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

by ethan_dicks＠yahoo.com

--- Chuck McManis <cmcmanis(a)mcmanis.com> wrote: > At 11:44 PM 9/13/00 -0400, you wrote: > >I've heard that Freon...isn't nearly as dangerous as it's made out to > >be, and that the recent legislation to have it banned came about just after > >the patents expired > > It isn't patents, it is the CFC treaty (Osaks?) that bans the production > (first) and then use (second) of CFCs based on their alleged, but unproven, > impact on the ozone layer surrounding the earth. Note that I do not dispute > that there is a gap in the ozone layer around the earth, only that no one > has yet given anything more than conjecture on why it exists, and since we > don't have historical data on its existence (or lack thereof) we don't yet > have anyway of proving or disproving said conjectures, but something that > _was_ a provable way of saving _actual human lives_ was banned because of > it. </soapbox> I have personally worked with scientists from the University of Wyoming and technicians from NASA Goddard Space Flight Center who directly and indirectly measure the ozone hole and the chemicals that are harmful to ozone (CFCs, Bromine compounds, etc.) I have helped launch balloons and collect telemetry data. No doubt that I'm not an unbiased source, but even though I think CFCs are nifty compounds at ground level for lots of tasks (cooling, cleaning, etc.), at 30,000m, they are not a) natural and b) harmless. At McMurdo, in spaces with electrical equipment, rather than Halon, there are built-in C02 fire-supression systems. They are much larger physically, and harmful to humans, but CO2 poisoning vs. Halon suffocation leave you just as dead. -ethan http://penguincentral.com/ozone.html ===== Even though my old e-mail address is no longer going to vanish, please note my new public address: erd(a)iname.com The original webpage address is still going away. The permanent home is: http://penguincentral.com/ See http://ohio.voyager.net/ for details. __________________________________________________ Do You Yahoo!? Yahoo! Mail - Free email you can access from anywhere! http://mail.yahoo.com/

25 years, 9 months

17
24
0 0

UNIX and games (was: DEC computer labs)

by ajp166＠bellatlantic.net

From: Eric Smith <eric(a)brouhaha.com> >> Heh, heh... I like that, but you've got it backwards. You start by playing >> UNIX, and if you win you get to play OpenVMS! > >No, you've BOTH got it wrong. > >You start with VMS. If you quit playing and switch to Unix, *then* you >win. :-) Still wrong... you start with PCees and when you outgrow training wheels helmets and knee pads you move on to VMS or Unix. If you loose you go to WinNT hell. Allison

25 years, 9 months

1
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IBM disk drives

by MTPro＠aol.com

Hello, could anyone help this person out with some information or leads? Please reply to her directly. Thanks, David Greelish Publisher Classic Computing Press www.classiccomputing.com >From lorri1961(a)yahoo.com - I've been given an assignment to research and compare the differences in the IBM 350, 1301 and 3350 disk drives. I've been searching most of the moring and haven't come up with very much at all. I've checked the IBM site and find mostly current hardware. I've search several other sites and find only brief references to the devices. Would you happen to have any leads that would help me find the Platter diameter, rotation speed, capacity in MB and data tranfer rates of these devices. I'm not asking for answeres, only for possible leads to the information. Thank you for your help, Lorri

25 years, 9 months

1
0
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Halon dumps: a data point

by CLASSICCMP＠trailing-edge.com

A couple years ago we had a thread about Halon fire-suppressing systems used in computer rooms. Through the school of hard knocks, I just learned first hand how such systems operate. Today at work (let's just call it a "large employer in the Washington DC area") we had a memorable incident in Operations Control when someone (with undoubtedly good intentions) unscrewed the solenoid controlling the valve and dumped - without warning - 2500 pounds of Halon 1301 into the room in just a few seconds. (Operations is a *big* room. It was fitted with eight giant red tanks of Halon.) Normally there'd be a thirty-second delay as an audible alarm allowed the occupants to clear the room, but this feature is bypassed if you go straight to the solenoid! The sudden pressure from the halon dump sent numerous ceiling tiles flying, as well as large stacks of paper that were blown off the consoles. Not everyone evacuated immediately - several folks in safety-critical roles stuck around for ten or fifteen minutes until the firefighters showed up with air packs that allowed others to relieve them. Some who did stick around eventually left in ambulances (I *hope* just to run some precautionary tests.) The good news: the computers didn't hiccup at all during all this. Moderately good news: Halon dumps aren't instantly fatal. Seeing as how I spend a good fraction of my day within a couple of feet of some giant red Halon tanks in the concrete bunker - oops, officially it's called "computer room" - this is good to know. I'd been heavily trained that when the Halon dump alarm sounds, you *get out*. Now I know a little more, especially about the dead-man switch you can use to delay an electronically-triggered dump. This Halon is Good Stuff. Other than some grit blasted from the ceiling tiles, there was zero debris left in the machinery. What's the "environmentally friendly" equivalent used today? Is there such an equivalent - something that will put out a fire, but at the same time not damage vital equipment? Tim.

