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

by ajp166＠bellatlantic.net

From: blstuart(a)bellsouth.net <blstuart(a)bellsouth.net> >In message <Pine.LNX.4.33.0204180631001.27156-100000(a)siconic.com>, Sellam Ismai >l writes: >>How about calling it a Babbage? > >That was my thought as well, with possible runners up of >the Zuse, the Aiken, the Eckert or the Mauchley. > >Brian L. Stuart Why not use them all! A box is HeightxWidthxDepth, so why not computers measured in ZusexEckartxAikenxMauchley with the possible corrosponding dimensions in real terms of memory, speed, storage, wordsize or some such. Allison

23 years, 8 months

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One-upsmanship

by ajp166＠bellatlantic.net

From: Carlos Murillo <carlos_murillo(a)epm.net.co> >>"My computer requires more tons of AC cooling than yours" >> >>Jay West > >"My computer has broken more vertebrae than yours" >-------------------------------------------------------------- >Carlos E. Murillo-Sanchez carlos_murillo(a)nospammers.ieee.org Me: My computer, all mine! Allison

23 years, 8 months

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Guys take a look at this qbus cpu board on Ebay :-)

by mcguire＠neurotica.com

On April 19, Zane H. Healy wrote: > There is no shortage of real PDP-11's around here, the biggest problem I Huh? Where are you? I think it's time for a road trip. -Dave -- Dave McGuire "Mmmm. Big." St. Petersburg, FL -Den

23 years, 8 months

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who says great deals can't be had on ebay!

by jwest＠classiccmp.org

I was going through the Ebay completed items just out of boredom, and noticed that an HP2748B paper tape reader went for $5.00 back on April 6th. That is one HECK of a deal!!! About a year and a half ago I saw (much to my chagrin, long story) an HP 7900A disc drive in working condition go for about $100 bucks. I missed the 2748B, but wouldn't have bid anyways, I already have two :) Jay West

23 years, 8 months

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Office Max events

by LFessen106＠aol.com

In a message dated 4/19/02 1:36:00 AM Eastern Daylight Time, vance(a)ikickass.org writes: > One word I am fond of throwing around in the presence of retail management > is "misrepresentation". It usually gets their attention. Even at > Well, if you find a discrepency in a stores fliers, it's not only false advertisement (which most stores could care less about) but the big one to throw at them is it's also Mail Fraud (a federal offence)... -Linc. In The Beginning there was nothing, which exploded - Yeah right... Calculating in binary code is as easy as 01,10,11.

23 years, 8 months

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AIM ROMs

by paul＠wccnet.org

I have the AIM monitor in ASCII format. Send me a message off-list if you want a copy e-mailed to you. Paul R. Santa-Maria Monroe, Michigan USA

23 years, 8 months

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QBUS VAX and M7941 under VMS - info needed!

by cdl＠proxima.ucsd.edu

> From owner-classiccmp(a)classiccmp.org Thu Apr 18 15:17:12 2002 > X-Authentication-Warning: ns2.ezwind.net: majordom set sender to owner-classiccmp(a)classiccmp.org using -f > Date: Thu, 18 Apr 2002 22:38:24 +0100 > From: Dave Woodman <dave(a)naffnet.org.uk> > Organization: The Nicely Naff Network > X-Accept-Language: en > To: classiccmp(a)classiccmp.org > Subject: QBUS VAX and M7941 under VMS - info needed! > Content-Transfer-Encoding: 7bit > Sender: owner-classiccmp(a)classiccmp.org > Reply-To: classiccmp(a)classiccmp.org > > Hi all, > > I have a MicroVAX (BA123 enclosure, KA650 CPU) that I would like > to put to work... to this end I have two M7941 (DRV11) parallel I/O > cards that I would like to bring into service. The Micronotes say that > this card is compatible with the 22-bit QBUS, and I have the Field > Service print set so I can set the CSR and vectors to appropriate > values. > > Of course, VMS does not have a driver for these cards, but I am > not too frightened by the prospect of a little code - here lies the > problem! Can anyone tell me just how this card maps into the I/O space, > given the CSR? I would like to know just where to read from and write to > in order the drive the beastie... It's sort of standard DEC for a parallel interface. CSR + 2 is the output buffer, connected to connector J1 Bits in CSR+2 are read/write to the CPU besides the data lines, J1 has some control bits REQA which maps to CSR<15> and is read-only NEWDATA, pulse output by CPU writing to CSR+2, which should be used to clear REQA CSR1 which is CSR<1>, read-write for device control CSR + 4 is the input buffer, connected to connector J2 Bits in CSR+4 are read-only to the CPU J2 has control bits: REQB mapped to CSR<7>, read-only DATATRANS, pulse output by CPU reading CSR+4, should be used to clear REQB CSR0 which is CSR<0>, read-write for device control CSR has the usual INT_ENB A at <6> and INT_ENB A at <5> INT_ENB AND REQ makes an interrupt. Interrupt A at VEC, B at VEC+4. Information from "microcomputer interfaces handbook 1980" EB-17723-20 carl -- carl lowenstein marine physical lab u.c. san diego clowenstein(a)ucsd.edu

23 years, 8 months

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QBUS VAX and M7941 under VMS - info needed!

by Antonio.Carlini＠riverstonenet.com

> Of course, VMS does not have a driver for these cards, but I am >not too frightened by the prospect of a little code - here lies the >problem! Can anyone tell me just how this card maps into the I/O space, >given the CSR? I would like to know just where to read from and write to >in order the drive the beastie... The necessary manuals are all available at: http://www.openvms.compaq.com:8000/ Start with the OpenVMS VAX Device Support Manual ( http://www.openvms.compaq.com:8000/73final/documentation/PDF/OVMS_VAX_SUP_GD .pdf ) and the OpenVMS VAX Device Support Reference Manual ( http://www.openvms.compaq.com:8000/73final/documentation/PDF/OVMS_VAX_SUP_GD .pdf ) Both of these are now in the archived section. The second one of these is basically an introduction to writing a device driver for OpenVMS VAX and includes probably all the info you need for the Qbus mapping in Chapter 14. The Coinnect to Interrupt stuff in Chapter 21 may be a useful introduction if you've not done a full driver before. It will show you how to map the registers and respond to device interrupts. Once you can do that you should have the hang of talking to devices on the Qbus and can move on to doing a driver proper. Antonio

23 years, 8 months

2
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The Unit (was: One-upsmanship (was: Secret Mac))

by dwightk.elvey＠amd.com

>X-Server-Uuid: e4c4d26a-1188-11d5-b029-00508be35655 >X-Authentication-Warning: ns2.ezwind.net: majordom set sender to owner-classiccmp(a)classiccmp.org using -f >From: "Carlini, Antonio" <Antonio.Carlini(a)riverstonenet.com> >To: "'classiccmp(a)classiccmp.org'" <classiccmp(a)classiccmp.org> >Subject: RE: The Unit (was: One-upsmanship (was: Secret Mac)) >Date: Thu, 18 Apr 2002 15:23:41 -0700 >MIME-Version: 1.0 >X-WSS-ID: 10A18E9F850016-01-02 >Content-Transfer-Encoding: 7bit > > > >Since when has 'Celsius' been an SI unit? And since when has the > >abreviation for it been 'C'? C _is_ used for an SI unit -- the >Coulomh. > > Twas a coulomb when I were at skool ... > My Calculator says C is 299792458. Dwight

23 years, 8 months

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King's Quest and the PCjr

by spectre＠stockholm.ptloma.edu

Would someone who has the PCjr King's Quest disks tell me which files are on which disk? (Or, if it's just one disk, what files are on it?) I really want to get this working! :-) -- ----------------------------- personal page: http://www.armory.com/~spectre/ -- Cameron Kaiser, Point Loma Nazarene University * ckaiser(a)stockholm.ptloma.edu -- The steady state of disks is full. -- Ken Thompson -------------------------

23 years, 8 months

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Secret Mac

by mythtech＠mac.com

>Does anybody know if motherboard removal was >a common practice in decomissioning tempest computers? Maybe the people that were using it were super paranoid? There is a company near here dumping PCs right now, and each one has to have its motherboard snapped in half before it hits the dumpster.... because they are afraid a rival company will get the PC and find info left behind on the motherboard. (it really just tells me some ignorant person is in charge of the disposal, but either way, it is their policy right now). Hard Drives are being reformatted with one of those secure wiping programs and then opened and smashed. Of course, I can't personally verify this, as the info came to me from a friend, but with some of the moron IT directors I have met, I don't hesistate to believe it. -chris <http://www.mythtech.net>

23 years, 8 months

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20mA serial cable connector

by cdl＠proxima.ucsd.edu

> Date: Thu, 18 Apr 2002 20:59:26 -0400 > To: classiccmp(a)classiccmp.org > From: Joe <rigdonj(a)cfl.rr.com> > Subject: Re: 20mA serial cable connector > In-Reply-To: <3.0.5.32.20020418171133.00a29500(a)ubanproductions.com> > > Tom, > > Can you post a picture of one? One of the places that I scrounge at has baskets full of cut off cable connectors. I might be able to find some there. > > > Joe > > At 05:11 PM 4/18/02 -0500, you wrote: > >I'm looking for a supply of the uncommon DEC 20mA current loop male connector > >shells used to plug into DEC VT100s, Wyse 85s, and the like. It is also used > >to plug into the H744 (and other) power supplies. > > > >The DEC part number is 12-09340-00 which might also be a Mate-N-Lock > >1-480460-0 > > > >I would like to find 12-24 of them. I am assuming that if I can find the > >shells, I can find a pin from either AMP or Molex which will work. Some web browsing shows me that Mate-N-Lock pins are still available, but the flat connector shells seem to be gone. On the Compaq web site there are some cables with Mate-N-Lock on one end and various other connectors on the other end, for use with LA30's. I tried to search the Compaq site for Mate-N-Lock but it crashed my Netscape 6, as usual. carl -- carl lowenstein marine physical lab u.c. san diego clowenstein(a)ucsd.edu

23 years, 8 months

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QBUS VAX and M7941 under VMS - info needed!

by cdl＠proxima.ucsd.edu

> Date: Thu, 18 Apr 2002 17:45:50 -0700 > From: cdl(a)proxima.ucsd.edu (Carl Lowenstein) > To: classiccmp(a)classiccmp.org > Subject: Re: QBUS VAX and M7941 under VMS - info needed! > > It's sort of standard DEC for a parallel interface. > > CSR + 2 is the output buffer, connected to connector J1 > Bits in CSR+2 are read/write to the CPU > > CSR + 4 is the input buffer, connected to connector J2 > Bits in CSR+4 are read-only to the CPU > > CSR has the usual INT_ENB A at <6> and INT_ENB A at <5> > INT_ENB AND REQ makes an interrupt. Interrupt A at VEC, B at VEC+4. > > Information from "microcomputer interfaces handbook 1980" > EB-17723-20 Add-on to my own post. While driving home I remembered something that has bothered me about DEC parallel interfaces (DR11, DRV11) for nearly 30 years. Why couldn't they make the programming model the same as the single-channel serial interface? Input control CSR Input data CSR+2 Output control CSR+4 Output data CSR+6 Then you could use the same software driver for an 8-bit parallel device or an 8-bit serial device. Just plug in a different bit of hardware. Actually the Heathkit 16-bit parallel Qbus card was like that. carl -- carl lowenstein marine physical lab u.c. san diego clowenstein(a)ucsd.edu

