test-drb May 2002

test-drb@ccmp.vtda.org

246 participants
947 discussions

by lgwalker＠mts.net

Damn after being away 2 weeks my mailbox was jammed with msg's. Here's a suggestion to cut down the traffic. I've long thought that CC should be subdivided into micros and minis. I imagine many scroll down the messages and delete anything related to DEC PDP, VAX, and any other mini stuff like I do, and I'm sure the mini and big iron people do the same. There seems to be almost a pattern of mini, then micro threads that happen as can be seen in the archives. I do occasionally enjoy the mini threads, but usually I just delete them. And that goes back to 97 or so. I also get the impression that the mini folk are annoyed in general with the micro traffic. Cool, don't spit on my Amiga and I won't spit on your PDP. It would be easy to subscribe to both lists for those who have a broader perspective, but would ease up on those of us who don't. Just looking to optimise my time. Lawrence lgwalker(a)mts.net bigwalk_ca(a)yahoo.com

22 years, 8 months

[CCTALK] Good Trip / good Score

by lgwalker＠mts.net

Just did a trip to BC from Central Manitoba. That's in Canada, eh, Yank. Thanks to Alex W. I picked up a Dec Rainbow+ w/color card and a DEC VR240 and a DEC printer and some PS/2 stuff. Finally I have one as a DEC Rainbow should be - in color In Vancouver I hit the mother lode. I had also arranged to pick up there an Osborne I w/manuals, software, and a 12"x12" Summa graphics Tablet w/4 directional mouse. Also a box of viginal 8" diskettes. Van is great for yard sales and also they do a spring garbage blow-out. PICKIN" TIME !! An Amiga 1000 that I almost missed cause it was still in it's styro pkgng. Same garbage, a clean C-64C with PSU, nice 1802 , and a 1541 fdd. Mac keyboard, LT mouse, large wheel mouse, box of C64 disks, Lloyds TV Sports Gamer, and passed on a Tandy ARM at $15 (which I now regret.) 3x IBM newer PS/2 machines and an integrated AST, several 15' SVGA monitors. A box with about 50 TRS-80 zines A box of Intellivision carts and about 8 Adam tapes, A SHARP PC 3000. After cleaning out the battery compartment and using new batteries it worked. DOS 3.1 w/a pcmcia card whose Li. battery is surely dead as is the notepad's. And many non-computer items. The Sharp 3k is a neat little 8088 handheld about the size of an Atari Portfolio. Sharp brought it out after high sales of it's Poqet but retreated when some of the heavier-duty co's. attacked that market Based on the numerous site info it's a great machine related somehow to the HP95. At least it can use the HP PCMCIA's if I understood correctly.( IIUC) Anyone here a fan of this hand-held ? Lawrence lgwalker(a)mts.net bigwalk_ca(a)yahoo.com

22 years, 8 months

IBM Series/1

by martinm＠allwest.net

I've run into an IBM Series/1 computer available for the hauling. I need advice as to whether it is worth saving. Space is somewhat tight and it is a large rack (requiring 220 VAC), printer and, supposedly, a console terminal. Relevant part numbers are: 4955 IBM Processor, Series/1 4963 IBM Disk Subsystem 4965 IBM Diskette Drive and I/O Expansion Unit 4975 Printer Some googling indicates that it ran an OS called EDX (Event Driven Executive?). I found some mention of a *nix that ran on it. The computer was released around 1976. This one was working when retired years ago. The rack and printer are in a basement and the console terminal, some manuals, etc. are supposed to be in a storage unit. Specs that I have found show that the disk is a 68 MB drive that weighs about 150 pounds alone. Is saving this computer worth the aching back? Anybody have advice, war stories, links or other information on this old beast? Thank you, Martin Marshall