25 years, 9 months

14
22
0 0

I've got my Atari 800 and ATR8000!

by ajp166＠bellatlantic.net

From: Fred Cisin (XenoSoft) <cisin(a)xenosoft.com> >> I'm hoping to get a book on CP/M soon. >For user level, there were some books by Rodney Zaks. >Dr. Dobbs once had an article "CP/M command Summary". I'll bring a xerox >of it to VCF. >For programming info, try "CP/M Systems Programming" by Larry Hughes. For programming I recommend two MUST HAVE books. DRI the CP/M 2.2 native books, you can find copies on the net I'm sure. Hard copy is not hard to find either. It was also republished by Morrow, Compupro and Kaypro to name a few so not seeing DRI on the cover is not unusual. The Programmers CP/M Hand Book by Andy Johnston-Laird What DRI forgot he reminds us of or corrects. Also hit the deltasoft site as having sources for CCP, BDOS and all is not a bad thing either. Allison

25 years, 9 months

1
0
0 0

VAX 8900 booter

by ajp166＠bellatlantic.net

From: Nick Oliviero <oliv555(a)arrl.net> >Thanks. I don't have one of those, I'll check into whether its >still in the cabinet. > >Nick If it is let me know... All the ones I'd seen were out side the big box on a desk with a tube, keyboard and printer. There was a cable >from the back of the Pro to the vax, not too fat but unique to that useage. Allison

25 years, 9 months

1
0
0 0

Pentium life extermination

by ajp166＠bellatlantic.net

From: Shawn T. Rutledge <rutledge(a)cx47646-a.phnx1.az.home.com> >> (they apparently own the justice department already, since they're more of a >> monopoly than microsoft), each new company = more money = more crap by intel > >No they aren't. AMD keeps becoming a better competitor; remember it >wasn't that long ago that they only had cheaper but inferior clones, they >didn't have processors which actually performed better than Intel's, >even at the high end. But now they do. And there is also Transmeta. I'd also agree at one point you had Intel, AMD, Cyrix and some I forgot. Monoply no, some better than others sure. Also there are whole market segments where intel does not own more than a small peice of it at all. Allison

25 years, 9 months

1
0
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VAX 8900 booter

by ajp166＠bellatlantic.net

I believe it used a pro350 or 380 with a special interface board set as a system console. Pros are PDP-11 FYI. Allison -----Original Message----- From: Nick Oliviero <oliv555(a)arrl.net> To: classiccmp(a)classiccmp.org <classiccmp(a)classiccmp.org> Date: Thursday, September 14, 2000 8:18 PM Subject: VAX 8900 booter >Anyone know what boot device was installed in this ? >I know that earlier Vaxen used PDP11s. A quick search >of the net yielded little information about this model. > >I've got a line on one about to be dismantled and want >to find out if theres anything in it worth salvaging. Don't >have access to it, its 1000 miles away. But I have a friend >there willing to scout it for me. Thanks. > > Nick >

25 years, 9 months

2
1
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I've got my Atari 800 and ATR8000!

by ajp166＠bellatlantic.net

From: Neil Cherry <ncherry(a)home.net> >Now comes the questions, I don't know the commands for CPM does anyone know >of a good intro to ccp? I'm hoping to get a book on CP/M soon. In the mean Yes DOS on a PC, it's nearly as useful as CP/M. CCP, native commands: DIR, REN, ERA, SAVE, TYPE, USER Transient programs: PIP, STAT, ED, ASM, LOAD, DDT, DUMP, SUBMIT Allison

25 years, 9 months

1
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am9519a

by ajp166＠bellatlantic.net

From: Daniel T. Burrows <dburrows(a)netpath.net> >That is not what I meant. ;) reach out... and pull someones leg. >It amazes me how you and several others on this >list can come up with so much good info at the drop of a hat. I'm acient, been there, done some too and alzhimers hasn't struck yet. Soooo that give me the fastest access, my memory. That and I remember parts and their numbers better than names. Allison

25 years, 9 months

1
0
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Various Hardware and Software to Give Away (fwd)

by vcf＠siconic.com

This person has some stuff to give away. Please contact her directly. Reply-To: ctoy(a)com21.com ---------- Forwarded message ---------- Date: Wed, 13 Sep 2000 10:07:46 -0700 From: Cindy Toy <ctoy(a)com21.com> To: donate(a)vintage.org, ctoy(a)com21.com Subject: Various Hardware and Software to Donate Hi, I have been involved with the computer industry since I purchased my first IBM PC with Expansion unit at ComputerLand in 1981. A few years ago, I gave that units away to a friend. However, I have a fully loaded (by 1985 standards) Compaq lugable computer which still works. In addition, I have two printers. One Okidata Microline 93 dot matrix printer and one Brother HR25 impact printer. Various software titles and peripherals some in its original box. Where can I donate these? or should I just trash it? Regards, Cindy Sellam International Man of Intrigue and Danger ------------------------------------------------------------------------------- Looking for a six in a pile of nines... VCF 4.0 is September 30-October 1 San Jose Convention Center, San Jose, California See http://www.vintage.org for details!