23 years, 8 months

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VCF Apple-1 Auction 4/19-4/21

by mythtech＠mac.com

>The VCF is auctioning off another Apple-1 computer. I assume when the auction has concluded, you'll relay what it sold for. Think I can get it for 25 bucks? I'll also cover shipping :-D -chris <http://www.mythtech.net>

23 years, 8 months

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BIE 4410

by pat＠cart-server.purdueriots.com

It's been spoken for a few times over. Now I wish I had a couple of them. -- Pat

23 years, 8 months

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HP 9114B floppy & Pmac dos card & Annex 2

by pat＠cart-server.purdueriots.com

I need to get rid of some more stuff: - HP 9114 HP-IL floppy drive, two rechargable battery packs (untested) - Powermac 6100 DOS (486) card with 6100 riser, but no dongle - Encore Annex 2 Terminal Server, pair of Amphelon 50pin (SCSI-I style) ports on its back Best offers by 1400 Zulu (7PM CDT) on 4/19/02 gets it. Best bid of at least $10 gets an item. Anything not sold goes to ePay. (more work for me :( ) Help support a 'poor college student' (me) :) -- Pat

23 years, 8 months

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Secret Mac

by mythtech＠mac.com

>It had a VERY expensive 1553 Bus analyzer card in it and ALL the >(Classified) software was still on the drive. I offloaded 1553 files and >wiped and reformatted the drive. but never even peeked at those classified files... right? (wink wink nudge nudge) -chris <http://www.mythtech.net>

23 years, 8 months

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Download CD images for RSX-11 and RT-11 Freeware CDs from Tim Shoppa

by cdl＠proxima.ucsd.edu

> Date: Tue, 16 Apr 2002 09:55:58 -0400 > From: "Jerome H. Fine" <jhfinepw4z(a)compsys.to> > Organization: Just Sufficient > X-Accept-Language: en > To: "William R. Buckley" <hhacker(a)ev1.net>, > "classiccmp(a)classiccmp.org" <classiccmp(a)classiccmp.org> > Subject: Download CD images for RSX-11 and RT-11 Freeware CDs from Tim Shoppa > > Jerome Fine replies: > > It took a week of trying, but I have finally downloaded all three CD > images for RSX-11 and RT-11 from: > ftp://ftp.trailing-edge.com/pub/cd-images/ > Note also that the file MD5SUMS seems to contain checksum > values, but I don't know how to use these values or produce them > myself to check if my files are correct. Can anyone help? There is a program "md5sum" that comes with GNU textutils. It will run on most Unix or Unix-like systems. I suspect that with a fair amount of effort it could be made to run on RT11, compiled with DECUS C, but I haven't really looked at that.. When you run mda5sum on a file it produces a 32-hex-digit "message digest". This should match the one that you downloaded from the original source. carl -- carl lowenstein marine physical lab u.c. san diego clowenstein(a)ucsd.edu

23 years, 8 months

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NeXT (Almost-up-and-running-now) Laser Printer

by cdl＠proxima.ucsd.edu

> From: Christopher Smith <csmith(a)amdocs.com> > To: "'classiccmp(a)classiccmp.org'" <classiccmp(a)classiccmp.org> > Subject: RE: NeXT (Almost-up-and-running-now) Laser Printer > Date: Thu, 18 Apr 2002 13:54:27 -0500 > > > -----Original Message----- > > From: Erik S. Klein [mailto:classiccmp@mail.vintage-computer.com] > > > If the printer you have is the NeXT 400 dpi unit (I don't > > have the model number in front of me) then I picked up > > several from the gentleman who was selling them cheap in the > > Bay Area. If you need one for spares or as a replacement > > I'll be happy to sell it for what I paid for it ($15) plus > > shipping. The ones I have are in excellent (untested) shape > > with some looking almost new. . . > > Well, thanks for the offer. We'll see what happens here. I'm > still hopeful of getting it fixed, and if not, I may be able to > get a replacement locally. I happen to know (from the guy who > runs the place) that the local scrapyard is overrun with these ;) Just remember that all of the NeXT printers are getting on in age, and most of them have one or more of the fatal symptoms: Input roller has dried out so paper doesn't go in. Output gear has stripped so paper doesn't come out. There are other interesting problems that some printers have, such as the "door open" sensing switch insisting that the door is not closed. I don't know how many printers you would have to merge to get one that worked. Randy Rencsok's web site has lots of good documentation on disassembling NeXT printers. < http://www.channelu.com/NeXT/Black > carl -- carl lowenstein marine physical lab u.c. san diego clowenstein(a)ucsd.edu

23 years, 8 months

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PRO/Venix

by mbg＠TheWorld.com

In case anyone is interested, I was organizing some of my collection today and came across a set of Pro/Venix documentation in original DEC/Professional boxes and the V2.0 release of Pro/Venix (with the developers toolkit). I'm hoping the disks (RX50s) are still readable... If they are, I'll try to make image copies and get them to the PUPS archive... any place else I should consider? Megan Gentry Former RT-11 Developer +--------------------------------+-------------------------------------+ | Megan Gentry, EMT/B, PP-ASEL | Internet (work): gentry!zk3.dec.com | | Unix Support Engineering Group | (home): mbg!world.std.com | | Compaq Computer Corporation | addresses need '@' in place of '!' | | 110 Spitbrook Rd. ZK03-2/T43 | URL: http://world.std.com/~mbg/ | | Nashua, NH 03062 | "pdp-11 programmer - some assembler | | (603) 884 1055 | required." - mbg KB1FCA | +--------------------------------+-------------------------------------+

23 years, 8 months

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The Unit (was: One-upsmanship (was: Secret Mac))

by Antonio.Carlini＠riverstonenet.com

>Since when has 'Celsius' been an SI unit? And since when has the >abreviation for it been 'C'? C _is_ used for an SI unit -- the Coulomh. Twas a coulomb when I were at skool ...

23 years, 8 months

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NeXT (Almost-up-and-running-now) Laser Printer

by mcguire＠neurotica.com

On April 18, Tony Duell wrote: > I am going to guess this is based on a Canon print engine. If so, then > the first thing to do is to indentify which one. The PrinterWorks > (http://www.printerworks.com/) used to have pictures of printers, > exploded diagrams of the mechanism, etc on their website. They probably > still do. > > Alternatively, does it take the same toner cartridge as any more common > (HP, for example) printer? The NeXT laser printer is a [slightly] modified Canon SX engine. -Dave -- Dave McGuire "Mmmm. Big." St. Petersburg, FL -Den

23 years, 8 months

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AIM-65 displays

by RCini＠congressfinancial.com

Dick: No, I don't have a machine-readable version of the listing. I scanned the pages directly to PDF (using Acrobar Writer) but I never got around to taking those scans and OCRing them to a text file (it was on the RSN list). I did the PC BIOSes and the VIC Kernal ROM, The KIMs were done by others. Rich ========================== Richard A. Cini, Jr. Congress Financial Corporation 1133 Avenue of the Americas 30th Floor New York, NY 10036 (212) 545-4402 (212) 840-6259 (facsimile) -----Original Message----- From: Richard Erlacher [mailto:edick@idcomm.com] Sent: Thursday, April 18, 2002 1:04 PM To: classiccmp(a)classiccmp.org Subject: Re: AIM-65 displays You wouldn't happen to have a machine-readable (non-PDF) just text file of the monitor listing, whould you? Dick ----- Original Message ----- From: "Cini, Richard" <RCini(a)congressfinancial.com> To: <classiccmp(a)classiccmp.org> Sent: Thursday, April 18, 2002 8:41 AM Subject: RE: AIM-65 displays > If you look on my Web site, I have scans of all of the AIM manuals as well > as the monitor listing, schematics and ROM dumps. > > http://highgate.comm.sfu.ca/~rcini/classiccmp/my_docs.htm > > Rich > > ========================== > Richard A. Cini, Jr. > Congress Financial Corporation > 1133 Avenue of the Americas > 30th Floor > New York, NY 10036 > (212) 545-4402 > (212) 840-6259 (facsimile) > > > -----Original Message----- > From: Richard Erlacher [mailto:edick@idcomm.com] > Sent: Thursday, April 18, 2002 10:17 AM > To: classiccmp(a)classiccmp.org > Subject: Re: AIM-65 displays > > > I'd be happy to scan the content and make it available as a G4 TIF file. > Now, > I probably have that stuff somewhere as well, but ... > > Joe Rigdon once said he had an AIM complete with the BASIC and ASM roms. > I'd > assume that the assembler uses the syntax in which the ROMs are written, > which > would help. ISTR he wanted to make the ROMs available, but didn't have an > EPROM programmer at the time, and didn't know how to dump the ROMs without > one. > > Let me know off-list how we can handle the listings. > > Dick > > ----- Original Message ----- > From: "Jim Kearney" <jim(a)jkearney.com> > To: <classiccmp(a)classiccmp.org> > Sent: Thursday, April 18, 2002 8:01 AM > Subject: Re: AIM-65 displays > > > > I have the listings. It's a small book called "AIM 65 Monitor Program > > Listing", and includes all the I/O routines, the editor and > > assembler/disassembler. If you don't have it, I could lend it to you. > > > > Jim > > > > > >> I'll have a look to see whether I have any ROM listings. I > > > >> thought I did, > > > > > > > > > >

23 years, 8 months

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NeXT (Almost-up-and-running-now) Laser Printer

by mcguire＠neurotica.com

On April 18, Christopher Smith wrote: > I'm certain that this problem comes from the printer setting > too long, and making an indentation in the rubber on the > roller. Has anyone had success in repairing this kind of > thing? The pickup roller is supposed to have a flat spot in it...if that's what you're noticing, it's normal. > The printouts have black in the wrong places sometimes; > fused, but -- well, basically it looks like a bad photocopy :) > Sometimes the misplaced ink will have an imprint from another > part of the same page, or from the previous page. > > There are also "splotches" of white here and there in the > good printouts where there should be some toner. > > I imagine something may be dirty, but not knowing a lot about > laser printers (aside from keep away from the fuser when it's > operating...), I don't' know where to start looking, nor would > I necessarily know how to clean things up if I found the right > spot. CX and SX engines sometimes have problems with crap collecting on the corona wires...especially the transfer corona underneath the paper path. Look for a trough about 0.5" wide with a hair-thin wire running through the middle of it, possibly shielded with a sparse wrapping of a plastic thread that looks like fishing line. Clean this VERY carefully by rubbing an alcohol-saturated cotton swap back and forth over it. That might help a bit. If not, it may be the drum precharge corona wire, which is inside the toner cartridge. There should be a little green plastic tool with a strangely-shaped felt tip stuck into a clip inside the printer. Stick this into the transfer corona wire access slot on the toner cartridge and run it back and forth. It's self-aligning due to the shape of the green plastic tool and grooves in the toner cartridge...there's only one place and direction in which it'll fit correctly. (sorry for the lack of detail here, this is difficult to describe textually) Give that a shot and see how things clean up. If that doesn't help, contact me and I'll see if I can dig up anything else from my dusty memories Canon CX and SX print engine repair training back in 1987. -Dave -- Dave McGuire "Mmmm. Big." St. Petersburg, FL -Den

