing and collecting in the Chicago area: http://chiclassiccomp.org

17 years, 7 months

1
1
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Printer ribbons (teletype)

by djg＠pdp8.net

>I was checking in case they fitted my ASR33 but it uses narrower ones. >I see lots of Teletype paper and paper tape on eBay but never ASR/KSR/ >RO 33 ribbons. Probably easy to get if you know what to ask the >suppliers for. > Teletype ribbons are standard typewriter ribbons of the type with rivets /eyelets at the end to automatically change the ribbon feed direction. Should not be difficult to find. Ones with Teletype on the box occasionally show up on ebay but I haven't seen one go by recently. The Okidata Microline 80 etc ribbons are the style you need for an ASR33 and may be easier to find in a search. Random matches from search http://www.officesupplyoutfitters.com/okidataml80.html http://cgi.ebay.com/Okidata-Microline-80-82-92-Ribbons-Qty-7_W0QQitemZ26015…

17 years, 7 months

9
9
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Looking for a mac iifx and an apple 2e

by brianlanning＠gmail.com

Hi everyone. I'd like to add a mac iifx and a later model apple iie (or possibly a 2gs) to my collection. I might also be interested in a mac cube, a working IBM PC-AT (5170), or maybe more amiga hardware I don't have. For trade, I can offer up a working amiga 2000 with a hard drive (sans keyboard and mouse probably). I also have some video editing hardware that I believe is from the late 80s or early 90s. I have three giant professional JVC (iirc) VCRs, two playback and one record. I also have what I think is an abner 2 editing controller and a FOR-A FA740 time based corrector. I have no idea how to use the video editing stuff. This came out of a working video editing lab. I'm in the north suburbs of chicago. Let me know if you're interested. Maybe we can work something out. Thanks. brian

17 years, 7 months

1
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Oxidation

by chrism3667＠yahoo.com

I don't know. You can use electrolysis to derust metal (loads of links available). Is there a similar process for other types of oxidation? --- On Mon, 1/19/09, Teo Zenios <teoz at neo.rr.com> wrote: Can't you buy an Aluminum Oxide stripper?

17 years, 7 months

1
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Oxidation

by chrism3667＠yahoo.com

Well there's been some discussion about this. It is possible to *charge* a surface w/an abrasive, but usually this happens as a result of 2 metal surfaces coming into somewhat vigorous contact, w/an intervening abrasive. By comparison I would have to think the adverse effects are minor, but it might be a valid concern. I would think to make tiny flecks of metal or other substance imbed in a surface, you'd have to push pretty hard. But some loose particles could catch on porous surfaces possibly, though I'm not sure they'd tend to stick there permanently. But who knows. ?I have asked how you could test a surface to see if it was charged w/particles, but thus far no answers. Perhaps some type of fine paper or plastic if rubbed on the surface would alert to the presence of icky stuff. But then again how would you distinguish that from the jagged surfaces of metal itself? --- On Mon, 1/19/09, William Donzelli <wdonzelli at gmail.com> wrote: From: William Donzelli <wdonzelli at gmail.com> Subject: Re: Oxidation To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Date: Monday, January 19, 2009, 10:22 AM -----Inline Attachment Follows----- > Steel wool? No, using steel wool on many other metals will later result in more corrosion. Steel wool leaves behind tiny bits of metal embedded in the metal, and these can cause problems if there is enough moisture. -- Will

17 years, 7 months

1
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Oxidation

by chrism3667＠yahoo.com

gingerly. Fine steel wool (uh, #000 or #0000) is available at craft stores. Scotch Bright pads also. Use a lubricant, light oil (even cooking/vegatable oils), or paint thinner/mineral spirits, even water (like when you wet sand a paint job). Be careful of the refuse that will result. I'm not familiar w/this equipment, might need to do some dismantling. Rinse the surfaces thoroughly. I'm no expert.. --- On Mon, 1/19/09, Roy J. Tellason <rtellason at verizon.net> wrote: From: Roy J. Tellason <rtellason at verizon.net> Subject: Re: Oxidation To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Date: Monday, January 19, 2009, 8:28 AM -----Inline Attachment Follows----- On Sunday 18 January 2009 11:23:42 pm Mike Loewen wrote: >? ???I'm in the process of rejuvenating an IBM model 29 keypunch, and a > couple of areas have some sort of oxidation on them.? The card drum is the > worst: > > http://sturgeon.css.psu.edu/~mloewen/CardDrum.jpg > >? ???The steel parts are fine, but the rest has a white material over most > of it.? I'm not sure what sort of metal it is, looks a bit dark for > aluminum but the white material looks similar to aluminum oxidation. I'll bet that stuff's galvanized (zinc-plated). > What's a good approach to cleaning it up? Steel wool? -- Member of the toughest, meanest, deadliest, most unrelenting -- and ablest -- form of life in this section of space,? a critter that can be killed but can't be tamed.? --Robert A. Heinlein, "The Puppet Masters" - Information is more dangerous than cannon to a society ruled by lies. --James M Dakin

