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

by BHuntsman＠mail2.cu-portland.edu

Hi there! Anyone know the history of the Compaq MSA1000 RAID controller? It came out right around the time of the DEC acquisition by Compaq, and survived through the HP merger... Does anyone know, was it actually designed by DEC engineers, or Compaq? Thanks in advance! -Ben

13 years, 8 months

5
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Need advice: Intecolor 8001 w/ tapes

by tosteve＠yahoo.com

Acquired an Intecolor 8001, but haven't yet turned it on. Is there anything *specific* about this system to watch out for? I don't have a service manual or schematics. I know that on the CompuColor II, a close relative, the CRT controller IC is sensitive to over voltage. Thanks- Steve. See pics here: http://oldcomputers.net/temp/isc-1.jpg http://oldcomputers.net/temp/isc-2.jpg http://oldcomputers.net/temp/isc-3.jpg Keyboard not shown.

13 years, 8 months

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IBM Coax terminals, professionally refurbished

by sales＠elecplus.com

A number of people have asked abt coax terminals. I have a buddy, Rich Rappaport at RJR Electronics, that does a fantastic job of professionally refurbishing these. They come with a 90-day warranty. IBM 3472 Green/Amber Terminal Monitor $125 IBM 3472 Logic & Swivel $35 IBM 3472 122-Keyboard $60 Same prices for 3481 or 3482. He will ship within the US. Shipping is additional. Rich Rappaport RJR Electronics 5300-B Westpark Drive SW Atlanta, GA 30336 rjrelectronics at aol.com 404-349-7600 Cindy Croxton Electronics Plus 1613 Water Street Kerrville, TX 78028 (830)792-3400 phone (830)792-3404 fax AOL IM elcpls _____ No virus found in this message. Checked by AVG - www.avg.com Version: 2013.0.2793 / Virus Database: 2629/5920 - Release Date: 11/26/12

13 years, 9 months

1
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IBM 3278-2 terminal, for those that asked

by sales＠elecplus.com

The unit powers on, lights one and 2 come on, and that is it. My IBM buddies tell me it is because I don't have the mainframe to test it on. No evidence of screen burn. Cindy Croxton Electronics Plus 1613 Water Street Kerrville, TX 78028 (830)792-3400 phone (830)792-3404 fax AOL IM elcpls _____ No virus found in this message. Checked by AVG - www.avg.com Version: 2013.0.2793 / Virus Database: 2629/5920 - Release Date: 11/26/12

13 years, 9 months

1
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Apple III and Lisa

by sales＠elecplus.com

For those who asked, the Apple III powers on, the screen comes up, give a msg abt mem test, and that is all it does. I do not have the software. The Lisa, I don't have a kbd that I know of, and the power on button gives no results. Cindy Croxton Electronics Plus 1613 Water Street Kerrville, TX 78028 (830)792-3400 phone (830)792-3404 fax AOL IM elcpls _____ No virus found in this message. Checked by AVG - www.avg.com Version: 2013.0.2793 / Virus Database: 2629/5920 - Release Date: 11/26/12

13 years, 9 months

1
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Bogus VT420 on Ebay

by mloewen＠cpumagic.scol.pa.us

I ran across this on Ebay: 160925314748 The pictures are from my web site, and the description AND serial number listed are lifted right off my page: http://sturgeon.css.psu.edu/~mloewen/Oldtech/Terminals/VT420.html Even more amazing, someone apparently already bought one and gave positive feedback! Needless to say, my terminal is not for sale. I've filed a fraudulent listing complaint. Mike Loewen mloewen at cpumagic.scol.pa.us Old Technology http://sturgeon.css.psu.edu/~mloewen/Oldtech/

13 years, 9 months

4
4
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PDP-10 SAV File Format

by billdeg＠degnanco.com

> > > I've downloaded several ks10 instruction set diagnostics in .SAV file > format from trailing-edge.com. > > In a 36-bit world, I think I understand the .SAV file format. I can't > figure out the format that I've retrieved. > > I've even tried loading the .SAV files that I've retrieved into SIMH but > SIMH complains about a "Format Error". > > Any clues? Did I mung the files copying them from the website? > > Rob. > Rob, The .SV file format from OS/8 (PDP 8's OS) is kind of like .SAV...Maybe someone renamed the file extension for some reason? Bill

13 years, 9 months

3
2
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VAXstation 2000 and PDP11?

by robert.jarratt＠ntlworld.com

A curious item has come up on ebay: http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=251189751428&ssPageName =ADME:B:SS:GB:1123 Was there some kind of PDP11 addon to a 2000? Or is that just a PDP11 label stuck to a VAXstation 2000? Regards Rob

13 years, 9 months

5
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VAX 4000-300 and a CQD-423 Qbus SCSI adapter questions - solved

by ddsnyder＠zoominternet.net

Seems as though the CQD-423 likes another CSR address from the one I chose. Set it to 772150 solved the problem. This address was at one time for a KFQSA DSSI module. >>> KA670-A V3.4, VMB 2.12 Performing normal system tests. 66..65..64..63..62..61..60..59..58..57..56..55..54..53..52..51.. 50..49..48..47..46..45..44..43..42..41..40..39..38..37..36..35.. 34..33..32..31..30..29..28..27..26..25..24..23..22..21..20..19.. 18..17..16..15..14..13..12..11..10..09..08..07..06..05..04..03.. Tests completed. >>>show device DSSI Bus 0 Node 5 (DISK45) -DIA5 (RF72) DSSI Bus 0 Node 7 (*) DSSI Bus 1 Node 7 (*) UQSSP Disk Controller 0 (772150) -DUA2 (RA90) -DUA3 (RA90) UQSSP Tape Controller 0 (774500) Ethernet Adapter -EZA0 (08-00-2B-0B-B3-6E) >>>show qbus Scan of Qbus I/O Space -20000124 (760444) = 0000 -20000126 (760446) = 0B40 -20001468 (772150) = 0000 RQDX3/KDA50/RRD50/RQC25/KFQSA-DISK -2000146A (772152) = 0B00 -20001940 (774500) = 0000 TQK50/TQK70/TU81E/RV20/KFQSA-TAPE -20001942 (774502) = 0BC0 -20001F40 (777500) = 0020 IPCR Scan of Qbus Memory Space >>> To those that responded, thanks, to those who watched and have Qbus gear, another entry for the notebook of Qbus info. Dan Snyder Butler, PA

13 years, 9 months

2
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Upgrading Memory on a VAXstation 3100 Model 38

by robert.jarratt＠ntlworld.com

I recently acquired a bunch of MS42 memory options boards (several 4MB, one 8MB and one 12MB). The 12MB one could be used to take my machine from 20MB to the full complement of 32MB. The trouble is that the mounting posts used when you only have one memory option board foul the second memory option board, the manual tells me to break the old posts off, but I don't want to do any physical damage to the machine (would prefer to stick to 20MB if I have to). Is it possible to get the mounting posts out without breaking them? Or, does anyone have any spare ones? Ideally I also need the E clips to keep the two memory options boards properly spaced, I suspect I can survive without them, but if anyone has any of these going spare I'd be interested in some. Regards Rob

13 years, 9 months

1
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manx 2.0.3 is online

by legalize＠xmission.com

Hi All, Over the past year I've been working on manx now and then. Mostly I wanted to add a convenient way for me to incorporate scanned content I've contributed to bitsavers into manx. That system has been in testing for a little while now and I believe I've gotten things working to the point where they are usable by myself and a few select users to add new content to manx. For end-users you'll notice a few little bugs fixed and some new features. There is now an RSS feed of documents added to manx so that you can track new additions to manx. <http://manx.classiccmp.org/rss.php> is an RSS feed of the 200 most recently added documents. If you see any problems with manx, please file a bug report at <http://manx.codeplex.com>. -- "The Direct3D Graphics Pipeline" free book <http://tinyurl.com/d3d-pipeline> The Computer Graphics Museum <http://computergraphicsmuseum.org> The Terminals Wiki <http://terminals.classiccmp.org> Legalize Adulthood! (my blog) <http://legalizeadulthood.wordpress.com>

13 years, 9 months

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FW: [N8VEM: 15014] SCSI2IDE Progress

by LYNCHAJ＠YAHOO.COM

Major progress to report on the SCSI to IDE/SD bridge project. Now the IDE subsystem and the core CPU/RAM/UART are confirmed working with the debug monitor. The SCSI subsystem is responsive and development continues on the firmware. This will be real work since the Z53C80 will be operating in target mode versus host mode but I think it is doable. It will probably will never be a speed demon but should work fine for older slower SCSI-1 devices which is the intended audience. The project is not architecture specific. At least in theory this board could be useful for a wide variety of computers such as Atari, Amiga, Mac, DEC, etc as well as less intuitive SCSI-1 using machines such as sewing machines, synthesizers, lab equipment, etc. Please contact me if you are interested in joining the development team. Thanks and have a happy holidays! Andrew Lynch From: Andrew Lynch [mailto:LYNCHAJ at YAHOO.COM] Sent: Saturday, November 24, 2012 11:22 AM To: 'n8vem at googlegroups.com' Subject: RE: [N8VEM: 15014] SCSI2IDE Progress Thanks Wayne! That's fantastic news! Woo Hoo! Thank you very much! It sounds like we may need a change to the Flash ROM write logic. I will take a look to see if I can figure out what is causing the glitch. Thanks and have a nice day! Andrew Lynch From: n8vem at googlegroups.com [mailto:n8vem at googlegroups.com] On Behalf Of Wayne Warthen Sent: Saturday, November 24, 2012 12:07 AM To: n8vem at googlegroups.com Subject: [N8VEM: 15014] SCSI2IDE Progress I'm happy to report a little progress on the SCSI2IDE front. Today, I was able to prove out the basic board with Zapple Monitor. I was also able to drop in the existing PPIDE driver from RomWBW and prove out the PPIDE interface to a CF card (basic sector read/write tests worked). Finally, I was also able to read/write the mode data on the SCSI controller chip. This is all still a bit of a hack, but definitely coming together... The 32K flash chip on the board was giving me some trouble. The chip kept getting corrupted during power on/off cycles. I finally severed the /WR line and tied it high. The chip does have a software write protect mechanism, but I was afraid to use it because I wasn't sure if my programmer would know how to unprotect it. I intend to clean up my work and post a work-in-progress build on the Wiki in a few days. -Wayne -- You received this message because you are subscribed to the Google Groups "N8VEM" group. To view this discussion on the web visit https://groups.google.com/d/msg/n8vem/-/hLjTpXsUw_cJ. To post to this group, send email to n8vem at googlegroups.com. To unsubscribe from this group, send email to n8vem+unsubscribe at googlegroups.com. For more options, visit this group at http://groups.google.com/group/n8vem?hl=en.

13 years, 9 months

1
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BGA resoldering - flux?

by cisin＠xenosoft.com

On Thu, 22 Nov 2012, Scott Quinn wrote: > My plan was to ramp it up to 400F in an oven, soak for 5 mins, then cool > down to minimize thermal issues. Does this sound good? Is 400 degrees anywhere close to hot enough?

13 years, 9 months

5
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Windows memory requirements [was RE: Google v AltaVista - Re: Big Alphas (was Re: FS: HP AlphaServer DS15)]

by RichA＠vulcan.com

From: Liam Proven Sent: Thursday, November 22, 2012 6:57 AM > Ah, apparently *all* the Win9x codebase struggles with approaching a > gig. > For some of them, you can't /install/ with more than a certain amount, > but once it's running you can put the extra RAM back in. Not just the 9x systems. Back when I was doing systems administration at XKL, I brought in a new Dell server (dual Pentium 3 Xeons, 4GB RAM in 1 card, you know, little box for 1997 :-) running NT 4.0 Terminal Server. As I was adding engineering applications to the base install, a DLL got overwritten, the box crashed, and I had to re-install from the ground up--beginning about 19:00 on a Friday night. Long story short, I was on the phone to Round Rock from about 21:00 till 06:00 the next morning, struggling with the install, which would die at the point where the system re-boots to run from the disk instead of the CD. Turned out that the install version could not run in more than 1GB. After the shift change at Dell, the new guy on the phone said he thought there was a BIOS setting which would handle the issue, rather than my having to have a 1GB card FedEx'd for Monday morning. Yup, the BIOS indeed had a setting which was named roughly "Pretend I have only 256MB in this box". Gack. Rich Alderson Vintage Computing Sr. Systems Engineer Vulcan, Inc. 505 5th Avenue S, Suite 900 Seattle, WA 98104 mailto:RichA at vulcan.com mailto:RichA at LivingComputerMuseum.org http://www.LivingComputerMuseum.org/

13 years, 9 months

3
3
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YouTube take on my Commodore PET 2001 32-N

by terry＠webweavers.co.nz

More YouTube reveals showing computers in my collection which may be of interest to some. This time my Commodore Pet 3001 32-N (CBM 3032) http://youtu.be/H42ZPSw8EE8 Terry Stewart (Tez)

13 years, 9 months

1
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cctalk Digest, Vol 111, Issue 49

by joerg.sigle＠jsigle.com

Hi. You might google for people fixing nvidia notebook graphic boards like in the Dell M90. They report success in temperature ranges from 120 .. 200?C in their kitchen ovens for 20 minutes, where the solder may not melt, but apparenly, the heating suffices to re-establish contact for weeks thru months. I find it especially interesting that the lower temperatures also seem to work. I've even seen a poll on who tried which temperature. Sadly, who made that poll only asked for successful attempts, not failures, so their original answer on "what is the best temperature to recommend" would never be answered... Kind regards, js On 23.11.2012 19:00, cctalk-request at classiccmp.org wrote: > Message: 18 Date: Fri, 23 Nov 2012 08:28:36 -0800 (PST) From: Fred Cisin > <cisin at xenosoft.com> To: "General Discussion: On-Topic and Off-Topic > Posts" <cctalk at classiccmp.org> Subject: Re: BGA resoldering - flux? > Message-ID: <20121123082818.P57681 at shell.lmi.net> Content-Type: > TEXT/PLAIN; charset=US-ASCII On Thu, 22 Nov 2012, Scott Quinn wrote: >> >My plan was to ramp it up to 400F in an oven, soak for 5 mins, then cool >> >down to minimize thermal issues. Does this sound good? > Is 400 degrees anywhere close to hot enough? -- ------------------------------------------------------------------- Dr. med. J?rg M. Sigle +41-76-276-8694 http://www.ql-recorder.com +41-32-51-22-944 http://www.jsigle.com Have a lovely day... +49-176-964-35413

13 years, 9 months

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Hobbyist CP/M home brew computer PCBs available!

by LYNCHAJ＠YAHOO.COM

Hi If anyone is interested in building their own CP/M or other hobbyist home brew computer there are plenty of N8VEM ECB PCBs available. These can be used to build your own system from scratch or to augment an existing home brew computer. The ECB standard is essentially a Z80 bus so these PCBs are easy to interface into most any home brew system. They are also reliable and easy to assemble using only through hole components (no SMT or exotic technologies). Here is the current inventory of PCBs. As you can see there are many boards still available for the ECB systems. http://n8vem-sbc.pbworks.com/PCB-Inventory The ECB PCBs are $20 each plus $2 shipping in the US and $5 elsewhere. Most builders send a PayPal to LYNCHAJ at YAHOO.COM but other arrangements are possible. All of the design information like schematics, PCB layout, KiCAD EDA files, software, build instructions, parts lists, etc are all free and publicly posted on the N8VEM wiki. If funds and/or PayPal is an issue, we can make trades for certain computer parts, electronic components, tools, metals, coins, unused gift cards, shipping materials, scrap, etc. Please let's discuss! Thanks and have a happy holidays! Andrew Lynch

13 years, 9 months

1
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Don Maslin collection status

by aek＠bitsavers.org

After being contacted by Don's niece, I went down on behalf of CHM in July and retrieved every box of media that was in the storage unit from his garage. I've spent several months going through everything, including the PCs that were there, and could not find what I had assumed were disk images that are described in the 'sysdisk.txt' file that Don maintained which I've attached. Does anyone have any contacts with the San Diego folks that knew Don that could help with figuring out where these images would have been? It's possible either they were on more modern PCs, or on a CP/M system. CHM is not willing to take everything that is still in the storage unit (mostly paper and the computers that were in the garage). I'm going to have to make a pretty strong case for trying to recover any of the systems that are still there.