23 years, 8 months

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AIM-65 monitor source reconstruction

by dwightk.elvey＠amd.com

>From: "Hans B Pufal" <hansp(a)aconit.org> > >On last thing for tonight, you can download the latest version of the >text file at www.aconit.org/hbp/AIM65/monitor.txt > >Good night folks, > > -- hbp > > That's no fair, your picking all the small ones but you missed page 13. Dwight

23 years, 8 months

1
0
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NEC V20 and Rainbow (was: NEC V-20 was: Native CP/M)

by acme_ent＠bellsouth.net

> From: Lawrence Walker <lgwalker(a)mts.net> > I keep hoping I'll find a cheap stash of V-20s to use on about 3 or 4 of my > boxes, altho they come up fairly reasonable on EPay from time to time. Is US $2.95 reasonable? Jameco sells this ancient IC. Glen 0/0

23 years, 8 months

2
1
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missing chips on "new" UNIBUS boards ...

by gunther＠aurora.regenstrief.org

Hi, gee, in my zealous bargain-hunts I keep being burned. Two bad CPUs before and now I thought I had a bargain with two UDA50 sets another KFQSA and a DEUNA set. However, as I unpacked yesterday, I noticed that the KFQSA was missing one socketed chip (approx 40 pin DIL, black right in the middle.) Also, one of the UDA50 boards the M7.65 I think is missing a whole set of 10 or so socketed chips all of equal size on the side. My hope is that those are ROMs that may not be needed unless booting from KFQSA or DEUNA is required, but that's a very remote hope. Can they be replaced? Probably makes no sense. grrr, -Gunther -- Gunther Schadow, M.D., Ph.D. gschadow(a)regenstrief.org Medical Information Scientist Regenstrief Institute for Health Care Adjunct Assistant Professor Indiana University School of Medicine tel:1(317)630-7960 http://aurora.regenstrief.org

23 years, 8 months

6
8
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NeXT (Almost-up-and-running-now) Laser Printer

by csmith＠amdocs.com

> -----Original Message----- > From: Dave McGuire [mailto:mcguire@neurotica.com] > little green plastic tool with a strangely-shaped felt tip stuck into After reading this again, I find myself if the "strangely-shaped felt tip" is anything like the "strange flavored chicken" I always see on the menus of oriental restaurants... Chris Christopher Smith, Perl Developer Amdocs - Champaign, IL /usr/bin/perl -e ' print((~"\x95\xc4\xe3"^"Just Another Perl Hacker.")."\x08!\n"); '

23 years, 8 months

1
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The Unit

by csmith＠amdocs.com

> -----Original Message----- > From: Fred Cisin (XenoSoft) [mailto:cisin@xenosoft.com] > I'm sorry, and it's not very considerate on my part, but I have little > sympathy for those who want their mass produced recent model > computer to > end up as a TERAZuse! My thinking was more along the lines of a Zuse1 being in the TeraZuse range... The problem is that it would need to have a really strong curve to make modern windows boxen end up in the fractional AttoZuse range where they belong. ;) Chris Christopher Smith, Perl Developer Amdocs - Champaign, IL /usr/bin/perl -e ' print((~"\x95\xc4\xe3"^"Just Another Perl Hacker.")."\x08!\n"); '

23 years, 8 months

1
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One-upsmanship (was: Secret Mac

by mmcfadden＠cmh.edu

Sellam says >If a formula for determining classic computer cool factor gets finalized, >I'd like to create a calculator script on the VCF website so that people >can enter their parameters and have their score automatically computed. > >We need a unit or label for this number. How about CCU = Classic Computer Units Mike

23 years, 8 months

1
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AIM-65 displays

by dwightk.elvey＠amd.com

>Hi > I have dibbs on page 56 ( I'm a little lazy ). >Dwight > > > There, that wasn't so bad ;) Dwight I/O SUBROUTINES PA00-J001A......PAGE 0056 LINE # LOC CODE LINE 2764 F2BB 4C 8B F2 JMP ROUT1 ;RESTORES REGS 2765 F2BE EA NOP 2766 F2BF EA 2768 F2C0 ;SET SPEED FROM NORMAL TO 3 TIMES NORMAL 2769 F2C0 AD 08 A4 SETSPD LDA TSPEED ;SPEED FLG 2770 F2C3 6A ROR A ;NORMAL OR 3* NORM 2771 F2C4 A0 0C LDA #12 2772 F2C6 90 02 BCC SETSP1 2773 F2C8 A9 04 LDA #4 2774 F2CA 8D 0A A4 SETSP1 STA NPUL 2775 F2CD A9 12 LDA #18 2776 F2CF 90 02 BCC SETSP2 2777 F2D1 A9 06 LDA #6 2778 F2D3 8D 0C A4 SETSP2 STA TIMG+1 2779 F2D6 60 RTS 2780 F2D7 .FILE A3/2

23 years, 8 months

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NeXT (Almost-up-and-running-now) Laser Printer

by csmith＠amdocs.com

> -----Original Message----- > From: Erik S. Klein [mailto:classiccmp@mail.vintage-computer.com] > If the printer you have is the NeXT 400 dpi unit (I don't > have the model number in front of me) then I picked up > several from the gentleman who was selling them cheap in the > Bay Area. If you need one for spares or as a replacement > I'll be happy to sell it for what I paid for it ($15) plus > shipping. The ones I have are in excellent (untested) shape > with some looking almost new. . . Well, thanks for the offer. We'll see what happens here. I'm still hopeful of getting it fixed, and if not, I may be able to get a replacement locally. I happen to know (from the guy who runs the place) that the local scrapyard is overrun with these ;) Chris Christopher Smith, Perl Developer Amdocs - Champaign, IL /usr/bin/perl -e ' print((~"\x95\xc4\xe3"^"Just Another Perl Hacker.")."\x08!\n"); '

23 years, 8 months

1
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NeXT (Almost-up-and-running-now) Laser Printer

by csmith＠amdocs.com

Ok, I reset the netinfo database -- now as soon as I can get it to give me a login prompt again instead of kicking me into the 'me' account at boot I'll be in business there, but my NeXT b&w laser printer is somewhat cranky. Having not been used for years, I can see how this might be... Here are it's problems: Paper feed roller doesn't like to work well all the time. I'm certain that this problem comes from the printer setting too long, and making an indentation in the rubber on the roller. Has anyone had success in repairing this kind of thing? The printouts have black in the wrong places sometimes; fused, but -- well, basically it looks like a bad photocopy :) Sometimes the misplaced ink will have an imprint from another part of the same page, or from the previous page. There are also "splotches" of white here and there in the good printouts where there should be some toner. I imagine something may be dirty, but not knowing a lot about laser printers (aside from keep away from the fuser when it's operating...), I don't' know where to start looking, nor would I necessarily know how to clean things up if I found the right spot. Any ideas? Chris Christopher Smith, Perl Developer Amdocs - Champaign, IL /usr/bin/perl -e ' print((~"\x95\xc4\xe3"^"Just Another Perl Hacker.")."\x08!\n"); '

23 years, 8 months

3
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NeXT (Almost-up-and-running-now) Laser Printer

by cdl＠proxima.ucsd.edu

> From: Christopher Smith <csmith(a)amdocs.com> > To: "Classiccmp (E-mail)" <classiccmp(a)classiccmp.org> > Subject: NeXT (Almost-up-and-running-now) Laser Printer > Date: Thu, 18 Apr 2002 09:25:54 -0500 > > Ok, I reset the netinfo database -- now as soon as I can > get it to give me a login prompt again instead of kicking > me into the 'me' account at boot I'll be in business there, As the user "me" give yourself a password. You can do this in the standard Unix way from a terminal window command line, or with the "Preferences" GUI. Then log out. This will activate the GUI login window. Now log in as root, and give root a password. > but my NeXT b&w laser printer is somewhat cranky. > Having not been used for years, I can see how this might > be... > > Here are its problems: > > Paper feed roller doesn't like to work well all the time. > > I'm certain that this problem comes from the printer setting > too long, and making an indentation in the rubber on the > roller. Has anyone had success in repairing this kind of > thing? See < http://www.channelu.com/NeXT/Black/Laser/index.html >. For that matter, look at the whole site, it is full of NeXT information. Also look around at < http://www.peak.org/~luomat/ > which is another repository of NeXT information. carl -- carl lowenstein marine physical lab u.c. san diego clowenstein(a)ucsd.edu

23 years, 8 months

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AIM-65 displays

by dwightk.elvey＠amd.com

Hi Rich and All I found a list book as well in my pile but I'm glad someone else has it up on the net. I was concerned about copying it because of the weak binding. Looking at the other AIM-65 stuff I have, I found ROMs for BASIC, Forth and PASCAL. I have manuals for the BASIC and Forth is Forth so doesn't need a manual but I have no manual for the PASCAL. I can make dumps of these ROM's if there is interest. Dwight >From: "Cini, Richard" <RCini(a)congressfinancial.com> > >If you look on my Web site, I have scans of all of the AIM manuals as well >as the monitor listing, schematics and ROM dumps. > >http://highgate.comm.sfu.ca/~rcini/classiccmp/my_docs.htm > >Rich > >========================== >Richard A. Cini, Jr. >Congress Financial Corporation >1133 Avenue of the Americas >30th Floor >New York, NY 10036 >(212) 545-4402 >(212) 840-6259 (facsimile)

23 years, 8 months

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The Unit (was: One-upsmanship (was: Secret Mac))

by csmith＠amdocs.com

> -----Original Message----- > From: Sridhar the POWERful [mailto:vance@ikickass.org] > Zuse gets my vote. Words like Gigazuse (GZ) sound really cool. Can we make it sufficiently small that it might extend to TerraZuse? Chris Christopher Smith, Perl Developer Amdocs - Champaign, IL /usr/bin/perl -e ' print((~"\x95\xc4\xe3"^"Just Another Perl Hacker.")."\x08!\n"); '

23 years, 8 months

4
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The Unit (was: One-upsmanship (was: Secret Mac))

by LFessen106＠aol.com

In a message dated 4/18/02 11:05:33 AM Eastern Daylight Time, Hans.Franke(a)mch20.sbs.de writes: > > > > >> If a formula for determining classic computer cool factor gets > finalized, > > > >> I'd like to create a calculator script on the VCF website so that > people > > > >> can enter their parameters and have their score automatically > computed. > > > >> We need a unit or label for this number. > > > >The neuron. > > > Feh! Too common, everyone has a few many don't use them. > > > > First it should be dimensionless, those are weird enough. If not then > > > like DB (DeciBell) which will give it a log or exponential character > though > > > I'd be interested in seeing other oddly shaped numbers. > > > > A possible name? Calcula with a range of values from microcalcula > > > (watch calc or smaller) to Kilo or maybe megacalcula(Sage! or other > beast). > > > Nahh, how about the bogacool? -Linc. In The Beginning there was nothing, which exploded - Yeah right... Calculating in binary code is as easy as 01,10,11.