17 years, 7 months

1
0
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xenix redux (or, how to bring back a dead xenix pc)

by brad＠heeltoe.com

This is a short story about getting data off an old xenix pc. delete now if that is not interesting :-) A while ago friend brought over an old pc which was dead. It's a 386 Compaq, very old. It had been running xenix and it was never turned off but one day the power failed. When the power came back it would not boot - the clock battery was long since dead and had lost it's disk setup. Inside is a 386 with about 4mb of ram and a Compaq ESDI controller. And a dead Dallas clock chip. I dremel tooled the Dallas clock chip and soldered in a new battery pack. I got a floppy disk image to reset the bios from someone here (thanks!) But despite many tries it would not boot. The diag program would not let me set the disk parameters exactly the way they needed to be set. most frustrating. So, I yanked the controller (ESDI), changed the jumpers and put it in another old pc which had linux on it. I booted linux and gave it the disk geometry via the command line ("hdc=1224,15,34") Once in linux I made an image of the disk using dd. It turns out that the "conv=" option is very important. I used "conv=noerrors,notrunc,sync". Originally I use "conv=noerrors" and the resulting image was bad because the disk had errors. dd conv=noerrors,notrunc,sync if=/dev/hdc of=disk.img I then put the resulting disk image on another linux box and wrote a tiny C program to search for valid sysv super blocks. It found 3. I then used "dd" to copy part of the image, with an offset (the start of the first superblock), to a new file. dd if=disk.img of=d4 bs=512 skip=2040 With that I had a valid sysv file system in a single file. I then mounted the new file using the loopback option: mount d4 /mnt -t sysv -o loop and viola! I could see all the files and could make a tar file of the root directory. Flush with success (don't you just love it when things actually work? :-) I decided to try and boot it. I used a recent copy of qemu and told it the geometry of the original disk qemu -hdachs 1000,15,34 -boot c -hda disk.img Much to my shock, it booted xenix, cleaned the file system and gave me a login prompt. Now I just have to clean up the mess in my office :-) Man that thing had a lot of dust and dirt in it. -brad

17 years, 7 months

6
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Running 3 phase 780s on single phase power (was RE: hams on

by bob＠jfcl.com

>Roy J. Tellason (rtellason at verizon.net) wrote: >Ah, THAT was the missing piece... >Now I understand what the concern is with this stuff! Right - the issue is with the original PDU, which Ian specifically said they did not rewire. That means one neutral, both inside the PDU, in the power cord, and in the power plug. The loads inside the 780 (which are single phase, as Ian said) have nothing to do with the issue. So, the 780 PDU has a three phase wye power cord (five conductors, including ground). I'm betting that they have a 220V split phase circuit to run it from, so they've wired two of the three phases together for one side of the 220V circuit, and the third phase to the other side. Best case, assuming the loads inside the 780 are balanced, that would make the neutral current the same as one of the phase currents. But that's not really a safe situation - if any of the internal loads within the 780 is turned off, disconnected, or blows its own breaker, then the neutral current will _increase_ due to the imbalance. Worst case in this situation the neutral current would be 2x normal. They probably get away with this because the PDU isn't loaded to anywhere near it's rated capacity. And let's hope they really aren't running it from three separate circuits on the same phase. Were it my 780, I'd rewire the PDU to be 220V split phase (just redistribute the third phase's outlets amongst the other two). The result would only have 2/3rds the current carrying capacity of the original, but it'd be a safe arrangement. Bob

