test-drb October 2001

test-drb@ccmp.vtda.org

259 participants
770 discussions

Semi OT: Radio Shack Armatron & May '85 issue of Radio-Electronics

by mythtech＠Mac.com

> I just now copied them and they are available at: > > http://www.flummux.org/radio/ > > I can hold them indefinitely (I control the server (486, so it's within >the charter of this group 8-) and have plenty of disk space) but I would >prefer they go someplace more appropriate than my digpile domain 8-) Can you get pic 2,3 or 6 to open? I can't get them to work (your copy or the originals) on either my Mac, or my winME machine. If you can get them to open, can you either email them to me, or ftp them to ftp.mythtech.net (drop them in the incoming directory... I already have 1,4 and 5 there). I would also be happy to permanently host them (although I don't know how much more appropriate my domain is than yours... but either way). I can also convert them to a single PDF if people want. Thanks -chris <http://www.mythtech.net>

22 years, 7 months

VAX 4000 Power Cord (BA440)

by dittman＠dittman.net

I remember a couple of months ago there was discussion on the proper cable for a BA440 power supply (normal North American three prong power cord but with a notch where it plugs in to the power supply). Was there a consensus on the designation (and any place in the US that sell them)? -- Eric Dittman dittman(a)dittman.net

22 years, 7 months

Radio Shack Armatron NEW page

by mythtech＠Mac.com

Ok.. the May 85 Radio-Electronics pages have been moved. The (or should I say A, since others are welcome to mirror them) page to download them is: <http://www.mythtech.net/armatron/> There are 6 pages, you can DL them individually (approx 150k each JPEGs), or you can download the single PDF of the pages (approx 5mb). They can stay here until someone that owns the copyright to them yells at me to take them down... or until further notice (which means, by tomorrow, I will have forgotten they are on my site, and they will end up being there pretty much forever). If anyone wants the original TIFF files, let me know. There was no real difference between the TIFF and the JPEG, except that the JPEG is about 4 times smaller. I have no plans on posting the TIFFs, but I will be archiving them to CD if anyone decides they want them. Thanks go out to Mike for taking the time to scan these, and work with me to get a good copy of them. -chris <http://www.mythtech.net>

22 years, 7 months

Semi OT: Radio Shack Armatron & May '85 issue of Radio-Electronics

by mythtech＠Mac.com

>Hmmm, is it me or is everyone else having problems with arm2.tif and >arm3.tif? >I was able to open arm6.tif though.... > >Ram Yes, there was something wrong with the images 2,3 and 6... but thanks to Mike's infinite patience... I now have a complete set. The pages will be available on my web site in JPEG format (cuts them from about 1.2mb tiffs down to about 200k jpegs) and in a PDF "collection". They should be available by the time you read this (or within a few minutes after) at <http://www.mythtech.net/armatron/> -chris <http://www.mythtech.net>

22 years, 7 months

Semi OT: Radio Shack Armatron & May '85 issue of Radio-Electronics

by mythtech＠Mac.com

>I am planning on converting the Radio Shack Armatron to run off the >parallel port >of a PeeCee but need the plans to do it. I found the following site >that contains the conversion >needed for an Atari at: > >http://www.bitsofthepast.com/atari/arm.html > >The May '85 Radio-Electronics has the necessary instructions, sooo I was > >wondering if someone would be kind enought to either scan or mail me the > >article. I hate to sound like an AOL'er, but ME TOO! (that is, email me the directions too)... I have never thought of doing this, but it certainly would make my old armatron WAY more fun. (Humm... now I am going to have to pull it out and see if I can hook it up to my Lego Mindstorm... toss a remote control car body to the bottom, and I can terrorize my cat for hours!) -chris <http://www.mythtech.net>

22 years, 7 months

Bad bad DECstation

by optimus＠canit.se

Our DECstation 3100 has been in a sad state recently. Both the monitor (that old monochrome thing without a stand which was used with the VS2000 amongst others) and the keyboard (LK201) had given up the gist (the monitor would just make a flickery sound, without the CRT coming alive, the keyboard didn't blink and the console would blink "??" when it reached test 3). I plugged in a Nokia monitor, which worked, if you can live with the green picture, and another LK201. That worked for a while, but when I managed to boot it (NFS wasn't so cooperative this day), and reached X, the mouse just stopped moving after a while. I rebooted it, and suddenly this keyboard had died as well. What the hell is going on? Is it possible to save the LK201s? We're running short of DEC keyboards as it is, and we certainly don't need this. -- En ligne avec Thor 2.6a. If the designers of X-Windows built cars, there would be no fewer than five steering wheels hidden about the cockpit, none of which followed the same principles -- but you'd be able to shift gears with your car stereo. Useful feature, that. - Marus J. Ranum, Digital Equipment Corporation