23 years, 8 months

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The Unit

by csmith＠amdocs.com

> -----Original Message----- > From: Fred Cisin (XenoSoft) [mailto:cisin@xenosoft.com] > leaving out one more parameter in the calculation. (rarity? > inability to > run MICROS~1 software? weight? unknown to the general population? Well, I generally include inability to run microshaft software when I'm trying to figure out how cool a system is. Those that you can get a winders emulator for generally rank above those that run it natively, and those that you can't get an emulator for above that, A.S.O. -- I'm not sure how you'd turn that into a number to be used in a calculation, though. Perhaps that would be going the wrong way -- it would be simple just to find the minimal amount of internal storage required for a "supported" system, in comparison to the space required by the full system, and to subtract from the score based on that number. That would certainly harm more "modern" systems which run microsoft software ;) This "internal storage density" would probably be something like: (<Fixed-Media> + <RAM> + <ROM>)/Meters^3 (where the storage should be represented in some suitably large or small unit) Christopher Smith, Perl Developer Amdocs - Champaign, IL /usr/bin/perl -e ' print((~"\x95\xc4\xe3"^"Just Another Perl Hacker.")."\x08!\n"); '

23 years, 8 months

3
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AIM-65 displays

by dwightk.elvey＠amd.com

>From: "Hans B Pufal" <hansp(a)aconit.org> > >Richard Erlacher wrote: >> It turns out that Rich Cini has the ROM listings in PDF format on his website >> http://highgate.comm.sfu.ca/~rcini/classiccmp/my_docs.htm along with the >> manuals, etc. That'll save some effort, since he's already done the work. > >I saw this a few days ago in browsing but forgot about it til today. You >beat me by about an hour! > >Anyone want to volounteer to get the monitor source into ascii? If we >all chip in we would only have to do a page or four each. Needs >coordination though - I'd be willing to do that. > > -- hbp > > Hi I have dibbs on page 56 ( I'm a little lazy ). Dwight

23 years, 8 months

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1
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One-upsmanship

by csmith＠amdocs.com

> -----Original Message----- > From: Jay West [mailto:jwest@classiccmp.org] > I think that certainly one of the criteria should be the HVAC > required... > "My computer requires more tons of AC cooling than yours" What about immersion cooling? Chris Christopher Smith, Perl Developer Amdocs - Champaign, IL /usr/bin/perl -e ' print((~"\x95\xc4\xe3"^"Just Another Perl Hacker.")."\x08!\n"); '

23 years, 8 months

2
1
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Need Shugart 860-1 info

by Innfogra＠aol.com

Does anyone know if the HH 8" floppy Shugart 860-1 is a single or double sided drive? Paxton Astoria, OR

23 years, 8 months

3
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AIM-65 displays

by RCini＠congressfinancial.com

If you look on my Web site, I have scans of all of the AIM manuals as well as the monitor listing, schematics and ROM dumps. http://highgate.comm.sfu.ca/~rcini/classiccmp/my_docs.htm Rich ========================== Richard A. Cini, Jr. Congress Financial Corporation 1133 Avenue of the Americas 30th Floor New York, NY 10036 (212) 545-4402 (212) 840-6259 (facsimile) -----Original Message----- From: Richard Erlacher [mailto:edick@idcomm.com] Sent: Thursday, April 18, 2002 10:17 AM To: classiccmp(a)classiccmp.org Subject: Re: AIM-65 displays I'd be happy to scan the content and make it available as a G4 TIF file. Now, I probably have that stuff somewhere as well, but ... Joe Rigdon once said he had an AIM complete with the BASIC and ASM roms. I'd assume that the assembler uses the syntax in which the ROMs are written, which would help. ISTR he wanted to make the ROMs available, but didn't have an EPROM programmer at the time, and didn't know how to dump the ROMs without one. Let me know off-list how we can handle the listings. Dick ----- Original Message ----- From: "Jim Kearney" <jim(a)jkearney.com> To: <classiccmp(a)classiccmp.org> Sent: Thursday, April 18, 2002 8:01 AM Subject: Re: AIM-65 displays > I have the listings. It's a small book called "AIM 65 Monitor Program > Listing", and includes all the I/O routines, the editor and > assembler/disassembler. If you don't have it, I could lend it to you. > > Jim > > > >> I'll have a look to see whether I have any ROM listings. I > > >> thought I did, > > > >

23 years, 8 months

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Zenith Dual 8" drive

by Innfogra＠aol.com

I have a Zenith 8" dual disk drive unit that I need to sell so. It has two Shugart 860-1s in it. Anyone interested before it gets to eBay. Please contact me at whoagiii(a)aol.com if interested Paxton Astoria, OR

23 years, 8 months

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The Unit (was: One-upsmanship (was: Secret Mac))

by csmith＠amdocs.com

-----Original Message----- From: LFessen106(a)aol.com [mailto:LFessen106@aol.com] > Nahh, how about the bogacool? Actually, how about we call it a "metric ton," which could be written in Britain as "metric tonne..." *duck* Chris Christopher Smith, Perl Developer Amdocs - Champaign, IL /usr/bin/perl -e ' print((~"\x95\xc4\xe3"^"Just Another Perl Hacker.")."\x08!\n"); '

23 years, 8 months

1
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VAX-11/785 available, act immediately

by uban＠ubanproductions.com

At 09:55 AM 4/18/02 -0400, you wrote: > >Johnny Billquist <bqt(a)update.uu.se> writes: > >> > I had no profit motive and am in no way associated with the originator >> > of the message I forwarded. (*He* undoubtedly expects to make a modest >> > profit as finder of the equipment.) >> >> Okay. So this was a probing for business. Then it also was spam. Here is my 2 cents. The original post seems pretty innocuous to me and if you read it closely, you would have figured out that the poster and the person who had the machine were two different people. The poster (in my opinion) was just trying to share a find with someone who might be interested in saving a classic from the scrap mill. I have dealt with the person/company who was making the offer to save the machine for a profit, and yes that is what companies do. This guy is paid to make money for his company. I had an email conversation with him and it would appear that they bought some of the parts from the machine for resale to their customers and this guy put some enough extra thought into it to think that there is this group of crazy collectors our there that might be interested in the machine. Yes he is probably thinking from a profit point of view, but at least he is thinking of us. There are so many of these guys that don't think of us and end up destroying old machines which would make great projects for someone on this group, that it make me ill. Further, in my mind, the endless number of worthless flaming messages which were spawned by a list members attempt at providing a pointer to an available machine is *far* worse than an infrequent piece of spam, which we ought to just ignore. Can't we all just enjoy our hobby instead of ragging on each other? --tom

23 years, 8 months

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Download CD images for RSX-11 and RT-11 Freeware CDs from Tim Shoppa

by mcguire＠neurotica.com

On April 17, Jerome H. Fine wrote: > So I have a question! If my MD5 values are identical to the corresponding > MD5 values in MD5SUMS, can I assume that I have received three > identical images? Yup. -Dave -- Dave McGuire "Mmmm. Big." St. Petersburg, FL -Den

23 years, 8 months

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VCF Apple-1 Auction 4/19-4/21

by jimw＠agora.rdrop.com

It was written... >On Wed, 17 Apr 2002, Sellam Ismail wrote: >> On Wed, 17 Apr 2002, Tothwolf wrote: >> >> > I thought the Apple I was sold as a kit? It would be possible to >> >desolder >> > a whole board without damage to scan it, but it takes lots of time, >> > patience, and skill. >> >> I believe all of the units after the first batch of 50 delivered to >> The Byte Shop were wave soldered. I could be wrong. I have to go >> back and refresh my Apple-1 history. > > >I wasn't aware of that. Let me know what you find out. I had always heard >that nearly all of Apple I systems were sold as unassembled board kits. Well... as employee #4 of Byte Shop #4 (Portland, Oregon), and the one there who had to make various of that first batch actually do something interesting... <G> I can offer a few observations on this: As I recall, all of the Apple-1 units that came through our store were pre-assembled. I seem to recall someone asking about kits, but the 'party line' at the time was that Apple (I seem to recall the comment being attributed to Woz) considered it too difficult to assemble (without damaging it) for the 'average' customer. Keeping in mind that whoever actually bought one of the things had to figure out how to connect a (parallel) keyboard to it, plus the video and cabling for the cassette recorder. What you may have been thinking of was the occassions where Woz passed out schematics at the Homebrew Computer Club meetings for anyone who wanted to try to assemble on on their own. Just my $0.02 worth... -jim --- jimw(a)agora.rdrop.com The Computer Garage - http://www.rdrop.com/~jimw

23 years, 8 months

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I AM AN IDIOT! ARGHHHHH!

by gunther＠aurora.regenstrief.org

This is sooo frustrating. I shot myself in the foot and probably betrayed some of my friends here. I was going to snipe the 8 PDP boards from eBay that included the DEUNA set for 10 bucks or so. I set my agent to the wrong auction! Now a reseller got that stuff for $5.50. A RESELLER, FOR FIVE BUCKS! I could jump under a falling VAX for that! I am sooooooo sorry if you had been standing back because you saw the bid history. I will never do that again. But then when will there ever be a DEUNA for five bucks! A reseller. Argh. -Gunther

23 years, 8 months

3
3
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TTL computing

by bfranchuk＠jetnet.ab.ca

Playing aroud a bit with TTL using SSI parts, I get about 8-10 chips per bit on the average for the alu. For 16 bit computer that is about 160 chips. I would say 1/3 more for control or about 250 chips total. Does this sound right people with 16 bit TTL computers? -- Ben Franchuk - Dawn * 12/24 bit cpu * www.jetnet.ab.ca/users/bfranchuk/index.html

23 years, 8 months

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It's alive!

by mythtech＠mac.com

>We've managed to get the Apple-1 being auctioned working. We can enter >commands into the monitor and get expected responses. We're going to get >a cassette drive hooked up to it and attempt to load BASIC next. In that case... I'll raise my $25 bid to $30 + shipping, but not a penny more! (since I will cover shipping, that should outbid Toth's $35 offer earlier) Damn, I wish I could just get to play with an Apple 1 someday :-( (stewing in jealousy that Sellam is getting to resurrect this one) -chris <http://www.mythtech.net>

23 years, 8 months

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AIM-65 displays

by blacklord＠telstra.com

Hi Dick, > I'll have a look to see whether I have any ROM listings. I > thought I did, > but, well ... they say the mind's the second thing to go ... can't > rememberthe first ... > The AIM is pretty similar to the KIM-1 no ? (I may be mistaken) The KIM's ROM dissasembly is pretty freely available, I have a version that was suppied with a text file on how to build your own using current chips. Made a half hearted start at it, but currently it's gathering dust :-) cheers, Lance ---------------- Powered by telstra.com

23 years, 8 months

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One-upsmanship (was: Secret Mac

by mythtech＠mac.com

>computer cool factor >We need a unit or label for this number. Calculate your CCF at the VCF -chris <http://www.mythtech.net>

