test-drb July 2003

test-drb@ccmp.vtda.org

279 participants
450 discussions

by jmd5＠earthlink.net

hi.... I have 3 Sony SMC-70 computers I need to find good homes for. 1 is working and the other two boot but do not read the floppy completely. Maybe some cleaning or adjustment of the floppy drives would help. 2 sets of CP/M for Sony. They do differ a bit. I thought I had some applications but so far have not found them. I have what I believe to be all the original documentation (4 loose leaf note books in cardboard holders): CP/M Operating System Parts 1-3 Sony SMC-70 Hardware Reference Manual. 1- small paperback Sony SMC-70 Micro Computer Operating Instructions Addons include: 1-Sony SMC-7086 Supercharger (runs 16 bit apps I believe) but I do not think the software is on the 2 floppy disks I have. There is a Manual for this too. 1-SMI-7050 cache disk unit 1-XEBEC-70 (built similar to disk cache unit but not sure what it is) 1-SMI-7016 floppy disk control unit 1- unlabeled part that is similar in build to the 3 above. I do have a Sony PVM 1271Q Trinitron Color Video Monitor with video cable. You will however need to adapt a 9 pin connector to a 25 pin connector (i used a serial cable and broke off one pin to allow use on the computer side. I do get a very red screen so one would need to check the pinouts for configuration) Also, a Sony 1311CR with a cable that may well be adaptable for use. If I find anything else as I clean I will include it. Not sure what a value might be. I will entertain all offers for a week or so and then if there is no interest here put them on eBay. I am thinking it would be best to keep the working computer and addons together. If someone were interested in the complete system I would glady donate the other two to a museum or someone who wants to restore them. Jeff Duncan

21 years, 2 months

OT: Computer Hardware that must go... (cctalk)

by dwoyciesjes＠comcast.net

Well, I've been talking about it, and now I finally hove gotten together a basic list of computer hardware and parts that I'm clearing out of my basement... includes some older laser printers, 68k & PPC Macintosh computers, couple Sun SparcStations, Pentium computers, couple Cabletron 10baseT hubs, pair of Digital DELNIs, DECRepeater 350, and other random bits... Check them out at: http://mywebpages.comcast.net/dwoyciesjes/hardware.htm ...and... http://mywebpages.comcast.net/dwoyciesjes/peecees.htm PayPal, Money Order, Cash (if you come and pick it up), or trade. As you can guess, you picking it up is preferred (but not required) considering the amount of stuff I'm clearing out. Otherwise, I'll ship FedEx Ground. I'll give everyone 3 weeks to get thier offers in. This is the stuff I'm looking in trade: http://mywebpages.comcast.net/dwoyciesjes/wanted.html -- --- Dave Woyciesjes --- ICQ# 905818

21 years, 2 months

OT: remembering old thread from about a year ago: Tek scope

by ghldbrd＠ccp.com

I picked up a Tek 321 scope, and I remembered a thread about a year or so ago about someone with a Tek 3" scope looking for help getting it going. Point me in the right direction, and I'll hold my peace. Gary Hildebrand St. Joseph, MO

21 years, 2 months

Microchannel Ethernet

by nedry＠mail.bedlambells.com

Don't need that... but, anyone got any microchannel ethernet cards? I have an IBM PS2/95 server, with only token ring. It's that or I have to build my own token ring segment. Kind of a drag... Thanks, Mark ---------- Original Message ---------------------------------- From: Bill Richman <bill(a)timeguy.com> Reply-To: cctalk(a)classiccmp.org Date: Tue, 22 Jul 2003 09:19:02 -0500 (CDT) >We've got a bunch of it at work, too. Probably 200 cards (mixed ISA & >PCI), several Madge "Smart" CAUs, LAMs, and RAMs, and a boatload of patch..

21 years, 3 months

Eli Heffrons on Hampshire Street, Cambridge,MA, USA

by classiccmp＠crash.com

Bob Shannon wrote: . > I've owned two, and serviced a great many back in the Eli Heffron days. Yow! I drive by the site every now and again and shed a tear for what was once a wonderful place to lose an afternoon. Back around '89-91 I worked at MIT and Eli's was a prime source of parts for labs with tight hardware budgets to repair/upgrade their ailing MicroVAX II's and such. I remember wandering the shelves and seeing RX0n drive cabinets, whole pdp-11/44's, and other goodies that I didn't do anything about. What I did do was buy an SGI Iris 3130 with monitor -- nobody seemed to know what it was, but I got it to boot. I believe I paid $2k for that thing with 20" color monitor, and hauled it home in a friend's car. Fooled around with that for a couple months but something in the monitor went, probably a flyback. I decided by that time that I needed a Sun for a project I wanted to do when I returned to college (anybody remember UCB's Sprite?), so I sold the thing with a dead monitor for the same price. Who knows, maybe I could have gotten more, the thing was loaded with bitplane and Geometry Engine boards. But the weird System III derivative OS really put me off at the time. Manys the time I've wished I could go back in time and raid those shelves, or browse through the tables of electronics parts... --Steve.

