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

by LYNCHAJ＠YAHOO.COM

Hi!? There have been several requests for another round of the S-100 Bus Extender PCBs.? Since these are essential tools for any S-100 builder I think we should get some more.? We need 20 PCB pre-orders so I can make a manufacturing order. The S-100 Bus Extender board is ready for ?production?.? If you would like to get one or more of these very useful boards please do the new usual pre-order.? I will set aside your board so you get them as soon as they arrive. Here is a link to S100computers.com website with information on the updated S-100 Bus Extender board: http://www.s100computers.com/My%20System%20Pages/Extender%20Board/Extender%2 0Board.htm The PCBs will be $20 each as per the usual arrangement.? Shipping in the US is $3 for a single PCB and $2 for each additional PCB.? Shipping internationally is $10 for a single PCB and $3 for each additional PCB.? This is for the bare basics USPS first class postage with no tracking or insurance.? The builder assumes all risk of delivery as per usual arrangement. Please send a PayPal to LYNCHAJ at YAHOO.COM with the subject ?S-100 Bus Extender? and I will reserve your board(s).? Thanks and have a nice day! Andrew Lynch PS,? We are still doing another order for S-100 Buffered Prototyping board bus and have 6 boards in the queue.? If you would like one or more S-100 Buffered Prototyping boards please let me know.? The pre-order arrangements are identical to the others but please send them in a separate email so I can keep things straight on this end.

12 years, 8 months

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cctalk Digest, Vol 122, Issue 20 - Re: Barrys collection - the free stuff

by johnwallace4＠yahoo.co.uk

One day I'll learn to type; till then I will just apologise from time to time for sending half composed messages (and using a rubbish email client). Sorry! > -- Vax 1000 BA-23 Note that it's possible (probable?) that this is an rtVAX 1000, with a KA620 CPU board, and possibly no mass storage in the BA23. The KA620 is closely related to the KA630 (MicroVAX II) with one small but significant difference. The rtVAX family (not to be confusbed with the ftVAX) were sold to run DEC's distributed realtime OS, VAXELN, which could be network booted (or boot from disk). Some rtVAXes had slightly cut down memory management relative to ordinary VAXes, a "feature" which meant they'd never run VMS. Some folk won't mind the distinction, others might. VAXELN is an interesting piece of software in its own right but doesn't seem to be in the VMS Hobbyist program. Regards John

12 years, 8 months

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Fwd: [rescue] What to do with old Sun h/w?

by kurt.m.nowak＠gmail.com

Just forwarding... email original sender if interested. -------- Original Message -------- Subject: [rescue] What to do with old Sun h/w? Date: Wed, 09 Oct 2013 14:16:13 -0400 From: David Strom <dstrom at fastmail.net> Reply-To: The Rescue List <rescue at sunhelp.org> To: rescue at sunhelp.org I have a couple of Sparc 10s, maybe a 20, and external components, disks, tape drives (4mm, 8mm, QIC) that I need to dispose of from my personal collection of stuff. Our county has an electronics recycling drop off in about 10 days. Some Sbus cards, maybe a CPU, maybe a graphics card or two (PCI). Is there anyone in the Northern New Jersey area that would want this stuff for free? Pretty close to NYC, too. -- David Strom -- David Strom dstrom at fastmail.net _______________________________________________ rescue list - http://www.sunhelp.org/mailman/listinfo/rescue

12 years, 8 months

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Don Lancaster TTL Cookbook

by cclist＠sydex.com

Found a scanned copy online if anyone wants it: ftp://apollo.ssl.berkeley.edu/pub/cinema/04.%20Science/TTL%20Cookbook_06722… --Chuck

12 years, 8 months

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Barrys collection - the free stuff ( cctalk Digest, Vol 122, Issue 20)

by johnwallace4＠yahoo.co.uk

End of cctalk Digest, Vol 122, Issue 20 ***************************************

12 years, 8 months

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DEC Legacy Reminder - next weekend in Windermere, UK

by mark＠wickensonline.co.uk

Hi folks, Just a quick note to remind you that DEC Legacy 2013 is next weekend in Sunny (well sometimes!) Windermere, UK. I've updated the website with some more details of the presentations. Registrations are up on last year and given the heritage of the attendees I think we are all set for a great weekend. More information on the website: http://wickensonline.co.uk/declegacy Regards, Mark. -- http://www.wickensonline.co.uk http://hecnet.eu http://declegacy.org.uk http://retrochallenge.net https://twitter.com/#!/%40urbancamo

12 years, 8 months

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[N8VEM-S100:1971] S-100 80286 CPU PCBs have arrived!