23 years, 8 months

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"Windows V1.0"

by Innfogra＠aol.com

In a message dated 4/17/02 1:30:35 PM Pacific Daylight Time, healyzh(a)aracnet.com writes: > > Consequently, looking back at the calendar, I think that > > it's far more likely that this is Windows 2.0 or 2.1. > > It's not much help, but the first Z248 that we received had MS-DOS 3.x and > Windows 1.0x floppies included with it. > > I've never seen a copy of Windows 2.x, however, oddly enough I recently > found a shrink-wrapped copy of Windows 1.0 in the trash! > One of the collectors I have been corresponding with has a copy of Heath Zenith Windows 2.1 and it is marked on the spine of the Box. Mine has no version at all. Mine also runs on MS-DOS 2.0. There is another addendum page that indicates how to configure windows with MS-DOS 3.1. There is no mention of MS-DOS 3.3 at all. I was hoping someone had a Heath Zenith catalog from that era, 1985-1986. Thanks for the help. Paxton Astoria, OR

23 years, 8 months

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VCF Apple-1 Auction 4/19-4/21

by dwightk.elvey＠amd.com

>X-Server-Uuid: e4c4d26a-1188-11d5-b029-00508be35655 >X-Authentication-Warning: ns2.ezwind.net: majordom set sender to owner-classiccmp(a)classiccmp.org using -f >Date: Wed, 17 Apr 2002 17:17:43 -0500 (CDT) >From: Tothwolf <tothwolf(a)concentric.net> >X-X-Sender: <tothwolf(a)strudel.invalid.domain> >To: "Classic Computer" <classiccmp(a)classiccmp.org> >Subject: Re: VCF Apple-1 Auction 4/19-4/21 >MIME-Version: 1.0 >X-WSS-ID: 10A3210192468-01-02 >Content-Transfer-Encoding: 7bit > >On Wed, 17 Apr 2002, Sellam Ismail wrote: >> On Wed, 17 Apr 2002, Tothwolf wrote: > >> If someone has an x-ray machine handy, perhaps we could do it that >> way. > >An x-ray won't work very well. The resolution isn't high enough, and the >image will look fuzzy. It also won't work at all for double sided boards, >which I think are what the Apple I uses. > >-Toth > > Hi That depends on the xray machine you are talking about. The ones we use in industry can see a single unsoldered pin on one of those C4 packages. I'm sure that is more than enough resolution for a PC board. Dwight

23 years, 8 months

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AIM-65 displays

by erd_6502＠yahoo.com

I am evaluating building a replacement display for the AIM-65 that does not use the DL1416. I have several modern options - a 20x1 LCD is cheap enough, as are more modern 4-char ASCII LED displays. The interface is somewhat trivial - the connector on the AIM-65 mainboard has enough signals to talk to a 6520 PIA (since that's what is on the normal display board to begin with). There are couple of angles to pursue... I have successfully tested a Motorola 6821 in place of the Rockwell 6520 in a real AIM-65. Since I have a few 6520s and many 6821s, that's a win. Either way, it's trivial to hang a display off of the 6502 bus without a PIA in the way. I'm curious if anyone knows why they bothered to put a 6520 on the display card? Did they want to keep the bus loading to a small, known quantity? If so, then I'll consider that any ASCII LED solution I come up with needs to have appropriate signal conditioning. I can't see how a modern LCD display would load the bus any worse than a 6520, so it might be worth the direct approach. So... the hardware is no big deal. The software, though, could be lots more work. I have real ROMs and ROM images. Are there any sources to the AIM-65 ROMs that are in a state to be compiled back into working, matching binaries? If I'm going to change the nature of the display, the code will have to follow. If the code is changing, then there's no reason I can't experiment with a multi-line display - I have a 20x4 VCD and a 20X4 LCD display already in hand. I think I can locate a 40x2 in my junk box, but at first, I'll probably ignore the right half and if I used it, treat it like a 20x2. Is there anyone out there who has done any real AIM-65 hacking? I can start from zero if I have to, but if there's any preexisting work out there, I'd like to see about starting ahead of zero. -ethan __________________________________________________ Do You Yahoo!? Yahoo! Tax Center - online filing with TurboTax http://taxes.yahoo.com/

23 years, 8 months

2
1
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Heath Zenith in a Faraday cage, was Secret Mac

by Innfogra＠aol.com

In a message dated 4/17/02 9:13:12 AM Pacific Daylight Time, foo(a)siconic.com writes: > These things are extremely rare in general, at least out in the wild. > This is only the third to surface, and of all three now documented on the > web (or at least known to be) they are all completely different. > At one time I had a Heath Zenith Z150 PC mounted inside a Metal Faraday cage. Has anyone seen anything like this? I assumed it was for Tempest type protection but then it did come out of the Hanford Nuclear Reservation. (no it didn't glow). Paxton Astoria, OR

23 years, 8 months

3
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One-upsmanship (was: Secret Mac

by Lee.Davison＠merlincommunications.com

> In the spirit of this "pecker contest" (as a former > boss of mine would call it), let me suggest the > "ultimate" metric for bragging rights... > cubic-foot-BTU/Hr-lb-amps per KByte-MIPS. Should that read cubicfoot * BTU/Hr * pounds * (amps/KByte) * MIPS ? Should be WATTs rather than AMPs, since the power consumption is the key issue, not the current. In the interest of international relations, should we switch to KG instead of pounds? And cubic meters instead of feet? How about KbyteMIPS / Wm^3 smallest number wins? Steam driven difference engine anyone? Lee. ---------------------------------------------------------------------------- ---- This email is intended only for the above named addressee(s). The information contained in this email may contain information which is confidential. The views expressed in this email are personal to the sender and do not in any way reflect the views of the company. If you have received this email and you are not a named addressee please delete it from your system and contact Merlin Communications International IT Department on +44 20 7344 5888. ________________________________________________________________________ This e-mail has been scanned for all viruses by Star Internet. The service is powered by MessageLabs. For more information on a proactive anti-virus service working around the clock, around the globe, visit: http://www.star.net.uk ________________________________________________________________________

23 years, 8 months

1
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More 11/750 PSU Qs

by Lee.Davison＠merlincommunications.com

Andreas, >> running only one in "voltage source" mode, the >> other(s) in "current source" mode effectively. > This is how any group of paralell power supplies works. And this requires the over-current protection to not shut down the individual supply, but instead have it contribute as much as can safely be done. On the other hand... No. All the supplies are set up as constant voltage. They are paralelled through either load share resistors or blocking diodes. Each can be overcurrent lockout protected as the forward drop of each diode or resistor ensures load sharing. No single supply will be at it's current limit. This is not a theory, this is how regulated paralelled power supplies work. This will be inhibited by the above-mentioned load-sharing feature, so you need some kind of "communication" between the supplies in order to be able either to share load or to completely shut down all others instead of running them in current-limiting mode after some have failed. None of the supplies are ever run in current limit mode, they are all, always, running as voltage sources. In th eevent of faliure once the remaining supplies can no longer cope with the load they all shut down in short measure. No communication is needed. > Use enough supplies so that one faliure is > tollerable. The only thing that needs preparation for this may be mechanics: you wouldn't want to try unscrewing thick power wires and risking them to touch any other metal parts inside a running system... You use off the shelf supplies and they each plug (via the load share network) into the output busbar. No bolts, no screws, just (un)plug and go. So, I think the bottom line is: running PSUs in parallel is something that really can be done, but there are several bells and whistles you need to take into account. It's really quite easy, AT type 'dumb' switchers just need a blocking diode, make sure though that you turn them all on together. .. We get to a point where a microcontroller makes sense to control this, and I have seen this in real systems. As have I. There is nothing more anoying than the faliure of a system because someone decided a microprocessor was needed where Kirchoff's laws would have been sufficient. Lee. ---------------------------------------------------------------------------- ---- This email is intended only for the above named addressee(s). The information contained in this email may contain information which is confidential. The views expressed in this email are personal to the sender and do not in any way reflect the views of the company. If you have received this email and you are not a named addressee please delete it from your system and contact Merlin Communications International IT Department on +44 20 7344 5888. ________________________________________________________________________ This e-mail has been scanned for all viruses by Star Internet. The service is powered by MessageLabs. For more information on a proactive anti-virus service working around the clock, around the globe, visit: http://www.star.net.uk ________________________________________________________________________

23 years, 8 months

1
0
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"Windows V1.0"

by dquebbeman＠acm.org

> I hesitate to mention this even if it is well over 10 years old. > > I have a copy of Heath Zenith Windows that I posted on eBay. > > http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=2017754574 > > I have been corresponding with collectors as how to verify this is actually > MS Windows 1.0. There are no version numbers at all on the disks, box, manual > and envelopes. > > The Heath Zenith Model Number of the Software package is MS-5063-30. Can > anyone verify what this model number represents? Zenith changed their software packaging a few times over the years. This is the same packaging as what I have on OS/2 1.0, and MS-DOS 3.3+. Consequently, looking back at the calendar, I think that it's far more likely that this is Windows 2.0 or 2.1. Sorry... -dq

23 years, 8 months

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Windows V1.0

by Innfogra＠aol.com

I hesitate to mention this even if it is well over 10 years old. I have a copy of Heath Zenith Windows that I posted on eBay. http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=2017754574 I have been corresponding with collectors as how to verify this is actually MS Windows 1.0. There are no version numbers at all on the disks, box, manual and envelopes. The Heath Zenith Model Number of the Software package is MS-5063-30. Can anyone verify what this model number represents? Since it comes on 5 5 1/4" 48tpi floppy disks and can be installed in a HZ 8088 PC I feel certain it is original. The manual indicates it can be installed on a two floppy machine besides on a hard drive. Any information would be helpful. Please, no flames... Paxton Astoria, OR

23 years, 8 months

5
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One-upsmanship (was: Secret Mac)

by dquebbeman＠acm.org

> From: Douglas H. Quebbeman <dquebbeman(a)acm.org> > > > >My computer dims the neighborhood's lights when I turn it on... > > > >My computer has fewer transistors than yours... > > > >My computer has no transistors, just tubes... > > > >My computer's valves burn out faster than yours... > > > >My computer's got more gears than yours... > > > Then there is... > > My computers daddy is bigger than yours. Hmmm... Gordon Bell is *not* a small man, but "big daddy"? ;) -Douglas Hurst Quebbeman (DougQ at ixnayamspayIgLou.com) [Call me "Doug"] Surgically excise the pig-latin from my e-mail address in order to reply "The large print giveth, and the small print taketh away." -Tom Waits

23 years, 8 months

2
1
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One-upsmanship (was: Secret Mac

by ajp166＠bellatlantic.net

From: Ethan Dicks <erd_6502(a)yahoo.com> > cubic-foot-BTU/Hr-lb-amps per KByte-MIPS. There is a redundant term. >Any other estimates? Should we consider BTU/Hr _or_ Amps (since more >power means more heat) or leave both values in the metric? Naw, thats not right either. It should be Amps*line_volts (or Vars). Then again the vertical stacking distance is another metric. After all Who knows how high that sh!t can pile! Allison

23 years, 8 months

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One-upsmanship (was: Secret Mac

by mbg＠TheWorld.com

> > > > My computer's heavier than yours. > > > new sig: My computer's got more blinking lights than yours. > > My computer's slower than yours. > My computer is uglier than yours... My computer draws more power than yours... Megan Gentry Former RT-11 Developer +--------------------------------+-------------------------------------+ | Megan Gentry, EMT/B, PP-ASEL | Internet (work): gentry!zk3.dec.com | | Unix Support Engineering Group | (home): mbg!world.std.com | | Compaq Computer Corporation | addresses need '@' in place of '!' | | 110 Spitbrook Rd. ZK03-2/T43 | URL: http://world.std.com/~mbg/ | | Nashua, NH 03062 | "pdp-11 programmer - some assembler | | (603) 884 1055 | required." - mbg KB1FCA | +--------------------------------+-------------------------------------+

