test-drb April 2005

test-drb@ccmp.vtda.org

269 participants
730 discussions

AVAILABLE: IBM PC (mdl 5150) w/mon and kb,IBM PS/30 (mdl 30) w/mon and kb

by rigdonj＠cfl.rr.com

Where are they located? At 04:55 PM 4/13/05 +0200, you wrote: >Probably don't wanna ship em, or at least not too far. > >--fred > > >

19 years, 8 months

MOS Kim-1 Any idea of it's worth/value?

by us21090＠yahoo.com

/* coming out of the shadows.... */ I'm planning on exhibiting my MOS Kim-1 at the Trenton Computer Festival (http://www.tcf-nj.org) and it occurred to me that I don't know what this computer is worth (whatever "worth" means). **** I'm not interested in selling it **** My Kim-1 works and is a Rev B MOS unit, with original blue-cover manuals (as well as home brew case and a home brew 2k memory expansion). The only data point I have is a recent ebay auction, where 2 working Kim-1s, nice enclosures, Kim Extender Interface, 4 memory cards, S100 breadboarding card, issues of "Micro", etc went for $642. The item description doesn't mention Rev #, or even whether its a MOS or Commodore (though the photo shows *white* manuals). So... roughly $300 for a Kim-1? Thanks! Scott __________________________________ Do you Yahoo!? Yahoo! Small Business - Try our new resources site! http://smallbusiness.yahoo.com/resources/

19 years, 8 months

Ebay Poll, was Re: knowledgebase request

by marvin＠rain.org

I love the concept, and don't respect the people running it with the policies, distortions, and outright lies they seem comfortable with. Ebay has its uses, but the main one is to allow people who are either ignorant of or are too lazy to work with other distribution channels. Hmmm, maybe most of us :). I've gotten some great deals there but for the most part, there is too much "noise". I've sold some stuff at good prices there, but my belief is that it is for the most part, really only of value for higher end products ... say $100 plus. > > From: "Randy McLaughlin" <cctalk at randy482.com> > > Maybe we can have a poll to see who likes ebay , who hates ebay, and who > aren't sure :) > > Personally I like it, while it can drive up prices for things it has also > caused others to auction them instead of dumping them. > > Greed has saved many systems that would otherwise be scrapped. Of course > there are others that decide to part something out trying maximize the > all-mighty dollar.

19 years, 8 months

Looking for TRS-80 manufacturing stats

by ajp166＠bellatlantic.net

> >Subject: RE: Looking for TRS-80 manufacturing stats > From: "Chandra Bajpai" <cbajpai at comcast.net> > >How about the Model I & Model III? > >I would think they would be 50K+ of each. > >-Chandra I was with RS back then and the M1 was over 250,000. At the end of the first year it was said by (might have been Phil North) We've sold more computers than all the big guys combined. Also watch the numbers. Tandy had nearly 8000 stores and if each sold five in a year that 40,000. They were and still are a volume based company. Allison

19 years, 8 months

2 IBM 3277-2 available [EU]

by cbmpet2001＠yahoo.de

Dear IBM-Users, I have 2 3277 Model 2 (those with the larger screen) from late 70's available for free. The units should work (I couldn't test them so far) and are in very used condition. They come from scrap, I could not see them out there. I will look out for keyboards and am sure that I have at least two spare. Please note: These Units aren't really pretty to look at, but the logics seem complete. If someone want to have them it'd be best to pick them up at my office. I would ship, but thats a bit expensive. It's also possible that I get them into my car and drive a bit. If interested, please contact me by mail, best regards, Wolfgang Eichberger PS.: I have a small Siemens-Terminal (Serial - comes from a DEC P9000 Unix environment, complete) too that I am willing to part with. ==================================================== Ing. Wolfgang Eichberger cell.: +43-664-240-65-92 http://www.eichberger.org email: wolfgang at eichberger.org ---------------------------------------------------- Gruentalerstr. 24 - 4020 Linz ? AUSTRIA ====================================================

19 years, 8 months

And $500 gets you...