by monahan＠vitasoft.org

Hi All, I will do a detailed write-up on constructing/testing this board when mine arrives. For those wanting to get an early start, a reminder, be sure to use a mica insulator between the 5V regulator and the board (or as a last resort a pair of small washers) . You do not want the traces in that areaon the front of the board touching the heat sink/ground. John John Monahan Ph.D e-mail: <mailto:monahan at vitasoft.org> monahan at vitasoft.org Text: <mailto:monahan at txt.att.net> monahan at txt.att.net From: n8vem-s100 at googlegroups.com [mailto:n8vem-s100 at googlegroups.com] On Behalf Of Andrew Lynch Sent: Sunday, October 13, 2013 6:31 AM To: n8vem-s100 at googlegroups.com Cc: cctalk at classiccmp.org Subject: [N8VEM-S100:1971] S-100 80286 CPU PCBs have arrived! Hi! The S-100 80286 CPU PCBs have arrived and I have shipped all the pre-ordered boards. The boards look great and the order has been a huge success! There are only two (2) boards left in case anyone wants one. I am really looking forward to the first reports of the S-100 80286 CPU boards "in the wild". This is going to be fun! I hope you enjoy your new CPU boards! Thanks and have a nice day! Andrew Lynch -- You received this message because you are subscribed to the Google Groups "N8VEM-S100" group. To unsubscribe from this group and stop receiving emails from it, send an email to n8vem-s100+unsubscribe at googlegroups.com. For more options, visit https://groups.google.com/groups/opt_out.

12 years, 8 months

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Barrys collection - the free stuff

by gary_neier＠yahoo.com

Hi All, ?Here is a list of free stuff from Barry's collection in Scotts Valley CA. ? I can meet you at the storage locker to pick it up. ?Or I can ship it if you cover the cost + something nominal for my time. -- Vax 1000 BA-23 -- 8 inch drive empty case with power supply -- Alloy DS100 Tape controller -- CCS S-100 Mainframe -- Centronics 353-1 -- IDS 125 Printer -- HP 7470 Plotter -- blank 8 inch floppies -- CD-2P Dual 8 inch drive chassis (might contain drives) Here are the "nearly free" items -- $20 - Xerox 1810 with Xerox 1845 disk unit "like new in box" -- $20 - Quantum 2080 harddisk with power supply -- $20 - Perkin Elmer Fox 1100 terminal - picture here:?http://www.columbia.edu/cu/computinghistory/fox1100.html -- $50 - Ann Arbor Ambassador terminal -- $50 - Gould K115 -?http://www.flickr.com/photos/gneier/sets/72157636494937466/ -- $50 - Gould K101 -?http://www.flickr.com/photos/gneier/sets/72157636495280073/

12 years, 8 months

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test message, please disregard

by LYNCHAJ＠YAHOO.COM

Hi This is a test message. Please disregard. Thanks! Andrew Lynch

12 years, 8 months

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ROM Image wanted, Superbrain

by jbensadon＠hotmail.com

Hi, I've got a Superbrain computer from Intertec that I'm trying to get running. The EPROM is blank (all FF's). I'm guessing over time it erased itself. I tested my eprom programmer with another 2716 just to be sure. Recently, I got access to another Superbrain, but it's EPROM was also bad, (all 00's). I'm hoping someone, somewhere, can make an image of this Eprom and send it??? Many Thanks, Josh Bensadon, Toronto, Canada

12 years, 8 months

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OT: Help with BEST competition

by mtapley＠swri.edu

All, Two of my kids are competing in this years BEST robotics design competition. Rules are here, FYI: http://www.bestinc.org/b_game_rules.php The competition is to build a robot which will assemble logic element stand-ins into logic gates and CPU elements (not actual ones, everything is sylized so that the robots can be made out of easily available macroscopic materials). However, an important element of the competition, on which the older child is working, is to write a "business case" for such a robot - do market research, in essence, and convince investors why such a device is useful. When I heard "market research" I immediately thought of this group as probably the best concentration of knowledge anywhere on why anyone would want to build custom-configured logic circuits as opposed to using a generic general-purpose microcontroller for the same task. I *think* I know part of the answer. My thoughts are generally: 1) Anything custom-configured to the task at hand can have number of logic gates, number of transistors, etc. optimized to that task. Register length can match precision of sensors, etc. Thus, *all else being equal*[1], minimum resources (power, heat generated, etc.) will be required by the resulting system. 2) Anything custom-configured can have performance optimized - state machines or flip-flops (vs. combinatorial logic) implemented only when necessary, path lengths shortened where possible, etc. to provide minimum feedback-control times. 3) Anything custom-configured can have minimum complexity. For mission-critical applications, this means it becomes exponentially easier to "prove" correct control system functionality and to predict performance even in the case of SEU or other problems; general-purpose microcontrollers are much more difficult to validate in this sense. I would love comments, and particularly references (places to look on internet, conference proceedings, etc.) from anybody who would care to provide them. Replies on the list to the extent you think they are on-topic, or direct to me and my cc'd daughter if off topic. Thanks in advance! [1] I know microcontrollers have the advantage of gate size *far* below what any discrete components currently can achieve; that's the caveat I'm trying to leave with the "all else" comment. I assume part of the business case has to be that a robot assembling logic designs can be made arbitrarily small so that gate feature size for the discrete logic can compete with gate feature size for large-scale IC's. -- - 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.