23 years, 8 months

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Heath Zenith in a Faraday cage, was Secret Mac

by dwightk.elvey＠amd.com

>From: Innfogra(a)aol.com > >In a message dated 4/17/02 9:13:12 AM Pacific Daylight Time, foo(a)siconic.com >writes: > > >> These things are extremely rare in general, at least out in the wild. >> This is only the third to surface, and of all three now documented on the >> web (or at least known to be) they are all completely different. >> > >At one time I had a Heath Zenith Z150 PC mounted inside a Metal Faraday cage. >Has anyone seen anything like this? I assumed it was for Tempest type >protection but then it did come out of the Hanford Nuclear Reservation. (no >it didn't glow). > >Paxton >Astoria, OR > Hi When at Intel, we had to shield our Series II machine for a different reason. The early ones would reset when zapped by someone walking across the carpet and touching the key board. Energy can go in various directions. It could have been for security but was just as likely to keep from interfering with the various measurement equipment. Dwight

23 years, 8 months

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Seeking Interest in Group Purchase, Avery Magtape Labels

by cdl＠proxima.ucsd.edu

> From: "Douglas H. Quebbeman" <dquebbeman(a)acm.org> > To: "ClassicCmp List" <classiccmp(a)classiccmp.org> > Subject: Seeking Interest in Group Purchase, Avery Magtape Labels > Date: Wed, 17 Apr 2002 14:28:34 -0400 > > Hey- > > Avery still lists labels for 9-track tapes, assuming that's > what these are: > > Tape Reel High Speed Computer Labels > 3-7/8" x 1-13/16", White, Dot Matrix, > Removable, 5000 labels per box > 04052 5000 Labels per Box $139.15 > > If there are just ten people on the list who'd have use > for 500 labels, it's close to fifteen bucks per person. > > OTOH, is anyone sitting on a stash of them? I found a > sheet with precisely three labels, and I've quite a > few more tapes than that... Check to see if the adhesive still sticks to anything. My long-term experience with tape-reel labels is that the "permanent' adhesive lets go after 10 years or so, leaving me with a rack of unlabeled tapes and a bunch of labels on the floor. carl -- carl lowenstein marine physical lab u.c. san diego clowenstein(a)ucsd.edu

23 years, 8 months

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One-upsmanship (was: Secret Mac

by csmith＠amdocs.com

> -----Original Message----- > From: Roger Merchberger [mailto:zmerch@30below.com] > Rumor has it that Hans Franke may have mentioned these words: > >> > > My computer's heavier than yours. > >> > new sig: My computer's got more blinking lights than yours. > >> My computer's slower than yours. > >My computer produces more humming noise than yours. > My computer's *really* hardCORE! ;-) My computer has mercury-filled glass tubes. :) Chris Christopher Smith, Perl Developer Amdocs - Champaign, IL /usr/bin/perl -e ' print((~"\x95\xc4\xe3"^"Just Another Perl Hacker.")."\x08!\n"); '

23 years, 8 months

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AT&T 7300 Unix PC in Pittsburg, PA

by vcf＠siconic.com

Nathan would like to find a nice retirement home for his AT&T Unix PC. He's in Pittsburg, PA. Please contact him directly. Reply-to: Nathan.Thompson(a)respironics.com ---------- Forwarded message ---------- Date: Tue, 16 Apr 2002 14:01:44 -0400 From: "Thompson, Nathan" <Nathan.Thompson(a)respironics.com> Subject: inquiry I'm looking for a good home for my AT&T 7300 Unix PC. Kinda sorry to see it go, but the wife seems adamant. Let me know if this is an acceptable donation. -Nathan -- Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintage.org * Old computing resources for business and academia at www.VintageTech.com *

23 years, 8 months

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UPS was Re: Need Burroughs Tape Spec's

by mcguire＠neurotica.com

On April 16, David Woyciesjes wrote: > Meanwhile, I personally have never had a problem with UPS, and with > the volume of packages coming & going in this building, I've never seen > anything bad either. Maybe just a moron for a driver? I've had this happen in different states, so if it was a moron driver, it must've been multiple moron drivers. -Dave -- Dave McGuire "Mmmm. Big." St. Petersburg, FL -Den

23 years, 8 months

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missing chips on "new" UNIBUS boards ...

by ajp166＠bellatlantic.net

From: Ethan Dicks <erd_6502(a)yahoo.com> >> I noticed that the KFQSA was missing one socketed >> chip (approx 40 pin DIL, black right in the middle.) > >A microcontroller? A T-11? It's too new for my stuff; never even >seen one. Unfortunately, the picture in the Visual Field Guide at >http://vaxarchive.org/hw/vfg/m7769b1.jpg is none too legible. Sheesh T-11 chip is early 80s. Another part number for the T-11 is D320 (it's a memory test and I'm not home). Allison

23 years, 8 months

1
0
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One-upsmanship (was: Secret Mac

by ajp166＠bellatlantic.net

From: Dwight K. Elvey <dwightk.elvey(a)amd.com> > >Mine's a 4004. What do you use that is slower ( just because >it runs windows doesn't mean the processor is slower). >Dwight in the slowness derby... NEC upD7806, clocked at 32.768khz. It may be slow but it runs Basic and only uses 30uA. Second place is my PDT11/130... file access measured in 10s of seconds due to TU-58. The ugly award still goes to any PC running M$pooge winders. Allison

23 years, 8 months

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Explain the NeXTStation "dim monitor" problem, etc...

by cdl＠proxima.ucsd.edu

> From: Christopher Smith <csmith(a)amdocs.com> > To: "Classiccmp (E-mail)" <classiccmp(a)classiccmp.org> > Subject: Explain the NeXTStation "dim monitor" problem, etc... > Date: Tue, 16 Apr 2002 10:59:52 -0500 > Sender: owner-classiccmp(a)classiccmp.org > Reply-To: classiccmp(a)classiccmp.org > > Ok, I've got my NeXTStation working, but I'm in need of some > advice. > > First off -- can somebody explain the common problem with the > monitors going dim? Can I fix it? (How?) Is there an internal > "intensity" pot that I can adjust to get more life out of the > monitor? It is just bright enough not to strain your eyes at > the highest brightness setting right now... (It's B&W) NeXT bought the monitors from Sony. Sony bought CRTs that had a limited cathode life. The cathodes have mostly expired by now. > Next, can anyone tell me why, after booting into single user mode, > and changing the root password with 'nu -m' I might still be > refused a login next time I boot? > > I was able to get in once yesterday, after which I tried this morning > and was refused. I booted to single user mode again -- looked at the > current password hash, changed the password again (the hash turned out > different, but I'm not sure that means much really, and could just be > different "salt"), booted again normally, and still couldn't get in. The password file "/etc/passwd" is not used any time that NetInfo is running, which is nearly all the time. A few minutes ago I posted a method to modify the NetInfo view of the root password, using nidump and niload. > > A) It's getting another password from somewhere and overwriting the > one I put in? (I hope not.. :) Yes. The password file that is actually used is stored inside the NetInfo database. > > B) Something's not starting right during boot right now, and it needs > this to log people into the system? (More likely, I think...) > > It does still want to connect to the network, and complains about not > being able to talk to several machines when it boots. I'm not sure > whether this would make a difference, or how I would convince it not to > do this. :) Any suggestions? More NetInfo stuff. You need to reset the database so that the computer does not know about its previous life. Look on the net for the NeXT FAQ. It will help a lot. First place I found using a Google search is < http://www.non.com/news.answers/NeXT-FAQ.html > carl -- carl lowenstein marine physical lab u.c. san diego clowenstein(a)ucsd.edu

23 years, 8 months

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Seeking Interest in Group Purchase, Avery Magtape Labels

by dquebbeman＠acm.org

Hey- Avery still lists labels for 9-track tapes, assuming that's what these are: Tape Reel High Speed Computer Labels 3-7/8" x 1-13/16", White, Dot Matrix, Removable, 5000 labels per box 04052 5000 Labels per Box $139.15 If there are just ten people on the list who'd have use for 500 labels, it's close to fifteen bucks per person. OTOH, is anyone sitting on a stash of them? I found a sheet with precisely three labels, and I've quite a few more tapes than that... -dq

23 years, 8 months

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The Collector's Best Friend

by dquebbeman＠acm.org

> And thusly Douglas H. Quebbeman spake: > > > > > Nathan would like to find a nice retirement home for his AT&T Unix PC. > > > He's in Pittsburg, PA. Please contact him directly. > > > > > > : I'm looking for a good home for my AT&T 7300 Unix PC. Kinda sorry to see it > > > : go, but the wife seems adamant. Let me know if this is an acceptable donation. > > > > Behold the SWMBO: the ClassicCmp subscriber's Best Friend. > > > > ;) > > What's a SWMBO? Oh, 30 to 40 years of indentured servitude, if you're lucky... (SWMBO == She Who Must Be Obeyed... Wife for most of you, mother for a few) <tee hee>

23 years, 8 months

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Explain the NeXTStation "dim monitor" problem, etc...

by cdl＠proxima.ucsd.edu

> From: Dave McGuire <mcguire(a)neurotica.com> > Content-Transfer-Encoding: 7bit > Date: Tue, 16 Apr 2002 12:20:03 -0400 > To: classiccmp(a)classiccmp.org > Subject: Re: Explain the NeXTStation "dim monitor" problem, etc... > Sender: owner-classiccmp(a)classiccmp.org > > On April 16, Christopher Smith wrote: > > Next, can anyone tell me why, after booting into single user mode, > > and changing the root password with 'nu -m' I might still be > > refused a login next time I boot? > ... > > A) It's getting another password from somewhere and overwriting the > > one I put in? (I hope not.. :) > > It's been many years since I ran NeXTSTEP, so this might be > useless...but does "nu" modify the netinfo database? If not, well, > that might be the problem. The root password must be modified in such a way that Netinfo knows about it. One recipe for this is in the NeXT SysAdmin manual under the subject "Lost Root Password". The documentation is also online in /NextLibrary/Documentation/NextAdmin/15_Trouble.rtfd. The easiest way I know of to change the root password on NeXTstep is to boot as single-user. then: # cd /tmp # nidump passwd . > tempfile # vi tempfile # here delete the password field from the # between the pair of : first line (root) entry # niload passwd . < tempfile # halt Boot again, not as single-user. Root now has a null password. If you are an awk expert, you could combine the steps and not have the intermediate file. But it took me a few tries to get it right just now. So it's easier to use an editor. carl -- If you are an awk specialist, you could

23 years, 8 months

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AT&T 7300 Unix PC in Pittsburg, PA

by dquebbeman＠acm.org

> Nathan would like to find a nice retirement home for his AT&T Unix PC. > He's in Pittsburg, PA. Please contact him directly. > > Reply-to: Nathan.Thompson(a)respironics.com > ---------- Forwarded message ---------- > Date: Tue, 16 Apr 2002 14:01:44 -0400 > From: "Thompson, Nathan" <Nathan.Thompson(a)respironics.com> > Subject: inquiry > > I'm looking for a good home for my AT&T 7300 Unix PC. Kinda sorry to see it > go, but the wife seems adamant. Let me know if this is an acceptable donation. Behold the SWMBO: the ClassicCmp subscriber's Best Friend. ;)

23 years, 8 months

4
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One-upsmanship (was: Secret Mac

by dquebbeman＠acm.org

> > > My computer's heavier than yours. > > new sig: My computer's got more blinking lights than yours. > My computer's slower than yours. My computer dims the neighborhood's lights when I turn it on... My computer has fewer transistors than yours... My computer has no transistors, just tubes... My computer's valves burn out faster than yours... My computer's got more gears than yours...