13 years, 9 months

13
43
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Gooey TU58 rollers

by ajp166＠bellatlantic.net

> >Subject: Re: Gooey TU58 rollers > From: "Ethan Dicks" <ethan.dicks at gmail.com> > Date: Tue, 28 Aug 2007 17:39:20 -0500 > To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> > >On 8/27/07, B M <iamvirtual at gmail.com> wrote: >> I am trying to get a Vax-11/750 machine up and running. It looks like the TU58 drive >> is suffering from the 'gooey roller syndrome'. > >Unsurprising. > >> I see that people have successfully used 1/2 inch (ID) Tygon tubing to replace the >> goo. Is there any specific type of Tygon tubing (eg. R3603, R2000, etc.) that is used? > >I don't know the particular variety I used in mine - I just went to >the Lowe's down the street and bought a foot of 1/2" ID tubing - >whatever they had on the shelf. I was unaware of a large amount of >varieties of tubing, so I just used what they had in stock, and it >worked perfectly. > >-ethan I started that many years ago like 1995ish. I spec'd Tygon (brnad name) as that was available to me. Most any generic Vinyl tubing works so long as it fits tight and has enough wall thickness. After about 10 years it tends to get hard, the fix is obvious. Allison

13 years, 9 months

4
3
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BGA resoldering - flux?

by saquinn624＠aol.com

Fred noted: >On Thu, 22 Nov 2012, Scott Quinn wrote: >> My plan was to ramp it up to 400F in an oven, soak for 5 mins, then cool >> down to minimize thermal issues. Does this sound good? > >Is 400 degrees anywhere close to hot enough? I'm not entirely sure. 60/40 solder melts at around 360, so I was putting a bit of a fudge factor in for lead free. There's few standards (or too many) for lead-free solder, it seems. Would thinned rosin flux work? Alexandre - the earlier LaserJets are and were very good, up to about the 4000 series. Since then it's been much more hit and miss. Quite coincidentally they also shifted production to China, but I'm sure there's absolutely no connection.

13 years, 9 months

2
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Free to a Good Home : uVAXes, LN03, LA210, 1" Instrumentation Recorders, etc [Dorset UK]

by mjd.bishop＠emeritus-solutions.com

The following "stuff" is free to a good home - downsizing the boneyard. Although, if any of it is genuinely rare or valuable I may change my mind. The deal is the usual one : collection from Portland, Dorset, UK; first come first served; collection prior to Xmas '12; no warranty as to specifics or condition; reasonable questions answered in a reasonable timescale. The highlights are: - some small (micro) VAXes - four 1" instrumentation recorders - an LN03 + consumables - an LA210 on a plinth in a large wooden box - geriatric test instruments of marginal serviceability - numerous old scopes requiring repair - some (partial) EPROM programmers "Collectors Items" 4 off SE7000 1" Instrumentation tape recorders + 2 sets of manuals + spare channel cards 1 off LA210 (I think) printer in a wooden box 1 off HP 1652B Logic Analyser [fails BIT] 1 off HP 1600A Logic Analyser [condition unknown] 1 off HP 3561 Spectrum Analyser (audio rather than RF) [flaky] 2 off HP 1200 ? storage CRO mainframes 1 off LN03 laser printer for VAXen + supplies 3 off MDB boxes for RD54 drives (c/w caddies - no disks) 1 off microVax 3400 2 off VAX 4000-200 "Junk" Fax machine - laser print very dirty (not used for several years) HP G55 USB inkjet (not used for several years) 9 off VGA monitors Stag Eprom Eraser - condition unknown Stag Gang Programmer - no PC interface, might be serial Telequipment D83 2 ch CRO 4 off [condition unknown] Gould "3000" 2 ch CRO 2 off [condition unknown] Gould OS250 CRO 2 off [condition unknown] Gould 3500 Cro 1 off [condition unknown] Gould 4050 Cro 1 off [condition unknown] Telequipment D75 1 off [condition unknown] Telequipment D66 1 off [condition unknown] [Telequipment may be worth a 3 out of 6 attempt; Goulds look more suited to breaking up; but you never know] Philips PM3295 1 off [voltage multiplier failed and unobtainium => scrap / parts] SCSI disk enclosures [condition unknown, PSU salvage ?] "Total" Junk - job lot of unservicable PSUs etc If you know of any 3rd parties with a serious use for this sort of kit, suggest they contact me. The last resort for disposition of much of this will be WEEE. Martin

13 years, 9 months

2
4
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BGA resoldering - flux?

by saquinn624＠aol.com

Alexandre intoned: > DV-series notebook? :) > [...] > >----- Original Message ----- >From: "Scott Quinn" <saquinn624 at aol.com> >To: <cctalk at classiccmp.org> >Sent: Thursday, November 22, 2012 7:45 PM >Subject: BGA resoldering - flux? > > >I have a non-CC HP device >[...] Nope, HP LaserJet p20somethingorother printer. Controller board developed random errors from time to time.

13 years, 9 months

3
3
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BGA resoldering - flux?

by saquinn624＠aol.com

I have a non-CC HP device that has developed issues, probably because of a combination of the lead-free transition and usual Chinese quality. I'm planning on attempting a re-solder by reflowing in an oven (no hot-air rework station yet). It seems as though it would be best to find some way to flux the balls to ensure that the connection is good. I'm not removing the chip, so would a solution of rosin flux diluted in alcohol and dripped onto the BGA work? Any better way, or is it unnecessary? My plan was to ramp it up to 400F in an oven, soak for 5 mins, then cool down to minimize thermal issues. Does this sound good?

13 years, 9 months

2
1
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rebuilding DC100A cartridges?

by chrise＠pobox.com

I've recently restored a DEC TU58 dual-transport tape system but am finding that 30+ year old DC100A cartridges are perhaps past the end of their useful life. The belts in many of them have rotted and broken. There are still some places you can get new cartridges, but they are more than $40 a piece. Has anyone found a way to source and replace the broken belts? I am not interested in preserving the data on the tapes as much as I am interested in just having working tapes... so I don't get ahead by moving a belt from a "good" cartridge to a bad one. I'm interested in trying to repair the bad cartridges. I've seen the writeup here, for the HP 9845 and its DC100As, http://www.hp9845.net/9845/tutorials/savetapes/index.html but that doesn't tell us what to do about broken belts other than to steal them from other cartridges... Chris -- Chris Elmquist

13 years, 9 months

7
13
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Big Alphas (was Re: FS: HP AlphaServer DS15)

by ethan.dicks＠gmail.com

On Fri, Nov 16, 2012 at 12:05 PM, Dave McGuire <mcguire at neurotica.com> wrote: > On 11/16/2012 11:09 AM, Ethan Dicks wrote: >> Nice. I have a couple of older Alphas (one is *much* larger, with a >> Futurebus+), so I know a little about the line, but not the later >> models. I had no idea HP packaged them up with their hot-swap drives. >> I've only ever seen DEC-badged Alphas in person. > > What FB+ Alphas do you have? One of these... http://www.old-computers.com/museum/computer.asp?st=1&c=895 4000 AXP Model 710. Got it 10 years ago, fiddled with it when I first got it (it boots to one of two different versions of UNIX on two of the 5 installed SCSI disks) but don't have much reason to use it often. One interesting historical note - it was formerly OSCAR, the card catalog computer for the Ohio State University library system. I picked it up from surplus for $50 because I wanted the included TSZ07 (and I can't ship a TSZ07 for $50!) I put more hours on the tape drive reading old backup tapes than I ever put on the server. It has one CPU and about 1/4 the max amount of memory. -ethan

13 years, 9 months

25
47
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floating the DUT and isolation transformers

by keithvz＠verizon.net

I'm looking to help protect against frying my DUTs, oscilloscopes, logic analyzers during testing. I've been thinking about purchasing an isolation transformers, and I've watched a couple video blog entries on the subject. [1] While I'm pretty careful what I'm probing, I don't want an inadvertent short of the test equipment ground to the positive supply rail off my DUT to blow stuff up. The strategy I intend on using is this: 1. Connect the primary side ground of the isolation transformer to ground with a normal(US) 3-prong plug. 2. Float the DUT by using a 3-prong to 2-prong adapter when plugging into the secondary side of the transformer. 3. Keep the o'scope or LA grounded with a normal 3-prong plug. My DUT for the most part is a commodore amiga that has an external 120v to +12v,-12v, and +5v power supply. I'm not intending on opening supplies, troubleshooting/repairing them or generally touching anything that has live mains power following through it. The signals I'm probing are generally ground-referenced single-ended signals. Does this approach sound reasonable? I'm looking for practical actionable advice. I'm looking at the BK1604A. [2] Thanks, Keith [1] http://www.toddfun.com/2011/04/30/isolation_transformers/ and http://www.youtube.com/watch?v=xaELqAo4kkQ (which is eevblog #279) [2] http://www.tequipment.net/BK1604A.html#

13 years, 9 months

4
3
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2nd set of photos, Kerrville warehouse

by sales＠elecplus.com

Still getting used to Picasa, sorry. 2nd set of photos is https://picasaweb.google.com/106111250846948401252/November21201203 Cindy Croxton Electronics Plus 1613 Water Street Kerrville, TX 78028 (830)792-3400 phone (830)792-3404 fax AOL IM elcpls _____ No virus found in this message. Checked by AVG - www.avg.com Version: 2013.0.2793 / Virus Database: 2629/5908 - Release Date: 11/20/12

13 years, 9 months

2
1
0 0

PDP-10 SAV File Format

by tshoppa＠wmata.com

Rob writes: > I've downloaded several ks10 instruction set diagnostics in .SAV file format from trailing-edge.com. > In a 36-bit world, I think I understand the .SAV file format. I can't figure out the format that I've retrieved. > I've even tried loading the .SAV files that I've retrieved into SIMH but SIMH complains about a "Format Error". > Any clues? Did I mung the files copying them from the website? I endeavored a little bit in the late 90's to get a modern FTP server that could move 36 bit executables intact. E.g. True 36-bit "BINARY" as per RFC 959, with the .SAV's arranged nibble-wise to work. Failing at that, I even endeavored to get a RFC for 36-bit file movement via HTTP. Tried to drop hints to Marc Crispin (author of many RFC's). But in the end I punted. What you want to do to get an intact .SAV, is grab the tape image and unpack the tape image on a PDP-10 (or emulated -10). The tape image is the primal object that will not get mangled. Tim.

13 years, 9 months

1
0
0 0

KA630 and Clones from behind the iron curtain

by holm＠freibergnet.de

Just FYI: http://www.robotrontechnik.de/html/forum/thwb/showtopic.php?threadid=4337 There are some Pictures of uVAXII processor boards, and pics of the east German and the Russian uVAX Processors at thew end of that thread. Regards, Holm -- Technik Service u. Handel Tiffe, www.tsht.de, Holm Tiffe, Freiberger Stra?e 42, 09600 Obersch?na, USt-Id: DE253710583 www.tsht.de, info at tsht.de, Fax +49 3731 74200, Mobil: 0172 8790 741

13 years, 9 months

6
8
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PDP-10 SAV File Format

by radioengr＠gmail.com

I've downloaded several ks10 instruction set diagnostics in .SAV file format from trailing-edge.com. In a 36-bit world, I think I understand the .SAV file format. I can't figure out the format that I've retrieved. I've even tried loading the .SAV files that I've retrieved into SIMH but SIMH complains about a "Format Error". Any clues? Did I mung the files copying them from the website? Rob.

13 years, 9 months

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Classic computers set ot "music"

by sales＠elecplus.com

http://www.thecreatorsproject.com/blog/vintage-computer-symphony-plays-house -of-the-rising-sun Somebody has an awful lot of free time on their hands! Cindy Croxton Electronics Plus 1613 Water Street Kerrville, TX 78028 (830)792-3400 phone (830)792-3404 fax AOL IM elcpls _____ No virus found in this message. Checked by AVG - www.avg.com Version: 2013.0.2793 / Virus Database: 2629/5898 - Release Date: 11/16/12

13 years, 9 months

3
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Museum Exhibits Sought

by jwest＠huey.classiccmp.org

Some of you may remember about a year ago I was approached about setting up a short term exhibit at a local museum with a theme of "Computers in Chess". They had a year or so of exhibits already on the schedule at the time. They recently reconnected with me and have asked me to submit a detailed proposal of items to exhibit. Of course, the proposal is due Dec 1st. The venue in question is a "real museum", so you can be assured of world-class facilities related to UV (light exposure), people certified to handle artifacts, environmental controls, security, etc. If any individuals or museums represented here might have ideas for portions of the exhibit and/or have artifacts, displays, etc. for loan I would very much like to see your ideas as quickly as possible. Rest assured that proper shipping, insurance, and compensation for temporary loan of items would be taken care of. The timeframe for the exhibit is May 2013, and the duration of the exhibit would be about 4 months. If your items are chosen to include in the proposal, the museum would contact you directly to arrange the loan and then provide a facillities report directly to the loaning institution or individual. It is very important to me that this exhibit succeeds. If you have any items related to "Computers in Chess" or display ideas, please email me off-list as soon as is possible for consideration. Jay West jwest at classiccmp.org

13 years, 9 months

11
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Google v AltaVista - Re: Big Alphas (was Re: FS: HP AlphaServer DS15)

by tshoppa＠wmata.com

Nigel Williams wrote: > On Sat, Nov 17, 2012 at 12:27:27PM +0100, Jochen Kunz wrote: > > Interesting question: Would google have happened if Altavista wherent > > ruined? > Yes, because they came up with a much better algorithm to determine > relevance of web pages. What I liked about Altavista is if I just remembered a fragment of text on a web page, or in a Usenet post, it could find it. This of course was late 90's. Google with page rank, along with the other search engines doing their own tweak of page rank, gave me the "most relevant to my search page" using their algorithm, and often not the one I wanted. Tim.

13 years, 9 months

2
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discrete transistor computer

by ed.spittles＠gmail.com

On Sun, 18 Nov 2012 22:18, "Dave" <dave.g4ugm at gmail.com> wrote: [snip] >> On 18 November 2012 19:14, Ed Spittles <ed.spittles at gmail.com> wrote: >> > On 16/11/2012 08:13, ben wrote: >> >> On 11/16/2012 12:50 AM, Ed Spittles wrote: >> >>>> [conversation about Wireless World articles - a digital computer >> >>>> built from reject germanium transistors] [snip] >> Fantastic! I got in touch with Hector Parr, and he directed >> me to a memoir he's written, and I now have a story: [snip] >> Hector read Alan's book and proceeded to get >> the Maths department and pupils to finance and build a >> machine called DENICE, designed from scratch but with >> inspiration from the book. >> [snip] >> His memoir can be bought at >> > http://www.lulu.com/shop/hector-c-parr/music-maths-and-machines/paperback/p… >> - there's a copy of this too on its way to me. [snip] >> >> (As for the reported cost of ?50 in the late 60's, I'm told a weekly shop > for a couple would be ?2 and a pint of rough > > cider would be 1/9d (that > is, 21 old pence, which were 240 to the pound.) According to >> http://safalra.com/other/historical-uk-inflation-price-conversion/, >> the project would cost ?750 today, although those anecdotal prices suggest > rather more.) > > I think ?750 is probably about right, but comparisions are difficult as > prices havn't increased uniformly. My dad earned around ?22 a week. In my > first part time job at this time I earned 10/- (50p or ?0.50 in current > money) for 4 hours work at our local Woolworths. I seem to recall paying > ?25.00 for a second hand motor bike around that time. I also remember > getting over time for swapping out around 100 tills that did the old style > ?:s:D for new ones that did ?/P one Saturday night All good info! I dimly recall getting 3d pocket money, some time in the late 60's. But I was a mere nipper and pocket money is highly variable. Perhaps a better calibration might come from the job ads in New Scientist:?there's a 1965 issue here http://books.google.co.uk/books?id=F4zFnwoUmHQC&printsec=frontcover#v=onepa… and we see a junior technician can get GBP280-520 at the University of Keele, or an 18 year old can get GBP660 by joining the Royal Navy Engineering Service. There are job ads for programming a LEO, but the private sector isn't upfront about salaries. The Tanzanian Treasury would pay you GPB2361 with free passage to program their ICT 1500, but overseas pay won't be a good indication of the value of money. [snip] > If you find any mreo info about Denice I would be really interested... Well, I found a post by ... you! On alt.folklore.computers https://groups.google.com/forum/?fromgroups=#!searchin/alt.folklore.compute… (aka http://goo.gl/ebXiT) I hope to learn a little more from Hector's book when it turns up. > Dave Wade G4UGM > Illegitimi Non Carborundum Cheers Ed (Thanks to Rick Bensene for the correction on the photo:) >> Hector later taught at Barnard Castle School, where he was > photographed in >> 1978 with a different computer: >> http://ww2.durham.gov.uk/dre/pgDre.aspx?ID=DRE10345&PIC=Y >> His memoir can be bought at > > The "computer" in the photo is appears not to be a computer, but a > terminal. > It appears to be a Southwest Technical Products CT-64 terminal. > See: > http://www.swtpc.com/mholley/CT_64/CT_64.htm > > This device was probably connected either to some form of microcomputer > (e.g., Altair, IMSAI, etc.), or potentially some home-built machine, or > was connected via modem to a remote timesharing service, as was common > in schools during the timeframe. > > Rick Bensene