12 years, 8 months

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AT&T Sceptre

by kylevowen＠gmail.com

Hi all, I found a Sceptre set-top box without the keyboard a while back, and finally got around to checking it out. Just for curiosity's sake, I took it apart and photographed the insides. Pictures for the equally curious: http://imgur.com/a/cibFD Has anyone managed to get a Sceptre or other Videotex box to do anything besides keeping papers from blowing away in the 21st century? I have an Asterisk server and analog card that I was thinking might could send some data to the box to display some messages, etc. How feasible would this be? Is there protocol documentation available? Also, is this box basically useless without the wireless keyboard? Does anyone have a spare keyboard? Thanks, Kyle

12 years, 8 months

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Odd escape sequences?

by webmaster＠supervinx.com

Hi! Do you remember the Z80 based machine I spoke about, some time ago? Well, I connect to with Putty, and I noticed that the first character of the output is missing. I'll explain better with an example. I see ogon please instead of Logon please: So I captured the whole session and saw these sequences.. ---------------------------------------------------------------------- > ^G^[*^BLogon please: SYSTEM > > ^[* > ----------------------------------------------------------------------- >SHOW VERSION ^[*Module Version Date Priv Serial ACCOUNT 6.0 26JUN84 5 60-01005 ARCHIVE 6.1 22OCT84 2 60-01005 ASSIGN 6.0 26JUN84 0 60-01005 ATTACH 6.1 18OCT84 0 60-01005 BACKUP 6.0 26JUN84 3 60-01005 BASIC 6.1 24OCT84 2 60-01005 COPYFILE 6.0 26JUN84 1 60-01005 CREATE 6.0 26JUN84 1 60-01005 DESPOOL 6.1 03DEC84 0 0-00000 ERASE 6.0 26JUN84 1 60-01005 FILELIST 6.0 26JUN84 0 60-01005 FORCE 6.0 01JUL84 5 60-01005 INITDISK 6.0 26JUN84 3 60-01005 LIST 6.0 26JUN84 0 60-01005 LOGOFF 6.1 12OCT84 0 60-01005 LOGON 6.0 01JUL84 0 60-01005 MOVE 6.0 01APR85 3 60-01005 PASSWORD 6.0 26JUN84 0 60-01005 RENAME 6.1 14OCT84 1 60-01005 REPAIR 6.0 26JUN84 3 60-01005 RESTORE 6.0 26JUN84 3 60-01005 RUN 6.1 14OCT84 0 60-01005 ^[=7 ^^H^[*Module Version Date Priv Serial RUN2 6.1 14OCT84 0 60-01005 SCRIPT 6.0 26JUN84 1 60-01005 SET 6.1 29OCT84 1 60-01005 SHOW 6.1 11OCT84 0 60-01005 SPOOLER 6.1 03DEC84 0 60-01005 START 6.1 18OCT84 2 60-01005 STATE 6.0 26JUN84 0 60-01005 STOP 6.0 26JUN84 5 60-01005 TEXTEDIT 5.6 27DEC82 1 60-01005 VERIFY 6.0 26JUN84 3 60-01005 RC = 0, 13:29:51, ET = 0.26 minutes. ----------------------------------------------------------------------- ^[=*6^GATTENZIONE FARE VERIFICA ARCHIVI ^[=,5^GATTENZIONE FARE COPIA DEGLI ARCHIVI ^[=-7^GATTENZIONE OGGI COPIA ^[G2OBBLIGATA^[G0 ^[=7 ^[t^[=7>^[G2PREMERE UN TASTO^[G0^[=7 ^[t^[*^[G8L' Italica $ ^[=*(^[(Eccedenza ---------------------------^[=*N^[( 45159088 ^[=+(^[(Movimento Sinistri ------------------^[=+N^[( 0 ^[=,(^[(Saldo -------------------------------^[=,N^[( 45159088 ^[=.(^[(C/C Direzione + Cassa ---------------^[=.N^[( 41498121 ^[=7 ^[t^[=7.^[G2^GATTENZIONE ECCEDENZA SUPERIORE AL CONTO CORRENTE^[G0^[=7 ^[t$ ----------------------------------------------------------------------- The ^[* sequence is obscure, to me, ESC *, together with the ^[=7 ^^H^[* and the above ones. With putty, they cancel the first char or scramble the output. Other sequences are well accepted. Can you help me? Thanks! -- Vincenzo (aka Supervinx) --==ooOoo==-- My computer collection: http://www.supervinx.com/Retrocomputer --==ooOoo==-- You can reach me at: www.supervinx.com www.facebook.com/supervinx http://www.youtube.com/user/supervinx http://www.myspace.com/supervinx