23 years, 8 months

1
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TTL computing

by IVIE＠cc.usu.edu

Dwight Elvey said: > Looking at ideas for a minimal computer, did you see: > > http://www.tu-harburg.de/~setb0209/cpu/ http://eagle.eku.edu/faculty/styer/oisc.html has a description of a bunch of single-instruction machines. Take a look at the ones which require only byte moves and a memory-mapped program counter. Roger Ivie ivie(a)cc.usu.edu

23 years, 8 months

1
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One-upsmanship (was: Secret Mac

by dwightk.elvey＠amd.com

>From: "Fred Cisin (XenoSoft)" <cisin(a)xenosoft.com> > >> > My computer's heavier than yours. >> new sig: My computer's got more blinking lights than yours. >My computer's slower than yours. > > Mine's a 4004. What do you use that is slower ( just because it runs windows doesn't mean the processor is slower). Dwight

23 years, 8 months

1
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More 11/750 PSU Qs

by dwightk.elvey＠amd.com

>X-Server-Uuid: 1b77f47c-118c-11d5-bbc5-0002a5132c3d >X-Authentication-Warning: ns2.ezwind.net: majordom set sender to owner-classiccmp(a)classiccmp.org using -f >Date: Wed, 17 Apr 2002 09:45:56 -0700 >From: cdl(a)proxima.ucsd.edu >To: classiccmp(a)classiccmp.org >Subject: Re: More 11/750 PSU Qs >MIME-Version: 1.0 >X-WSS-ID: 10A36FAD144315-01-02 >Content-Transfer-Encoding: 7bit > >> From: ard(a)p850ug1.demon.co.uk (Tony Duell) >> Subject: Re: More 11/750 PSU Qs >> To: classiccmp(a)classiccmp.org >> Date: Tue, 16 Apr 2002 03:01:23 +0100 (BST) >> In-Reply-To: <20020415200927.52402.qmail(a)web10301.mail.yahoo.com> from "Ethan Dicks" at Apr 15, 2 01:09:27 pm >> Sender: owner-classiccmp(a)classiccmp.org >> Reply-To: classiccmp(a)classiccmp.org >> >> > > > > NO!. SMPSUs do not like being run in parallel (unless designed to be >> > > > > used like that). One PSU will end up attempting to supply all the >> > > > > current and the other PSUs may not like having voltages applied to >> > > > > their outputs. >> > > > >> > > > And once the first one drops dead, the next >> > > > most "powerful" one repeats the process. >> > > > Proof by "induction" left as an exercise :-) >> > > > >> > > *giggle* OK, ok, thought it was best to ask.... *laughs manically* >> > >> > Presumably, if one could a) tolerate the voltage drops and b) find massive >> > diodes (many amps for the intended application in an 11/750), it could be >> > done safely. Please feel free to correct me if I'm wrong. >> >> Well, that would prevent one PSU from supplying a voltage to the outputs >> of another (something that can really confuse the regulation circuitry!), >> but it won't help with the current distribution problem. The PSU who's >> output after the diode drop is the highest voltage will end up sourcing >> all the current. Not what you really want. > >Aren't there some power supplies that can be run in constant-current >or "current-limited" mode? I think I used to do that with a PDP8-E, >when the power drain of the add-in boards exceeded the original 1/2 Amp >per slot. A booster supply to provide more current. > > carl >-- > carl lowenstein marine physical lab u.c. san diego > clowenstein(a)ucsd.edu > Hi Carl Sure, I've use supplies that are designed to be used in parallel that would share current rather than having each supply run in current limit mode. They were set up in such a way that the voltage feedback was controlled by a master supply. The slave supplies were set to track to the voltage on the current sense resistor of the master supply only they took their feedback form input of their own current sense resistor. Only the master supply had voltage feedback from the load. Most supplies that have a high side current sense resistor can be modified to run this way. When the masters current went up, it would create a higher voltage on the sense resistor. This would cause the slaves to increase their voltage on their sense resitor, evening out the shared current. Dwight

23 years, 8 months

1
0
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Champaign trip (aka DEC Galore)

by csmith＠amdocs.com

> -----Original Message----- > From: pat(a)cart-server.purdueriots.com > On Wed, 17 Apr 2002, Christopher Smith wrote: > > > > -----Original Message----- > > > From: Doc [mailto:doc@mdrconsult.com] > You also need to add your connecting hosts to your /etc/X11/Xaccess > (or is it /etc/X11/xdm/Xaccess ?) config file, eg: a single "*" on the > command line will allow any host to connect. Did that too, but I will recheck it. Chris Christopher Smith, Perl Developer Amdocs - Champaign, IL /usr/bin/perl -e ' print((~"\x95\xc4\xe3"^"Just Another Perl Hacker.")."\x08!\n"); '

23 years, 8 months

1
0
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One-upsmanship (was: Secret Mac

by DAW＠yalepress3.unipress.yale.edu

> From: Fred Cisin (XenoSoft) > > > > My computer's heavier than yours. > > new sig: My computer's got more blinking lights than yours. > My computer's slower than yours. > My computer is uglier than yours... Oop, hey, wait a minute... -- --- David A Woyciesjes --- C & IS Support Specialist --- Yale University Press --- mailto:david.woyciesjes@yale.edu --- (203) 432-0953 --- ICQ # - 905818 Mac OS X 10.1.2 - Darwin Kernel Version 5.2: Fri Dec 7 21:39:35 PST 2001 Running since 01/22/2002 without a crash

23 years, 8 months

1
0
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TTL computing

by dwightk.elvey＠amd.com

HI Tony Looking at ideas for a minimal computer, did you see: http://www.tu-harburg.de/~setb0209/cpu/ I've just subscribed again to the list so I'm not sure if this pointer has come up on this thread. Dwight PS Tony: I tried sending you a message directly but I'm not sure it made it, on another subject.

23 years, 8 months

1
0
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Assorted goodies & TK Question

by cdl＠proxima.ucsd.edu

> Date: Mon, 15 Apr 2002 22:51:16 -0500 (EST) > From: <pat(a)cart-server.purdueriots.com> > X-X-Sender: <pat(a)cart-server.ecn.purdue.edu> > To: <classiccmp(a)classiccmp.org> > Subject: Re: Assorted goodies & TK Question > In-Reply-To: <200204160322.g3G3Mx621685(a)shell1.aracnet.com> > Sender: owner-classiccmp(a)classiccmp.org > Reply-To: classiccmp(a)classiccmp.org > > On Mon, 15 Apr 2002, Zane H. Healy wrote: > > > > > Also, how do I get the disk out of an RRD40 without a computer attached? > > > > Um, unless you've got the 'clear sleave', I don't think you're going to get > > the disk out without demolishing the drive! As long as that's the drive I'm > > thinking of it uses a funky 'pincer' holder for the CD, with a clear > > 'sleave' around it to make up the 'caddy'. You stick the caddy in the drive > > and pull the 'sleave' back out. To remove the CD, you stick the 'sleave' in > > and pull out the whole caddy. (hopefully that makes sense) > > How easy is it to take apart without killing the drive? Or can I make a > 'clear sleve' very easily out of a couple of pieces of plastic? > The peculiar caddy comes from Philips, and was also used in some videodisk players. My local Gateway Electronics store has a lot of junk related to the Philips players, including a bunch of caddies. Or at least they had them last time I was there, perhaps a month ago. Maybe there is some similar store near where you are. carl -- carl lowenstein marine physical lab u.c. san diego clowenstein(a)ucsd.edu

23 years, 8 months

1
0
0 0

Champaign trip (aka DEC Galore)

by csmith＠amdocs.com

> -----Original Message----- > From: Doc [mailto:doc@mdrconsult.com] > Silly question, but did you restart gdm? > Every ime I've set up remote desktops on a GDM server, It > Just Worked. Yes, lots ;) Christopher Smith, Perl Developer Amdocs - Champaign, IL /usr/bin/perl -e ' print((~"\x95\xc4\xe3"^"Just Another Perl Hacker.")."\x08!\n"); '

23 years, 8 months

2
1
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More 11/750 PSU Qs

by cdl＠proxima.ucsd.edu

> From: ard(a)p850ug1.demon.co.uk (Tony Duell) > Subject: Re: More 11/750 PSU Qs > To: classiccmp(a)classiccmp.org > Date: Tue, 16 Apr 2002 03:01:23 +0100 (BST) > In-Reply-To: <20020415200927.52402.qmail(a)web10301.mail.yahoo.com> from "Ethan Dicks" at Apr 15, 2 01:09:27 pm > Sender: owner-classiccmp(a)classiccmp.org > Reply-To: classiccmp(a)classiccmp.org > > > > > > NO!. SMPSUs do not like being run in parallel (unless designed to be > > > > > used like that). One PSU will end up attempting to supply all the > > > > > current and the other PSUs may not like having voltages applied to > > > > > their outputs. > > > > > > > > And once the first one drops dead, the next > > > > most "powerful" one repeats the process. > > > > Proof by "induction" left as an exercise :-) > > > > > > > *giggle* OK, ok, thought it was best to ask.... *laughs manically* > > > > Presumably, if one could a) tolerate the voltage drops and b) find massive > > diodes (many amps for the intended application in an 11/750), it could be > > done safely. Please feel free to correct me if I'm wrong. > > Well, that would prevent one PSU from supplying a voltage to the outputs > of another (something that can really confuse the regulation circuitry!), > but it won't help with the current distribution problem. The PSU who's > output after the diode drop is the highest voltage will end up sourcing > all the current. Not what you really want. Aren't there some power supplies that can be run in constant-current or "current-limited" mode? I think I used to do that with a PDP8-E, when the power drain of the add-in boards exceeded the original 1/2 Amp per slot. A booster supply to provide more current. carl -- carl lowenstein marine physical lab u.c. san diego clowenstein(a)ucsd.edu

23 years, 8 months

1
0
0 0

Champaign trip (aka DEC Galore)

by csmith＠amdocs.com

> -----Original Message----- > From: Doc [mailto:doc@mdrconsult.com] > [xdmcp] > Enable=1 Did that -- no dice. I haven't gotten much further. I hear that you can put a Port=177 (is that the number?) in there to make sure it uses the right port, and I haven't done that yet. Chris Christopher Smith, Perl Developer Amdocs - Champaign, IL /usr/bin/perl -e ' print((~"\x95\xc4\xe3"^"Just Another Perl Hacker.")."\x08!\n"); '

23 years, 8 months

2
1
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It's alive!