13 years, 9 months

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Inventory Reduction -- IMSAI 8080, ADM3A, S100 stuff

by pjfitzpatrick207＠gmail.com

Hi All, It's time to face the fact that I simply don't have time to do much with my old computer collection and I'm going to slowly get rid of things and free up some space in my lab for "real" (meaning "paying") work. Not sure what the best way to sell this stuff is -- so I'm looking for advice -- or if there's someone on the list who's interested, we should talk. I have an IMSAI 8080, that I built in 1977 or 1978. It has the 22 slot motherboard, 24K RAM (3 x 8K Godbout boards) a serial I/O card, a NorthStar disk controller and SA400 drive with NorthStar BASIC. It all worked when I packed it away 8 or 9 years ago, but I fear the SA400 might have gotten wet in a basement flood a few years back. The computer itself stayed dry. The computer is missing two red and one blue switch handles and has a few scratches in the blue cover, but other than that, it's good. I also have a bunch of Intel multibus cards (for spare parts -- at least a couple of processors and most of the other harder to find chips). Documentation is pretty much complete. I have several floppies (copies of North Star DOS and BASIC), but I make no claim that they're still good. There's also a Lear-Siegler ADM3A terminal -- also in good condition some years ago, but again, it hasn't been powered for eight or nine years. No evidence of screen issues. I have the Maintenance Manual with schematics etc. The assembly manual was lost in the flood. Finally, I have a bunch of parts from a Z80 based system with a CPU card, a video card and a motherboard with built-in keypad and 7 segment displays. I don't know anything about it, really, and some of the boards are kind of grungy, so it's probably best considered spare parts. There is minimal, if any, documentation -- some stuff came with it, but a quick glance says it's mostly CP/M stuff, not hardware docs. I'm not sure what to do. With a bit of work, the IMSAI and terminal could be tested and running (even if I have to track down a new (?) drive, but I'm not sure I have the time to spend on it. Certainly not in the next year or so while I'm over-booked with real work. I think I'd rather sell it now, unless it makes vastly more sense to get it working and then sell it (in which case it might go back in storage for a while). As to selling it, does ebay get decent results? I'd like it to go to someone fairly knowledgeable. Is it reasonably salable in this state? All thoughts appreciated, Pat

13 years, 9 months

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classiccmp status

by jwest＠classiccmp.org

1) Due to the generosity of Richard (with myself making up the balance of the cost), there is now a wildcard SSL certificate on the classiccmp server that can provide encrypted connections for any subdomain hosted under the classiccmp server. For all of you that host websites on the classiccmp server, if you're located on a subdomain of classiccmp.org and wish to take advantage of that let me know and I'll add it to your virtual host configuration. Thanks Richard! 2) We are finally "in process" of moving our datacenter (where the classiccmp server is located). We're not actually moving any machines, we're building new infrastructure at the new datacenter and then migrating services "across the wire" from the old datacenter to the new one. Then the equipment at the old datacenter will (mostly) be scrapped. Generally we don't expect any outages for the classiccmp mailing list, bitsavers repository, and related classiccmp hosted websites, but there will be short off-hours periods of time where no changes should be made to existing content. We'll do our best to make sure any relevant issues are posted here for the list. 3) Just to make sure that newer listmembers are aware, we will gladly host any classic/vintage computer related website at no cost for you. Free disk space, Free bandwidth, etc. We provide this service not just for individuals but companies and institutions. I should point out that we'll host any service for free that is vintage computer related - not just websites. We'll host mailing lists, ftp or rsyncd repositories, whatever you wish. Hosting services is what one of my companies does as it's main line of business, so you can be assured of a world class infrastructure (not just a webserver running in someone's basement or in a corner of their business server room). If you have a vintage computer related website or content and you're tired of paying a monthly fee to have it hosted elsewhere, send me an email directly (off-list) to jwest at classiccmp.org and we'll get things set up for you. Best, Jay West

13 years, 9 months

12
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icl 1900 emulation

by francois.dion＠gmail.com

Somebody is using the Raspberry Pi to emulate an ICL 1900 mainframe here: http://sw.ccs.bcs.org/CCs/index.html Personally, I'd never heard of this computer... Fran?ois -- solarisdesktop.blogspot.com - raspberry-python.blogspot.com

13 years, 9 months

2
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Apple ][+ and clones video

by terry＠webweavers.co.nz

For those that are interested. I continued making short clips on my collection this weekend. This one was for the Apple II+. There will be no surprises here for members of this group, but some might be interested in the two clones featured towards the end of the video. the URL is http://youtu.be/Tc44R-f07KI Cheers Terry (Tez)

13 years, 9 months

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My Exidy Sorcerer on YouTube

by terry＠webweavers.co.nz

Sending to this list in case some are interested. http://youtu.be/f-neUEHhtCs Tez

13 years, 9 months

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Interesting IEEE "Computer" article on IAS and von Neumann

by cclist＠sydex.com

Since I didn't see a message to this effect and because I'm very slow on catching up with my reading, there's an interesting article in the November, 2012 issue of IEEE "Computer" titled "Debugging on the Shoulders of Giants: Von Neumann's Programs 65 Years Later" by Barry Fagin and Dale Skrein. Briefly, the two took von Newumann's programming problems described in the 1947 "Planning and Coding Problems for an Electronic Instrument" by Goldstine and von Neumann and ran them on an IAS emulator. Not surprisingly, they discovered a few errors. I say, "not surprisingly" because at the time, the IAS computer wasn't operational. It makes a nice read for a rainy afternoon. --Chuck

13 years, 9 months

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Don Maslin collection status

by tshoppa＠wmata.com

> Yes. There were no obviously labeled backups. There are copies of DOS tape backup programs, though :-( > No CD-Rs, or machines with CD-R or tape drives. There were one or two CD-Rs that appear to have been > sent to him with CP/M content. It's pretty frustrating to have gotten this far and not actually have > found the files or any backups which is why I'm hoping they may still be on machines that weren't in > the storage unit. I corresponded with Don extensively in the 1990's. I know he could work with images but I think he felt more comfortable with individual floppy disks. As a result the correspondence was largely by shipping physical disks to him. I tried to encourage him to organize disk images into a directory tree as the "usual method" of working with the collection, but do not feel I made much progress. I have a very strong belief that he largely used CP/M machines to duplicate floppies. He obviously had a PC and used Usenet and E-mail and could even FTP and I know I did exchange images with him like that, but again shipping physical disks was the primary way of moving data to him. I fully expect that his archive is a large collection of 8", 5.25", and 3.5" floppies. I know nearly every unique "original" CP/M (or MP/M or CP/M-86 or whatever) distro I found, I made sure he got the original disk. Tim.

13 years, 9 months

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Unusual PC hardware and EPROMS for sale

by jimpdavis＠gorge.net

I'm cleaning up and have items that may interest some list members. Central point software transcopy deluxe board - $30.00 http://alkaspace.com/is.php?i=142538&img=copy2.jpg 100+ AM27C2048 16X128K EPROM 40 pin package NOS - $30/OBO http://alkaspace.com/is.php?i=147940&img=eproms.jpg ISA PC-Elevator 386 + 387 co-processor board - $50 http://alkaspace.com/is.php?i=148130&img=Pc-elevator.jpg ISA Definicon 68020 coprocessor - $50 http://alkaspace.com/is.php?i=148129&img=68020-large.jpg + actual shipping - Paypal friends option. The 2 co-processors were purchased for work in the early 90's. No software located yet. Current condition unknown, stored in anti-static bag since 1992. Thanks, Jim.

13 years, 9 months

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More about Don Maslin?

by barythrin＠gmail.com

I hadn't worked with him and unfortunately only know his name from others speaking of his work. As you heard I believe he had one of the largest/complete collections of cp/m out there. He seemed like the go to guy if there was an image needed. From what I understand there wasn't an online archive of it so he just had the collection in some form offline (probably due to copyrights and liability) but he'd offer the image upon request. I thought Curtis on the vintage-computer forums had also begun creating cp/m images after Don's collection was deemed "lost". I don't recall if he was in touch with the family as well. These are just my passer by views though. I'm sure others here knew him better than my speculations.

13 years, 9 months

3
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"Code like it's 1982!"

by lproven＠gmail.com

https://sites.google.com/site/pauldunn/ SpecBAS is a remake of Sinclair BASIC - it's faster, far more powerful and more colourful than Sinclair BASIC has ever been! SpecBAS incorporates all the features of Sinclair BASIC, but with more: Procedures, with both referenced and normal variable parameters Flow control with DO..LOOP, WHILE..LOOP, DO..UNTIL Better array handling, with variable BASE settings and FOR..EACH support Better string handling with LEFT$, RIGHT$, MID$, REPEAT$ etc Memory banks which can be loaded, saved and utilised to hold a variety of data types Many, many more maths functions, with both radians and degrees support Graphics with 8bpp in any supported resolution with full palette changing, rotation, scaling etc Sound support with MOD/S3M/XM/IT/MP3/VOC/WAV etc Turtle graphics, sprites, tilemaps. And it has less: No more attribute clash no 48k restriction full disk access, so no tapes! No more beeper :) -- Liam Proven ? Profile: http://lproven.livejournal.com/profile Email: lproven at cix.co.uk ? GMail/G+/Twitter/Flickr/Facebook: lproven MSN: lproven at hotmail.com ? Skype/AIM/Yahoo/LinkedIn: liamproven Tel: +44 20-8685-0498 ? Cell: +44 7939-087884

13 years, 9 months

2
1
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discrete transistor computer

by ed.spittles＠gmail.com

> On 14 Nov 2012, at 23:09, Dave Caroline <dave.thearchivist at gmail.com> > wrote: > > > On Wed, Nov 14, 2012 at 8:36 PM, Dave Caroline > > <dave.thearchivist at gmail.com> wrote: > >> On Wed, Nov 14, 2012 at 8:04 PM, Ed Spittles <ed.spittles at gmail.com> > >> wrote: > >>> On 29 Apr 2012 at 18:46, Richard Smith wrote: > >>> > >>>> This thread reminds me of a computer we built at school from discrete > >>>> transistors. Each transistor was a NOR gate with three resistors on > >>>> the base and a collector resistor. All soldered onto squares of tag > >>>> board. We put a bunch of them together to build a shift register with > >>>> small laps as output. That would be about 1969 or 1970. Does anyone > >>>> remember any more? It must have been a published design somewhere. > >>> > >>> Richard, I think I read the book this project was based on - in the > >>> school > >>> library, mid-to-late 70's. I've been looking for it, but my > >>> recollection > >>> is so vague I haven't found it yet. I think it may have kicked off > >>> with > >>> some physical computing based on wood and ball bearings, but anyhow it > >>> worked up to a full serial CPU. My searches have been based on the > >>> recollection that the author was Wilkinson (but maybe Wilkins, Watson, > >>> Wilson, Watkins, Watkinson, ...) and, of course, it might not even > >>> have > >>> starte with W. > >> > >> How about the magazine wireless World > >> > >> http://www.fano.co.uk/history/WWcomp.html > >> > >> I do believe I have the set of articles here somewhere > > > > Now found and scanned but due to the state of the paper are scanned in > > greyscale > > The article above refers to it continuing into 1968 but the stuff I > > have found ends in December 1967 > > > > pm me for url as the files are large and cannot handle a download swarm. > > > > Dave Caroline > > Date: Thu, 15 Nov 2012 18:30:43 +0000 > From: Richard Smith <mole42 at gmail.com> > > Hi, > > I'm interested in what you have found, I'd love it to be an article about > the computer. It's a long time ago and I have only vague memories of > soldering the logic units - some of the older boys got to assemble the > actual machine! > > Best regards, > Richard I'm very excited about Dave's scans, because the circuits look right and the date of 1967 would allow for both Richard's experience of building this at school and for the author to have published as a book. He states the intention of using the design as a teaching tool. Unfortunately there's no named credit in the scanned pages (anything in the contents list Dave?). But we do have "The computer will be on show at the R.S.G.B exhibition." The one-transistor NOR gate and the toggle-flop design are both as I remember them. Likewise the fact that it's bit-serial rings a bell. Dave: can I assume you're happy for me to re-publish some or all of your scans? I want to clip out at least some diagrams and tables. [Does this list allow for attachments or MIME emails?] Fourpence-ha'penny for a diode! Cheers Ed

13 years, 9 months

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cctech Digest, Vol 111, Issue 29

by michael.99.thompson＠gmail.com

> From: <arcarlini at iee.org> > To: "'General Discussion: On-Topic and Off-Topic Posts'" <cctalk at classiccmp.org>, <cctech at classiccmp.org> > Cc: > Date: Fri, 16 Nov 2012 22:21:14 -0000 > Subject: RE: cctech Digest, Vol 111, Issue 27 > Michael Thompson [michael.99.thompson at gmail.com]: >> I was part of the team that created the Futurebus+ >> specification. My name is in the front with the other authors. > > Indeed it is. After digging up P896.1 I went and checked Digital Tech > Journal V5 N1, > which includes an article about the DECnis and that does indeed use FB+. > > I've found one Cobra (DEC 4000) document that indicates it uses FB+ too. DEC also published the "Futurebus+ Handbook for Digital Systems", ec-h1363-41. Google finds Postscript versions. I have a printed copy and could send it to Al for scanning. -- Michael Thompson

13 years, 9 months

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FPUIB (Free Pick-Up In Berkeley): Micro reference manuals

by barythrin＠gmail.com

Or if one of them has the ability to scan it (alternatively perhaps there's a scanned version out there already) it might benefit all the requestors.

13 years, 9 months

1
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cctech Digest, Vol 111, Issue 27

by michael.99.thompson＠gmail.com

> From: Ethan Dicks <ethan.dicks at gmail.com> > Date: Fri, 16 Nov 2012 11:09:10 -0500 > Subject: Re: FS: HP AlphaServer DS15 > Nice. I have a couple of older Alphas (one is *much* larger, with a > Futurebus+), so I know a little about the line, but not the later > models. I had no idea HP packaged them up with their hot-swap drives. > I've only ever seen DEC-badged Alphas in person. > > -ethan I was part of the team that created the Futurebus+ specification. My name is in the front with the other authors. -- Michael Thompson

13 years, 9 months

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More about Don Maslin?

by terry＠webweavers.co.nz

Hi Guys, I've been following this thread but don't (or rather didn't) know of Don Maslin. From what's been written it seems he's passed away and was a collector/cataloger of CP/M disks for a whole range of systems. Obviously he's well known to this group. For the sake of us "newcomers" can someone elaborate a little on Don's life and his contribution to community? Terry (Tez)

13 years, 9 months

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WinNT 3.51 for Alpha

by aek＠bitsavers.org

was wondering how rare this was http://www.ebay.com/itm/290809458943

13 years, 9 months

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Don Maslin collection status

by tshoppa＠wmata.com

Al writes: > Tim writes: >> I fully expect that his archive is a large collection of 8", 5.25", and 3.5" floppies. > In the system.txt file, there are quite a few ".zip" files listed. Yes there are, but those are not Don's speciality, which was CP/M boot disks. The zip files I gave to Don tended to be things like BIOS source files, disassemblies, etc. Probably true for others too. Often these were closely associated with a particular system or boot disk. Don never made the leap to "disk image" being the central focus. Possibly With good justification because he supported many non-FM/non-MFM formats (GCR, hard sectored, etc.) that teledisk et al did not handle. Tim.

13 years, 9 months

1
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OSCAR [was RE: Big Alphas (was Re: FS: HP AlphaServer DS15)]

by RichA＠vulcan.com

From: Ethan Dicks Sent: Friday, November 16, 2012 9:25 AM > One interesting historical note - it was formerly OSCAR, the card > catalog computer for the Ohio State University library system. Wow. I remember when OSCAR was maintained on the administrative IBM System/370 over in that building north of the library. The VAX was not even a design idea yet, of course, when I first met OSCAR. (I worked in the library from September 1973 to August 1975, first on the shelving crew and after 1 quarter at the circulation desk. When I told my Stanford students later that programming paid better than shelving books at the library, I knew what I was talking about.) Rich Alderson Vintage Computing Sr. Systems Engineer Vulcan, Inc. 505 5th Avenue S, Suite 900 Seattle, WA 98104 mailto:RichA at vulcan.com mailto:RichA at LivingComputerMuseum.org http://www.LivingComputerMuseum.org/

13 years, 9 months

2
1
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discrete transistor computer

by elson＠pico-systems.com

There are several discrete transistor computers posted on the net, some with complete schematics. http://hackaday.com/2012/04/20/building-a-computer-with-discrete-transistor… There was a German (possibly Dutch?) guy that made a discrete transistor computer using all one kind of SMT transistor and other SMT components on PC boards, it was the size of a shoebox. I can't find the link now. Jon

13 years, 9 months

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2
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Don Maslin collection status

by fjkraan＠xs4all.nl

On 2012-11-15 23:41, mc68010 <mc68010 at gmail.com> wrote: > the names of all the disks are limited to eight characters. That would > sort of indicate they were files on something. The two images of the list I got from Don were TD0 files, TeleDisk image files. EPSNQX10.TD0 and EPSNVLDC.TD0. They came in a zip EPSQX.ZIP. Some extra, 'unsorted' zips were EPSQX-B.ZIP, EPSQX-D.ZIP and EPSQX-E.ZIP. Fred Jan

13 years, 9 months

1
0
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Has anyone heard from Dave Dunfield?

by aek＠bitsavers.org

I tried sending a message to him at the dave12 address and didn't hear anything back then I noticed he hasn't posted anything here since March.