22 years, 8 months

[CCTALK] RE: [CCTECH] TRS-80 Model 1

by DAW＠yalepress3.unipress.yale.edu

> From: Sellam Ismail > > On Wed, 15 May 2002, David Woyciesjes wrote: > > > > Note: As a benefit to those here on the cctech side of the list who > value > > > topical messages, I am only sending these many referrals I receive > every > > > month to cctech. > > > > Ummm, aren't all cctech messages supposed to automatically get sent > > to cctalk also? If so, then that 'benefit' wouldn't exactly work they > way > > you intend, Sellam... > > Err, you're right. This new list is too confusing. > > Sellam Ismail Vintage Computer > Festival > -------------------------------------------------------------------------- > ---- > Well, not really. cctech is moderated, to help block spam, and keep out the OT messages. it is also sent to cctalk, so everyone can see all the messages. cctalk is just that. A big room full of conversations that go anywhere... cctalk are getting the messages from here, right? -- --- David A Woyciesjes --- C & IS Support Specialist --- Yale University Press --- (203) 432-0953 --- ICQ # - 905818 Mac OS X 10.1 - Darwin Kernel Version 5 Running since 01/22/2002 without a crash _______________________________________________ cctech mailing list cctech(a)classiccmp.org http://www.classiccmp.org/mailman/listinfo/cctech

22 years, 8 months

[CCTALK] EPROM Life... Was: scanners & circuit boards...

by CordaAJ＠NSWC.NAVY.MIL

Now, I don't know the construction/nature of the tubes used in scanners, but I myself would be wary of photocopying or scanning a PC board with an unprotected (i.e. uncovered) EPROM window face-down on the scanning surface. My reasoning is as follows; Although a fluorescent tube in good condition shouldn't emit much UV, one has to remember the way such a bulb functions. The excited gas inside the tube emits almost entirely in the UV spectrum. This is converted to the visible spectrum by the phospor coating on the inside surface of the tube. Over time, I have seen some of the coating flake off the inside of old flourescent tubes, providing a bunch of small UV "windows". Most UV Eproms begin to erase when exposed to UV wavelengths shorter than 4000 A (Angstroms). I found the following statement concerning EPROM sensitivity to UV light on page 10-9 of the National Semiconductor 1984 "CMOS Databook" (and yes, I _am_ a packrat when it comes to old databooks :-) concerning the 27C16 (a very common older type of EPROM): Erasure Characteristics: "... It should be noted that sunlight and certain types of fluorescent lamps have wavelengths in the 3000 A - 4000 A range. Data shows that constant exposure to room-level flourescent lighting could erase the typical NMC27C16 in approximately 3 Years, while it would take approximately 1 week to cause erasure when exposed to direct sunlight..." Also, one must keep in mind that the timeframes listed above are probably derived from studies of "freshly programmed" eproms. Most of the ones we would be interested in would already have a number of years of charge decay under their belts. I was unable to find a reference to a finite lifetime for UV Eproms, but I seem to vaguely recall that there is a limit (~10 Years? sounds short, but I seem to remember reading it somewhere. Does anyone have this number at hand?) The end result of all this is that if you have any equipment you consider valuable, and it has windowed EPROMS, make certain that the windows are covered with an opague sticker. You might also consider dumping their contents to a data file for archival purposes. (and possibly re-programming them to effectively "refresh" them). -al- -acorda(a)1bigred.com > -----Original Message----- > From: Tothwolf [mailto:tothwolf@concentric.net] > Sent: Wednesday, May 15, 2002 4:16 PM > To: cctalk(a)classiccmp.org > Subject: Re: [CCTALK] [CCTECH] scanners & circuit boards... > > > On Wed, 15 May 2002, Jeff Hellige wrote: > > > What's everyone's thoughts on placing circuit boards directly on the > > bed of a scanner for imaging? Any possibility of damage to > the board > > from the light or other parts of the scanner? I've done it before > > with good results but not with anything truly unique. > > I'd be more concerned with accidentally scratching the glass > bed of the > scanner due to sharp component leads. I guess that there is a slight > possibility of degrading the contents of an EPROM if its window isn't > covered. The fluorescent tube the scanner uses to illuminate the bed > really shouldn't be emitting too much in the way of UV or > near UV light > though. Other than UV erasable components that don't have their window > covered, I can't think of anything else I'd be concerned about. > > -Toth > > _______________________________________________ > cctalk mailing list > cctalk(a)classiccmp.org > http://www.classiccmp.org/mailman/listinfo/cctalk >