12 years, 8 months

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For Sale: DEC LK-401 Keyboards

by kurt.m.nowak＠gmail.com

Hi folks, I have a lot of 5 Digital LK401 keyboards. I am asking $20 each plus shipping from 91942 (San Diego). Contact me off the list if you're interested. Thanks! -Kurt

12 years, 8 months

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Tandberg TDV2324/TOS II Manual

by lindberg.jacob＠gmail.com

Hello, Does anyone have an electronic copy of the manual for the Norwegian Tandberg TDV2324 and/or it's OS, called "TOS II"? I'm getting it to boot TOS II from 8" drive, however i have no idea how to get it to boot CP/M. Best regards Jacob Lindberg

12 years, 8 months

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DEC Terminals, free P/U in CA

by dm561＠torfree.net

>From the VC forum: I have several old terminals that have been wrapped in plastic for the last 3 decades or so that I'd like to give away: (a) DEC VT-131 (b) DEC VT-241, and (c) a Wyse 350. All three have keyboards and original manuals, and all were in excellent shape when I put them away. I live in Moreno Valley, CA, and I would prefer to have someone pick up whatever they want if possible. If anyone is interested I'm willing to plug any or all in to make sure they still power up and take them to UPS, but boxing and shipping is on you. I don't know if this is the right place to list these, but I thought I'd try to see if anyone wanted them before I just recycled them. Seemed a shame to just scrap them, but I need the space. (No email addy; PM on VCF if interested). m

12 years, 8 months

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Looking for some Sun 2 parts

by earl＠baugh.org

After coming very close to getting a couple of parts for my Sun 2/120 and striking out yet again, I figured I'd ping to see if anyone has any other leads. I'm looking for a Sun 2/120 front plate (side plates would be great too, I have some that need restoration, but if I could find some ones in better shape, would save some time). I was chatting with someone in CA who had a empty 2/120 chassis, which also would fit the bill... I have a chassis but wouldn't mind have one to "build up from"... I would like to get one and get it really cleaned to start from, without tearing out everything >from the existing one that is still "together"... would make it easier to work from, since I have 2 back-planes and 2 power supplies... (and it's not clear if both sets are good...) Also a Sun 2 Keyboard and Sun 2 mouse. Drop me a mail off line if you have a lead, or have some to trade/sell. Earl

12 years, 8 months

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fcc forums help

by tdk.knight＠gmail.com

Wheres one find the nessary Fcc id for these stupid forums and what do they go under Shiping 2 pallet of stuff pdp8a Ge searies six plc and work master rlo2 drives platers H11 h10 h89's H77 Ibm p70's ps2 50 spare parts cars.manuals software And i am not seeing any fcc numbers on this stuff ?????? Wheres one find this info?

12 years, 8 months

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Nexon Computer Museum

by pet4032＠gmail.com

Just happened to find this: http://en.wikipedia.org/wiki/Nexon_Computer_Museum It is located on Jeju Island, South Korea. The wikipedia page says they have an Apple I on display that they purchased from Sotheby's for $374,000. Cheers, Bryan

12 years, 8 months

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mitsubishi mp 286l

by leskovez＠mail.ru

Hello! You still have laptop?mitsubishi mp 286l?

12 years, 8 months

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Spectrum +2B ULA - ha ha ha

by alexandre.tabajara＠gmail.com

Ok, I know it is impossible, but anyway... "Is it possible to find an ULA chip for my blown Spectrum +2B?" Thanks :o) Alexandre --- http://www.radiotron.com.br A solu??o em desenvolvimento e engenharia reversa

12 years, 8 months

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"Gold recovery" sellers on eBay

by nf6x＠nf6x.net

What's with all of the sellers on eBay in the Vintage Computing section selling ICs and boards for "gold recovery"? Are they just scamming ignorant folks, or do they actually believe they're selling something of value? Do people believe that if they buy some PCB for $25 shipped, there will be more than $25 worth of gold on it after they manage to etch away everything but the gold with acid? Am I missing something, or are those sales about as honest as the typical 419 email scam? TANSTAAFL... Sorry, but I just had to rant there for a moment. -- Mark J. Blair, NF6X <nf6x at nf6x.net> http://www.nf6x.net/

12 years, 8 months

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DEC Terminals

by snaggs＠mac.com

I'd love a minty VT131, only reason Im fussy on condition is it will cost me $150 in shipping. Feel free to contact my email. Regards, Daniel. Sent from my iPad

12 years, 8 months

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Wanted: Amiga of some sort

by slandon110＠gmail.com

Hey all im looking for an Amiga of some sort, Can be a 500, 600, 1000, 1200, 2000,3000 or a 4000, can pick up in Ohio, Indiana and michigan. Let me know what you got Thanks Steve

12 years, 8 months

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Manchester(UK) Vintage and Retro Computing Enthusiasts

by dave.g4ugm＠gmail.com

Folks, We have a "meeting" arranged for this Friday 11th October @19:00 in the Manchester MadLab (http://madlab.org.uk/). All welcome. I will bring along my Nexys Spartan 3E FPGA board and demonstrate running the IBM 1130 Emulator. Dave.