13 years, 9 months

6
12
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IBM PC replica

by brain＠jbrain.com

Is this old news: http://www.mtmscientific.com/pc-retro.html -- Jim Brain brain at jbrain.com www.jbrain.com

13 years, 9 months

15
21
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discrete transistor computer

by ed.spittles＠gmail.com

On 29 Apr 2012 at 18:46, Richard Smith wrote: > This thread reminds me of a computer we built at school from discrete > transistors. Each transistor was a NOR gate with three resistors on > the base and a collector resistor. All soldered onto squares of tag > board. We put a bunch of them together to build a shift register with > small laps as output. That would be about 1969 or 1970. Does anyone > remember any more? It must have been a published design somewhere. Richard, I think I read the book this project was based on - in the school library, mid-to-late 70's. I've been looking for it, but my recollection is so vague I haven't found it yet. I think it may have kicked off with some physical computing based on wood and ball bearings, but anyhow it worked up to a full serial CPU. My searches have been based on the recollection that the author was Wilkinson (but maybe Wilkins, Watson, Wilson, Watkins, Watkinson, ...) and, of course, it might not even have starte with W. Any info about your school or the specific teacher might help track it down. Or maybe someone here can remember it? Cheers Ed

13 years, 9 months

4
6
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Drool!!!

by robert.jarratt＠ntlworld.com

http://www.ebay.com.au/itm/Digital-DEC-VAX-11-750-mainframe-vintage-retro-co mputer-not-PDP11-microvax-/251180977499?pt=AU_Computers_Vintage&hash=item3a7 b8d8d5b Regards Rob

13 years, 9 months

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Midwest show: C4 2013

by silent700＠gmail.com

The C4 Commodore show, held every summer near Cincinnati, Ohio, did not happen this year due to lack of funds. The loyal Commodore scene doesn't want to make it two years in a row, so they are experimenting with pre-funding the show this time around: https://www.crowdtilt.com/campaigns/c4-expo-2013 For this iteration they will be following the model set by Chicago's VCFMW/ECCC and opening their show up to all sorts of vintage computing, as well as extending the event to two days. The tentative date is the weekend of June 8, 2013. Like our show, no admission will be charged, but any donations are greatly appreciated. At this time I am not part of the planning process for the show but I do plan to make a donation and, work schedule permitting, attend. Questions should be directed to the contact address on the page above. >From what I've heard, the venue alone is worth the trip. (Also the USAF Museum at Wright-Patterson AFB, which I have been to, can easily eat up a whole day.) -- silent700.blogspot.com Retrocomputing and collecting in the Chicago area: http://chiclassiccomp.org

13 years, 9 months

1
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Ton of IMSAI stuff in New Mexico...

by bdamer＠digitalspace.com

Dear CC folk, The DigiBarn received this note from someone who is trying to handle the proper dispensation of a ton of IMSAI stuff located in Albuquerque NM (not Ohio). Read on below and feel free to get directly in touch with him... ### I am in the process of clearing the estate of Gary W. Harris who opened the first computer store in Columbus, OH in about 1975. He was an IMSAI dealer. I have IMSAI equipment, including an 8080, many S-100 boards, and manuals for boards and for IMSAI equipment. Still going through stuff. There is so much stuff, and I don't want to go the EBay route with all the posting, packaging and sending. Can you advise on the disposal of this material in a way that will be to the mutual advantage of the recipient and Gary's estate. Contact: davharr at q.com ###

13 years, 9 months

4
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Tracometer and BAC levels (was: Re: mystry cards make offer or they going in trash :()

by Arno_1983＠gmx.de

On Nov 11, 2012, at 1:25 AM, mc68010 wrote: >> The testing on that device appear to have be brutal unless I am >> reading wrong. They made the subject test it at 1.2% BAC. I wonder >> how many died. Wouldn't they all ? >> >> http://pro.sagepub.com/content/31/7/751 > (...) isn't > greater than .50% generally at high risk for alcohol poisoning? > > - Dave Yes, .5% is considered "usually lethal" and probably even attainable only for the most extremely alcohol-tolerant persons (anybody else is bound to either have to go puke or pass out long before that) and/or by means of specialized consumption techniques (co-consumption of mar-jah-wana is said to suppress puking). > Um, yeah. At first I thought it was a typo, but they have similar > concentrations elsewhere and give the correct mg/L, so... Nope, it *is* methinks a typo. They're mixing up percents (%) (which is the usual parameter given for ABV in alcoholic beverages) and promille (o/oo) which is the usual unit of measurement for BAC, at least in Germany. 1 Percent is "one part of a hundred" whereas 1 Promille is "one part of a thousand", so 10 Promille make 1 Percent. The given mg/l concentration supports that (they're simplifying insofar that they calculate with a density of 1 g/ml for the blood sample), as 1200 mg/l or 1.2g/l or(about) 1.2g / 1000g is 1.2 *thousandth* (=Promille) or 0.12 % BAC (and not 1.2 % as given in the text), which makes a lot more sense for the average intoxicated person. Just my 2 o/oo... Yours sincerely, Arno Kletzander