22 years, 8 months

DEC 3000

by csmith＠amdocs.com

> -----Original Message----- > From: Dan Kolb [mailto:dankolb@ox.compsoc.net] > turn it into a VMS system - would 400Mb hard drive be enough > to have a > working VMS + DECWindows + Multinet (and various useful internet > programs, like IRC ;-)? Also, would there be any potential Plenty of room. I have a disk no larger than 300M with VMS 7.2 for VAX, DECWindows, DECNet, UCX (by any other name), etc, and space left. Of course, I use a separate, external 600MB disk for user home directories and the like. I wouldn't except the Alpha version is much larger. Just be careful not to overload it with stuff you won't use. > problems with > simply pulling the CD drive out of my 3000/400, sticking it into the > 3000/300L, and booting VMS from the CD? Are they both single-ended SCSI? My guess is no problems at all. Chris Christopher Smith, Perl Developer Amdocs - Champaign, IL /usr/bin/perl -e ' print((~"\x95\xc4\xe3"^"Just Another Perl Hacker.")."\x08!\n"); '

22 years, 8 months

drivel

by csmith＠amdocs.com

> -----Original Message----- > From: Sridhar the POWERful [mailto:vance@ikickass.org] > > Wasn't the DEC 3000 an early Turbochannel Alpha system? Or am I all > > mixed up? > You are absolutely right. Just checking. I always thought that Merle would be busy hauling more sensational things... not that I dislike Turbochannel Alpha systems ;) Chris Christopher Smith, Perl Developer Amdocs - Champaign, IL /usr/bin/perl -e ' print((~"\x95\xc4\xe3"^"Just Another Perl Hacker.")."\x08!\n"); '

22 years, 8 months

drivel

by csmith＠amdocs.com

> -----Original Message----- > From: Merle K. Peirce [mailto:at258@osfn.org] > "DEC 3000" Anyone familiar with this? Also we were given an Echo I Wasn't the DEC 3000 an early Turbochannel Alpha system? Or am I all mixed up? Chris Christopher Smith, Perl Developer Amdocs - Champaign, IL /usr/bin/perl -e ' print((~"\x95\xc4\xe3"^"Just Another Perl Hacker.")."\x08!\n"); '

22 years, 8 months

DEC 3000

by DAW＠yalepress3.unipress.yale.edu

> From: Gordon Zaft > > At 01:40 PM 5/17/2002 -0700, you wrote: > >On Fri, 17 May 2002, Merle K. Peirce wrote: > > > > > That aside, we received an interesting donation today, an HP700 with > 660 > > > drive, also a7580? plotter and a Decstation 5000. Also in the lot was > a > > > "DEC 3000" Anyone familiar with this? Also we were given an Echo I > > > optical storage system. We were told it may have a Sun 1 cpu, Anyone > > > familair with this system? > > > >We've got a DEC 3000 at the ACCRC (Alameda County Computer Resource > >Center). So far it's been saved from the recycle bin but I'm not quite > >sure what to do with it yet. More accurately, it's been sitting in > >another part of the warehouse and hence is out of mind. It'll probably > >end up going into the VCF Archives. > > It's an Alpha-based system, runs VMS, Tru64 and NetBSD at > least. There's some info at: > > http://www.netbsd.org/Ports/alpha/models.html > On the back should be a sticker with more info, to tell you if its a 300, 400, 500, or whatever model... My 3000/400 is running pretty nice, I just need to find more memory for it... -- --- David A Woyciesjes --- C & IS Support Specialist --- Yale University Press --- (203) 432-0953 --- ICQ # - 905818 Mac OS X 10.1 - Darwin Kernel Version 5 Running since 01/22/2002 without a crash

22 years, 8 months

[CCTALK] cctalk list (CHANGES)

by csmith＠amdocs.com

> -----Original Message----- > From: Jay West [mailto:jwest@classiccmp.org] > > If that's the case, I don't think that will work. > Yes, it will work, but the responsibility is the choice of > the list member, > not mine. If one wants to see posts on both, they should join > both lists. > However, keep in mind that most people won't want to join > both, they will > only want one or the other. In the end, it's the users choice. Of course it would be possible for anyone who wants to be seen on cctech to join that list too, specifying that the mail from cctech shouldn't be delivered to your account, since you'll already get it >from cctalk, and then just send any posts which are squarely on topic there. They'd be bounced to cctalk, and everyone will see them. Chris Christopher Smith, Perl Developer Amdocs - Champaign, IL /usr/bin/perl -e ' print((~"\x95\xc4\xe3"^"Just Another Perl Hacker.")."\x08!\n"); '

22 years, 8 months

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test-drb May 2002