25 years, 9 months

1
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Systems available

by cem14＠cornell.edu

Well, my current job will be over next December and I will have to move elsewhere. Unfortunately, I won't be able to take all of my stuff with me, so I have to get rid of things. I'll offer a few things on the list first, then try to sell it on eBay. Other things go straight to eBay as I don't think that there is any interest for them here. So, here's a summary (and before I forget, location is Ithaca, New York; some stuff is at home and other stuff is at the Electrical and Computer Engineering School at Cornell). Only partial description are included; if you want to know more particulars about something please send me personal email to cem14(a)cornell.edu . So here's the list: - (1) microvax II in BA123 case, 14MB RAM, KA 630-A.V1.3, M7555, M7546, RQDX3 (apparently wiped). I had planned to play with this system, but never found a SCSI interface, I have no tape drive for it, and I could not figure out rapidly enough how to load the OS from the network (it does have a DELQA card). The case is missing one of the side covers (but the card cage is intact). The rubber ring on the wheels of the case is disintegrating. Goes through self test; when you type "boot dua0" it answers "?42 NO SUCH FILE, DUA0". I also have a maxtor XT4380 and a card that is a licensed copy of the Webster WQESD which might be handy for this system. I really want this system to go to a good home. - (1) vaxstation 2000 with 6MB RAM (I believe). I'm keeping another. - (1) Decstation 5000/125 - (1) Decstation 5000/133 Note: these decstations come with one HD bracket each, one of them has a 425MB HD with netBSD 1.4.1 . I think they both have 16MB RAM, but I'm not sure. I can install netBSD 1.4.2 if you want. - (2) Decstation 5000/33 (maxine) with 400MB HD's, 16MB RAM, one of the nicer framebuffers and corresponding monitor, keyboard and mouse. Currently with Ultrix 4.2, I think. Or was it 4.4? Anyway, since Ultrix is not transferable, the buyer should erase the hard drives. NetBSD runs in them, but the nice framebuffer is not supported (yet). - (1) Decstation 2100. This machine worked non-stop as an ftp server for nearly five years. - (4) Storage Expansion Units for above; two have the same box as the Decstation 2100, another one is in the same style of a Vaxstation 4000/60 (which I also have, but I'm keeping :-) . The last one is in the same style as the box for a Vaxstation 2000. - Lots of ULTRIX documentation for above. - (2) Sun IPC's with working NVRAM, and (2) more for parts. - (3) Sparcstation 1's and 2's, some working, some non working, one or two systems should come out of all the parts... - Lots of SunOS 4.1.3/4 docs - Many HP9000/300 systems, including a 433s with 33MHz 68040, 370, 350, 340 and 320 systems, as well as HPIB hard drives, tape drives, tapes, memory, storage expansio enclosures and other stuff that goes with them. I'm keeping a 380 system with SCSI and a 25MHz 68040. Wish I could keep the 433, but it is too big. - (4) Racks for the HP9000/300 series. If you think that the BA123 case is nice, you should see these... - (3) HP9000/720's in working condition. I can install HPUX 10.20 for verification purposes if anyone is interested. - HP9000/236 system with monitor and storage expansion box. The only system that actually has an "any" key in the keyboard :-) . No software or OS, though. - HP 1000 E-series. It breaks my heart to part with this; it is the oldest system I have and I really wanted to bring it back to life. Believed to be working, but I don't have enough expertise to test it. (Frank: I have the list of ROMS somewhere; I'll post it later). Some cables for the serial cards are included. An HPIB HD came with this machine, but it seems to require service. - Exabyte 8200 with enclosure. ... more things to come. Most things are available for a small price; others, for the cost of shipping + 20%, since I'm interested in finding a good home for them. Would anybody like to pick up the microvax II? Regards, - -- Carlos Murillo-Sanchez email: cem14(a)cornell.edu 428 Phillips Hall, Electrical Engineering Department Cornell University, Ithaca, NY 14853

25 years, 9 months

1
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DEC Computer Labs available

by Anthony.Eros＠compaq.com

I have an opportunity to get up to a dozen DEC Computer Lab units. The DEC Computer Lab was a tabletop digital logic trainer (see attached picture) providing gates, flip-flops, a clock source, switch (full throw and pulsed) inputs and lamp outputs that allowed a student to wire up various logic circuits using patch cords. These units are mostly complete (some may be missing rocker switch covers or have some burned-out lamps) but do not have patch cords or documentation and are as-is. I may be able to provide a Xerox copy of a DEC computer lab workbook for copy costs if desired. We're looking at about $200-250 per unit, plus shipping/copy costs as required. I pulled the attached picture off the web to show an example of how the lab looks, I don't have a picture of the specific units that are available. If people are interested, I can collect some bucks, pick up the units, pack them up and ship 'em out. Please contact me off list and let me know if you'd like one of these lab units. -- Tony <<deccomputerlab.jpg>>

25 years, 9 months

4
4
0 0

Pentium life extermination

by xds_sigma7＠hotmail.com

Hmm, well ignoring the heat, green house gasses, etc... I see it this way: each pentium sold = more $$$ for intel, which lets them buy more companies (they apparently own the justice department already, since they're more of a monopoly than microsoft), each new company = more money = more crap by intel = soon leads to the point where I give them money every day = quickly removes my desire to live. Of course, with as crappy and buggy as their chipsets, etc. have been getting, it might be debateble whether they'll achieve total world domination or explode in their own craptacular way... This is totally opinion, Will J _________________________________________________________________________ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. Share information about yourself, create your own public profile at http://profiles.msn.com.

25 years, 9 months

2
1
0 0

Got my Sol!!!!

by bills＠adrenaline.com

My Sol came today!!!! happy happy happy happy

25 years, 9 months

1
0
0 0

am9519a

by yoda＠isr.ist.utl.pt

ChipDir has a pinout here: http://www.xs4all.nl/~ganswijk/chipdir/pin/am9519.txt They its (almost) pin-compatible with the 8259. Cheers, -- *** Rodrigo Martins de Matos Ventura <yoda(a)isr.ist.utl.pt> *** Web page: http://www.isr.ist.utl.pt/~yoda *** Teaching Assistant and PhD Student at ISR: *** Instituto de Sistemas e Robotica, Polo de Lisboa *** Instituto Superior Tecnico, Lisboa, PORTUGAL *** PGP fingerprint = 0119 AD13 9EEE 264A 3F10 31D3 89B3 C6C4 60C6 4585

25 years, 9 months

1
0
0 0

Halon dumps: a data point

by dhquebbeman＠theestopinalgroup.com

> > Is WD-40 really the primary cause of global warming? > Well, it certainly has been responsible for its share of flames. :-) -dq