13 years, 9 months

5
8
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old tv's and CRT's

by gerhard.kreuzer＠liftoff.at

Hi Chuck, NTSC ... Never The Same Color Gerhard -----Urspr?ngliche Nachricht----- Von: cctalk-bounces at classiccmp.org [mailto:cctalk-bounces at classiccmp.org] Im Auftrag von cctalk-request at classiccmp.org Gesendet: Samstag, 10. November 2012 19:00 An: cctalk at classiccmp.org Betreff: cctalk Digest, Vol 111, Issue 25 Send cctalk mailing list submissions to cctalk at classiccmp.org To subscribe or unsubscribe via the World Wide Web, visit http://www.classiccmp.org/mailman/listinfo/cctalk or, via email, send a message with subject or body 'help' to cctalk-request at classiccmp.org You can reach the person managing the list at cctalk-owner at classiccmp.org When replying, please edit your Subject line so it is more specific than "Re: Contents of cctalk digest..." Today's Topics: 1. Re: P112 question - what can you run that uses 1MB of RAM? (Alexandre Souza - Listas) 2. Re: old tv's and CRT's (ben) 3. Re: P112 question - what can you run that uses 1MB of RAM? (ben) 4. Re: P112 question - what can you run that uses 1MB of RAM? (Alexandre Souza - Listas) 5. Re: old tv's and CRT's (Chuck Guzis) 6. Re: P112 question - what can you run that uses 1MB of RAM? (allison) 7. Re: P112 question - what can you run that uses 1MB of RAM? (Alexandre Souza - Listas) 8. Re: P112 question - what can you run that uses 1MB of RAM? (ben) 9. Re: Disk drive manuals (Cameron Kaiser) 10. Laser printers, was Re: P112 question - what can you run that uses 1MB of RAM? (Dave McGuire) 11. PC-1/CX cartridge compatibility, was Re: P112 question - what can you run that uses 1MB of RAM? (Dave McGuire) 12. Re: Wanted: Research Inc. Teleray terminals (Ethan Dicks) 13. Re: P112 question - what can you run that uses 1MB of RAM? (allison) 14. Re: P112 question - what can you run that uses 1MB of RAM? (Mouse) 15. Sam's Computerfacts 4851 Disk Drive (Chris Tofu) 16. Re: P112 question - what can you run that uses 1MB of RAM? (Roger Pugh) 17. Re: P112 question - what can you run that uses 1MB of RAM? (Roger Pugh) 18. Re: P112 question - what can you run that uses 1MB of RAM? (Roger Pugh) 19. Re: P112 question - what can you run that uses 1MB of RAM? (ben) 20. Re: Networking a Macintosh SE/30 (Joost van de Griek) 21. Needed - rear brackets for BA23 mounting kit (Jack Rubin) 22. Re: To Metcal, or not to Metcal? Re: RepRapping. Was:Re: Restoring an Intel SDK-86 to "mostly like new" condition (Jochen Kunz) ---------------------------------------------------------------------- Message: 1 Date: Fri, 9 Nov 2012 22:30:11 -0200 From: "Alexandre Souza - Listas" <pu1bzz.listas at gmail.com> To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Subject: Re: P112 question - what can you run that uses 1MB of RAM? Message-ID: <5A3297F6A7834D649F33D6EB0E3AA0B0 at tababook> Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=response > Tell me what toner does a P112 use or is that used to color the 1MB of > ram?? Well, a 64-K CPM system will not print raster graphics with ease on a Laser Printer...You need more RAM! :oD Well, at least I tried :D ------------------------------ Message: 2 Date: Fri, 09 Nov 2012 17:40:56 -0700 From: ben <bfranchuk at jetnet.ab.ca> To: cctalk at classiccmp.org Subject: Re: old tv's and CRT's Message-ID: <509DA298.8030607 at jetnet.ab.ca> Content-Type: text/plain; charset=ISO-8859-1; format=flowed On 11/9/2012 4:17 PM, Chuck Guzis wrote: > At any rate, between 1950 and 1953, the official color television > standard in the USA was the CBS field-sequential system, which, > compared with the RCA system of the same time was quite good (at least > for the time)--a mechanical 3-color filter was spun in front of the > CRT, synchronized to a similar filter at the camera. > > It wasn't until 1953 that RCA had improved its system well enough for > NTSC color to become the official standard. > > A few CBS System receivers still exist. Lots of vintage TV's still can be found. It is getting working color CRT's that are the problem from what I read on the net. Now might be the last time to find CRT's for vintage computer equipment. > --Chuck Has the color on modern display devices matched the color purity of the early TV's yet? Ben. ------------------------------ Message: 3 Date: Fri, 09 Nov 2012 17:50:49 -0700 From: ben <bfranchuk at jetnet.ab.ca> To: cctalk at classiccmp.org Subject: Re: P112 question - what can you run that uses 1MB of RAM? Message-ID: <509DA4E9.3020107 at jetnet.ab.ca> Content-Type: text/plain; charset=ISO-8859-1; format=flowed On 11/9/2012 5:30 PM, Alexandre Souza - Listas wrote: >> Tell me what toner does a P112 use or is that used to color the 1MB of >> ram?? > > Well, a 64-K CPM system will not print raster graphics with ease on > a Laser Printer...You need more RAM! > > :oD > > Well, at least I tried :D > Well if you could access the toner drum directly from the host cpu, I am sure you could emulate a generic mono-spaced printer like a TTY in 16K including the printer fonts. Ben. ------------------------------ Message: 4 Date: Fri, 9 Nov 2012 22:59:27 -0200 From: "Alexandre Souza - Listas" <pu1bzz.listas at gmail.com> To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Subject: Re: P112 question - what can you run that uses 1MB of RAM? Message-ID: <792C68D6371B41E29AFE93C46BE4CEB5 at tababook> Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=response >> Well, a 64-K CPM system will not print raster graphics with ease on >> a Laser Printer...You need more RAM! > Well if you could access the toner drum directly from the host cpu, I am > sure you could emulate a generic mono-spaced printer like a TTY in 16K > including the printer fonts. I doubt. And you woudn't print raster graphics :) ------------------------------ Message: 5 Date: Fri, 09 Nov 2012 17:07:22 -0800 From: Chuck Guzis <cclist at sydex.com> To: General Discussion: On-Topic and Off-Topic Posts <cctalk at classiccmp.org> Subject: Re: old tv's and CRT's Message-ID: <509DA8CA.9080005 at sydex.com> Content-Type: text/plain; charset=ISO-8859-1; format=flowed On 11/09/2012 04:40 PM, ben wrote: > Has the color on modern display devices matched the color purity of the > early TV's yet? If you're talking about 1950s RCA/NTSC sets, then the answer is no--modern displays were much better. I vividly remember one of the first families on the block to get color TV around 1957. It was an RCA set--the color was greenish and the reds had a longer persistence than the other phosphors, so red objects would "smear" badly on a dark background. Really, NTSC was terrible when it was new and didn't improve all that much. --Chuck ------------------------------ Message: 6 Date: Fri, 09 Nov 2012 20:15:10 -0500 From: allison <ajp166 at verizon.net> To: General Discussion: On-Topic Posts Only <cctech at classiccmp.org> Subject: Re: P112 question - what can you run that uses 1MB of RAM? Message-ID: <509DAA9E.2010702 at verizon.net> Content-Type: text/plain; charset=ISO-8859-1; format=flowed On 11/09/2012 07:50 PM, ben wrote: > On 11/9/2012 5:30 PM, Alexandre Souza - Listas wrote: >>> Tell me what toner does a P112 use or is that used to color the 1MB of >>> ram?? >> >> Well, a 64-K CPM system will not print raster graphics with ease on >> a Laser Printer...You need more RAM! >> >> :oD >> >> Well, at least I tried :D >> > > Well if you could access the toner drum directly from the host cpu, I > am sure you could emulate a generic mono-spaced printer like a TTY in > 16K including the printer fonts. > Ben. > Actually no. To do that you need to be able to process the data rapidly enough to lay down dots as the drum rotates. The key thing for Laser printing (or any page printer) is the bit image need to exist before the paper moves or at least be preprocessed so that the raster image processor can fill a "band buffer" . The Video dot rate for a DEC LN01 (xerox 12PPM engine) was about 7mhz. The early character only version use a 12mhz 80186 with 8089 to keep up, The system IO to the host was handled by the 8089. Oddly the 8PPM LN03 Ricoh based engine was not much slower on the video clock. In the late 80s there were two lasers often those that were band buffer and generally limited to text and limited graphics and a higher priced version that had enough ram to buffer the page so the image could be composed before the paper was even moved. Actually I use my CP/M-80 system to lay down images on a real Laserjet4L. The price is that I need to run the system for a long time to create bit images to transmit. That takes hours even with ram and bit of buffering to hard disk. Even then the printer is doing much of the heavy lifting. The main issue was never ram but CPU cycles to process that data at acceptable rates for graphic images. It is the same issue as doing video graphics on a CRT or LCD. In that case you need enough ram to buffer the image for refresh and enough cpu to create and transfer images to that ram. So to simply move bytes to a 1MB page buffer it would take a Z80 at 4mhz around 8 seconds with no processing other than simple paging. That's too slow. Allison ------------------------------ Message: 7 Date: Fri, 9 Nov 2012 23:39:16 -0200 From: "Alexandre Souza - Listas" <pu1bzz.listas at gmail.com> To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Subject: Re: P112 question - what can you run that uses 1MB of RAM? Message-ID: <F8B4613B967146C7AEA1AC774F475533 at tababook> Content-Type: text/plain; format=flowed; charset="iso-8859-1"; reply-type=response > Actually no. To do that you need to be able to process the data rapidly > enough to lay down dots > as the drum rotates. > ... I love this list, I learn more and more every day :o) ------------------------------ Message: 8 Date: Fri, 09 Nov 2012 18:41:58 -0700 From: ben <bfranchuk at jetnet.ab.ca> To: cctalk at classiccmp.org Subject: Re: P112 question - what can you run that uses 1MB of RAM? Message-ID: <509DB0E6.6040001 at jetnet.ab.ca> Content-Type: text/plain; charset=ISO-8859-1; format=flowed On 11/9/2012 6:15 PM, allison wrote: > On 11/09/2012 07:50 PM, ben wrote: >> On 11/9/2012 5:30 PM, Alexandre Souza - Listas wrote: >>>> Tell me what toner does a P112 use or is that used to color the 1MB of >>>> ram?? >>> >>> Well, a 64-K CPM system will not print raster graphics with ease on >>> a Laser Printer...You need more RAM! >>> >>> :oD >>> >>> Well, at least I tried :D >>> >> >> Well if you could access the toner drum directly from the host cpu, I >> am sure you could emulate a generic mono-spaced printer like a TTY in >> 16K including the printer fonts. >> Ben. >> > > Actually no. To do that you need to be able to process the data rapidly > enough to lay down dots > as the drum rotates. That is a mechanical issue, not the idea of charging a drum with a laser. The old, cheaper hardware, faster software problem here. I don't think software has yet to solve the real problem of modern printers, is that text on the screen does NOT match the printed page, but that is off topic. > The key thing for Laser printing (or any page printer) is the bit image > need to exist before > the paper moves or at least be preprocessed so that the raster image > processor can fill > a "band buffer" . The Video dot rate for a DEC LN01 (xerox 12PPM > engine) was about 7mhz. > The early character only version use a 12mhz 80186 with 8089 to keep up, > The system IO > to the host was handled by the 8089. Oddly the 8PPM LN03 Ricoh based > engine was not much > slower on the video clock. In the late 80s there were two lasers often > those that were > band buffer and generally limited to text and limited graphics and a > higher priced version > that had enough ram to buffer the page so the image could be composed > before the paper > was even moved. I think history of Time-Sharing computers had a big impact here. You needed BIG fast page laser printer to share between users, so high speed printer was needed. Speed I don't think changed much over the years, but build quality HAS dropped. > Actually I use my CP/M-80 system to lay down images on a real > Laserjet4L. The price is that > I need to run the system for a long time to create bit images to > transmit. That takes hours > even with ram and bit of buffering to hard disk. Even then the printer > is doing much of the > heavy lifting. Custom software, or using a driver for a text processing package? > Allison > Ben. ------------------------------ Message: 9 Date: Fri, 9 Nov 2012 17:42:39 -0800 (PST) From: Cameron Kaiser <spectre at floodgap.com> To: cctalk at classiccmp.org Subject: Re: Disk drive manuals Message-ID: <201211100142.qAA1gdBn30408900 at floodgap.com> Content-Type: text/plain; charset=US-ASCII > > VERY little interest in books. And these are some of the better ones. > > WhatamI gonna do when I get down to the boxes of Sybex books and crappy > > books on WordPerfect? > > Build a fort and throw AOL CDs at people passing by? I like the floppies. They have those nice metal edges which make a ragged laceration if you get the right spin on 'em. -- ------------------------------------ personal: http://www.cameronkaiser.com/ -- Cameron Kaiser * Floodgap Systems * www.floodgap.com * ckaiser at floodgap.com -- Use foresight, and pessimism. ---------------------------------------------- ------------------------------ Message: 10 Date: Fri, 09 Nov 2012 21:20:32 -0500 From: Dave McGuire <mcguire at neurotica.com> To: General Discussion: On-Topic and Off-Topic Posts <cctalk at classiccmp.org> Subject: Laser printers, was Re: P112 question - what can you run that uses 1MB of RAM? Message-ID: <509DB9F0.2000206 at neurotica.com> Content-Type: text/plain; charset=ISO-8859-1 On 11/09/2012 08:41 PM, ben wrote: >> The key thing for Laser printing (or any page printer) is the bit image >> need to exist before >> the paper moves or at least be preprocessed so that the raster image >> processor can fill >> a "band buffer" . The Video dot rate for a DEC LN01 (xerox 12PPM >> engine) was about 7mhz. >> The early character only version use a 12mhz 80186 with 8089 to keep up, >> The system IO >> to the host was handled by the 8089. Oddly the 8PPM LN03 Ricoh based >> engine was not much >> slower on the video clock. In the late 80s there were two lasers often >> those that were >> band buffer and generally limited to text and limited graphics and a >> higher priced version >> that had enough ram to buffer the page so the image could be composed >> before the paper >> was even moved. > > I think history of Time-Sharing computers had a big impact here. You needed > BIG fast page laser printer to share between users, so high speed > printer was > needed. Speed I don't think changed much over the years, but build > quality HAS dropped. The build quality for consumer crapware has dropped, but if you buy that stuff, you get what you deserve. I had a DEC LN01 for a long time. It was a cantankerous beast but it was built like a tank. (I would love to have one again, if anyone has one lying around) Today's GOOD printers are built every bit as well. -Dave -- Dave McGuire, AK4HZ New Kensington, PA ------------------------------ Message: 11 Date: Fri, 09 Nov 2012 21:22:01 -0500 From: Dave McGuire <mcguire at neurotica.com> To: General Discussion: On-Topic and Off-Topic Posts <cctalk at classiccmp.org> Subject: PC-1/CX cartridge compatibility, was Re: P112 question - what can you run that uses 1MB of RAM? Message-ID: <509DBA49.6000708 at neurotica.com> Content-Type: text/plain; charset=ISO-8859-1 On 11/09/2012 06:00 PM, Fred Cisin wrote: >>> . . . and the lab staff at the college (25 years ago) found out that if >>> you fill the copier cartridge with printer toner, and then try to use it >>> in the copier, it produces a very poor quality reverse video image. > On Fri, 9 Nov 2012, Tony Duell wrote: >> I wonder whathte physical explanation for that is. > > The only explanation that I was given was: > "The company selling the refill kit (Torx driver, page of instructions, > bag of toner) sent the wrong toner." If memory serves, the drum coating was a completely different composition, it was even a different color. -Dave -- Dave McGuire, AK4HZ New Kensington, PA ------------------------------ Message: 12 Date: Fri, 9 Nov 2012 22:23:32 -0500 From: Ethan Dicks <ethan.dicks at gmail.com> To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Subject: Re: Wanted: Research Inc. Teleray terminals Message-ID: <CAALmimnXUWH=3g+dWLLZXRJcUk+jLjAhDx9JNd_9tRDzgP8fBQ at mail.gmail.com> Content-Type: text/plain; charset=ISO-8859-1 On Tue, Mar 13, 2012 at 4:37 PM, Ethan Dicks <ethan.dicks at gmail.com> wrote: > On Tue, Mar 13, 2012 at 2:24 PM, Eric Smith <eric at brouhaha.com> wrote: >> Richard wrote: >> I wrote about Teleray terminals: >> >>> I'm not sure which model, but it was reportedly 6502-based, and had some >>> kind of hacked firmware installed. > > Are there any photos of the PCBs out there? I have a small box of > what appear to be 6502-based terminal boards with lots of socketed > TTL. I do not know the vendor, but I can look for distinctive > markings. I never had the terminals. I just picked up a box of > "random" boards from a Hamfest some time ago. I found one of the boards tonight... It's really hard to read the hand-written scrawl on the label, but it certainly _could_ be 1061. The board has several DB25s on one edge, a prominent pair of 9114 SRAMs, what looks like a ROM in one corner (if 8316 is a part number for a 2K masked-programmed ROM), and I think it attaches to the video circuit with a two-row 0.1" ribbon cable of about 20 pins. There are a pair of side-toggle dip-switches on one edge for what looks like configuration settings. I did a bit of googling for the Teleray 1061 and about all I found out is that it was released in 1978 for around $1100 and there are some quirks with it enough to get mentioned in termcap comments. I did not find schematics or a proper manual. When I got it, I didn't know what it was and I got it for the socketed parts. If anyone is trying to fix a Teleray 1061, this could be your lucky day. The chips on it are worth a few dollars to me as spares but not a vast amount. I already have more dumb terminals that I could ever use, so I see no reason why I'd ever try to turn this board into a working terminal. If someone wants it, contact me off-list, otherwise, it'll stay in the parts bin for now. -ethan ------------------------------ Message: 13 Date: Fri, 09 Nov 2012 22:29:31 -0500 From: allison <ajp166 at verizon.net> To: General Discussion: On-Topic Posts Only <cctech at classiccmp.org> Subject: Re: P112 question - what can you run that uses 1MB of RAM? Message-ID: <509DCA1B.80209 at verizon.net> Content-Type: text/plain; charset=ISO-8859-1; format=flowed On 11/09/2012 08:41 PM, ben wrote: > On 11/9/2012 6:15 PM, allison wrote: >> On 11/09/2012 07:50 PM, ben wrote: >>> On 11/9/2012 5:30 PM, Alexandre Souza - Listas wrote: >>>>> Tell me what toner does a P112 use or is that used to color the >>>>> 1MB of >>>>> ram?? >>>> >>>> Well, a 64-K CPM system will not print raster graphics with >>>> ease on >>>> a Laser Printer...You need more RAM! >>>> >>>> :oD >>>> >>>> Well, at least I tried :D >>>> >>> >>> Well if you could access the toner drum directly from the host cpu, I >>> am sure you could emulate a generic mono-spaced printer like a TTY in >>> 16K including the printer fonts. >>> Ben. >>> >> >> Actually no. To do that you need to be able to process the data rapidly >> enough to lay down dots >> as the drum rotates. > > That is a mechanical issue, not the idea of charging a drum with a laser. You are not serious. The drum rotates slowly but each line of pixels is the length of the printed area (8") times the 300line per inch of the circumference and at 8PPM the average drum in small printers turned several times to print the whole 11 inchs. It's a raster scan system. Character printers could compose at a rate that was one cell height at a time so they use band buffers that often allowed typically 8 or 16 lines on the drum to be buffered at a time while the next lines were being processed. That scheme was good to a point but there were pathological cases that resulted in page to complex and imaging failures. often overstrikes were the likely culprit. For 8PPM that means moving 7920000 pixels in about 7.5 seconds without much dead time. You cannot stop the drum during the process. The laser does not charge the drum, it's used to discharge it, you can do it with LEDs as well but they were slow back then. The typical cycle is charge corona, writing (laser, or led raster scan), developing (toner) transfer(transfer corona) and cleaning (discharge corona sometimes), and doctoring (scrape the remaining toner off with a silicone rubber blade). Repeat as eneded. Polarities and what optical range this are done are dependent on if the drum was selenium coated or the organic photoreceptor that Cannon wrapped the cartridge around. > > The old, cheaper hardware, faster software problem here. I don't think > software has yet to solve the real problem of modern printers, > is that text on the screen does NOT match the printed page, but that > is off topic. That belongs back with one of the threads that had NAPLPS in it or maybe WYSIWYG when WYGINS is the reality. No one prints at under 100 DPI. Maybe now with very high resolution color displays we see what we get but then the best CRT I ran in color was 1280x1024 and .27 dot pitch (about 70-80dpi) which is still coarse by then 300DPI standard. That meant the tube could not display (even in B&W) what the printer could. New we have displays that are easily better than 300dpi but printers can do 600dpi and maybe more. That doesn't even cover color. > >> The key thing for Laser printing (or any page printer) is the bit image >> need to exist before >> the paper moves or at least be preprocessed so that the raster image >> processor can fill >> a "band buffer" . The Video dot rate for a DEC LN01 (xerox 12PPM >> engine) was about 7mhz. >> The early character only version use a 12mhz 80186 with 8089 to keep up, >> The system IO >> to the host was handled by the 8089. Oddly the 8PPM LN03 Ricoh based >> engine was not much >> slower on the video clock. In the late 80s there were two lasers often >> those that were >> band buffer and generally limited to text and limited graphics and a >> higher priced version >> that had enough ram to buffer the page so the image could be composed >> before the paper >> was even moved. > > I think history of Time-Sharing computers had a big impact here. You > needed > BIG fast page laser printer to share between users, so high speed > printer was > needed. Speed I don't think changed much over the years, but build > quality HAS dropped. > No build quality is better. We ( I was part of the team that developed the LN01, LN03 and LPS40 and LPS20 series at DEC) found that getting engines that could run at speed for 90 days without breakdown was a mechanical impossibility, we had customers prove it repeatedly. Back then the choices were Cannon, Ricoh, Xerox and in about that order of durability. Getting 200,000 to 300,000 pages between failure was the challenge and price was the other. To get to 40PPM (LPS40) a microVAX in the printer pushing a custom bitslice processor and a even more custom bitbliter so that a reasonably complex page set could be printed at 40PPM. That's what it took then. But the printer took postscript directly and printed up to B size pages with no page too complex issues. Now we have cheap fast cpus that can do that. This development was in the time frame of the "workstation" so the big VAX in the back was not always the factor. However the cost of even slow printers was high enough Then that shared resource was what the customer said. The price of a 8PPM printer then is far higher than a 20ppm color printer now. So the existence of timesharing was and is a red herring as big systems printers printed less graphics and small single users wanted all the printing capability.. Often the single user was a workstation of even then a PC with Hercules or early CGA video. >> Actually I use my CP/M-80 system to lay down images on a real >> Laserjet4L. The price is that >> I need to run the system for a long time to create bit images to >> transmit. That takes hours >> even with ram and bit of buffering to hard disk. Even then the printer >> is doing much of the >> heavy lifting. > Custom software, or using a driver for a text processing package? > Very custom, in assembler as excess overhead was painful and I had one of the uncommon 10mhz z80s. I did it mostly to prove a point but waiting hours per page was not practical. Doing hi res text only documents was easy and people were doing it tot he limits of what printers were available. Graphics just wanted more of everything by many orders of magnitude. Large ram was cost and speed issues but doable then. Code can overcome a lot of things but raw CPU speed was and is the prime solution (enter GPUs). FYI I still run that LJ4L as its durable and parallel interfaces to all my systems directly save for the latest PC with no IO save for USB ( PIC24 programmed for USB to parallel solution). Allison ------------------------------ Message: 14 Date: Fri, 9 Nov 2012 23:14:03 -0500 (EST) From: Mouse <mouse at Rodents-Montreal.ORG> To: cctalk at classiccmp.org Subject: Re: P112 question - what can you run that uses 1MB of RAM? Message-ID: <201211100414.XAA23825 at Sparkle.Rodents-Montreal.ORG> Content-Type: text/plain; charset="iso-8859-1" > I don't think software has yet to solve the real problem of modern > printers, is that text on the screen does NOT match the printed page, I don't think that - to the extent it _is_ a problem - _can_ be solved, as long as printers are higher-resolution than displays. (Not unless you artificially cripple the printout to match the display's resolution, at least.) > but that is off topic. Well, to a point. Some classic machines had display resolutions close to their printer resolutions, and the two _could_ match fairly well.... /~\ 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: Fri, 9 Nov 2012 20:36:21 -0800 (PST) From: Chris Tofu <rampaginggreenhulk at yahoo.com> To: "cctalk at classiccmp.org" <cctalk at classiccmp.org> Subject: Sam's Computerfacts 4851 Disk Drive Message-ID: <1352522181.91090.YahooMailNeo at web141104.mail.bf1.yahoo.com> Content-Type: text/plain; charset=us-ascii Need it. Anyone have it? Hook me up, ay/. ------------------------------ Message: 16 Date: Sat, 10 Nov 2012 10:39:21 +0000 From: Roger Pugh <rogpugh at mac.com> To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Subject: Re: P112 question - what can you run that uses 1MB of RAM? Message-ID: <509E2ED9.7040701 at mac.com> Content-Type: text/plain; CHARSET=US-ASCII; format=flowed On 10/11/2012 01:15, allison wrote: > On 11/09/2012 07:50 PM, ben wrote: >> >> >> Well if you could access the toner drum directly from the host cpu, I >> am sure you could emulate a generic mono-spaced printer like a TTY in >> 16K including the printer fonts. >> Ben. >> > There was a laserprinter available for i think the Atari ST (or later model) that did away with the processor and and used the atari. This cut the cost of the printer down to about 1000 pounds/dollars which was very cheap in its time, esp when compared to the apple laser.. I think it was a canon engine. This idea was used in the "windows only" laser printers where the ripping was done on the PC and the raw data sent to the printer via parallel port. Roger ------------------------------ Message: 17 Date: Sat, 10 Nov 2012 10:45:57 +0000 From: Roger Pugh <rogpugh at mac.com> To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Subject: Re: P112 question - what can you run that uses 1MB of RAM? Message-ID: <509E3065.3 at mac.com> Content-Type: text/plain; CHARSET=US-ASCII; format=flowed On 09/11/2012 19:45, Tony Duell wrote: >> . . . and the lab staff at the college (25 years ago) found out that if >> you fill the copier cartridge with printer toner, and then try to use it >> in the copier, it produces a very poor quality reverse video image. > I wonder whathte physical explanation for that is. > > -tony Pretty much every type of printer or copier uses different photoreceptor/toner/developer/carrier. As these all work on electrostatic priniples things such as charge, spacing between components, materials used in consumables, fusing temps are all different. 11 years working at Xerox, 12 more years on toner based digital printing... Roger ------------------------------ Message: 18 Date: Sat, 10 Nov 2012 11:18:19 +0000 From: Roger Pugh <rogpugh at mac.com> To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Subject: Re: P112 question - what can you run that uses 1MB of RAM? Message-ID: <509E37FB.7050505 at mac.com> Content-Type: text/plain; CHARSET=US-ASCII; format=flowed On 10/11/2012 01:15, allison wrote: > > Actually no. To do that you need to be able to process the data > rapidly enough to lay down dots > as the drum rotates. > > The key thing for Laser printing (or any page printer) is the bit > image need to exist before > the paper moves or at least be preprocessed so that the raster image > processor can fill > a "band buffer" . The Video dot rate for a DEC LN01 (xerox 12PPM > engine) was about 7mhz. > The early character only version use a 12mhz 80186 with 8089 to keep > up, The system IO > to the host was handled by the 8089. Oddly the 8PPM LN03 Ricoh based > engine was not much > slower on the video clock. In the late 80s there were two lasers > often those that were > band buffer and generally limited to text and limited graphics and a > higher priced version > that had enough ram to buffer the page so the image could be composed > before the paper > was even moved. I am a tech at a company called XEIKON. We manufacture color digital presses.. We print on rolls of paper of upto 50cm (20inch) at 1200DPI at speeds of 19 meters a min (about 60ft/min??). The presses are 5 colour on both sides.. Being roll fed presses we cant stop the press and wait for the data, LOTS of FPGA's are required to keep up the data stream. We are low end industrial, some of the expensive stuff like Kodaks Prosper of course need lots more.... Roger ------------------------------ Message: 19 Date: Sat, 10 Nov 2012 08:41:04 -0700 From: ben <bfranchuk at jetnet.ab.ca> To: cctalk at classiccmp.org Subject: Re: P112 question - what can you run that uses 1MB of RAM? Message-ID: <509E7590.3070405 at jetnet.ab.ca> Content-Type: text/plain; charset=ISO-8859-1; format=flowed On 11/9/2012 9:14 PM, Mouse wrote: >> I don't think software has yet to solve the real problem of modern >> printers, is that text on the screen does NOT match the printed page, > > I don't think that - to the extent it _is_ a problem - _can_ be solved, > as long as printers are higher-resolution than displays. (Not unless > you artificially cripple the printout to match the display's > resolution, at least.) > >> but that is off topic. > > Well, to a point. Some classic machines had display resolutions close > to their printer resolutions, and the two _could_ match fairly well.... Well not resolution issue, but font scaling. Windows seems to have lost TrueType somewhere on my machine. For what little C programing I do, fixed with fonts is what I want! Ben. PS. If people were happy with printer output, programs like TeX would not be here. ------------------------------ Message: 20 Date: Sat, 10 Nov 2012 17:50:02 +0100 From: Joost van de Griek <gyorpb at gmail.com> To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> Subject: Re: Networking a Macintosh SE/30 Message-ID: <802939B0-23D9-4074-99A4-29D786921F3C at gmail.com> Content-Type: text/plain; charset=us-ascii On 9 Nov 2012, at 23:41 , Schindler Patrik <poc at pocnet.net> wrote: > Am 09.11.2012 um 20:46 schrieb Tony Duell: > >>> I recall the same thing. >> And o yet again Apple did not adhere to an accepted standard.... > > Yes, because the monitor port on Macs already had been DB15-F, years before Macs with Onboard-Ethernet came to life. Apple was eager to keep setting up Macs as easy as possible. That includes distinct connectors for distinct functions. Size was also a consideration. Standard AUI connectors would ill fit on PowerBooks. .tsooJ -- There are perhaps 5% of the population that simply can't think. There are another 5% who can, and do. The remaining 90% can think, but don't. - Robert A. Heinlein -- Joost van de Griek <http://www.jvdg.net/> ------------------------------ Message: 21 Date: Sat, 10 Nov 2012 09:02:15 -0800 (PST) From: Jack Rubin <jack.rubin at ameritech.net> To: classiccomp list <cctalk at classiccmp.org>, Ed Groenenberg <quapla at xs4all.nl>, Philipp Hachtmann <hachti at hachti.de> Subject: Needed - rear brackets for BA23 mounting kit Message-ID: <1352566935.26136.YahooMailRC at web181304.mail.ne1.yahoo.com> Content-Type: text/plain; charset=us-ascii I'm racking a BA23 system into a corporate cabinet, using a BA23-AR mounting kit. I have the rails, front brackets and front cover but I'm lacking the rear brackets that secure the rails to the rear cabinet posts. Apparently some racks require these brackets and some don't. I have _three_ racking kits and none of them have the rear brackets. The brackets are short pieces of sheet metal, about 2" deep and 3" high. They are bent in a shallow U shape with an extended tab on one leg. Part numbers are 7428372-01 and 7428372-02 (left and right sides). They are shown in the BA23 Enclosure Maintenance manual, p 2-22. Please let me know if you can spare a pair (or more) of these items. Thank you, Jack ------------------------------ Message: 22 Date: Sat, 10 Nov 2012 18:43:57 +0100 From: Jochen Kunz <jkunz at unixag-kl.fh-kl.de> To: cctalk at classiccmp.org Subject: Re: To Metcal, or not to Metcal? Re: RepRapping. Was:Re: Restoring an Intel SDK-86 to "mostly like new" condition Message-ID: <20121110184357.52697ee564c856131a1e998a at unixag-kl.fh-kl.de> Content-Type: text/plain; charset=US-ASCII On Thu, 01 Nov 2012 16:27:25 -0400 Dave McGuire <mcguire at neurotica.com> wrote: > If you end up getting one, > I'd appreciate knowing what you think of it. The Oki MFR-2241 arrived today. I did some (de-) soldering on scrap PCBs in the last hours. It is amazing how the small 1 mm chisel cartridge heats up large through hole pins soldered to big ground planes. My old iron wolud not be able to do this, in no way. The OKi tips are thin and short. Wheres the heater + tip of my old iron is much thicker and longer. A touch up on a single SMD pin is much easier with the OKi, as the total length of the tip is much shorter. The "precision" tweezers aren't that precise as expected, but its OK. Wane desolder that SO8? Grab with the tweezers, wait a second or two and it comes off. Wane desolder that LM2676 (dPak)? Tin the leads for better heat conduction, grab with the tweezers, wait some more seconds (large ground plane under the chip) and it comes off... My setup cost me 830 EUR (approx. 1055US$) including some tips. The single PSU variant, MFR-1100, is 300 EUR (approx. 380US$). If you are in buissines for a new soldering iron and can spend that much money, get at least a MFR-1100. It is worth every single cent! I'll get a pair of larger tips for the tweezers later. These are expensive, around 100 EUR. But desoldering a DIP16 or the like will be a piece of cake with them. p.s. At unpacking I noticed that the pacel had been droped top down onto the flor. But the PSU survived without a single scratch. It is build out of cast aluminium. It is heavy and build like a tank. Its really industrial grade equipment. -- \end{Jochen} \ref{http://www.unixag-kl.fh-kl.de/~jkunz/} End of cctalk Digest, Vol 111, Issue 25 ***************************************