by GFisher＠tristonecapital.com

>Message: 5 >Date: Tue, 12 Apr 2005 18:10:40 -0700 (PDT) >From: Vintage Computer Festival <vcf at siconic.com> >Subject: Re: And $500 gets you... >To: "General Discussion: On-Topic and Off-Topic Posts" > <cctalk at classiccmp.org> >Message-ID: <Pine.LNX.4.33.0504121759100.14301-100000 at siconic.com> >Content-Type: TEXT/PLAIN; charset=US-ASCII >lots of stuff deleteted >I do a lot of behind the scenes research that does not get discussed here. >I talk to a lot of people: collectors, scrappers, surplus store owners, >etc. I stay in tune with the "market". >lots more stuff deleted As an economist who is also involved in the auction business (you wouldn't believe what we auction!), it seems to me that the debate is revolving around what the "market" really is. On one side are the ePayers who buy retail and on the other side are those like Sellam who are on the wholesale side of the market (not to imply that he is a dealer, but he sees things before they get to retail, from sources like: scrap dealers, institutions etc.) It is just like when you go to the auto dealer to find out what your trade-in is worth, he looks in his red/black/blue book and gives you what seems like a stupidly low price. Those prices often come from wholesale car auctions and reflect what the dealer could source cars for. He is not going to pay retail price as he wouldn't make any profit from it. That leaves you to sell your car privately if you want to get the "retail" price. But both the car dealer and you see a "market" from different points on a continuum. As I don't live in Silicon Valley or anywhere with a history of "high tech ", I can only use eBay to access the "market". If I did live there, I would have access to many more sources (that's why I'm going the the next VCF!) Conclusion, the market isn't just end users or middlemen, it's both, but they pay/get different prices! Gary Fisher E:gfisher at tristonecapital.com This e-mail and any attachments may contain confidential and privileged information. If you are not the intended recipient, please notify the sender immediately by return e-mail, delete this e-mail and destroy any copies. Any dissemination or use of this information by a person other than the intended recipient is unauthorized and may be illegal. Unless otherwise stated, opinions expressed in this e-mail are those of the author and are not endorsed by the author's employer.

19 years, 8 months

Looking for TRS-80 manufacturing stats

by CCTalk＠catcorner.org

Anyone know an approximate number of units manufactured in the different models? I'm mostly interested in numbers for the following models: 100 200 4 (Gate Array) 12 16b Any guesses? Any authoritive answers Thanks, Kelly

19 years, 8 months

knowledgebase request

by jwest＠classiccmp.org

I think Sellam (and others) should put together a quick article on appraisals (there is a section for that in the KnowledgeBase), so that the frequent "Ebay sucks/rocks" threads can be squelched once and for all ;) Jay West

19 years, 8 months

If TMS9900 CPU on ebay, let me know. Thanks.

by vax9000＠gmail.com

Group, If there is TMS9900 CPU auction on ebay in the near future, please let me know. Thank you. cheers, vax, 9000

19 years, 8 months

Navtel 9460 Protocol Analyzer info?

by dave04a＠dunfield.com

>> On 4/12/05, Vintage Computer Festival <vcf at siconic.com> wrote: >> > I can't remember what the software I used was called, but I think I still >> > have it somewhere and can check. It came with a special double-headed >> > cable though, and unless that cable was just a simple Y-split, I don't >> > know if making one from scratch would be feasible. >> >> The physical cable used with HP line analysers is a simple Y-split - >> 25-position ribbon cable, two DB25F and one DB25M (or the other way >> round... can't quite remember). You can wedge the cable between two >> devices, then attach the free end to the HP pod (or just plug a DB25 >> cable right from one unit direct to the pod if you are using the HP to >> originate or consume bits) >> >> What I'm not sure of is if the HP pod has anything special in the way >> of drivers/receivers to keep from loading the line as it monitors >> things. I could open up a pod and see what's inside... > >I have limited experience with this as I only tried it once, but when I >did I noticed that either one or the other computer was greedy and took >all the bits for itself, and the other computer didn't get any signal, so >I always assumed you needed some sort of "special" cable in order to split >an RS-232 signal. I have a couple of simple serial datascope packages in my Labtools ... I don't supply cables, I just give details on how to make them. Basically, there are two sets of signals to monitor, one going from DTE -> DCE, and one going from DCE -> DTE ... What the "Y" cable does is simply connect the DTE generated signals to the input signals on one COM port, and the DCE generated signals to the input signals on the another COM port. The software reads the two com ports and displays the two signals paths in a standard dual/split line format, with DTE signals on one line, and DCE signals on the other. (Since PCs are DTE's, the input signals to the COM ports are the DCE lines at the PCs serial connector). The DTE signals (outputs) from the PC COM ports are not connected, so the PC does not drive either side ... it just passivly monitors the traffic on the line. For short runs at the speeds commonly handled by a PC serial port, the extra loading of the passive receiver is usually not a problem. One limitation of this approach is that the PC cannot interact with the devices. Some stand-alone/higher-end scopes feature simulation, injection and other features which require that they be able to transmit on the line in specific circumstances these usually have their own set of line drivers and receivers, and act as a simple repeater during passive monitoring. Regards, Dave -- dave04a (at) Dave Dunfield dunfield (dot) Firmware development services & tools: www.dunfield.com com Collector of vintage computing equipment: http://www.parse.com/~ddunfield/museum/index.html

19 years, 8 months

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test-drb April 2005