17 years, 7 months

1
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Running 3 phase 780s on single phase power (was RE: hams on classiccmp)

by roger.holmes＠microspot.co.uk

> >> Ian King (IanK at vulcan.com) wrote: >> We *are* running the machine off three separate 110V single-phase >> circuits > - >> apparently you missed that part. > > People need to understand the danger in this - in any multiphase > power > system, the neutral current is the DIFFERENCE of the current in the > individual phases. If the load is perfectly balanced, then the > neutral > current will be zero. > > But, if you run the same load from three separate single phase > circuits > and (worst case) the three circuits are all the same phase, then the > neutral > current will be the SUM of all three phase currents. That's 3 times > what it > would be otherwise and runs a serious danger of melting the neutral > and > starting a fire. I agree with all but the last bit, because if he's running it from three separate supplies, surely he will have three neutral conductors, so no problem. Roger Holmes (Who has a 440v three phase computer drawing 13kVA which has three phase bridge rectifiers to generate fairly ripple free DC)

17 years, 7 months

4
4
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Wall warts; was: hams on classiccmp

by jeff.kaneko＠juno.com

-- "Chuck Guzis" <cclist at sydex.com> wrote: On 19 Jan 2009 at 3:15, jeff.kaneko at juno.com wrote: >> I don't bother fixing Nokia wall-warts, for example. I do have >> one here on my desk made for Motorola (13.5V @1500mA), though, >> that has been taped together. I do what I have to to keep stuff >> working around here . . . . > >I wonder if you could fuse the pieces back together with a little >methylene chloride... Oh yeah, also MEK, Brake Part Cleaner, 'Super Glue' :^P. But then I'd have to split it again if I pop the fuse again. If I *really* worry about the mechanical integrity, I use a zip tie . . . ____________________________________________________________ Click now and find huge savings on quality rechargeable batteries. http://thirdpartyoffers.juno.com/TGL2141/fc/PnY6rw1XmCze37rl1hX3xGNCO2sN103…

17 years, 7 months

2
1
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Wall warts; was: hams on classiccmp

by jeff.kaneko＠juno.com

-- "Teo Zenios" <teoz at neo.rr.com> wrote: >> I probably should try to repair the ones that have switchers in >> 'em, but I have neither the time nor the expertise . . . (sigh). > >I toss mine and get them from the local thrift for $1 or so, can't >stand split open plastic cases. Actually, I don't like it either, but alot of times I have to deal with wall-warts that either have strange voltages, strange plugs, or a particularly high current rating. These usually aren't readily available at the local thrift (although I have gotten lucky). I don't bother fixing Nokia wall-warts, for example. I do have one here on my desk made for Motorola (13.5V @1500mA), though, that has been taped together. I do what I have to to keep stuff working around here . . . . ____________________________________________________________ Click to get free information on how to copy DVD's. http://thirdpartyoffers.juno.com/TGL2141/fc/PnY6rw2oHlnHrAuwX0fE4ZNUDUYIuz0…

17 years, 7 months

4
3
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CGA monitor, 486 motherboards, cases, psu's, etc - W. Orange, NJ pickup

by jay_k_wood＠yahoo.com

Referred here by Lord Nightmare... I have a Princeton Graphics 12" CGA monitor, as well as a bunch of old 486 motherboards, CPUs, cases, PSUs, memory, etc. that I don't need/want. They are free to anyone willing to pick them up in West Orange, NJ. Please contact me at jay_k_wood at yahoo.com as I don't subscribe to this list. ---- "If I want to be free from any other man's dictation, I must understand that I can have no other man under my control." -- William Graham Sumner (1840-1910)

17 years, 7 months

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Fujistu 600lpm band printer available

by ian_primus＠yahoo.com

I've got a superfluous 600lpm Fujitsu band printer that would like a new home. Currently located in Niskayuna, NY 12309. It's a big printer, and pretty heavy. I can get exact measurements if anyone needs them, but it's bigger than a washing machine. Wide carriage, 132 columns, and as far as I know, it works - it worked last time it was used, and probably even got a tuneup at the time. This was kept as a spare for a customer that used one. Problem is, that the customer's printer never really broke. These things are workhorses. I hate to see it get scrapped, but I just don't need it, and don't have space to store it. Give your cats a nice, humming, warm place to sleep! Adopt a line printer today! -Ian

17 years, 7 months

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hams on classiccmp

by dave＠mitton.com

I don't find it at all surprising that there would be a large crossover between amateur radio and this list. I got involved with electronics and radio before computers were affordable for personal work. I got my novice ticket in 1972, but let it languish and sold off my Heathkit equipment over the years. With the removal of Morse code requirements and web sites like www.qrz.com I got my General class ticket a little over a year ago. I only had to study up on the some recent stuff and dust off some old neurons. Dave. W1MMX