13 years, 9 months

3
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Unusual PC hardware and EPROMS for sale

by clemfm＠gmail.com

Hi Jim, I've seen your 386 card on ebay and whilst looking for drivers came across your post here: http://classiccmp.org/pipermail/cctech/2012-October/137378.html I'd take both the 386 and 68020 cards, however drivers are an issue as I can't seem to locate them on the web or newsgroups etc. Any luck finding them at your end? Regards Clem

13 years, 9 months

1
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P112 question - what can you run that uses 1MB of RAM?

by ethan.dicks＠gmail.com

Hi, All, I'm not joining in the kickstarter because I already have a P112 I purchased as a bare PCB and loose SMD parts in the previous round. I just uncovered it last night moving some things around and started tossing build-parts into a bin to put it together. I do happen to have a couple of 32-pin JEDEC 512K SRAMs (originally for an SBC6120 RAM disk PCB that got destroyed in the mail), so I _can_ fully populate it, but it got me wondering... what CP/M software is out there (except maybe a RAM disk) that can *use* 1MB? I have a bit of experience with 48K-64K CP/M machines (mostly Kaypro, but some others), because back when I was using it, that was how much memory 8-bitters had. I didn't mess with them much after 1985, so if there was still any development on that platform, I didn't see it. So why *does* the P112 have 1MB of RAM? What's the space over 64K good for? Cheers, -ethan

13 years, 9 months

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cctech Digest, Vol 111, Issue 21

by francois.dion＠gmail.com

> From: Tom publix <ittybittybytes at gmail.com> > I'll be putting some apollo stuff up and maybe some other stuff later this > week. Of course, mention your a member of the ccmp list and get some > freebies thrown in. I posted a few weeks back: I'm looking for a DN1000, or similar era (pre HP). Do you have anything like that? Fran?ois -- solarisdesktop.blogspot.com - raspberry-python.blogspot.com

13 years, 9 months

1
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4 bit cpu with 74xx

by francois.dion＠gmail.com

Someone built a 4 bit cpu using 74xx series chips: http://dangerousprototypes.com/2012/11/01/7400-competition-entry-fourbit-4-… Fran?ois -- solarisdesktop.blogspot.com - raspberry-python.blogspot.com

13 years, 9 months

1
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Networking a Macintosh SE/30

by dgriffi＠cs.csubak.edu

I think I have my head wrapped around the hardware tuneups that my Mac SE/30 requires. Moving on to the software. I've found install media and can get System 6 installed just fine. I can read and write HD floppies in my Linux box to move things in and out by sneakernet. I'm having a nasty time getting the ethernet board to work. I'm using an Asante MacCon PSD slot ethernet board. I downloaded the driver pack (still at Asante's website), made a driver install disk, and installed the driver stuff. This installs a driver for the board, ethertalk, and MacTCP. A diagnostic program on the disk says that the ethernet board is checking out fine, but I can't get the machine to talk or listen to the network. It's not at all clear how the MacTCP panel is supposed to be used. I've tried following http://www.applefool.com/se30/ and nothing works (though I can't get the Legacy Recover CD referred to there). Is there someone on this list who has done this before who can help me? -- David Griffith dgriffi at cs.csubak.edu A: Because it fouls the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting. Q: What is the most annoying thing in e-mail?

13 years, 9 months

25
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P112 kits now with parts

by dgriffi＠cs.csubak.edu

I did some number crunching and decided that I can indeed produce P112 kits with all the parts you'll need. See http://661.org/p112 or http://p112.feedle.net -- David Griffith dgriffi at cs.csubak.edu A: Because it fouls the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting. Q: What is the most annoying thing in e-mail?

13 years, 9 months

6
11
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Mac Stuff including HyperDrive Install

by rrissell＠gmail.com

Hi all, I'm Robyn and I'm a computer pack-rat... "Hi Robyn!" I'm doing some cleanup at the behest of the wife and have some vintage gear to get to a new home. Anything is available for pickup or for the price of shipping. (Pickup is preferred as vintage rotating media does not like un-parked shipping) 1. Hyperdrive 2.0 install (used - condition unknown - SEEMS to be all there with drive and install binder, driver for Mac available online) 2. Powerbook 160 installed in a Powerbook 140 case (greyscale, operational, Lead-Acid batteries in condition you'd expect). (MAY be able to find the original MB for PowerBook 140, was a display cable issue) 3. Mac HD-20 external HD for Mac Plus (operational with installed system) 4. Apple External SCSI CD drive (the big long one, includes HD-30 cable and terminators) 5. Copy of MacIntosh 68000 development system with disks 6. Copy of MacIntosh, Lost Treasures of Infocom 7. Printed copy of MacIntosh User's Guide + HyperCard Manual 8. Mac SCSI IOMEGA ZIP drive (with P/S and 3 new Mac Formatted ZIP disks) 9. Mac 800K external drive 10. Misc Mac Plus mice, keyboard, microphone and Phone-Net dongles 11. Floppies and other Misc as I find them. Robyn rrissell at gmail.com Lake Orion, MI

13 years, 9 months

1
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P112 kickstarter success

by dgriffi＠cs.csubak.edu

I just thought you'd all be interested to hear that my P112 Kickstarter project has been successfully funded. Now for the formalities of getting the money transferred to me and I can start buying parts. -- David Griffith dgriffi at cs.csubak.edu A: Because it fouls the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting. Q: What is the most annoying thing in e-mail?

13 years, 9 months

4
4
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Liberator: the untold story of the first British laptop

by lproven＠gmail.com

Part One: Taking over the typing pool By Tony Smith ? Get more from this author Posted in Hardware, 12th November 2012 12:01 GMT Feature In 1985, the UK home computer boom was over. Those computer manufacturers who had survived the sales wasteland that was Christmas 1984 quickly began to turn their attention away from the home users they had courted through the first half of the 1980s to the growing and potentially much more lucrative business market. The IBM PC had been launched four years earlier, in 1981. The 5150 and the clones it had inspired at Compaq and other computing firms new and established were winning an increasing share of the market. Some British manufacturers were content to follow the American lead and offer clones of their own. Others, however, believed they could win with systems of their own design. [...] http://www.theregister.co.uk/2012/11/12/the_secret_history_of_liberator_the… -- Liam Proven ? Profile: http://lproven.livejournal.com/profile Email: lproven at cix.co.uk ? GMail/G+/Twitter/Flickr/Facebook: lproven MSN: lproven at hotmail.com ? Skype/AIM/Yahoo/LinkedIn: liamproven Tel: +44 20-8685-0498 ? Cell: +44 7939-087884

13 years, 9 months

2
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NMOS 6502 internals

by jules.richardson99＠gmail.com

Just looking at some 6502 stuff, and the program counter notes at http://www.6502.org/tutorials/6502opcodes.html#PC say: "When the 6502 is ready for the next instruction it increments the program counter before fetching the instruction." ... which seems to imply that T-cycle 0 of an instruction first increments PC, then fetches the opcode from the memory location pointed to by PC. Which seems nuts, as it would also mean that either jump addresses would have to be off by 1, or at the start of T0 the CPU would have to determine what the _previous_ instruction was and then either increment PC or leave it alone accordingly. And all of this would have to happen before the address is placed on the address bus approximately 1/4 of the way into T0. I expect that what actually happens is that PC's contents are latched onto the address bus during the clock-low half of T0, R/W is asserted, and *then* PC is incremented. During the subsequent clock-high half of T0, the data bus will reflect the contents of [PC] as it was at the start of T0, and the PC increment will complete, so that at the end of T0 PC is pointing to either an operand byte for the current instruction, or the next instruction in the sequence (if the current instruction has no operands). Can anyone confirm? Although technically I suppose the text on the site would still be accurate, because the increment would actually have begun before the fetch had entirely completed, but the way it reads to me is that the opcode fetch happens at [PC+1], not [PC]... The text then goes on to say: "Once it has the op code, it increments the program counter by the length of the operand, if any." 6502 operands can be 1 or 2 bytes in length; the above seems to imply that for a 2-byte operand it would add 2 to PC - meaning it would have to fetch the first operand byte from PC-1 (and there's no PC-decrement logic in sight). I expect that what it really does is fetch the first byte from PC (which will have been incremented during the opcode fetch cycle), increments PC by 1, fetches the second byte, and increments PC again. Right? :-) Now, someone on the BBC micro list said they think that the 6502 might always do an operand byte fetch immediately after an opcode fetch, even if that instruction doesn't have any operand data - simply because it takes time for the CPU to decode the instruction. If it turns out that the instruction doesn't have an operand, it avoids doing the PC increment that would have been done if an operand were present (which means that at the next cycle, which the CPU will perform as an opcode fetch, the same byte is re-read from memory and interpreted as an instruction). Does anyone know if this "always read" is what happens? Or is the instruction decoding actually quick enough for the CPU to know by the end of T0 that there's no opcode data (and so it can reset its cycle counter and perform the next cycle as an opcode fetch)? cheers Jules

13 years, 9 months

4
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Differences between KFQSA submodels

by robert.jarratt＠ntlworld.com

I have come a across someone selling two different KFQSA boards. Is there a significant difference between a KFQSA-SG-RE and a KFQSA-SF-RE? Regards Rob

13 years, 9 months

1
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More Shameless classic parts trafficking

by ittybittybytes＠gmail.com

Hi everybody! More shameless classic parts trafficking. These go live on 11/12/ @ 2pm on epay 251183147655 DEC 11/04, dual sms floppy drives, Vt100 and rt-11 251183206220 DEC tm03 controller unit I'll be putting some apollo stuff up and maybe some other stuff later this week. Of course, mention your a member of the ccmp list and get some freebies thrown in. Cheers tom

13 years, 9 months

1
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Ohio Scientific Challenger 1P video

by terry＠webweavers.co.nz

Some of you may know of this item already but some may not, and might be interested. It's a short 10min YouTube video on one of the units in my collection: An OS Challenger 1P http://youtu.be/zrOYkKf5Y5k Terry Stewart (Tez)

13 years, 9 months

1
0
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ISO HP-UX 9.10 install CD

by shutchman＠gmail.com

Rik, I have an HP382 that I would like to resurrect. It has no SCSI drive in it, so if you still have ISO for HP-UX 9.10 available ( is it two CD's ?) , I can get the machine back into service. Regards, Hutch >* -----Oorspronkelijk bericht----- *>* Van: cctech-bounces at classiccmp.org <http://www.classiccmp.org/mailman/listinfo/cctech> [mailto:cctech-bounces at classiccmp.org <http://www.classiccmp.org/mailman/listinfo/cctech>] *>* Namens mls *>* Verzonden: donderdag 10 november 2011 6:30 *>* Aan: cctech at classiccmp.org <http://www.classiccmp.org/mailman/listinfo/cctech> *>* Onderwerp: Re: ISO HP-UX 9.10 install CD *>* *>* Rik, *>* *>* Back in 2009, you had posted on this thread that you could make HP-UX 9.10 *(HP >* 9000 series 300) ISO's available, but the thread, basically ended there. *I have >* been looking on and off for this software for some time for an HP 360 that *I >* have. *>* *>* Thanks, *>* Chris * Chris, I uploaded the iso's to several members of this list, if you have a ftp server you can have it. And maybe you don't know bout on the HP-museum site : http://hpmuseum.net/exhibit.php?swc=6 you can download a lot of software for the HP 9000/300 series -Rik

13 years, 9 months

2
1
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Really networking an SE/30

by dgriffi＠cs.csubak.edu

Let's try this again... Can I get a step-by-step on going from a fresh install of System 6 on a Macintosh SE/30 to being able to share files from a netatalk server? Here's what I have in inventory: System 6 install floppies Asante PSD ethernet board for SE/30 with install floppy MacTCP 2.0.6 MacTCP 2.1 MacTCP Ping 2.0.2 (doesn't recognize MacTCP 2.1) ZM Appleshare Workstation 3.5 Network Software Install 1.5.1 The ethernet board blinks when plugged into a network. That's as far as I can get. The interface for MacTCP is impenetrable. -- David Griffith dgriffi at cs.csubak.edu A: Because it fouls the order in which people normally read text. Q: Why is top-posting such a bad thing? A: Top-posting. Q: What is the most annoying thing in e-mail?