25 years, 9 months

1
0
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Computer lab

by DPMURPHY＠PARTNERS.ORG

Hi Tony. Count me in ! docs too. Dave Murphy dave.murphy(a)mediaone.net 617-726-6133 (work) 781-646-1726 (home)

25 years, 10 months

1
0
0 0

PDP-11 *free* in the UK

by mrbill＠mrbill.net

An email I received @ pdp11.org: - - - -

25 years, 10 months

1
0
0 0

We have a PDP11 that needs a good home

by engdesk＠intelfaxdev.co.uk

We have three large, heavy pieces of computer equipment marked PDP11/44, TS05 +and RL02. If there is anybody in the UK who wants them, please drop us a line. +We will even give you a hand getting them into the van. - - - - If anyone's interested in that area, please get in touch with Mr. Bailey. -- Bill Bradford mrbill(a)mrbill.net Austin, TX

25 years, 10 months

1
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Halon dumps: a data point

by dhquebbeman＠theestopinalgroup.com

> The sudden pressure from the halon dump sent numerous ceiling > tiles flying, as well as large stacks of paper that were blown off the > consoles. Not everyone evacuated immediately - several folks > in safety-critical roles stuck around for ten or fifteen minutes > until the firefighters showed up with air packs that allowed others > to relieve them. Some who did stick around eventually left > in ambulances (I *hope* just to run some precautionary tests.) Back in my Prime days, when we got our Halon system, the salesman demonstrated it at their cost after installation. Triggering it deliberately, the result was as you describe. Additionally, boxes of greenbar that were open had the top layes of paper sucked out of the box, without breaking the perfs, sending it flying. He stood in there for 15 minutes, lighting matches which went out immediately, so we could see how well it worked. He drove away in his car, didn't crash or die. As it was explained to me, Halon is safe, but under temperatures that would kill anything organic, it can transform to a deadly gas. The joke was that the gas didn't kill you, but the reason you weren't supposed to be in the room if you had to trigger it manually was to avoid the shrapnel when the spheres exploded. > The good news: the computers didn't hiccup at all during all this. Actually, I think one of the CDC disk drives went offline. > Moderately good news: Halon dumps aren't instantly fatal. > Seeing as how I spend a good fraction of my day within a couple > of feet of some giant red Halon tanks in the concrete bunker - > oops, officially it's called "computer room" - this is good to know. > I'd been heavily trained that when the Halon dump alarm sounds, you > *get out*. Now I know a little more, especially about the dead-man > switch you can use to delay an electronically-triggered dump. Again, we were told, given the choice of breathing air or Halon, choose air everytime. But Halon was safe and we didn't need to worry. > This Halon is Good Stuff. Other than some grit blasted from the > ceiling tiles, there was zero debris left in the machinery. > What's the "environmentally friendly" equivalent used today? > Is there such an equivalent - something that will put out a fire, > but at the same time not damage vital equipment? You can buy small Halon extinguishers still, but only at your local civil airport for your plane. I have recently heard, however, that there is a replacment gas that does just as well, but can't recall its name. Does seem that it starts with an "H", though. regards, -doug q

25 years, 10 months

4
4
0 0

Mac slow-down utility?

by rachael_＠gmx.net

>But does this work on SE/30's? Yes as the cache is part of the 68030 cpu, the question is just where macOs supports such things or he has to find a 3part program to do that. Regards Jacob Dahl Pind Public Pgp key available on request -------------------------------------------------- = IF this computer is with us now... = =...It must have been meant to come live with us.= = (Belldandy - Goddess First class) = --------------------------------------------------

25 years, 10 months

1
0
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Halon dumps: a data point

by fmc＠reanimators.org

"Merle K. Peirce" <at258(a)osfn.org> wrote: > Broken jumper wires in a 6000 are almost always caused by excessive > levels of Halon or other CFC's in the case. Also the WD40 used to loosen the screws and lube the floppy drives. -Frank McConnell

25 years, 10 months

2
1
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DEC Computer Labs available

by kyrrin＠bluefeathertech.com

At 20:41 14-09-2000 -0500, Tony Eros wrote: >Bruce/ClassicCmp gang - > >Sorry about the binary post -- I wasn't thinking. I had been looking for >one of these labs for years and got kind of carried away when a guy called >me saying he had a bunch of them. The price is whatever I can negotiate >with the guy -- I guess I could buy them and then list them on eBay, but it Ahhhh... Ok, then, I owe you an apology for being so snappish. Definitely not what -I- had in mind. Unfortunately, I'm in no position (at this time) to offer more than $50.00 for one, and I know that's probably going to be way too low. (sigh) Ahh, me... I can't save everything, and I feel very blessed indeed to come up with the stuff I have. Best of luck with them. -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Bruce Lane, Owner and head honcho, Blue Feather Technologies http://www.bluefeathertech.com // E-mail: kyrrin(a)bluefeathertech.com Amateur Radio: WD6EOS since Dec. '77 (Extra class as of June-2K) "Our science can only describe an object, event, or living thing in our own human terms. It cannot, in any way, define any of them..."