22 years, 7 months

Central Florida Junk Fest report.

by steven_j_robertson＠hotmail.com

I was able to see them yesterday but, now they are gone. SteveRob >From: "Glen Goodwin" <acme_ent(a)bellsouth.net> >Reply-To: classiccmp(a)classiccmp.org >To: <classiccmp(a)classiccmp.org> >Subject: Re: Central Florida Junk Fest report. >Date: Tue, 2 Oct 2001 23:40:16 -0400 > >Hey Mike, I'm getting a 404 on all of these :>( > > > The pics didn't come out very well with alot of cc gear hiding in the >shade, > > but here they are: > > > > http://personal.lig.bellsouth.net/lig/d/o/dogas/Jf1.jpg > > http://personal.lig.bellsouth.net/lig/d/o/dogas/Jf2.jpg > > http://personal.lig.bellsouth.net/lig/d/o/dogas/Jf3.jpg > > > > > > > ;) > > > - Mike: dogas(a)bellsouth.net > _________________________________________________________________ Get your FREE download of MSN Explorer at http://explorer.msn.com/intl.asp

22 years, 7 months

8080 vs. 8080A

by ajp166＠bellatlantic.net

Track the clock through the logic... there is a divide by 2 in there. Also the 9080 250ns part was late in the game and hard to find. If you want an 8080 that was really fast use a 8085-5 (5mhz) or the later 80c85-6(6mhz). the latter was a nice part as it was CMOS. I still have a potload of 8080s and 8085s and my design favorite for small systems is the 8085 over the Z80. Allison -----Original Message----- From: Richard Erlacher <edick(a)idcomm.com> To: classiccmp(a)classiccmp.org <classiccmp(a)classiccmp.org> Date: Sunday, September 30, 2001 8:23 PM Subject: Re: 8080 vs. 8080A >Well, Allison, it appears you're right. The AMD 9080 was the one with the 250ns >clock (4 MHz) period, now that I've looked a couple of references. Thanks for >clearing that up. > >However, that doesn't explain what's going on in my iSBC8020-4's. I'll have to >figure that one out. > >Dick >----- Original Message ----- >From: "ajp166" <ajp166(a)bellatlantic.net> >To: <classiccmp(a)classiccmp.org> >Sent: Sunday, September 30, 2001 5:12 PM >Subject: Re: 8080 vs. 8080A > > >> no, it was 2mhz. >> >> using 8224 the usual crystal was 18.435 (2.0483333*9). >> there was a -1. -2 and -3 version of the part but the fastest was 3mhz. >> >> I used to sell upD8080AF for NEC and I had to know my competition. >> >> Allison >> >> -----Original Message----- >> From: Richard Erlacher <edick(a)idcomm.com> >> To: classiccmp(a)classiccmp.org <classiccmp(a)classiccmp.org> >> Date: Sunday, September 30, 2001 6:23 PM >> Subject: Re: 8080 vs. 8080A >> >> >> >BTW, the 8080 was a 2.5 MHz part, wasn't it? I've got a couple Intel >> app-notes >> >where they generate a baud-rate clock from 24.576 MHz and generate the >> CPU clock >> >from that, at 2.4576 MHz for the CPU. That's on an i8080-2. >> > >> >Dick >> > >> >----- Original Message ----- >> >From: "ajp166" <ajp166(a)bellatlantic.net> >> >To: <classiccmp(a)classiccmp.org> >> >Sent: Sunday, September 30, 2001 2:31 PM >> >Subject: Re: 8080 vs. 8080A >> > >> > >> >> Wrong! >> >> >> >> The I8080A is AS fast as the i8080. the i8080A-1 is faster but not >> twice >> >> as the fastest 8080[A] was only 3mhz and hte standard part was 2mhz. >> >> >> >> Allison >> >> >> >> -----Original Message----- >> >> From: John Galt <gmphillips(a)earthlink.net> >> >> To: classiccmp(a)classiccmp.org <classiccmp(a)classiccmp.org> >> >> Date: Sunday, September 30, 2001 3:57 PM >> >> Subject: Re: 8080 vs. 8080A >> >> >> >> >> >> >"The i8080A is essentially twice as fast as the >> >> > standard i8080 and COULD be used more easily with low-power logic >> since >> >> its >> >> >demands aren't as stringent". >> >> > >> >> >Ok, that's a good start. >> >> > >> >> >But, I don't think "low power" TTL (transistor transistor logic) had >> >> >anything to do with the complexity of the code being executed on the >> >> chip. >> >> >True? I had assumed >> >> >that the references to the 8080 only being compatible >> >> >with "low-power TTL" and the 8080A being compatible >> >> >with "standard TTL" had something to do with the support chips (Ram, >> >> clock, >> >> >etc) that could be used with the 8080 vs. the 8080A. >> >> > >> >> >Since I'm new to this mail