12 years, 8 months

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Moving

by ggs＠shiresoft.com

I have to say that it's been an adventure. I'm almost done moving everything (computer wise...the house is next summer). Just took a load of 12 pallets up to the new place (I could have fit 14 in the truck but I had figured the truck from previous moves would only hold 10-12 and I'd only made 12 ready). I put some picture up of how everything looks after I unloaded the truck. The link is here (there's before and after pictures of the shop...just click on "Almost Moved" for the "after"): http://www.shiresoft.com/new-shop/Shiresoft/Almost_moved.html. I didn't take pictures of the "basement" where I had moved all of the totes a few weeks ago to make enough space for everything else because there's not too much to see other than about 100 totes. ;-) BTW, there's still stuff to be claimed before it goes to be scrapped including a lot of uVAXen (including a VAX 4000/700 I just unearthed today), uPDP-11s, 11/34s, 11/44s, a Sun 4/110, DEC Rainbows and a DEC Robin that I "discovered". The final weekend for picking this stuff up is 10/19 and 10/20. I'm taking the final load up on 10/26. Anything after that will be scrapped the following week (there's some exceptions for folks that are picking up/shipping some *big* stuff...they know who they are and don't have to panic). So if anyone wants anything let me know (no I won't ship anything...it defeats the purpose). TTFN - Guy

12 years, 8 months

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Kent State U computer inventory list

by cclist＠sydex.com

I ran across the following web page detailing the computing gear in use at Kent State University circa 1992. Some may find it interesting in the variety of gear: http://dept.kent.edu/uct/niss/nwape.html --Chuck

12 years, 9 months

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DEC VT-180 (Robin) (was Re: Moving)

by ethan.dicks＠gmail.com

On Mon, Oct 7, 2013 at 1:44 PM, Paul Anderson <useddec at gmail.com> wrote: > And yes, Ethan, I should have robin buried here along with several sets of > unopened software. I hate to see Guy scrap his, but it's too far for me to travel. When you dig yours out, let me know. I have friends in your area that I see several times a year that may be willing to pick up something that small (i.e. - that fits in the back seat - I'm sure anything in a rack is out of the question ;-) -ethan

12 years, 9 months

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SGI power supply schematics

by jon＠jonworld.com

I'm asking here, but will also bug Nekochan. Does anyone have schematics for the 240V->48DCV power supplies used by SGI in the rackmount Challenge XL and Origin systems? Danke -- -Jon Jonathan Katz, Indianapolis, IN.

12 years, 9 months

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Moving

by wlewisiii＠gmail.com

On 10/07/13 12:00, cctalk-request at classiccmp.org wrote: > Send cctalk mailing list submissions to > > Date: Sun, 6 Oct 2013 20:44:11 -0700 > From: Guy Sotomayor <ggs at shiresoft.com> > To: "General Discussion: On-Topic and Off-Topic Posts" > > (including a VAX 4000/700 I just unearthed today), I'm going to sit here and cry in my coffee since here is Hayward WI and there's no way to get there to collect that or anything else... :( Someday... William -- Live like you will never die, love like you've never been hurt, dance like no-one is watching. Alex White

12 years, 9 months

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Bubbles in VR201 faceplate

by paulkoning＠comcast.net

Gentlepeople, I have a VR201 (DEC Pro b/w monitor). It's been stored for a while. I just noticed that the faceplate has spots on it which don't clean off. More precisely, it looks like they are spots (bubbles?) *inside* the faceplate coating material. Any suggestions for how to treat this? paul

12 years, 9 months

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VCF East 9.1 = three-day event!

by evan＠snarc.net

Cctalk'ers, We already announced that VCF East "9.1"* is scheduled for April 5-6 at our museum in NJ next year. Now, we're announcing a third day! Friday, April 4 shall be "VCF East University". This will be a separate-admission event, same venue, at which we'll offer eight how-to workshops. There will be a hardware track and a software track. Come to the show and learn vintage computing skills from friendly experts. Details TBA. - Evan * It's 9.1 next year because Hurricane Sandy's after-effects caused us to cancel 9.0 last spring.