25 years, 10 months

3
2
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DEC Computer Labs available

by Anthony.Eros＠compaq.com

Bruce/ClassicCmp gang - Sorry about the binary post -- I wasn't thinking. I had been looking for one of these labs for years and got kind of carried away when a guy called me saying he had a bunch of them. The price is whatever I can negotiate with the guy -- I guess I could buy them and then list them on eBay, but it wasn't really what I had in mind. I apologize for a list posting that really came across looking like spam -- it wasn't my intent. -- Tony > ---------- > From: Bruce Lane[SMTP:kyrrin@bluefeathertech.com] > Reply To: classiccmp(a)classiccmp.org > Sent: Thursday, September 14, 2000 9:13 PM > To: classiccmp(a)classiccmp.org > Subject: Re: DEC Computer Labs available > > At 19:12 14-09-2000 -0500, Anthony Eros wrote: > > >I have an opportunity to get up to a dozen DEC Computer Lab units. The > DEC > >Computer Lab was a tabletop digital logic trainer (see attached picture) > > <snip> > > And you also posted a binary file to the entire mailing list, > regardless > of whether or not everyone would be interested in such a unit (I would be, > but at nowhere near the price you're asking. If you or Compaq really wants > that much for them, then you'd probably do better taking them to > E-[over]pay). > > A better way to make an image file available is to put it on a web > site, > and simply post a link to it to the list. > > > -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- > Bruce Lane, Owner and head honcho, Blue Feather Technologies > http://www.bluefeathertech.com // E-mail: kyrrin(a)bluefeathertech.com > Amateur Radio: WD6EOS since Dec. '77 (Extra class as of June-2K) > "Our science can only describe an object, event, or living thing in our > own human terms. It cannot, in any way, define any of them..." >

25 years, 10 months

2
1
0 0

am9519a

by ajp166＠bellatlantic.net

From: Daniel T. Burrows <dburrows(a)netpath.net> To: classiccmp(a)classiccmp.org <classiccmp(a)classiccmp.org> Date: Thursday, September 14, 2000 10:19 PM Subject: Re: am9519a >I beat you for once. I found my 1985 AMD book and I am already scanning it. OH, a race. Anywho being able to scan it for him is good. I have the scanner but not tonight. Bed beckons. Allison

25 years, 10 months

1
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am9519a

by ajp166＠bellatlantic.net

It's a much better version of what the 8259 should be. I'd have to find my 1983 AMD databook for more. Allison -----Original Message----- From: emanuel stiebler <emu(a)ecubics.com> To: classiccmp(a)classiccmp.org <classiccmp(a)classiccmp.org> Date: Thursday, September 14, 2000 9:19 PM Subject: am9519a >Hi, >Anybody here has an am9519a datasheet (amd interrupt controller) ? >copies ? scans ? pdf file ? > >thanks a lot, >emanuel >

25 years, 10 months

1
0
0 0

Need PDP 11/03 MEM

by oliv555＠arrl.net

Anyone have a 4k M8044 or equivalent they want to sell ? Must be no larger than 4Kw. Please contact me off list. Thanks ............ Nick

25 years, 10 months

1
0
0 0

VAX 8900 booter

by oliv555＠arrl.net

Anyone know what boot device was installed in this ? I know that earlier Vaxen used PDP11s. A quick search of the net yielded little information about this model. I've got a line on one about to be dismantled and want to find out if theres anything in it worth salvaging. Don't have access to it, its 1000 miles away. But I have a friend there willing to scout it for me. Thanks. Nick

25 years, 10 months

1
0
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Halon dumps: a data point

by ethan_dicks＠yahoo.com

--- Gary Hildebrand <ghldbrd(a)ccp.com> wrote: > When I was in school I was taught that the ozone layer was in a continuous > state of degeneration/regenration, as O2 became O3 and back. Then, explain > the ozone hole over Antarctica, which has little need for CFCs as a > refrigerant. This is soooo far off topic... CFCs are distributed somewhat uniformly over the stratosphere. The reason why Antarctica is the location of the hole is due to climate... You need several things in proximity to "cause" the hole - A halogen ion (Chlorine and to a lesser concentration, Bromine), a place to work and energy. The place to work is the surface of certain sizes of ice crystals (high-altitude clouds) that only form at temps well below -60F. Sunlight is the source of energy. The ozone hole opens up in Antarctica every "spring" because that's when the sun rises (providing energy) and that's when the air is cold enough to make the proper kinds of clouds. By late October, it's warm enough that the clouds no longer form and the Polar Convergence dissapates, allowing the ozone-poor air over the continent to mix with "normal" air from higher latitudes, diluting the ozone over Australia and New Zealand, primarily. The way the model works, it's "natural" for the hole to open and close on an annual cycle. The real question is, how much of this is due to man-made sources of chlorine. The direct measurements show that CFCs released at ground level take several (18?) months to make their way to 30,000m. Since eventually the chlorine ion forms a stable compound, each one has a vast, but finite capacity to convert O3 to O2. The hypothesis is that more man-made chlorine in the stratosphere means less ozone. The data I have seen suggests that the more we pump out, the more rapidly the depletion occurs each Spring. For the skeptical: the above is not gospel written in stone. It is my understanding of the best explanation of the observed phenomena to date. I am not a scientist, but I did assist researchers in data collecting and reporting. We now return you to your regularly scheduled topics. -ethan ===== Even though my old e-mail address is no longer going to vanish, please note my new public address: erd(a)iname.com The original webpage address is still going away. The permanent home is: http://penguincentral.com/ See http://ohio.voyager.net/ for details. __________________________________________________ Do You Yahoo!? Yahoo! Mail - Free email you can access from anywhere! http://mail.yahoo.com/

25 years, 10 months

1
0
0 0

Shugart 1004

by bills＠adrenaline.com

What are the specs for a Shugart 1004 8" hard drive? Thanks, Bill

25 years, 10 months

2
1
0 0

Mac SE screen

by agraham＠ccat.co.uk

> I know that the CRT in a Mac+ is a pretty standard 9" mono > CRT, and that there's nothing odd about the pin configuration or operating > voltages. I suspect the SE's CRT is similar, but I've never had the > chance to pull one of those machines to bits. I'll do it then, and compare the numbers and boards etc, and check apple-history to make sure the resolutions were the same, which I think they were. > Incidentally, if you had 2 dead SEs and broke one of the CRTs, what > happened to the other CRT? It's not common for them to fail > electrically, although I guess it can happen. If the vacuum is still in the > CRT and the heater shows continuity (pins 3 and 4 on the B7G base) then > it's likely you'll get some kind of picture. The good old british postal service 'happened' to the other CRT. They dropped it when it was being transported and snapped the wee glass guide off the back, as well as doing some internal scraping damage with the HD carrier since it wasn't fastened in properly; I had a spare case, drive and CRT so a transplant should've been really simple! Duh. cheers!