list, let me explain why I would >> >> >show up here and ask such a question to begin with. >> >> > >> >> >I'm a chip collector. I am trying to document the differences >> between >> >> the >> >> >different early Intel microprocessors. Not worried about massive >> >> detail, >> >> >just the major differences (PMOS, vs. NMOS, vs. >> >> >HMOS, clock speed, transistor count, etc). >> >> > >> >> >The only microprocessor that I don't have a good handle >> >> >on is the 8080 and the difference between the 8080 and 8080A. >> >> > >> >> >I also know that the 8080 was introduced sometime >> >> >around April 1974. I have not been able to find an >> >> >introduction date for the 8080A. Was it introduced at >> >> >the same time? Does anyone know? >> >> > >> >> >I also need an Intel C8080 or C8080-8 for my >> >> >collection. If you have one, I want it. I have been looking >> >> >for one for months and have not been able to find one. >> >> >If you have either of these chips in good condition >> >> >(no desoldered parts wanted), I'm offering 400.00 >> >> >for the C8080-8 and 500.00 for a C8080. >> >> > >> >> >If you need a replacement for the C8080 or C8080-8 you sell me, I'll >> >> GIVE >> >> >you a D8080A free as part of the >> >> >deal. >> >> > >> >> >----- Original Message ----- >> >> >From: "Richard Erlacher" <edick(a)idcomm.com> >> >> >To: <classiccmp(a)classiccmp.org> >> >> >Sent: Sunday, September 30, 2001 1:21 PM >> >> >Subject: Re: 8080 vs. 8080A >> >> > >> >> > >> >> >> This makes no sense at all, though it may be because I'm >> >> misinterpreting >> >> >the way >> >> >> in which you've put it. >> >> >> >> >> >> I have Intel boards that come in versions with the i8080 and also, >> >> >> optionally,with the i8080A, and, aside from the clock frequency and >> >> memory >> >> >> access times, they're identical. The i8080A is essentially twice >> as >> >> fast >> >> >as the >> >> >> standard i8080 and COULD be used more easily with low-power logic >> >> since >> >> >its >> >> >> demands aren't as stringent. >> >> >> >> >> >> The i8080A will, AFAIK, replace the i8080 in all applications >> without >> >> ill >> >> >> effects. >> >> >> >> >> >> BTW, please turn off "rich-text" mode in your email editor when you >> >> >compose >> >> >> messages for this group, as some folks' mail readers can't >> interpret >> >> the >> >> >> rich-text/HTML format. >> >> >> >> >> >> Dick >> >> >> ++++++++++++++++++++++++++++++++++++++ >> >> >> ----- Original Message ----- >> >> >> From: John Galt >> >> >> To: classiccmp(a)classiccmp.org >> >> >> Sent: Sunday, September 30, 2001 10:17 AM >> >> >> Subject: 8080 vs. 8080A >> >> >> >> >> >> >> >> >> Can anyone here describe the technical differences between >> >> >> an Intel 8080 and Intel 8080A CPU? >> >> >> >> >> >> The ONLY ref. I have been able to find seems to indicate that there >> >> was a >> >> >bug in >> >> >> the 8080 and as a result it would only work with low power TTL? >> >> >> >> >> >> The problem was fixed in the 8080A and it would work with standard >> >> TTL? >> >> >> >> >> >> Does this make sense to anyone? >> >> >> >> >> >> Could anyone put this into laymans terms for me? >> >> >> >> >> >> Thanks, >> >> >> >> >> >> George Phillips - gmphillips(a)earthlink.net >> >> >> >> >> > >> >> >> >> >> > >> >> > >

22 years, 7 months

HP 9000/847S

by jarkko.teppo＠er-grp.com

Hello, I just picked up a 9K 847S, upgraded to H50 with two SCSI-buses, one mux panel, a few disks and 384MB of memory (hmmmmm...). I'm not sure on the ten year rule as I'm relatively clueless regarding this machine. This is my second PA-RISC machine and it seems refreshingly better than the 840. A few questions: a) Introduction date ? b) Where can I get HP-UX 10.x cheaply :)? (ie. for free) -- jht

22 years, 7 months

IBM ROM BASIC or lack thereof

by alan.pearson＠cramer.com

QBASIC's sitting on my machine here at work (NT4), so I guess it's part of the default NT installation. There's no reason for us to use QBASIC here, it's too useful - we're mostly doing PL/SQL or MFC ;-) -al

22 years, 7 months

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test-drb October 2001