12 years, 9 months

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Fortune 32:16

by wrm＠retro.co.za

/delurk Hi all Do we have a Fortune 32:16 guru on the list? I've searched the archive and there's some stuff back in 2005 but that's about all I could find. Reason I'm asking is I unearthed the disks I copied off the university's Fortune 32:16 back in 1987/88, so I ImageDisked them. But there's pretty much no information on the hardware out there. Seems to be an interesting system, Z-80 running I/O, TTL memory manager, some kind of PAL playing copy protection... would be a pity if the details have been lost. W

12 years, 9 months

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old CAD workstation used for MEDUSA

by a13stesk＠student.his.se

Hello In the mid 80ies i was at school in Sk?vde Sweden. At that time that school had a PRIME 9955 system together with the normal serial terminals and also a fair number of specialist CAD workstations. The CAD stations was used for MEDUSA and another Electronic CAD package (we did PCB designs in that system.) I have two questions (because of a foggy memory): what was the maker of the work stations (or who could they be) ? and could someone name a number of pcb design programs for PrimOS ?

12 years, 9 months

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Mac 128K board repaired

by ethan.dicks＠gmail.com

Hi, All, For those that might be following the saga (and especially for those who chimed in along the way), I wanted to let people know that the board is running and boots Finder 1.1g off of suitably-formatted floppies (single-sided MFS). Despite numerous reports on multiple Mac discussion lists, et al., A Sad Mac with 6 bits set was corrected by replacing the 6 indicated chips. I can only imagine that the numerous reported failures that were unrepaired by replacing the RAMs were problems with bus buffers or some other thing that dragged down multiple bits on the data bus, or perhaps traces/vias damaged in the repair pricess. In my case, thankfully, it was no more than diagnosing and replacing a few chips (FWIW, I was able to verify that in advance by dry-fitting known good DRAMs on top of the bad ones and observing a positive change in the power-on diagnostics). So that's done, and now it's time to clean and lube the eject mechanism on an old 400K drive, then turn my attention to getting an Imagewriter I working again. I'm sure I can make a cable but with any luck, I already have an official Apple cable in my box of old Mac parts. Not sure about ribbons, though. Thanks again for all the suggestions. -ethan

12 years, 9 months

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Moving sale

by ggs17＠me.com

As you may remember, I'm moving. This has required a significant amount of work to get stuff packed. I've been making some progress. I have dug out enough to be able to list *some* of what I have that I don't want to move. Please make offers. I'll consider anything "reasonable" (I'm not expecting eBay prices but I'm not going to give the stuff away either). I'm trying not to ship stuff because frankly I don't have the time. If you're not in the area and really want something it'll probably be best if you can get someone who's local (San Jose/San Fransisco California area) to pick it up and get it shipped. My plan is to get everything moved before October 1. After that anything that I'm not moving will go to Weirdstuff. I've put a lot of stuff on pallets for my ease of handling. You'll get a "deal" if you take the pallet as-is (ie take the lot). I have a lot of small stuff. Sorry but I can't search for little items. If you come by I'll let you search through the various piles of stuff but I won't. OK, so much for the "fine print". Here's a *partial* list: MicroVAX 3100 (30's, 40s, 80s and 90s) VaxStation 3100 (I think) DEC Rainbow 100 (in it's original box...somewhat worse for wear) Printer for DEC Rainbow Documentation for DEC Rainbow HP Apollo (don't know more than that) 12-15 RL01/RL02 drives. I don't know the condition. Some look good, others, well not. 4+ RK05 drives. Most of these don't work (from my notes) but shouldn't require a lot 5-6 Fujitsu Eagle drives. Don't know the condition but they look OK. 2-3 MicroVAX in BA23s Sun IPX (not sure how many) Sun IPC (not sure how many) Sun SS10 (1 or 2) Sun SS20 (1 or 2) Sun Ultra 5 Sun Ultra 10 DEC PDP-8/a SWTPC (no idea what's in the case) 4-5 DECWriter IIIs 2-3 KSR/ASR33s of various types and conditions Micro PDP11s in various cases. Some are in BA23s, some are OEM cases 3-4 MicroVAXs in BA123 3-4 ADM3a. Don't know the condition 4-5 VT100. Don't know how well they work 4+ PDP-11 11/34s (a couple are still in racks) 2+ PDP-11 11/44s a few PDP-11 11/84s (I know one is complete. I'm not sure what state the others are) 1-2 PDP-11 11/24s 1-2 PDP-11 11/05 or 11/10 (these are minimal) a few BA11F chassis (some empty some full of backplanes full of cards) TU80 tape drive TU81+ tape drive 3-4 Kennedy tape drives (some in racks) 5-6 RX01/RX02 dual floppy drives Contact me off-list. TTFN - Guy