13 years, 9 months

5
5
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HP FAB needed

by jwest＠classiccmp.org

I need an HP 21MX/E FAB board, preferrably with E-FPP and E-DMI. If possible, would also like a blank FAB as a spare. Even if all you have is a blank board, I'd still be interested and I'd just burn the roms for it. Anyone have any of the above and willing to make some trade or $$? If so, drop me an email! J

13 years, 9 months

1
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mystry cards make offer or they going in trash :(

by tdk.knight＠gmail.com

dunno what to do with these http://img231.imageshack.us/img231/4628/cardsdn.jpg witch aparently came outa one of these http://img152.imageshack.us/img152/2431/machean.jpg witch was used for testing peoples ability to drive while drunk. anyone interested? otherwise the local hackerspace is going to send to the trash heap

13 years, 9 months

8
8
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Progress manuals

by BHuntsman＠mail2.cu-portland.edu

Anyone here familiar with the Progress database and 4GL? I have a pretty complete set of manuals and a partial set for v8 that I'd be willing to give for free minus postage... Anyone interested? -Ben

13 years, 9 months

1
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updated N8VEM PCB inventory list

by LYNCHAJ＠YAHOO.COM

Hi I've updated the N8VEM wiki PCB inventory list to correct several inaccuracies and correct quantities available. There are many PCBs remaining so if you are looking for some please contact me. Especially there are some recent PCBs for the ECB like the DSKY, Color VDU, MF/PIC, and DiskIO V3 which may be of interest to you. There are technical data for these PCBs on the N8VEM wiki including schematics, PCB layout, KiCAD EDA files, software, photos, etc. http://n8vem-sbc.pbworks.com/w/browse/#view=ViewFolder&param=Board%20Informa tion Using the N8VEM mini SBC V8 and/or the ECB backplane PCBs is sufficient to build your own system. There are sufficient 6x0x PCBs to build 6502, 6809, or 6802 CPU based computers. There are some mini-boards like AT2XTKBD for $5 each that allow connecting AT/PS/2 keyboards to PC/XT computers. Also there are ECB to Z80 socket adapters which allow the ECB boards to be connected to a Z80 socketed CPU rather than an ECB bus. Here is the link for your review: http://n8vem-sbc.pbworks.com/w/page/35044530/PCB%20Inventory The PCBs are $20 each plus $3 shipping in the US and $6 elsewhere. If you are considering getting one or more now is the time! I am stuck and need to move the remaining boards to free up the funds to do other board orders/reorders. I appreciate all the community support for the N8VEM home brew computing project. Thanks and have a nice day! Andrew Lynch PS, there is also one S-100 8088 CPU board PCB remaining.

13 years, 9 months

1
0
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Needed - rear brackets for BA23 mounting kit

by jack.rubin＠ameritech.net

I'm racking a BA23 system into a corporate cabinet, using a BA23-AR mounting kit. I have the rails, front brackets and front cover but I'm lacking the rear brackets that secure the rails to the rear cabinet posts. Apparently some racks require these brackets and some don't. I have _three_ racking kits and none of them have the rear brackets. The brackets are short pieces of sheet metal, about 2" deep and 3" high. They are bent in a shallow U shape with an extended tab on one leg. Part numbers are 7428372-01 and 7428372-02 (left and right sides). They are shown in the BA23 Enclosure Maintenance manual, p 2-22. Please let me know if you can spare a pair (or more) of these items. Thank you, Jack

13 years, 9 months

1
0
0 0

Looking for bracket for BA23 rack mount rails

by j＠ckrubin.us

I'm racking a BA23 system into a corporate cabinet, using a BA23-AR mounting kit. I have the rails, front brackets and front cover but I'm lacking the rear brackets that secure the rails to the rear cabinet posts. Apparently some racks require these brackets and some don't. I have _three_ racking kits and none of them have the rear brackets. The brackets are short pieces of sheet metal, about 2" deep and 3" high. They are bent in a shallow U shape with an extended tab on one leg. Part numbers are 7428372-01 and 7428372-02 (left and right sides). They are shown in the BA23 Enclosure Maintenance manual, p 2-22. Please let me know if you can spare a pair (or more) of these items. Thank you, Jack

13 years, 9 months

1
0
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What is a VT52-NE

by michael.99.thompson＠gmail.com

The RICM just received a VT52-NE donation. Any idea what the difference is between a VT52-AA and VT52-NE? -- Michael Thompson

13 years, 9 months

1
0
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Sam's Computerfacts 4851 Disk Drive

by rampaginggreenhulk＠yahoo.com

Need it. Anyone have it? Hook me up, ay/.

13 years, 9 months

1
0
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Wanted: Research Inc. Teleray terminals

by legalize＠xmission.com

I'm looking for more information on the Teleray series of terminals >from Research, Inc. (Note: Teleray is the name of the terminal line, not the name of the company! Although later they referred to themselves as the "Teleray Division" of Research, Inc.) In particular I'm looking for manuals and other documentation. If you have a Teleray terminal and you're looking to get rid of it, I would be interested in purchasing it from you. I know of the following models: Year Model 1971 Teleray 3300 1975 Teleray 3900 1976 Teleray 3811 <1977? Teleray 3541 <1977? Teleray 3741 1977 Teleray 3841 1977 Teleray 4041 1978 Teleray 1061 1979 Teleray 10 1979 Teleray 11 1979 Teleray 12 1980 Teleray 14 <1981? Teleray 100 1982 Teleray 16 1985 Teleray 20-7305 <1990? Teleray 30 Thanks! -- "The Direct3D Graphics Pipeline" -- DirectX 9 version available for download <http://legalizeadulthood.wordpress.com/the-direct3d-graphics-pipeline/> Legalize Adulthood! <http://legalizeadulthood.wordpress.com>

13 years, 9 months

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Disk drive manuals

by cisin＠xenosoft.com

I need to get rid of 60 boxes of stuff, and clear out my office. First up are some disk drive manuals. Pickup free in Berkeley, or pay priority mail, rounded up to the nearest multiple of $5 -- Grumpy Ol' Fred cisin at xenosoft.com (originals except where specified otherwise, although some of the originals appear to have been originally printed with a copier) Fujitsu "M2301B/M2302B : Microdisk Drives : CE Manual" xerox handwritten "LSI Version" MPI "Flexible disk drive Model 51/52 Product Manual" xerox copy Mitsubishi "Double-Sided Double Density Flexible Disk Drive M2894-63 : Standard Specifications" Seagate: (In generic binder): "ST506/412 OEM Manual" 36 pages 5.25" x 8.5" two holes drilled for fitting in generic 3 hole binder Feb 82 "ST506 Maintenance Manual" 53 pages 8.5 X 11 XEROGRAPHIC copy May 1982 (in another generic binder): Shugart: "8 Inch Floppy Disks Format Manual" December 1981 Stapled and drilled for binder, blue cover Business Reply cards - "Technical Publications Suggestion Form"! "The Headstrong Product Family" 10/79 11 x 25.5 double sided folded to 8.5X11 Pictures and "Comparative Detailed Specifications For All Shugart Disk Drives" "SA400 minifloppy(tm) Diskette Storage Drive OEM Manual" 8.5 X 11 Saddle stitched (and drilled) 2/77 "SA400 minifloppy(tm) Diskette Storage Drive OEM Manual" "Revision 5" 8.5 X 11 Saddle stitched (and drilled) 2/77 Sony: dozen loose xerox pages ""This chapter provides information on the standard disk drive fitted within the Apricot, the Sony OA-D31V . . ." (3.5" 70 track 600RPM, . . . Page 4,5 is "Interface Connection", with hand-written pin numbers added) Teac "Mini Flexible Disk Drive Specification : FD55A, FD55B, FD-55E, FD-55F, FD-55G" [what would the FD-55C and FD-55D be?] Xerographic copy. Comb (GNC) binding Weltec: "Product Reference Manual : 5 1/4 Inch Half High Flexible Disk Drive : Models M16-A/M16-R" 1984

13 years, 9 months

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ISO Advanced Digital S-100 Super Six EPROM

by aek＠bitsavers.org

I have recovered most of the Turbodos and CPM 3 files for the ADC Super Six On the CPM 3 disk were the sources for the boot EPROM, but there is an unreadable sector in the middle of it. Does anyone have this board? I bought one a while back, but it appears to have an OASIS boot rom on it. The files are up under http://bitsavers.org/bits/AdvancedDigitalCorp/super6_turbodos the zip file under /prom appears to be an OASIS disk image and eprom here is as much as I was able to recover --- title m'nprom Super Six Monitor Prom .z80 pbase: .phase 0f000h promsiz equ 800h sysbase equ 0000h zecho equ 0ee00h fdrdfg equ 0ee01h curadr equ 0ee02h hdflag equ 0ee04h hdsdhb equ 0ee05h stack equ 0ee64h page 60 ;ports sioad equ 00h sioac equ 01h siobd equ 02h siobc equ 03h fdce$ equ 0ch fdtrk equ 0dh fdsec equ 0eh fddat equ 0fh fddsd equ 14h baudrd equ 15 ++++++garbage for hd sdh reg LD (hdsdhb),A ; sector size 512, crc mode XOR A ;reset fpy read flag LD (fdrdfg),A LD SP,stac ++++++garbage getupc: IN A,(sioac) AND 1 ;char ready? JR Z,getupc ;no, loop gitupc: IN A,(sioad) AND 7fh ;mask CP 'a' ;lt 'a'? RET C ;yes, exit CP '{' ;lt '{'? RET NC ;yes, exit AND 5fh ;upcase RET gecho: LD A,0ffh LD (zecho),A CALL getupc PUSH AF LD A,(zecho) AND A JR NZ,xbarf POP AF RET xbarf: POP AF CP ' ' ;ctrl char? CALL NC,putc ;no, echo RET page strout: PUSH AF PUSH HL stroop: LD A,(HL) OR A ;end of string JR Z,strend ;yes, jump CALL putc INC HL JR stroop strend: POP HL POP AF RET crlf: PUSH HL LD HL,crlfst CALL strout POP HL RET abort?: CALL cetupc CP esc ;escape code? JP Z,exec ;yes, jump -- abort CP 8 ;??? RET NC JR abort? space: PUSH AF LD A,' ' JR hspit page hexit: PUSH AF RRCA RRCA RRCA RRCA CALL hex1 POP AF hex1: PUSH AF AND 0fh ADD A,90h DAA ADC A,40h DAA hspit: CALL putc POP AF RET hexhl: PUSH AF LD A,H CALL hexit LD A,L CALL hexit POP AF RET page getnum: CALL gecho CP ',' RET Z ;end of # CP ' ' RET Z ;end of # CP '0' RET C ;woops CP ':' JP C,isnum ;0 - 9 CP 'A' RET C ;woops CP 'G' CCF RET C ;woops SUB 007H ;convert A - F isnum: SUB 030H ;decode RET page get2n: PUSH BC PUSH DE LD C,0 LD E,0 nloop: CALL getnum ;number in? JR NC,nisnum ;yes, jump CP cr ;cr? SCF JR NZ,bad2n ;no, jump LD A,E OR A ;any input? JR NZ,got2n ;yes, jump SCF LD A,cr ;let's pretend it was a cr JR bad2n nisnum: CP 16 ;is it a number? JR NC,got2n ;no, jump INC E ;inc it LD B,A ;save # LD A,C ;get old ADD A,A ;x 2 ADD A,A ;x 4 ADD A,A ;x 8 ADD A,A ;x 16 ADD A,B ;add in new # LD C,A ; -- and all to c JP nloop got2n: LD A,C ;return in a bad2n: POP DE POP BC RET page get4n: PUSH DE LD HL,0 SCF CCF PUSH AF n4loop: CALL getnum JR NC,got4n CP cr JR NZ,bad4n CALL space JR good4n bad4n: POP AF SCF POP DE RET got4n: CP 16 JR NC,good4n ADD HL,HL ADD HL,HL ADD HL,HL ADD HL,HL LD E,A LD D,0 ADD HL,DE JR n4loop good4n: POP AF POP DE RET page tstmem: LD (HL),A CP (HL) RET Z PUSH HL LD HL,memerr CALL strout POP HL CALL hexhl JP exec page ;--------------------------------------- ; Load function -- Display & Substitute ;--------------------------------------- load: CALL get4n ;get the start adr JP NC,lodlop oops: LD HL,woops JP woopsy lodlop: LD (curadr),HL dot: CALL crlf ;display the current adr LD HL,(curadr) CALL hexhl CALL space LD A,(HL) CALL hexit CALL space CALL get2n ;get the response JP C,lodcmd CALL tstmem lodinc: LD HL,(curadr) ;inc the current adr INC HL JP lodlop lodcmd: CP cr ;cr terminates JP Z,exec CP ' ' ;space means inc JP Z,lodinc CP '-' ;dash means dec JP NZ,oops dash: LD HL,(curadr) ;dec the current adr DEC HL JP lodlop page ;----------- ; Negate DE ;----------- negde: PUSH AF LD A,D CPL LD D,A LD A,E CPL LD E,A INC DE POP AF RET page ;----------------------- ; Dump memory to screen ;----------------------- dump: CALL get4de CALL get4de CALL negde dloop: CALL crlf CALL hexhl CALL space dloop1: CALL space LD A,(HL) CALL hexit CALL inchlc CALL abortc CP 013H ;??? worthless CALL Z,abort? LD A,L AND 0fh JP Z,dloop JP dloop1 page ;------------------ ; Go to an address ;------------------ go: CALL get4de EX DE,HL JP (HL) ;----------------------- ; Display the help menu ;----------------------- help: LD HL,helpst CALL strout JP exec inchlc: PUSH HL ;cp hl to de -- abort if c, else inc hl ADD HL,DE JP C,exec POP HL INC HL RET page ;------------------- ; Move memory block ;------------------- move: CALL get4de PUSH DE CALL get4de CALL get4de EX DE,HL EX (SP),HL CALL negde mloop: LD A,(HL) EX (SP),HL CALL tstmem INC HL EX (SP),HL CALL inchlc CALL abortc JP mloop page ;------------- ; Fill memory ;------------- fill: CALL get4de CALL get4de CALL negde CALL get2n JP C,oops floop: CALL tstmem CALL inchlc JP floop get4de: CALL get4n JP C,oops EX DE,HL RET abortc: CALL cetupc ;abort on any char OR A JP NZ,exec RET ;--------------- ; In & Out port ;--------------- iport: CALL get2n JP C,oops LD C,A IN A,(C) CALL crlf CALL hexit JP exec oport: CALL get2n JP C,oops LD C,A CALL get2n JP C,oops OUT (C),A JP exec page ;---------------------------------- ; Boot -- floppy or hard disk exec ;---------------------------------- boot: CALL abortc CALL fddset CALL hdset fdlop: CALL abortc CALL fdrdy? ;ready to try a read? CALL NC,fdread ;yes, go try CALL hdread JR fdlop page ;------------- ; Floppy junk ;------------- fddset: XOR A OUT (fddsd),A ;8" sd CALL fdrdy? ;is the drive ready? JP C,try8dd ;no, jump LD HL,try8dd JR fdhome try8dd: LD A,8 ;8" dd OUT (fddsd),A CALL fdrdy? ;ready now? JP C,try5dd ;no, jump LD HL,try5dd JR fdhome try5dd: LD A,018H ;5.25' dd OUT (fddsd),A CALL fdrdy? ;ready now? RET C ;no, exit LD HL,fderrs fdhome: LD A,0fh ;restore command OUT (fdcmd),A CALL delay IN A,(fddsd) ;force wait for int IN A,(fdcmd) AND 018H ;seek or crc error? RET Z ;no, exit JP (HL) delay: LD A,3 delop: EX (SP),HL EX (SP),HL DEC A JR NZ,delop RET page ;------------- ; Ready check ;------------- fdrdy?: IN A,(fdcmd) RLA ;ready? RET C ;no, return LD HL,3E8H idxlop: IN A,(fdcmd) AND 2 ;index found? JR Z,idxfnd ;no, jump DEC HL LD A,L OR H ;timeout? JR NZ,idxlop ;no, jump SCF RET idxfnd: LD B,10 idxlp1: LD HL,3E80H idxlp2: IN A,(fdcmd) AND 2 ;index found? RET NZ ;yes, exit DEC HL LD A,L OR H ;timeout? JR NZ,idxlp2 ;no, loop DJNZ idxlp1 SCF RET page ;------------------ ; Floppy disk read ;------------------ fdread: LD A,0FFH ;indicate attempt to read LD (fdrdfg),A LD A,1 ;set sector 1 OUT (fdsec),A LD A,08CH ;read sector OUT (fdcmd),A LD HL,sysbase LD C,fddat fdrdlp: IN A,(fddsd) ;wait for data or int OR A ;data? JP P,fdrddn ;no, jump INI ;get a byte JP fdrdlp fdrddn: CALL delay IN A,(fdcmd) OR A ;errors? JP Z,sysbase ;no, jump to booted input fderrs: PUSH AF LD A,(fdrdfg) OR A ;have we tried to read? JR Z,getdsk ;no, jump fderr: LD HL,fderms ;floppy disk err msg out CALL strout POP AF CALL hexit JP exec getdsk: POP AF LD HL,dskask CALL strout LD A,0FFH ;reset floppy read flag LD (fdrdfg),A JP exec page ;------------------------ ; Hard disk test & setup ;------------------------ hdset: XOR A ;zap hd regs OUT (hdsec),A OUT (hdcylo),A OUT (hdcyhi),A INC A ;set for 1 sector OUT (hdscnt),A IN A,(hdsec) ;now, test for hdc1001 ctrlr LD B,A IN A,(hdcylo) OR B LD B,A IN A,(hdcyhi) OR B LD (hdflag),A ; -- and save result LD A,01EH ;do a restore OUT (hdcmd),A RET page ;---------------- ; Hard disk read ;---------------- hdread: LD A,(hdflag) OR A ;is a controller out there? RET NZ ;no, exit IN A,(hdcmd) AND 050H CP 050H ;ready & seek complete? RET NZ ;no, exit IN A,(hdcmd) OR A ;busy? RET M ;yes, exit hdrtry: LD A,(hdsdhb) ;set sdh OUT (hdsdh),A LD A,020H ;read sector cmd OUT (hdcmd),A hdbzlp: IN A,(hdcmd) OR A ;busy? JP M,hdbzlp ;yes, loop AND 1 ;error? JR NZ,hdbadx ;yes, jump LD HL,0 LD BC,8000h + hddat INIR JP sysbase page hdbadx: LD A,(hdsdhb) CP 20h ;sector size = 512? JP NZ,hderr ;no, go croak XOR A ;try 256 byte sector LD (hdsdhb),A LD A,1fh ;restore again OUT (hdcmd),A hdbzl1: IN A,(hdcmd) RL A ;busy? JR C,hdbzl1 ;yes, loop JR hdrtry hderr: LD HL,hdrms CALL strout IN A,(hderg) CALL hexit JP exec page signon: db cr,lf,' > ADVANCED DIGITAL CORP.' db cr,lf,' SUPER SIX Running',cr,lf,0 signom: db ' Monitor Version 3.4' db cr,lf,' June - 1983' db cr,lf,' Press "H" for help' db cr,lf,'Attempting to boot.......' db cr,lf,'Press any key to abort boot.',cr,lf,0 prompt: db cr,lf,' >',0 undef: db ' UNDEFINED',0 woops: db ' ????',0 memerr: db cr,cr,lf,'MEMORY WRITE ERROR AT ',0 ;??? db 'ERROR',0 db ' PAUSE',0 db '? ',0 db ' ABORTED',0 db 'STARTING ADDRESS:',0 db 'ENDING ADDRESS:',0 fderms: db cr,lf,'FDC COLD BOOT ERROR CODE ',0 dskask: db cr,lf,'INSERT DISK & PRESS B TO BOOT',0 hdrms: db cr,lf,'HDC1001 COLD BOOT ERROR CODE ',0 crlfst: db cr,lf,0 helpst: db cr,lf,'MONITOR COMMANDS :' db cr,lf,'B = Load disk boot loader' db cr,lf,'DSSSS,QQQQ = Dump memory in hex from S to Q' db cr,lf,'FSSSS,QQQQ,BB = Fill memory from S to Q with B' db cr,lf,'GAAAA = Go to address A' db cr,lf,'IPP = Input from port P' db cr,lf,'LAAAA = Load memory starting at A' db cr,lf,'MSSSS,QQQQ,DDDD = Move starting at S to Q to Addr. D' db cr,lf,'OPP,DD = Output data D to port P' db cr,lf,'ESC will terminate any command',0 page ;-------------------------- ; Function code jump table ;-------------------------- cmdtbl: db 'L' dw load db cr dw exec db '.' dw dot db '-' dw dash db 'D' dw dump db 'I' dw iport db 'O' dw oport db 'F' dw fill db 'G' dw go db 'M' dw move db 'H' dw help db 'B' dw boot db 0ffh .dephase ds promsiz-($-pbase),0ffh end