17 years, 7 months

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hams on classiccmp

by silent700＠gmail.com

On Sun, Jan 18, 2009 at 6:28 PM, Mark Tapley <mtapley at swri.edu> wrote: > Or hook one or more of our classic systems up to one, that would be even > cooler. Lots of packet radio gear out there for older computers. I've got a PackRat-64 (Commodore) interface I'd like to set up some day. And of course, any device with a serial port and comms software can interface to a TNC box. This reminds me of a very common salesman's pitch when I'm caught eyeing any old computer at hamfests: "Great For Packet!" -j

17 years, 7 months

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Wall warts; was: hams on classiccmp

by jeff.kaneko＠juno.com

-- "Chuck Guzis" <cclist at sydex.com> wrote: >The ones in the USA are supposed to be at least thermally fused--but >most are made in China, so who knows what's really inside. Now SMPSU >wall-warts with fused-together cases are becoming more commonplace. >Shame that--they could be profitably repaired. > >Anyway, sorry for the topic drift. Good to see that someone else >hates the bloody things. > >Cheers, >Chuck I relish in 'repairing' these by slamming them into the concrete lab floor, beating them into submission until I can get the case to split. Then I replace the fuse (if blown and so equipped), or replace the rectifiers or filter cap, or whatever. Then I tape the rascal back together. If the xfmr winding is open, out it goes. I probably should try to repair the ones that have switchers in 'em, but I have neither the time nor the expertise . . . (sigh). ____________________________________________________________ Shop & save on a huge selection of brand name clogs. Click now! http://thirdpartyoffers.juno.com/TGL2141/fc/PnY6rw3K5IoDvLZxgzGLt57UrQKHQ4T…

17 years, 7 months

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IMSAI 8080, Ithaca DPS-1, etc

by classiccmp＠vintage-computer.com

I just listed a bunch of stuff over at the Vintage Computer and Gaming Marketplace including a pair of IMSAI 8080 systems, an Ithaca Intersystems DPS-1, a dual 8" drive chassis and a few other odds and ends. Hopefully some folks are interested. ----- Erik Klein www.vintage-computer.com www.vintage-computer.com/vcforum - The Vintage Computer Forums marketplace.vintage-computer.com - The Vintage Computer and Gaming Marketplace

17 years, 7 months

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hams on classiccmp

by mtapley＠swri.edu

At 23:44 -0600 1/16/09, Jason wrote: >KB9SXO here. Got my Tech license years ago at one of those >cram-session deals through the local HAM club. Same here. Years back, I spent weeks trying to learn Morse code for a technician. My wife, listening over my shoulder while she read, picked it up far better than I did. On the way to the exam, I taught her V = I R and a few key frequencies, and urged her to take the test too. Fortunately for me, the very kind and encouraging Elmers running the test urged her to give it a shot as well. She copied completely clean Morse Code, I squeaked by with about 72%. I aced the technical stuff, she squeaked by with about 72%. We got successive call signs, KB6UOH and KB6UOI. (How romantic, eh? Together we make a good ham.) Someday we really ought to get a radio or two and *exercise* those privileges. Or hook one or more of our classic systems up to one, that would be even cooler. Maybe even on-topic. 73 de KB6UOH -- - 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.

17 years, 7 months

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FREE: misc small hardware (mostly SUN)