25 years, 10 months

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Halon dumps: a data point

by CLASSICCMP＠trailing-edge.com

>>Moderately good news: Halon dumps aren't instantly fatal. >It can very nearly be. > >It's an oxygen displacer and non combustable in itself and non >posionous but it's not oxygen! It can be lethal due to oxygen >deprevation. What makes it fairly safe like you saw is that >it's quite heavy compared to air and hungs the floor. The air handlers also helped in removing the halon from the room. As I understand it, during a "normal" (electronically-triggered) Halon dump, the air handlers would have been cut off to maximize the effectiveness of the Halon. In fact, I've heard that Halon's density makes it more dangerous than if it didn't stratify. Unconscious folks, unfortunately, tend to have their noses only an inch or two from the floor... (Did I mention that my office is two floors *below* operations?) > Those that didn't leave were in my estimation quite foolish. These guys (and gals) take their jobs *very* seriously. They aren't going to let anything like the lack of oxygen get in their way! Tim.

25 years, 10 months

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OT: reply-to essay

by pete＠dunnington.u-net.com

On Sep 13, 17:08, Joe wrote: > At 10:50 AM 9/13/00 -0500, you wrote: > >In Eudora 4.3, when I hit reply, I get: > > > > At 02:59 PM 9/12/00 -0700, you wrote: > > > >and when I hit Reply to All, I get: > > > > At 02:59 PM 9/12/00 -0700, Sellam Ismail wrote: > > > >which I like better, but it's addressed to classiccmp(a)classiccmp.org twice. > > > >- John > > > > I have Eudora 3.0.1 and it does the same thing. I wonder why? Probably because in many systems like Eudora, "reply to all" replies to all the addresses in the "To:" line and the sender. The "Reply-to:" takes precedence over the "From:" and is set to "classiccmp(a)classiccmp.org", and the "To:" was also set to "classiccmp(a)classiccmp.org", it gets sent twice, and Eudora is too dumb to scan for duplicates. -- Pete Peter Turnbull Dept. of Computer Science University of York

25 years, 10 months

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Halon dumps: a data point

by CLASSICCMP＠trailing-edge.com

>> DC area") we had a memorable incident in Operations Control when >> someone (with undoubtedly good intentions) unscrewed the >> solenoid controlling the valve and dumped - without warning - >> 2500 pounds of Halon 1301 into the room in just a few >> seconds. (Operations is a *big* room. It was fitted with eight >> giant red tanks of Halon.) >So where were you in all this? I was in a computer room (aka "concrete bunker") about 50 feet under Operations, swapping around a pair of Bell 212A-style modems. I had just been in Operations about five minutes earlier... When the halon dumped, the building fire alarm was set off (I think automatically) and we bugged out within maybe 15-20 seconds. Tim.

25 years, 10 months

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RCS/RI fleamarket and open house

by aw288＠osfn.org

This is a reminder that the Retrocomputing Society of Rhode Island, Inc., will be holding a much needed flea market this Saturday, at our Millspace in Providence, RI. See our page at www.osfn.org/rcs for directions and details. What is going? Mostly small computer stuff - lots of home computers and micros, maybe a few *nix workstations. Conditions vary greatly! Prices will be rock bottom, as we need to clear out the room for more BIG machines. We have no list - rather the list will be formulated as we pick thru the stuff. The usual bunch will be around, and any and all are invited to stick around for dinner and beer. William Donzelli

25 years, 10 months

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am9519a

by dburrows＠netpath.net

>>I beat you for once. I found my 1985 AMD book and I am already scanning >it. > > >OH, a race. Anywho being able to scan it for him is good. I have the >scanner >but not tonight. Bed beckons. That is not what I meant. It amazes me how you and several others on this list can come up with so much good info at the drop of a hat. Bed beckons here but I have several more things to finish for customers tonight. Dan

25 years, 10 months

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Halon dumps: a data point

by ajp166＠bellatlantic.net

>Moderately good news: Halon dumps aren't instantly fatal. It can very nearly be. It's an oxygen displacer and non combustable in itself and non posionous but it's not oxygen! It can be lethal due to oxygen deprevation. What makes it fairly safe like you saw is that it's quite heavy compared to air and hungs the floor. Those that didn't leave were in my estimation quite foolish. Many years ago one of the halon similars (freon12) was spilled in a room I was working in, roughly 35 gallons of it due to a valve left open. I was quite blue when I was dragged out of the room as it had displaced all the air and only the fact that I'd been under the HEPA curtain doing work (also why I didn't initially notice it) there was outside make up fresh air added or I'd have been hospital fodder or worse. Freon and halon are related as florinated or halogenated hydrocarbons and both are low boiling point, heavy compared to air and non combustable. They are also both oxygen displacents makeing them dangerous in closed rooms and effective for fire control (both as a mild cooant and removing oxygen) while fairly inert. I'm sure there are varients of R134A in use or similar still used. Allison