by vcf＠siconic.com

We've managed to get the Apple-1 being auctioned working. We can enter commands into the monitor and get expected responses. We're going to get a cassette drive hooked up to it and attempt to load BASIC next. -- Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintage.org * Old computing resources for business and academia at www.VintageTech.com *

23 years, 8 months

1
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OT Letting it go (was Re: The CommodoreOne is near!)

by mcguire＠neurotica.com

On April 17, Christopher Smith wrote: > > That's because we want to be *right.* It took me a long time > > to learn that > > I'd rather be happy than right. > > I'd rather be corrected than right. ;) No matter how much it > bruises the ego, it generally saves lots of time and energy > later. And you can learn something in the process! -Dave -- Dave McGuire "Mmmm. Big." St. Petersburg, FL -Den

23 years, 8 months

1
0
0 0

NeXTStation: How to fix NetInfo

by csmith＠amdocs.com

Ok, R. -- chime in here any time ;) Now that I can see the NeXTStation's display better, I've booted it again, and changed the local password with 'passwd'. That got me in again. It seems that some netinfo stuff is dying on bootup. Lots of the NeXTAdmin apps will complain about not being able to contact the NetInfo server and die. The NetInfo server, as far as I can tell is nibindd, is that right? What is lookupd? It starts right after it, and seems to possibly have something to do with NetInfo too, but I can't tell what. Anyway, lookupd likes to exit without doing much, and nibindd seems to be dumping core, which I assume isn't good at all ;) ... so how does one go about straightening this mess out? Chris Christopher Smith, Perl Developer Amdocs - Champaign, IL /usr/bin/perl -e ' print((~"\x95\xc4\xe3"^"Just Another Perl Hacker.")."\x08!\n"); '

23 years, 8 months

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Emulex MD21

by dquebbeman＠acm.org

> Rats, I wanted to use an Emulex MD21 from a Sun external SXSI box to hook my > PDP11s Fuji M2246E ESDI drive (that connects to the QBUS via an Emulex QD21) > upto a PC to do an image dump. > > The MD21 works OK with a Sun drive (a Micropolis model 1558) & the PC can > verify each block on that, but with the Fuji M2246E hooked up, I get > "unexpected SCSI command failure" from the Adaptec AHA1540CF BIOS when trying > to verify the disk - > host adapter status : 00h - no host adaptor error > target status : 02h - check condition > sense key : 02h - not ready > +sense code : : 22h > +sense code qualifier : 00h > > mean anything to anyone? The Fuji 2246E is working happily in the PDP11/83 so > I don't believe the drive is faulty (yet!) > > I noticed the MS21 announce itself to the SCSI controller as an "Emulex > MD21/S2". I wonder if there is specific Sun firmware in it to talk to > only Sun approved ESDI drives?... Hmmm this sounds a little familiar, I've got a Micropolis drive at home that's got an Emulex rider board, it may be the same setup, although from a Prime, not a Sun... I'll try to go home at lunch and check... -dq

23 years, 8 months

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OT Letting it go (was Re: The CommodoreOne is near!)

by csmith＠amdocs.com

> -----Original Message----- > From: Glen Goodwin [mailto:acme_ent@bellsouth.net] > That's because we want to be *right.* It took me a long time > to learn that > I'd rather be happy than right. I'd rather be corrected than right. ;) No matter how much it bruises the ego, it generally saves lots of time and energy later. Chris Christopher Smith, Perl Developer Amdocs - Champaign, IL /usr/bin/perl -e ' print((~"\x95\xc4\xe3"^"Just Another Perl Hacker.")."\x08!\n"); '

23 years, 8 months

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OT Women & computers (was Re: The CommodoreOne is near!)

by csmith＠amdocs.com

> -----Original Message----- > From: Glen Goodwin [mailto:acme_ent@bellsouth.net] > Woman: Don't give me that crap! Women don't know anything about > computers! > This sort of thing happened almost every day. I don't blame > Deb at all for > leaving the industry. Of course, we're in Florida, so you > have to expect > some redneck attitudes, but from a *woman*?? Well, I guess the whole point of this is that women in general have every bit of ability that men in general have. I suppose that includes the "ability" to be stupid. Chris Christopher Smith, Perl Developer Amdocs - Champaign, IL /usr/bin/perl -e ' print((~"\x95\xc4\xe3"^"Just Another Perl Hacker.")."\x08!\n"); '

23 years, 8 months

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Explain the NeXTStation "dim monitor" problem, etc...

by csmith＠amdocs.com

> -----Original Message----- > From: ard(a)p850ug1.demon.co.uk [mailto:ard@p850ug1.demon.co.uk] > Look for a pot marked 'screen' or 'g2' or something like > that. It's often > on the flyback transformer in small monitors, could be elsewhere on > larger/high end ones. For the record, it's "white level" on my monitor. :) It's also very hard to get at without a pot tweaker (have to get some of those one day...) > Turning this up might help. The cure might not be permanent > (in fact it > might casuse the CRT to fail sooner), but it's worth a try. We'll see -- it's ok for now. > Do take care when working inside a monitor. There are some nasty high > voltages in there. Although IMHO the CRT electrode voltages are less > likely to kill you than mains (simply because the CRT > electrode supplies > can't source much current), a shock from one of them can be > nasty, and > might cause you to jerk back and cut yourself, or break the CRT, or... Indeed. I know, but thanks for the warning anyway. FWIW, the Megapixel monitors are completely shielded even once you open the plastic. There's a cutout in the shielding for each pot, and looking in with a flashlight, I can't see much of a way to contact anything except the pots. In other words, this is probably pretty safe on one of these. > If you've not been inside a monitor or TV before, then there's a > reasonable set of safety precautions in the sci.electronics.repair FAQ I might look at that anyway. Chris Christopher Smith, Perl Developer Amdocs - Champaign, IL /usr/bin/perl -e ' print((~"\x95\xc4\xe3"^"Just Another Perl Hacker.")."\x08!\n"); '

23 years, 8 months

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OT email response format (was Re: TTL computing)

by csmith＠amdocs.com

> -----Original Message----- > From: Doc [mailto:doc@mdrconsult.com] > On Tue, 16 Apr 2002, Christopher Smith wrote: > > they really hate for people to put any software on their system > > (typical windows-using mindset, but let's not get into that :), > Umm, I had the misfortune to run a Windows9x network for a couple of > years. 30+ machines and 50+ belligerently clueless > archeologist users. > If I could have stopped those idiots from installing *every* browser > plugin that came along and $3 cut-out software, I'd have had half the > repairs to do. > That _is_ a Windows-admin mindset, borne of much painful experience. I was wondering whether I would get this reply, and I have just one thing to say to it: You're absolutely right. I wouldn't trust people to *breathe* on a windows machine, personally, because windows can't handle it. It was the "windows using" part that I really dislike. The mindset is just a symptom. ;) Now if you'd like to talk about people who think that this is a natural way for a computer to behave, that's something else entirely. Ok, that was at least two things, I guess... Chris Christopher Smith, Perl Developer Amdocs - Champaign, IL /usr/bin/perl -e ' print((~"\x95\xc4\xe3"^"Just Another Perl Hacker.")."\x08!\n"); '

23 years, 8 months

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UPS was Re: Need Burroughs Tape Spec's

by Robert_Feldman＠jdedwards.com

Maybe just a matter of terms, but you want a foam that will compress some, but will not _permanently deform_. Some spray foams will compress, but will not rebound, leaving lots of room for parts to rattle around in. Bob -----Original Message----- From: Sridhar the POWERful [mailto:vance@ikickass.org] Sent: Wednesday, April 17, 2002 1:29 AM To: Chad Fernandez Cc: classiccmp(a)classiccmp.org Subject: Re: UPS was Re: Need Burroughs Tape Spec's <snip> Actually, you want noncompressible foam so that it doesn't get compressed, making empty space into which your equipment can fall. The main reason why newspaper is a bad packing material. You want something that will absorb shock *without* compressing. ^^^^^^^^^^^ Peace... Sridhar <snip>

23 years, 8 months

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UPS was Re: Need Burroughs Tape Spec's

by ajp166＠bellatlantic.net

UPS... Another data point. We build RTD and RTD based assemblies, One time two probes were shipped to a vendor and we get an RMA request... Seems the probes were BENT. Now to appreciate that you have to understand these were .25" od probes (in a 316L sheath) and that inside a 1"od inconel thermowell (1"od .25" id) and they were BENT. UPS denied any culpability, they also paid. Allison

23 years, 8 months

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Explain the NeXTStation "dim monitor" problem, etc...

by ajp166＠bellatlantic.net

From: jpero(a)sympatico.ca <jpero(a)sympatico.ca> >I wondered whom is right? > >cathode oxide or >heater coating? The heater looses emissivity. Also the oxide from ION bombardment and local heating from the electron beam gets burned. In some systems the HV PS tends to fade over time as well! I have a bunch of Acer tubes that did the latter when run at 800x600. Allison

23 years, 8 months

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OT Letting it go (was Re: The CommodoreOne is near!)

by dquebbeman＠acm.org

> > From: Christopher Smith <csmith(a)amdocs.com> > > > > From: John Chris Wren [mailto:jcwren@jcwren.com] > > > > > But then, one thing I have noticed about the list, besides being an > > > excellent wealth of information and intelligent people, is that some don't > > > know when to let something end. > > > > You can count me in that category. I wonder whether it's typical > > of the kind of person you'd find on this list? > > > > As a general observation, technical types tend to push things > > further than most people appreciate in several cases. > > That's because we want to be *right.* It took me a long time to learn that > I'd rather be happy than right. They're not the same thing???? ;)

23 years, 8 months

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OT Women & computers (was Re: The CommodoreOne is near!)

by acme_ent＠bellsouth.net

> From: John Chris Wren <jcwren(a)jcwren.com> > Jesus. And people wonder why women have a hard time in the industry. No kidding! My wife Debbie created our computer store/repair shop, but she ultimately quit because of the disrespect she received from customers. She has ten years experience with telecommunications gear, and Wintel boxes are not much of a challenge for her. Real conversation: Woman enters the store carrying a PC. Woman: "I need help with my computer. Can he help me?" (Points to me, busy swapping out a hard drive.) Debbie: Well, *he's* busy right now. How may I help you? Woman: I need help with my computer. When will he be available? Debbie: I don't know, but *I* can help you right now. Woman: You don't understand, my computer is broken and I need it fixed. Debbie: I can fix your PC if you will just explain the problem to me. Woman: Don't give me that crap! Women don't know anything about computers! This sort of thing happened almost every day. I don't blame Deb at all for leaving the industry. Of course, we're in Florida, so you have to expect some redneck attitudes, but from a *woman*?? Glen 0/0

23 years, 8 months

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Does Anyone Have A

by Robert_Feldman＠jdedwards.com

Jonathan Engdahl mentioned the TI chip in the Simon game, which reminds me I have some TI TMS34010 chips and one TMS34010 User's Guide that I don' need. The chips are on B+H scanner (?) 3-board stacks with graphic RAM and SCSI and printer ports, and are a bit heavy. I can pull the TMS chip if anyone wants just that. Free for postage. Reply to robert_feldman(at)jdedwards.com.

23 years, 8 months

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