test-drb

test-drb@ccmp.vtda.org

101090 discussions

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, 3 months

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, 3 months

"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, 3 months

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, 3 months

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, 3 months

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, 3 months

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, 3 months

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, 3 months

"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, 3 months

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, 3 months

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, 3 months

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, 3 months

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, 3 months

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, 3 months

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, 3 months

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, 3 months

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, 3 months

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, 3 months

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, 3 months

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, 3 months

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, 3 months

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, 3 months

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, 3 months

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, 3 months

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, 3 months

Jump to page:

2025

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

2011

2010

2009

2008

2007

2006

2005

2004

2003

2002

2001

2000

1999

1998

1997

test-drb