25 years, 10 months

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am9519a

by dburrows＠netpath.net

I beat you for once. I found my 1985 AMD book and I am already scanning it. I also have it in the 1984 IC master. Dan -----Original Message----- From: ajp166 <ajp166(a)bellatlantic.net> To: classiccmp(a)classiccmp.org <classiccmp(a)classiccmp.org> Date: Thursday, September 14, 2000 9:43 PM Subject: Re: am9519a >It's a much better version of what the 8259 should be. >I'd have to find my 1983 AMD databook for more. > >Allison > >-----Original Message----- >From: emanuel stiebler <emu(a)ecubics.com> >To: classiccmp(a)classiccmp.org <classiccmp(a)classiccmp.org> >Date: Thursday, September 14, 2000 9:19 PM >Subject: am9519a > > >>Hi, >>Anybody here has an am9519a datasheet (amd interrupt controller) ? >>copies ? scans ? pdf file ? >> >>thanks a lot, >>emanuel >>

25 years, 10 months

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Altair Emulator enhancements - progress report - questions

by ajp166＠bellatlantic.net

From: Ethan Dicks <ethan_dicks(a)yahoo.com> >If anyone needs COM5025 chips, please contact me. Given my rate of >consumption, I have several lifetimes worth. Use them to make FDCs or serial mag tape systems. I have a handfull of them too. Allison

25 years, 10 months

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OT: reply-to essay

by cmcmanis＠mcmanis.com

A good read: http://www.unicom.com/pw/reply-to-harmful.html Makes a lot of points that I agree with :-) --Chuck [I apologize in advance for the thirty-eleven messages this may or may not spawn.]

25 years, 10 months

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DECstation 5000/200 battery backed NVRAM failure?

by cem14＠cornell.edu

Hi Sean; These Decstations have a window in the back through which you can see eight small LEDs that display diagnostic info when the system goes through POST. Is there any activity in the LEDs on power up? If so, what is the last pattern that you see in the LEDs? Note that in many Decstations of this kind, the cpu runs too hot due to inadequate cooling and they die. I've had this happen twice. > Date: Tue, 12 Sep 2000 16:58:47 -0400 > From: "Sean Caron" <sean(a)techcare.com> > Subject: DECstation 5000/200 battery backed NVRAM failure? > > Just wondering if anyone knows if this could be a possible problem with = > this type of machine. > > I have two DECstation 5000/200 systems. When I got them, one powered on = > but did not do > anything (no output on serial console on port 3), while one would work = > fine (console output > on port 3, seemed to be functional, etc). I did not have any external = > SCSI storage for them > at the time, so I decided to store them until I could make use of them. > > About a week ago, I finally got a SCSI drive enclosure to mount a disk = > in, so I decided to try > getting one of the systems up and running with NetBSD/pmax. To my = > surprise, however, now > both of them do nothing on power-on! I had not touched them since I had = > power-on tested them > a few months previous, so I was at a loss as to knowing what had = > happened. NetBsd is a good choice for these systems. I have two. I also have a couple of 5000/33's, but netBSD doesn't support the advanced framebuffers that they have; it only supports the built-in framebuffer, which won't talk to the monitors that came with the machines. So they're still running Ultrix (ugh). > > The only thing that I found that I even remotely suspect could be at = > fault is what looked like one > of those Dallas battery-backed clock/NVRAM chips. I was wondering if = > perhaps the battery had > died and this was preventing the system from coming up. > > > - -Sean Caron (root(a)diablonet.net) | http://www.diablonet.net > ------------------------------ -- Carlos Murillo-Sanchez email: cem14(a)cornell.edu 428 Phillips Hall, Electrical Engineering Department Cornell University, Ithaca, NY 14853

25 years, 10 months

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DECstation 5000/200 battery backed NVRAM failure?

by sean＠techcare.com

Just wondering if anyone knows if this could be a possible problem with this type of machine. I have two DECstation 5000/200 systems. When I got them, one powered on but did not do anything (no output on serial console on port 3), while one would work fine (console output on port 3, seemed to be functional, etc). I did not have any external SCSI storage for them at the time, so I decided to store them until I could make use of them. About a week ago, I finally got a SCSI drive enclosure to mount a disk in, so I decided to try getting one of the systems up and running with NetBSD/pmax. To my surprise, however, now both of them do nothing on power-on! I had not touched them since I had power-on tested them a few months previous, so I was at a loss as to knowing what had happened. The only thing that I found that I even remotely suspect could be at fault is what looked like one of those Dallas battery-backed clock/NVRAM chips. I was wondering if perhaps the battery had died and this was preventing the system from coming up. I was hoping someone else might have run into a similar problem and might have a few pearls of wisdom to share. Thanks, -Sean Caron (root(a)diablonet.net) | http://www.diablonet.net

25 years, 10 months

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Mac SE screen

by agraham＠ccat.co.uk

Hi folks, In trying to make 1 good SE out of 2 bad ones I managed to send the screen to decompression hell while unbending a bent pin on the yoke.....grrr.....so, before I start dismantling other dead Macs the question is can I use the screen from either a Plus or Classic? And obvious 2nd question - anyone want the bones of an SE for possible macquarium use or something along those lines? There's only the case, PSU, dead screen and analogue board left though. cheers! adrian/witchy www.binarydinosaurs.co.uk - 80's computer collection