12 years, 9 months

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Selenar Graphics II LA-36

by rickb＠bensene.com

I have powered up the LA36 with the Selenar Graphics board in it, and >from the information kindly obtained by list members (Byte Magazine article about the Selenar Graphics II), I have been able to verify that the unit indeed works. The graphics mode works, and all of the other features documented in the Byte article seem to function properly. The issue that I've found is that only 5 of the 7 print pins are working. Numbered with the top pin as number 1, it is the 3rd and 6th pins that are either not firing at all, or are jammed such that they can't come forward enough to make an impression. I can't find a service manual for this unit online anywhere, so I'm wondering what the best approach to diagnosis would be. I do have schematics, but since the unit has a Selenar Graphics II logic board, I'm not sure how well the schematics will help. Since the Selenar board replaces the stock logic board, I can safely assume that it retains the pinouts for the connectors that go from it to the power board that has the drivers for the solenoids in the printhead. So, I can probably scope out the drivers to see if they are firing on pin 3 and 6 when printing characters that require those dots, which I will do when I have time, but I'm wondering the next step would be if I find that there are firing pulses coming out of the pin drivers for pin 3 and pin 6. Obviously, if I find that the pulses aren't being generated, then I have to dig into the solenoid drivers for these pins and figure out what has failed and fix it. If I find that the solenoid drivers are OK, then what should be done next? Would it be to remove the printhead and do what Tony suggested, which would be to use a bench power supply (I have a good Tektronix bench supply does truly does deliver 0.00V) to try to fire the solenoids to see if they are gummed up? If so, how do I go about removing the printhead to do this? Just from looking at things, it looks like I would have to do a lot of disassembly to get the printhead out of there. Does the printhead come off separately from the carriage that it rides on, or do I have to remove the whole carriage assembly? Any guidance would be most appreciated. Thanks, Rick Bensene

12 years, 9 months

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Core Memory Failure Modes

by derschjo＠gmail.com

Hi all -- Last night I finally got the Imlac working to the point where I can run programs more advanced than a light chaser, and I'm using my newfound abilities to take a closer look at the functionality of the system's core memory. This is a Dataram "DR-101" system (Docs are on Bitsavers now), 8KW of 16-bit words and when I got the Imlac all the socketed ICs on the control PCB were extremely corroded. I outright replaced the corroded ICs (most of them were too far gone to deal with and the rest were marginal) cleaned the sockets, and at this point it's fairly functional. I whipped up a simple program to walk through memory and test every location (by writing / reading back all possible 16-bit values at every location). The results are mostly positive, aside from a small addressing issue (the upper two MSBs of the address from the CPU are apparently being ignored by the memory's addressing logic so I get 2K repeated over and over again). What I did find was that most of the memory I'm currently able to test (the repeated 2K) tests out fine. However, there are a few addresses in the 210-240 address range that either have dead bits or behave sporadically, and there's a single bit near the top of memory that's stuck off. The failures are 100% consistent (even the sporadic failures always show up at the same addresses) and reproduce identically if the system is "cold" or has had time to warm up for awhile. I'm not sure whether to suspect calibration/alignment issues here -- I would expect failures to be more widespread or have repeating patterns of some sort if the system was out of alignment. I'm tending to think that the core plane may actually be damaged in places, which would be very unfortunate. However, I don't have a lot of experience in diagnosing core memory failures; so far I've been fortunate -- the systems I have that use core memory have not had issues with the memory. Anyone with more experience here have any suggestions? Thanks as always (and yes, I'm still working on the 8/L current loop stuff I've just been distracted because apparently I have no attention span and thanks again for all the help there :)), - Josh

12 years, 9 months

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Forsale: TeleVideo Items.

by me＠GarrettMeiers.com

I found homes for some of my TeleVideo systems at VCFMW, but still have a lot left. In getting the ones I sold ready, I ended up finding quite a few systems that were not functioning. So, I will be testing every system this week to find out the ones that have issues, and will know what I have that works/doesn't work. If anyone is interested either in working systems, or possibly systems with issues, let me know. Some of you have expressed interest already, but please feel free to let me know again if you are interested. I'd love to find buyers locally on CCTALK, but need to get these out of the garage, so Craigslist, and then eBay, are my next steps. Here is a list of what I have currently: https://docs.google.com/spreadsheet/pub?key=0Ahk4_RQTUNcYdFpTOFQ3RFdMQ0FocE… Thanks, Garrett Meiers www.linkedin.com/in/theunixguy

12 years, 9 months

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OLD SGI hardware...

by jon＠jonworld.com

Sorry to keep pestering the list. I have an idea... Is there any really old original SGI hardware out there? I'm talking the pre-MIPS stuff, that was used as a graphical front-end to VAXen and other items (IRIS 1000) or even IRIS 2000 equipment. -- -Jon Jonathan Katz, Indianapolis, IN.

12 years, 9 months

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old CAD workstation used for MEDUSA

by stefan.skoglund＠agj.net

Hello In the mid 80ies i was at school in Sk?vde Sweden. At that time that school had a PRIME 9955 system together with the normal serial terminals and also a fair number of specialist CAD workstations. The CAD stations was used for MEDUSA and another Electronic CAD package (we did PCB designs in that system.) I have two questions (because of a foggy memory): what was the maker of the work stations (or who could they be) ? and could someone name a number of pcb design programs for PrimOS ?