by bob＠copenhagen.cuug.ab.ca

Greetings all, I'm afraid I don't follow this list much any more so I don't know if anything on the following list will be of any interest to anybody. Since I can't bear to throw it away (sorry: recycle it...) without at least asking, here I am. It is all small stuff and all I want in return is however much it costs for me to ship it to the recipient. Without further ado: 1 x Monitor Miser for SUN keyboard/mouse (gizmo that controls monitor AC power based on user activity) 2 x SUN DIN -> audio in/out cables (probably Sparc LX related) 2 x Female 13W3 - Male VGA adapter cables (approx. 18" long) 1 x 13W3 M - M (basic SUN monitor cable) 1 x VGA M - F (extension) cable (approx. 6' long) 1 x M VGA - RGBVH BNC cable 2 x M 13W3 - RGB + sync (?) BNC cables (probably for older SUN monitors) 1 x 13W3 M - F (extension) cable 1 x F 13W3 -> M VGA adapter plug (may be from SGI) 1 x Apple MIDI adapter (really ancient) 1 x SparcBook 3 AC adapter 1 x SparcBook 3 SCSI adapter cable 1 x Sparc 10 external speaker 1 x SUN power supply (PN 300-1038-04 - Sparc 2?) 1 x SUN power supply (PN 300-1055-05 - Sparc 2?) 1 x Sony power supply (PN 68-1125-41, Model APS 24) 1 x SUN optical mouse pad (402105-003A) - assorted narrow SCSI cables and terminators, various lengths various connectors. Go ahead and ask me. 1 x SUN Fast Ethernet (100-baseTX) SBUS card (PN 501-2702919...) 2 x SUN CG3 (8-bit framebuffer, 13W3 connector) SBUS cards (PN 501-1718048449) 1 x SUN TGX1 (8-bit framebuffer, 13W3 connector) SBUS card (PN 501-2325207994) 1 x SUN SunSwift (Fast/Wide SCSI + 100-baseTX) SBUS card (PN 501-2739046491) 1 x Magma SP16 (16 port RS232 serial) SBUS card 1 x SUN X3652A Ultra 2 Creator (3D 24-bit frambebuffer, 13W3 connector) 4 x SUN X7003A memory (64M each, 2 cards/"kit") 1 x SUN X7002A memory (64M; just the one card) 4 x SUN X7001A memory (32M each, 2 cards/"kit") All this stuff is salvaged and was working fine when it came out, but that was quite a few years back: caveat receptor. I also have a SunBlade 100 system (1G memory, 2 x 120G IDE, type-5 USB keyboard, USB mouse) but I'd actually like to see if I can squeeze a few bucks out of that. Offers are welcome. Please contact me off-list with questions and requests. In another couple of weeks it will be out of here one way or another. Many thanks for your attention-span. Bob Bramwell | The birds have vanished into the sky, | and now the last cloud drains away. +1 902 531 2289 | We sit together, the mountain and I, | until only the mountain remains. | - Li Po, 8th Century Chinese poet

17 years, 7 months

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hams on classiccmp

by jeff.kaneko＠juno.com

-- Rick Murphy <rick at rickmurphy.net> wrote: >At 02:31 AM 1/17/2009, jeff.kaneko at juno.com wrote: > >>Wow, an EXTRA w/o the obligatory vanity call (or at least the >>usual 1x2 or 2X1). That's pretty rare . . . . > >What's wrong with vanity calls? :-) >73 de K1MU > -Rick Oh, I have nothing against vanities, it's just that they're so commonplace now, it's almost unusual to see an extra w/o one. Although I did find that 2x1 calls took a little getting used to . . . . ____________________________________________________________ Chart your path to success with a smart new business plan. Click here! http://thirdpartyoffers.juno.com/TGL2141/fc/PnY6rw3BIsYTBQcKPeYaAJZBl0E6NGe…

17 years, 7 months

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hams on classiccmp

by jeff.kaneko＠juno.com

-- Marvin Johnston <marvin at west.net> wrote: >> Wonder who else? > >I'm VERY active with ARDF (Amateur Radio Direction Finding.) Check >out the >www.homingin.com So. Cal results and the US ARDF team to give you an >idea. I got >my extra only so I didn't have to worry about the frequency when >putting on 80M >hunts. > >Marvin, KE6HTS Wow, an EXTRA w/o the obligatory vanity call (or at least the usual 1x2 or 2X1). That's pretty rare . . . . ____________________________________________________________ Want to put your personal touch on your home? Click for home improvement ideas and tips. http://thirdpartyoffers.juno.com/TGL2141/fc/PnY6rw2eRIRLNOMG999LUr8KQHga28k…

17 years, 7 months

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Need assistance in Land O' Lakes Florida (near Tampa)

by sellam＠vintagetech.com

Someone in Land O' Lakes, Florida wants to give me a MacTV, which I really want, but they want to utilize the packing services of the UPS store, which usually sucks and is overpriced. Is someone in that area who would be willing to go retrieve the item, pack it to my specs, and send it off? I'll be paying for packing materials and the shipping of course, and will owe a big favor (or perhaps trade for something that you may want). Please contact me directly if you can help. Thanks! -- Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintage.org [ Old computing resources for business || Buy/Sell/Trade Vintage Computers ] [ and academia at www.VintageTech.com || at http://marketplace.vintage.org ]

17 years, 7 months

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