test-drb September 2005

test-drb@ccmp.vtda.org

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DEC logic lab leads

by jack.rubin＠ameritech.net

I've reposted the image in "manual" mode for the luddites among us ;>) ! http://www.sideslip.net/dec_lab_leads/ Jack

20 years

Someone looking for help on HP 150, err code 0004

by sieler＠allegro.com

Hi, Can anyone help this user with an HP 150 problem: > But, I can't get past the pre-boot error message, > "Power-on test failed 0004" He's at: mwelch at redwoodalliance.org Apropos of his question, does anyone know of a list of HP 150 error codes? thanks, Stan -- Stan Sieler sieler at allegro.com www.allegro.com/sieler/wanted/index.html

20 years

Homebrew Circuit Boards: Methods? Supplies?

by trag＠io.com

>Date: Tue, 13 Sep 2005 06:52:29 -0400 >From: Steven_R_Hutchins at Raytheon.com >Subject: Re: Homebrew Circuit Boards: Methods? Supplies? >DIY is fun, but try this site for pc boards. >$88. for quantity 2, double sided boards, 4 day turnaround >$122 for quantity 2, 4 layer boards, 4 day turnaround >Same price up to 85 sq. inches. High quality boards. >Just make sure you follow the rules for the "No touch" price, because they >send you exactly what your Gerbers contain. Steven, You left out the URL, but from the description, I'd say you were writing about Sierra Proto Express. I've used them before with good results--both 4-layer protos and a batch of 200 boards from their regular service. However, the catch with the proto services is that they're all limited to .062" thick board and for this particular application, I need .050" board. That simple change in board thickness changes much of how one would normally get some simple boards made. I've even emailed several proto services to ask if they could do .050 as a proto, but they won't, which is understandable. Jeff Walther

20 years

a long shot...Wanted - Canon AS-100

by chrism3667＠yahoo.com

I may have posted this previously. Also *always* looking for other weirdo PC-incompatibles. Don't ask me for a list (right now anyway). If you got something and not sure, contact me. Moocho grassyass :). This and other *wierdos* can be viewed at www.old-computers.com if ya didn't know it. __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

20 years

IBM PC hacking

by ajp166＠bellatlantic.net

I still have a AST 6pack pro in my collection of boards for PCs along with a Dimond trackstar128 (Apple][ in a PC). Never used either as they were collected long after their time. Allison > >Subject: IBM PC hacking > From: jim stephens <jwstephens at msm.umr.edu> > Date: Tue, 13 Sep 2005 17:06:49 -0700 > To: cctalk at classiccmp.org > >I saw an auction which reminded me of the days when the PC and XT >came out, but before clones or otherwise appeared, and before such >as AST were dominating the market. > >This auction is for a "zukerboard" 576K mem expansion. 6801436037. >I remember the hype for zucker that they were going to wreck the >market. > >The only reason this has any significance is that I believe this was one >of the >AST wannabe's, or even was larger than AST, pre the days when they >started making systems. > >I know of at least Zucker, Tecmar (marty tech, I don't remember marty's >last name, but he was some sort of PHD ohio type, I think). > >A number of companies were based here in Orange County, California, >and provided a lot of cheap stuff as they cratered, and the local >scrappers >got their. stuff and sold it off. > >Processor Technology (? I think) went big time and cratered. > >I remember a little shop here in Santa Ana which had the first clone of >the IBM PC. It was a single board which had 640k memory, allowed >using 64k memories, instead of the 16K memory that the PC and XT >earlier models used. > >It was called "Superboard" and was no relation to Supermicro, which >came much later. It had a bios that usually worked, but also had, >conveniently, a spot for up to 6 eprom chips, so you could put in a >PC bios if you could get a copy. > >The PC used either EProms, (16K I think) and the Roms that were >shipped with the BIOS were registered. The standard Data I/O would >not read them since they were not programmable, and needed their >output enabled to read the data. > >But once someone had them in the 2716's, it was easy to get them >running in your superboard. > >First systems had a 63 watt P/S, and IBM cards if you could find >them for video. Also there was no floppy controller on the first >board. > >Maybe others of you can recall expansion card makers, of such >things as serial, parallel, memory, floppy, then hard drive, etc. > >Jim

20 years

Various Macs for Sale

by vcf＠siconic.com

I have the following Macintosh computers for sale. These are mostly more recent models but there are some going back into the II series. All these systems are in anywere from good to poor condition, with the majority being in good condition. Most are complete, but I haven't looked inside, and I haven't powered up anything. Some are yellowed. Some are pristine. If you're interested in a particular model, ask and I can tell you the condition. In some cases there are multiple units of the same model, with the condition varying among them. Here's the deal: 1. $10 each plus shipping. 2. If you want me to inspect any system for any reason (other than reporting on general condition), add $10. 3. If you want me to test a system, add $25. "Testing" will consist of turning it on and seeing if it boots into an OS, or in the case of older systems with no internal hard drive, I'll turn it on and see if it goes "boop!" 4. Take the entire pallet (55 computers total) for $100 plus freight. The answer to all other questions follows this list of models available (number in parenthesis is quantity available): II Series IIci (2) IIsi IIvx (2) Quadra Series 610 (2) 605 (2) 650 (3) 950 Centris Series 610 (3) 650 (2) Performa Series 600 631CD (2) 636CD (2) 6115CD (3) 6116CD 6290CD 6370CD PowerMac Series 6100/66 (2) 6400/180 6500/250 7100/66 (3) 7100/66AV 7200/75 7500/100 (6) 8100/100 8500/120 (2) 9500/120 9500/132 (4) G3 (6) Misc Newer Technologies MAXpowr (240-266Mhz G3 Processor for NuBus) Newer Technologies Dt351c (2) The answers to all questions: 1. What ... ? I DON'T KNOW. Check http://www.lowendmac.com or justfuckinggoogleit.com. Feel free to cross-post this to the LEM Swap List. -- Sellam Ismail Vintage Computer Festival ------------------------------------------------------------------------------ International Man of Intrigue and Danger http://www.vintage.org [ Old computing resources for business || Buy/Sell/Trade Vintage Computers ] [ and academia at www.VintageTech.com || at http://marketplace.vintage.org ]