21 years, 3 months

IBM 5100 tinkering

by hansp＠citem.org

We did some tinkering with our IBM 5100 the other day with results which might be of interest. Our 5100 is a model A4; it has 64Kbytes of memory and APL (only). When we opened up the beastie for a service a year or so ago and speculated on the fact that there were no empty slots in the card cage (we do seem to have every built-in option made) which led us to propose that perhaps the BASIC interpreter was also included but made unavailable by the absence of the language selector switch on the front panel. Examining the cable harness behind the panel showed a particularly thick section encased in insulation tape just behind where the language select switch would be installed and tempting evidence of one, possibly two unconnected wires. At that time we went no further. This week we were prompted to revisit the 5100 with a view of seeing if we could in fact run BASIC. Carfully cutting open the insulating tape around the cable harness behind the language select switch position revealed two unconnected wires complete with tiny push on connectors. We jumpered the two wires, powered on the machine and waited with bated breath. Following the familiar self-test display we were presented with an unfamiliar prompt, not the APL one at all. A little fiddling with the keyboard quickly confirmed that we had BASIC operational! So at least the APL only versions of the 5100 are configured with the BASIC interpreter which is disabled simply by the absence of the language select switch. Our IBM engineer speculates that the reverse is not the case : the BASIC only configuration does not include the APL ROM code. Anyone care to experiment and confirm that? We are now installing a language select switch (though alas not of the same type as the others) and look forward to playing with BASIC on the machine. Does anyone know the price difference between the A4 and C4 models? I would hazard a guess that that switch cost several hundered dollars at least ;-) Oh, what prompted us to revist the 5100? We recently acquired a Commodore PET 2001 and on compiling some techinal notes for it found a web site stating that the PET was 2 to 3 times faster than the 5100. That statemnet surprised me and I wanted to confirm it. Early indication show that the two machines are remarkably alike in performance (another suprise) the following program runs in the same time (to the second) on both machines : 10 a = 0 20 print a, a*a, sqr(a) 30 a = a + 1 40 if a < 100 goto 20 50 stop The 5100 seems about 30% faster on though with the following program: 10 a = 0 20 b = a*a 25 c = sqr(a) 30 a = a + 1 40 if a < 100 goto 20 50 stop So it seems it is the display which slows it down. Regards, -- hbp

21 years, 3 months

Best way to Sell Old, Used Software and SW/dev Books w/little Collectible Value?

by dwallace＠m-net.arbornet.org

Hi, My first time posting here - apologies if I should have RTFM first on this topic. I have a mountain of dated (late 80s - early 90s vintage) and probably non-collectible software packages and books that it seems to me would be a waste to consign to a landfill. I mean stuff like: Clipper 5.2 Corel Draw (Win 3.1) Version 4 Quattro Pro for DOS Ami Pro for Win 3.1 Star Trek Screen Saver (ca. 1992) Borland C++ 3.1 for Windows and DOS with Application Frameworks Books such as "advanced c-struct programming" (OOP on C), Peter Norton's "Inside OS/2", Alan Holub's "Compiler Design in C", several different DOS and BIOS interrupt references, a book on device drivers for DOS (yechhh!)... When I think of all the money I squandered on this cr$p in past years so I could stay in place with idiot employers and not even advance, I want to go GAAAAH! I *also* want, if possible, to make a buck or two off the lot or individually, and remove it from my view and from my basement. The Rubbermaid containers it's in are probably worth much more than this stuff is worth. Maybe. I doubt that most of this stuff is even worth paying the advertising fee on Ebay, and there's a LOT of it. Maybe the thing to do would be to advertise a few of the "better" pieces (like the Holub book) on Ebay, and in that ad on Ebay link to "other articles for sale". Just to generate traffic from the Ebay placement. Ideas? Know of any brokers that would take the entire lot? Or, know of any Luddite communities that eschew sinful protected mode OSs in favor of simple, uncomplicated DOS and 286 level software that penalizes the sinful user with random lockups? :-) OK, that was reaching... Thanks!

21 years, 3 months

Analog computer article

by mranalog＠comcast.net

Hi All, If you are interested in building your own analog computer or just interested learning more about how an analog computer works, I found a PDF version of a 4 part construction article on the web. The article, I believe, is from Practical Electronics Magazine (UK) (date unknown, probably late 1970s). The amplifiers are 741 opamps. And the amplifiers even have overvoltage indicators which is a sophisticated feature usually found only on commercial computers. Part 1 is how an analog computer works Part 2 is construction details Part 3 is wiring and testing and Part 4 is programming and special circuits The file 2.25 MB Kronis, P., "Analogue Computer", Parts 1, 2, 3, 4 http://patrik.unx.nu/tech/analog_dator/anacomp.pdf --Doug ========================================= Doug Coward @ home in Poulsbo, WA Analog Computer Online Museum and History Center http://dcoward.best.vwh.net/analog =========================================

21 years, 3 months

NeXT Cable

by jkersey＠scoab.com

Hi, I saw your posting on a mail archive about having the cable that goes >from a NeXTStation to the monitor, you wouldn't happen to still have this would you? Thanks, and sorry for the intrusion, Jim -- Jim Kersey Scoab Interactive http://www.scoab.com

21 years, 3 months

CFX-400 Case

by wrawbee＠hotmail.com

Stan, I've done some calling around and emailing. Casio has four distributors that they send replacement parts to. None of them have the case in stock. The last time a case was sold from Casio was on April 30, 1996. It was to an individual, not a distributor. The CFX-400 case with key pad has two part numbers. The first is 73081910. It was later changed to 73081928, but it is the same part and description. There are two parts still in production and available from Casio that you may want to consider buying. They are the rubber backing seal and the LCD (not the module, just the screen). Good Luck. _________________________________________________________________ Add photos to your messages with MSN 8. Get 2 months FREE*. http://join.msn.com/?page=features/featuredemail

21 years, 3 months

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test-drb July 2003