25 years, 10 months

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Mac SE screen

by agraham＠ccat.co.uk

After much searching for the right size tool I eventually accepted defeat and bought a specific tool (well, in reality it's just a 15" T15 driver) called a MacCracker from RS Components for ukp5.95. Having done that however you sharp discover the other Torx bits within a Mac that need (or would be fiddly without) said long driver so it's worth the money. a > -----Original Message----- > From: Cameron Kaiser [mailto:spectre@stockholm.ptloma.edu] > Sent: 13 September 2000 14:59 > To: classiccmp(a)classiccmp.org > Subject: Re: Mac SE screen > > > > In trying to make 1 good SE out of 2 bad ones I managed to > send the screen > > to decompression hell while unbending a bent pin on the > > yoke.....grrr.....so, before I start dismantling other dead Macs the > > question is can I use the screen from either a Plus or Classic? > > And obvious 2nd question - anyone want the bones of an SE > for possible > > macquarium use or something along those lines? There's only > the case, PSU, > > dead screen and analogue board left though. > > Since you've successfully(? :-) disassembled yours, what did > you use for > those top recessed screws? They look like an Allen wrench > would fit but > it doesn't seem to be working on mine. The lower ones appear > to be Torx. > > Incidentally, does Finder 6.0.2 take 1GB disks? (hope hope hope) > > -- > ----------------------------- personal page: > http://www.armory.com/~spectre/ -- > Cameron Kaiser, Point Loma Nazarene University * > ckaiser(a)stockholm.ptloma.edu > -- This signature is free of dihydrogen monoxide! Ban it now! www.dhmo.org ----

25 years, 10 months

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Mac slow-down utility?

by rachael_＠gmx.net

>Its driving me nuts, but I really do remember that there was a REAL >slowdown utility that ran I think on the Mac II era machines and wasted >time so that your machine ran like either a SE or Plus, and it was both for >fun and for testing code. Can`t you disable the cpu cache somehow ? I know from my Amigas that doing so slows it down to a near crawl. Regards Jacob Dahl Pind Public Pgp key available on request -------------------------------------------------- = IF this computer is with us now... = =...It must have been meant to come live with us.= = (Belldandy - Goddess First class) = --------------------------------------------------

25 years, 10 months

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GA 3345 safe

by geoffrob＠stmarks.pp.catholic.edu.au

Hi guys & gals, Passed on the responses from the group here to the guy in Qld regarding the GA 3345. It jolted his interest level, and it appears it may have a safe home already. Got the following response. Quote:- "I just rang the guy from yesterdays generally distributed e-mail and he says that the unit has absolutely no documentation, nor any sign what operating system it ran, and he is only guessing by saying it is over 25 years old. He has been approached already by the "museum" run by the UQ Computing department and they have indicated they will take the complete thing off them. (This museum is just a collection of PDP and other early stuff in the foyer of one level of their building). Currently it is in the Qld Dept of Natural Resources Offices, Brisbane, and was being held by someone starting a surveying museum, but they realised this had nothing specifically to do with surveying. He has said he will contact me if the UQ offer falls through." End Quote. Just to make sure it won't become razor blades, I've made a firm offer to take it if the UQ proposal does collapse in a heap, just in case...... Cheers Geoff Roberts Computer Systems Manager Saint Mark's College Port Pirie, South Australia geoffrob(a)stmarks.pp.catholic.edu.au netcafe(a)tell.net.au ICQ: 1970476

25 years, 10 months

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Altair Emulator enhancements - progress report - questions

by ethan_dicks＠yahoo.com

--- ajp166 <ajp166(a)bellatlantic.net> wrote: > From: Dwight Elvey <elvey(a)hal.com> > > > > There was no standard port used for serial I/O. and even if > >there was, the device could have been a AY-3-1015, a 8251 or > >a 8250. > > Wrong. The standard devices were usually AY-3-1015/COM2502 > based I never knew anything about the COM2502, but I have a wad of information (and spares) of the COM5025 - a sync serial chip from a (ISTR) DEC DUP-11 and later, the Software Results COMBOARD-I and COMBOARD-II (later models use the Zilog Z8530). If anyone needs COM5025 chips, please contact me. Given my rate of consumption, I have several lifetimes worth. -ethan ===== Even though my old e-mail address is no longer going to vanish, please note my new public address: erd(a)iname.com The original webpage address is still going away. The permanent home is: http://penguincentral.com/ See http://ohio.voyager.net/ for details. __________________________________________________ Do You Yahoo!? Yahoo! Mail - Free email you can access from anywhere! http://mail.yahoo.com/

25 years, 10 months

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VAX panic - buried models?

by ajp166＠bellatlantic.net

>OK, I'd thought that the HWID was specific to that particular CPU board such >as it is on a Sun Sparc. Well it's specific in that a MVII will not ahve the same number as MVIII. >However, some 3rd party vendors use licensing schemes based on the MAC >Address of the ethernet board. I know on Linux/x86 this can be changed. >Can this be changed on VMS? My previous incorrect scenerio holds true if >you're running software such as this. Would work maybe. VMS can change MAC and I believe it does for DECNET. Allison

25 years, 10 months

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Mac slow-down utility?

by spectre＠stockholm.ptloma.edu

Incidentally, is there some sort of "Mac slowdown" utility? I have a Mac program running on my SE/30 that was intended for the Mac Plus, and it runs way too quickly on the SE (it's a game, of course -- who remembers ZeroGravity?). -- ----------------------------- personal page: http://www.armory.com/~spectre/ -- Cameron Kaiser, Point Loma Nazarene University * ckaiser(a)stockholm.ptloma.edu -- Don't let 'em drive you crazy when it's within walking distance. -----------

25 years, 10 months

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