test-drb May 2004

test-drb@ccmp.vtda.org

244 participants
500 discussions

by bill＠timeguy.com

I found this little gem while excavating in the back warehouse of an electronics surplus company while on vacation recently. I'm guessing that it's pretty rare. Lots of blinky-lights and toggle switches! It looks like it's almost brand new. Now I just have to dig up my 4004 CPU and build something around it so I can try this thing out. Anybody have any information about it? The closest I came was http://www.rdrop.com/~jimw/j-boards.shtml, about the 5th entry up from the very bottom. Looks almost identical, but is apparently for the 8080...

20 years, 2 months

PDP8s for sale

by tandem＠comcast.net

I'm in the process of putting together a list of what I've got for sale. I'm in the Kansas City, Missouri area (USA). I've got a PDP8/e, and a PDP8/a with RX01s. Currently, all are rack mounted in a standard DEC 50" (24u) cabinet. I'll get back with the list soon. tm ----- Original Message ----- From: tandem To: cctalk(a)classiccmp.org Sent: Monday, May 10, 2004 7:13 PM Subject: PDP8s for sale I have 2 complete, working PDP8s for sale to a good home. Is there a good place to list them? tm

20 years, 2 months

Computer Estate( and collecting)

by cb＠mythtech.net

>And dont forget all the beer and snacks you need to get your friends >in order for them to come over and (help you) fix the damn things..! I guess the amount of beer and snacks depends on which "things" they are helping you fix. I'd think it will take more beer to get them to help you fix the horse. :-) -chris <http://www.mythtech.net>

20 years, 2 months

finds from TRW Swapmeet (AKA Northrup Grumman swap meet) today

by rwhulvey＠broadcom.com

Very interesting to see RH32 in the swap meet. I worked some on verification boards for RH32 in '93 and again in '95. Sounds like the board you have was made after I left in '95, since it includes Orca FPGAs which I don't think came about until after that time. We mostly used Actel FPGAs when I was there. It was a fault-tolerant design which was supposed to detect a fault, then back up and start re-executing code prior to the fault. The boards I worked on had only 1 CPU chip, 2 MMUs (for for instructions (IMMU) and 1 for operands (OMMU)), and a connector for an SCU (I forget what that was ... system control unit?) daughtercard, as well as an FPU (floating point unit) daughtercard. I think it was designed to support multiprocessor configs, but we only tested single-processor, as we were bringing it up for the 1st time. As I recall, RH32 was started around '88, supposed to complete around '91, but was about 2 years late in '93 when I started working there. I think it was finally announced in '98: http://www.findarticles.com/cf_dls/m0EKF/n2232_v44/21034857/p1/article.jhtml There were also efforts by IBM to make silicon-on-saphire versions of their RISC System 6000 CPUs which supposedly did not need the explicit hardware fault tolerance used in RH32, since the process was inherently resistant to radiation induced faults. I don't know if it was ever shown to work well. Seems to be a lot of info on the 'net about compiling code for RH32, and even references to it in source files. I guess they ported Linux to the thing long after I had left. I recall TRW contracted Green Hills Software to make tools for it. -Rob Hulvey

20 years, 2 months

Interesting robot

by vcf＠siconic.com

Has anyone else seen this? http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&rd=1&item=3814127711&sspagena… A very interesting home-brew mechanical robot from the 1960s. Less than 9 hours left as of this writing. Perhaps someone local can purchase and preserve it? I'm trying to find a museum somewhere that can take it. Perhaps Ed Sharpe can find a way to acquire it? -- Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintage.org [ Old computing resources for business || Buy/Sell/Trade Vintage Computers ] [ and academia at www.VintageTech.com || at http://marketplace.vintage.org ]

20 years, 2 months

Apple mouse

by mtapley＠swri.edu

My 512K Mac has the squarer connector (although the Mac itself has been upgraded to a Plus). But I don't think it has the little Mouse icon on the connector - I'll have to check that. I could also check mouse serial number, etc. if it will help. Not sure I still have serial number for the computer, as that may have gone with the original back part of the housing. At 18:43 -0500 5/12/04, Marvin Johnston wrote: >Date: Wed, 12 May 2004 09:56:46 -0700 >From: Marvin Johnston <marvin(a)rain.org> >Subject: Re: Apple mouse > > >Michael Fincham wrote: >> >> > Does anyone know when the change took place from the squarish to the >> > rounded end on the early Apple Macintosh mice 9 pin connector? >> > >> >> I believe the Mac Plus was the last model to have the D-SUB 9 for its mouse. > >The original Mac 128 had the 9 pin connector but it had a square shape >as opposed to the later connectors. You can see the difference in this >photo: http://www.rain.org/~marvin/ap-mouse.jpg. The connector at the >right is the original Mac 128K and the one on the left is a later >version. My question is how much later :). > -- - Mark 210-522-6025, page 888-733-0967