20 years

Using SimOS to simulate a SGI MIPS IRIX environment

by RMeenaks＠OLF.COM

Hi, I am currently porting the INMOS iserver program to work with some more modern processors and also revamping it to be a lot more modular. I really don't have the space for any new machines currently, hence the reason for the emulator. As long as I can compile and have access to TCP/IP, I am set.... Thanks, Ram > system] (how's that for a run-on?)). Indys are cheap and small if you > want a nice 6.2 machine, I even have a r5k in the garage if > you want it > for free and are anywhere near Washington state. >

20 years

Using SimOS to simulate a SGI MIPS IRIX environment

by compoobah＠valleyimplants.com

Looked at that a few years ago- at that time it required a customized IRIX environment to run, and Stanford was only allowed to distribute the diffs against IRIX 5.3, and not 6.2. It looks like they now have 6.4, but again can't distribute- it depends what you want to do (I can't remember what your project is) but 5.3 is definitely a more proprietary UNIX than 6.2+ is in terms of requiring IRIX specific tweaks and oddities.The upside, of course, is that your program will run on R3k (which can only run up to IRIX 5.3, generally, some IPs max out at 5.2, and the earlier machines really like 4.0.5 or less, which is even weirder to code for, especially 3.x [NeWS-based windowing system] (how's that for a run-on?)). Indys are cheap and small if you want a nice 6.2 machine, I even have a r5k in the garage if you want it for free and are anywhere near Washington state.

20 years, 1 month

RK07 cartridge, other "vintage" items, Wang "loopback" on Epay

by jwstephens＠msm.umr.edu

This vendor in new hampshire has an RK07 in this auction, 4131071126 , and some other "vintage" things that look to be of interest to collectors of the later model mini stuff. He has a huge pile that is of interest in general, if you can wade thru it all. Maybe he'll tell you about it on Skype. Jim

20 years, 1 month

SWTPC Digi-Vista Nixie Clock

by ajp166＠bellatlantic.net

Top posted for brevity. Most equipment I've worked with run 160-190V for Nixies. Further my Yaesu YC-355D freq counter that I purchased in 1973 is nixie based and also uses around 170V. FYI: base logic is venerable 7490, 7475 and 7441 for the decades. For a simple PS to run nixies (and valves) I use a 6.3V CT 600ma or 1A To 117V mains transformer. They are common here in the USA and cheap. I drive them with a pair of bipolar power transistors in TO220 cases from 12V. Base drive for those transistors is derived from a squarewave source of two phases 180 degrees (555 and 7474 work fine) at 400hz or so (not criticial, higher makes filtering easier and less mechanical hum). The ouput can be rectified and filterd as needed (bridge or doubler is what I do depending on voltages needed). The voltage will be around 210V with a small load (10ma). If I need more power a heavier transformer with 3A or 5A 6.5V winding is used. Also if a stable voltage is needed sample the output and use that as feed back to a series pass feeding primary side power. That will regulate very well. I've built that many times and run many a HV device and even a CRT (D170 size) that required 1200V. For that I used a small 1A 10VCT:230V control transformer and a voltage multiplier and feedback for regulation. Works well. I prefer the driven style rather than self excited voltage converter as it's easier starting and has stable operation. It also doesn't require a special (hard to find or make) multiwinding transformer. the rest of the parts are also generally easily found in defunct stereos or even ratshack. Exotica and unobtainium is a pain. Allison > >Subject: Re: SWTPC Digi-Vista Nixie Clock > From: "Dave Brown" <tractorb at ihug.co.nz> > Date: Wed, 14 Sep 2005 09:59:02 +1200 > To: "General Discussion: On-Topic and Off-Topic Posts" <cctalk at classiccmp.org> > > >----- Original Message ----- >From: "Tony Duell" <ard at p850ug1.demon.co.uk> >To: <cctalk at classiccmp.org> >Sent: Wednesday, September 14, 2005 7:35 AM >Subject: Re: SWTPC Digi-Vista Nixie Clock > >______________SNIP_____ > >Either way you'll end up with something over 300V DC >> >> -tony > >Worth pointing out that in general, you don't need anything like 300 >volts. Most nixies will run very well at no more than 120 volts HT >supply-and if you make your own drivers then 300 volt ( cheap and >readily available) transistors can be used. > >DaveB, NZ > > > >-- >No virus found in this outgoing message. >Checked by AVG Anti-Virus. >Version: 7.0.344 / Virus Database: 267.10.24/100 - Release Date: 13/09/2005

20 years, 1 month

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test-drb September 2005