12 years, 9 months

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For Sale: Commodore 128s in Flint Michigan

by slandon110＠gmail.com

2 Complete 128 Machines with 1902 Monitors Each with a 1571 that needs work One has a Ketec Command Center And Mice with each $200 for the lot. Would prefer Local Pickup since these are a pain to ship Steve

12 years, 9 months

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Reviving elderly BBC Micros

by lproven＠gmail.com

So I have recently been given half a dozen Acorns - one Model A, 4 Model B+ with 64K and one 128K B+. I'm going to donate the Model A, at least, to TNMOC at Bletchley, but I'd like to keep at least one for myself. The thing is, whereas I wouldn't just turn on a 1980s business computer with multiple moving parts, the donations chap at TNMOC has put The Fear into me by sternly warning me Not To Turn Any Of Them On, because They Will Blow Up. So, how does one go about testing a mucky old Beeb that's not been on in 25y or something & has been stored in a dusty attic? Give it a good clean, I guess, but can one hook one to a PC PSU and test its internal PSU in isolation? -- 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

12 years, 9 months

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Digital Engineering - Retro Graphics RG1000 Gen II

by drb＠msu.edu

Folks, Anyone have a manual for one of these? The 512 is online, but I can't seem to find one for the '1000. Presumably this thing speaks 4010, but I'd like to know more about all the assorted connectors and such. Cheers, De

12 years, 9 months

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MultiMax Manual!

by jon＠jonworld.com

Hi everyone! I found that one of the manuals I have is actually single-sided pieces of paper, which means I can use my cheap sheet-feeder scanner. I started the manual, and this is what I have. https://www.dropbox.com/sh/tud9lsq6f9z43bj/Td9vaTGwKz/multimax%10-beginning… -- -Jon Jonathan Katz, Indianapolis, IN.

12 years, 9 months

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KYBE MLC400 tape cleaner -- parting out

by bub7734＠yahoo.com

I have a marginally functional KYBE MLC400 tape cleaner that I'm going to be recycling.? It is almost functional, but one of the cleaning tissue spool motors is missing and the other three motors appear to be non-functional and requiring rebuilding. This thing is big and heavy, at least 70 lbs.? I don't have materials for crating or boxing it for shipping. I'm going to be recycling the unit.? But before I do that, I'll make any parts on the machine available FFS. If anyone has an MLC400 in need of parts, contact me ASAP.? My next recycling pick-up is in a week, and I intend to gut it of any useful parts for hobbies so let me know if you need anything for your unit. Alternatively, anyone in the Minneapolis area can pick up the entire unit. -scott

12 years, 9 months

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IBM 5120 (5110) disk images

by supervinx＠libero.it

Hi! My IBM 5120 (5110 base unit) works well, but I miss the utility disks. Have a bunch of spares 8" floppies, empty. I know there were some IBM utility disks for the 5120, and I can write disk images to an 8" floppy. So, does anyone have disk images for the 5120 system? I searched the Web, with no luck... Thanks! Vincenzo (aka Supervinx) -- Retromuseum: http://www.supervinx.com/Retrocomputer You can reach me at: http://www.youtube.com/supervinx http://www.myspace.com/supervinx http://www.facebook.com/supervinx

12 years, 9 months

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Article: "9 museums that want your legacy tech"

by lproven＠gmail.com

Museums and other institutions are searching for examples of older technology to exhibit. Is there a computer in your basement that qualifies? We tell you who's looking and what they're looking for. By Daniel Dern , Computerworld, October 03, 2013 http://www.computerworld.com/slideshow/detail/121888 No endorsement express or implied, just passing it on... -- 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

12 years, 9 months

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Help identifying a 9316B ROM

by ethan.dicks＠gmail.com

Hi, All, While tidying up, I ran across the following.. 9316B-4504 KA53895 [GI]7851 I was unable to find anything about this specific part via Google, but I know it's a 9316, made 51st week of 1978. I suspect it's a character generator ROM. Might anyone have a list of those? I can probably toss it in an EPROM programmer and dump it out (once I figure out what the chip select lines are expecting), but just a line >from a catalog page or a note from a schematic could save a bit of fiddling. Thanks, -ethan

12 years, 9 months

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More eBay shilling! 2 HP Apollo keyboards, 1 with mouse

by lproven＠gmail.com

I have a couple of these to go. HP Apollo workstation keyboard model 46020A with mouse and cable http://www.ebay.co.uk/itm/271291267271 HP Apollo workstation keyboard model 46020A http://www.ebay.co.uk/itm/271291267936 Again, starting price of 1 UK penny. -- 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

12 years, 9 months

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