13 years, 9 months

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Disk drive manuals

by feldman.r＠comcast.net

>From: Fred Cisin < cisin at xenosoft.com > > >VERY little interest in books. And these are some of the better ones. >WhatamI gonna do when I get down to the boxes of Sybex books and crappy >books on WordPerfect? I remember reading about a public project (NOT Google) that is attempting to preserve discarded books. I think they were located in Oregon, but I could easily be wrong about that. You send them the books and they ship them to China to be scanned. They get the books back and then store the physical copy in containers (with nitrogen instead of air?) in a mine or cave somewhere . Sorry that I don't have more specifics about them, but some Googling should turn them up. Bob

13 years, 9 months

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Disk drive manuals

by jonas＠otter.se

On Thu, 8 Nov 2012 15:53:12 -0800 (PST), Fred Cisin <cisin at xenosoft.com> wrote: > VERY little interest in books. And these are some of the better ones. > WhatamI gonna do when I get down to the boxes of Sybex books and crappy > books on WordPerfect? > Boil them and serve them to your college administrators, saying it is Swedish lutefisk?

13 years, 9 months

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WTB: turbochannel graphics cards, DEC 3000 AXP

by mark＠wickensonline.co.uk

Hi guys, Does anyone have any turbochannel graphics cards for the DEC 3000 AXP series? Ideally 24 bit, 8 bit would be fine, I need two or three. Regards, Mark.

13 years, 9 months

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Remaining available S-100 board PCBs

by LYNCHAJ＠YAHOO.COM

Hi! There are four (4) S-100 SMB, eight (8) S-100 bus extenders, and two (2) S-100 8088 CPU board PCBs left. Here are the latest descriptions of these boards: http://s100computers.com/My%20System%20Pages/SMB%20Board/S100%20Bus%20SMB.ht m http://s100computers.com/My%20System%20Pages/Extender%20Board/Extender%20Boa rd.htm http://s100computers.com/My%20System%20Pages/8088%20Board/8088%20CPU%20Board .htm The PCBs are $20 each plus $3 shipping in the US and $6 elsewhere. The S-100 SMB is a dual PCB so it is $40. Please send a PayPal to LYNCHAJ at YAHOO.COM and I will send your boards right away! The S-100 SMB and S-100 bus extender boards are specialty items and it will be a long time before these are reordered. If you are considering getting one or more now is the time! I am stuck and need to move the remaining boards to free up the funds to do other board orders/reorders. Thanks and have a nice day! Andrew Lynch

13 years, 9 months

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The New Apple II User's Guide

by alhartman＠yahoo.com

My computer's "On Switch" was my ex's "Off Switch." After 20 years of divorce she is now an E-Mail, and FB junkie and understands why I liked going on various BBS services in the late 80's. Al

13 years, 9 months

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IRIX remote display

by saquinn624＠aol.com

Richard writes: >Do you mean the client is running on IRIX and the server is on anothermachine? Yes >I don't see any >reason why any X client on one machine wouldn'tdisplay properly on another machine, so long as >the X client wasn'tassuming the presence of extensions and was properly respecting theVisual >of the target display. I figured that as well, and I haven't had any problems with Solaris, HP-UX, AIX, etc. doing remote displays to a different "brand" X-server, nor have I had any problems with IRIX -> IRIX, but mix up IRIX and others and I have had trouble. Linux is probably the worst - X.org server. I'll log in just fine, be working fine, no artifacts, then boom X reset and I'm back at the XDM prompt. This works with different versions of Linux (mostly Debian), different graphics in the X-server machine (ATi (shudder) and nVidia), different net cables, different switches, different SGI boxes. Mac System 10.4 is missing parts - the first thing I noticed after login was that the toolchest was missing the text on about half of the selections. Going back and forth over it will cause some more to show up for a while. Solaris 10/ Xsun (FFB) had red rectangular artifacts. Only tried that one once. No one else has a problem with IRIX clients on other X-servers?

13 years, 9 months

3
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COBOL manuals for Tops-10/TOPS-20???

by tshoppa＠wmata.com

> I need to deal with modifying some COBOL code in the Tops-10 and TOPS-20 > usage reporting software, and have no manuals. Yeah, COBOL is COBOL, but > the details (what is "DISPLAY-7" as opposed to "DISPLAY-9"?) are important. > There are no COBOL manuals on the PDP10 portion of Bitsavers at the moment. I wanted to post earlier but was afraid my decades old human memory had some bit rot! And I never did much COBOL to begin with. DISPLAY-6 is SIXBIT DISPLAY-7 is ASCII DISPLAY-9 is EBCDIC RECORDING MODE takes precedence over USAGE. Page 3-21 http://bitsavers.trailing-edge.com/pdf/dec/pdp10/TOPS10_softwareNotebooks/v…

13 years, 9 months

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Warehouse sale, Kerrville, Texas, December 1 (?)

by mtapley＠swri.edu

All, A decade or so back I visited a warehouse in Kerrville with a *lot* of classic computer gear. That warehouse is now closing, and Cindy, the proprietor, is selling off the collection. Her description of what is there includes: At 9:15 -0600 11/6/12, Cindy Croxton Electronics Plus wrote: >I would like to arrange that on Saturday a group of interested people could >come up and go through all the antique stuff. There is Kaypro, HP, Apple, >Commodore, Radio Shack, DEC Rainbow, etc. I will have space available that >everyone can plug in what they want to, and test it before they leave with >it. I have a limited amt of software that can be used on each type of >machine. > >Also cases and cases of software and documentation for System 370, old IBM. ... >The Apple stuff alone occupies a room upstairs abt 10x10x6 feet stuffed full >of old computers, monitors, printers, software, disk and floppy drives, etc. >I have every Apple on the Wikipedia except the Apple I. I even have a Lisa! >Mac classic, all-in-ones, 128, 512, LCII, LCIII, and lots of others, >including old Mac servers. Prob have extra memory if needed, and lots of >spare parts for the Apple IIs. > >Also have IBM Microchannel machines and lots of spares. On the phone with me this morning, she added that there are waist-high Data General servers with 4 Pentium Pro's each, a lot of Sun equipment, IBM 5160's including one in the original box with matching printers and monitors, Apple posters and sales equipment >from the Apple II era and forward, and much Apple software and boxes. Contact information and location are: Cindy Croxton Electronics Plus 1613 Water Street Kerrville, TX 78028 (830)792-3400 phone (830)792-3404 fax AOL IM elcpls the email address sales at elecplus.com also works. There is a website at http://www.elecshopper.com/ , but that website is not by any means complete in its coverage of what is there nor does it give an indication of the scale of the place. Cindy indicated that she would like to set up a classic-computer shopper's day on a Saturday, when the shop is not open to the general public. I'll recommend we coordinate on December 1, but she said she could meet by appointment at the warehouse on a different Saturday if needed, except that November 17 won't work. She said she had 10 workbenches with power, and was amenable to having people bring in diagnostic software to test equipment before they buy it. There is no loading dock, so if you acquire a Data General server or the like you'll have to figure out how to get it up into your pickup truck. She prefers cash or check. I still have a pile of pictures I took there which also don't give a true indication of the scale of the place, but will forward on request and they do show a lot of gear. I'm planning to make the December 1 trip, I think; hopefully I'll see you there. No connection except as a satisfied customer; questions welcome on-list or off, but I recommend on. -- - 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.

13 years, 9 months

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An ACI-90 / WD900 joins the stable.

by jdr_use＠bluewin.ch

Never believed I would be able to get one, but an ACI-90 has joined my small collection. For those who don't know it, is is a box with 2 8" floppies , power supply and a WD-900 Pascal Microengine board. No disk or manuals sadly. It should feel right at home next to the Lilith.. The WD-9000 chipset contains these : CP2151-B, CP2161B-02, CP2171-B10, CP2171-B12 and CP2171A-13, I understand different combinations are around. Bad side is of course that I have now reserved all free time for the next months : finding/creating boot disks, tracing schematic, reading ROMS and creating the emulator... Jos

13 years, 9 months

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COBOL manuals for Tops-10/TOPS-20???

by RichA＠vulcan.com

I need to deal with modifying some COBOL code in the Tops-10 and TOPS-20 usage reporting software, and have no manuals. Yeah, COBOL is COBOL, but the details (what is "DISPLAY-7" as opposed to "DISPLAY-9"?) are important. There are no COBOL manuals on the PDP10 portion of Bitsavers at the moment. Thanks, Rich Rich Alderson Vintage Computing Sr. Systems Engineer Vulcan, Inc. 505 5th Avenue S, Suite 900 Seattle, WA 98104 mailto:RichA at vulcan.com mailto:RichA at LivingComputerMuseum.org (206) 342-2239 (206) 465-2916 cell http://www.LivingComputerMuseum.org/

13 years, 9 months

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Apple IIc?

by barythrin＠gmail.com

Sorta clich? response but check your local craigslist. They're really not too uncommon and shouldn't run you too much. IIc may be a bit less common than its big brother but still not at all rare or out of reach.

13 years, 9 months

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Warehouse sale, Kerrville, Texas, December 1 (?)

by mtapley＠swri.edu

All, in response to a couple of requests, I have posted the photos I took in 2001; see the URL below, and let me know if it doesn't work. Please be aware that these are more than a decade out of date; it may be that none of the pictured equipment is still available, or most of it may be there; I don't know. Also, please be aware that this is just me posting; Electronics Plus hasn't endorsed or requested this, and I'll remove it immediately if they so desire. >Reply-To: Mark Tapley <mtapley at swri.edu> >Date: Wed, 7 Nov 2012 15:37:20 +0000 >Subject: Mark Tapley shared an album with you. > >You are invited to view Mark Tapley's photo album: ><https://picasaweb.google.com/lh/sredir?uname=103229486827589783951&target=A…>Electronics >Plus, March 2001 ><https://picasaweb.google.com/lh/sredir?uname=103229486827589783951&target=A…> >Electronics Plus, March 2001 >Kerrville, Texas, Electronics Plus - posted >Nov 7, 2012 >by Mark Tapley >Photos from the turn of the centurly in Kerrville ><https://picasaweb.google.com/lh/sredir?uname=103229486827589783951&target=A…>View >Album ><https://picasaweb.google.com/lh/sredir?uname=103229486827589783951&target=A…>Play >slideshow > -- - 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.

13 years, 9 months

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