20 years, 2 months

A little help from my friends...

by cb＠mythtech.net

>> >Some of this is inspired by stuff around my office (guess which ones :) >> >> The sex toys? > >I don't know about you, but where I'm at, you never know when an orgy will >break out in your office. Oh for the love of god. You just put that image in my head... and with the people I work with, I am now heating my soldering iron so I can jam it into my ear and forever remove that thought! Thanks for ruining my lunch break! -chris <http://www.mythtech.net>

20 years, 2 months

A little help from my friends...

by cb＠mythtech.net

>Some of this is inspired by stuff around my office (guess which ones :) The sex toys? -chris <http://www.mythtech.net>

20 years, 2 months

FS: DEC 3000/400 & Sun Ultra 1 170E

by woyciesjes＠sbcglobal.net

Located in New Haven, CT area - 06517. Pick up only. I don't want to break up either system. Make me an offer by 5/21/2004 DEC 3000/400 2 mice keyboard 17" color monitor (or is it 19?) CD-ROM 2 GB HDD 64 MB RAM Sun Ultra 1 1 optical mouse w/special pad 1 ball mouse 2 keyboards 17" color monitor external CD-ROM 2 1 GB HDDs maybe a 4 GB also... floppy disk 128 MB RAM Creator 3D video card -- --- Dave Woyciesjes --- ICQ# 905818

20 years, 2 months

OOPS! was: Re: Forward from the Computer Collector's List

by rigdonj＠cfl.rr.com

I just found out that the original message from Brian came from his site at <http://www.geocities.com/computercollectors/index.htm> and not >from this list. So if my message appeared out of the blue then that's why. I expect that many of you are also on Brian's mail list. If you're not, you should consider joining (use the link above). Joe FYI I went over and visited Ed today and bought the o'scope. He has a nice old IBM PC XT if anyone is interested in one. He's the original owner and thinks that he still has the original reciepts, etc for it. He bought it WITHOUT a hard drive! It still has the two original HH floppy drives with the * on them. He's installed a hard card and a 3 1/2" floppy drive. It still has the original floppy drive controller in it. I think he has all or most of the other original cards for it. He has several different video cards for it including a Paradise CGA card that can drive a monochrome monitor. He has a Amber Amdek monitor for it and I think he also has a VGA monitor and video card for it. The machine is in very good condition. If anyone wants a good original IBM computer they should give him a call. Joe At 07:09 PM 5/10/04 -0400, Brain wrote: > >This came in today for anyone in the southeast US. Doesn't sound that >collectible but who knows. > >Brian > >>From: "Ed Elkes" <eelkes(a)cfl.rr.com> >>To: <antiquecomputers(a)hotmail.com> >>Subject: Lost enthusiasm >>Date: Mon, 10 May 2004 17:16:04 -0400 >> >> >>I never thought I'd say this, but I've lost my enthusiasm for keeping the >>old machines running. Original IBM PC-XT, Compaq 386-33, ALR Pentium-133. >>Just not in the mood, anymore, I guess. >> >>I'm looking for anyone who is looking for, not only these PC's, but scads >>of >>boards, SCSI controllers and drives, server cases, Netware manuals, RAM, >>etc. I've held on to enough parts to rebuild these machines several times, >>and now I would like to find someone who needs or can use them for their >>own >>hobby machines. These machines all ran on my Netware network, which also >>has gone away. >> >>I've placed a list of what I've sorted out, so far, on my Web page, so you >>can see what there is and see if you, or anyone you know, might be >>interested. The list will be updated as items have sold and more items >>have >>been added. I'm not through uncovering stuff. Everything is IBM PC-based, >>8 and 16 bit. I never followed Apple or the earlier kit brands, although I >>did have a few. >> >>The Web page is www.geocities.com/ed_9213. More detailed info for the >>above >>computers is listed there, as well as the miscellaneous items. Like, where >>would you still find an 8-bit multi I/O card with 2FD 1S 1P 1G & clock, or >>a >>B/W VGA monitor? How about PC DOS 2.1, or a hard drive controller that will >>handle 8 IDE drives at once? Just a sample. >> >>Thanks. >> >>Ed Elkes >>Lake Mary, Florida (Orlando Area) >>ed9213(a)cfl.rr.com >>

20 years, 2 months

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test-drb May 2004