test-drb

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101090 discussions

Seeking immediate rescue of full-rack SGI ONYX near Northbrook, IL

by ian.finder＠gmail.com

Does not require three phase. Complete system, includes sirius video and other fun stuff. RealityEngine2 Needs to be gone in a week or two- had made other arrangements but they have fallen through. Call Ian - two two four 659 four two zero 4 -- Ian Finder ian.finder at gmail.com

9 years, 7 months

Unknown transistor repairing a TI990/5 power supply

by alberto＠retrocomputing.eu

I'm working at the power supply of a 990/5 minicomputer. The chassis is a 6 slot version, with 20A power supply. After a few minutes of working, the fuse blow and I found a transistor on the main power supply board with collector in short circuit with emitter. The transistor has TRW logo and is market with Texas part number 996070-003, in addiction with the date code. Pictures of the transistor here : http://www.museodelcomputer.org/parts/texas/990_5/IMG_6442_transistor.JPG http://www.museodelcomputer.org/parts/texas/990_5/IMG_6445_sotto.JPG Google give me only a link, were it seem to be an Optek SVT6747 ... another unknown transistor :( Someone has experience with this power supply ? http://www.museodelcomputer.org/parts/texas/990_5/IMG_6423.JPG Texas part number is 944970-0001 Thanks for any help ! Alberto ------------------------------------------------------ Alberto Rubinelli A2 SISTEMI ELETTRONICA, INFORMATICA, NETWORKING Via per Occhieppo, 29 Tel 015 8853203 13891 CAMBURZANO (BI) - ITALY Fax 015 8853202 Mobile +39 335 6026632 Mail : alberto at a2sistemi.it Web : www.a2sistemi.it FONDAZIONE MUSEO DEL COMPUTER ONLUS http://www.museodelcomputer.org Mail:info.museodelcomputer.org Tel 015 8853201 Fax 015 8853202 ------------------------------------------------------ Le telefonate con numero nascosto sono filtrate Calls with no caller identifier are filtered ------------------------------------------------------

9 years, 7 months

Calling all typographers

by blstuart＠bellsouth.net

On Thu, 4/28/16, Rod Smallwood <rodsmallwood52 at btinternet.com> wrote: > Every fancy curve there is but not a straight > forward line and circle method of? creating lower case > characters I'm not sure if you count it as straightforward, but I'd suggest METAFONT. Straight lines are certainly straightforward. Circles are a little more fun, but once you get the hang of the math, most any curve is pretty easy to create. BLS

9 years, 7 months

strangest systems I've sent email from

by blstuart＠bellsouth.net

On Thu, 4/28/16, Rod Smallwood <rodsmallwood52 at btinternet.com> wrote: > How about morse by a key made in 1898 . Then cw to ascii serial > converter and? normal program input after that. I've often thought of doing that! Though my key dates from more like the '40s or '50s. I see a weekend Raspberry Pi hack in my future... BLS

9 years, 7 months

strangest systems I've sent email from

by blstuart＠bellsouth.net

On Thu, 4/28/16, Liam Proven <lproven at gmail.com> wrote: > Oh, yes, indeed! I have a Plan 9 VM, and I intend to try it on my Pi. > But it's had relatively little impact on mainstream Unix. I would agree, given the qualification "relatively." There are several things that have made their way from the late research UNIX editions and Plan 9 to the mainstream UNIX world. The unfortunate part is that they're little bits and pieces and as a result miss the major advantages by not bringing in the big picture. For example, the proc file system that most UNIXs have today was originally in either 9th or 10th edition and is a central part of the design of Plan 9. The _clone() system call that now underlies good old fork() in Linux is basically the Plan 9 rfork() call. Several UNIXs are starting to graft in per-process name spaces. There are also a number of research systems that are bringing in a lot of Plan 9 influence. The only one whose name comes to mind at the moment, though, is Akaros. BLS

9 years, 7 months

Calling all typographers

by blstuart＠bellsouth.net

On Thu, 4/28/16, Rod Smallwood <rodsmallwood52 at btinternet.com> wrote: > On 28/04/2016 16:32, Jon Elson wrote: >> Have you tried MetaFont?? I've never actually created a font with it, >> just used it automatically within the TeX environment.? But, there is >> a human-readable language that defines the characters. > > I haven't where would I find it? It should be part of pretty much any TeX installation. I don't know if anyone has packaged it up independently of TeX though. If you don't already have TeX installed, I'll warn you that the mainstream TeX distributions are pretty huge. There's a build-from-source distribution called kerTeX that I use. It's much closer to Knuth's original packaging and I find to be quite a bit more managable. If all you need is METAFONT, then that might be a nice way to go. BLS

9 years, 7 months

strangest systems I've sent email from

by blstuart＠bellsouth.net

On Wed, 4/27/16, Liam Proven <lproven at gmail.com> wrote: > ... with a few weirdos saying that 6809 was better than > ... and a few weirdos maintained that Forth was better. > ... while the weirdoes use FreeBSD. I've never been more proud to be classified as a weirdo :) > The efforts to fix and improve Unix -- Plan 9, Inferno -- forgotten. Plan 9 and Inferno are still around. There are quite a few of us who still use them on a regular basis. In fact, the Plan 9 updates for the new Pi 3 should be out very soon, and I have a student currently working on a port of Plan 9 to the Allwinner A20 found in the Banana Pi and several of the low-end tablets. > That makes me despair. I feel much the same way, but it leads me to a little different place. While I'll probably never be there entirely, I am now at a point where I am giving serious thought to only running software I write myself. For example, the file system I run on my home file server (a Plan 9 box) is something I wrote myself. The version of Scheme I use on Inferno is one I wrote, etc. The truth is if you're willing to be one of the weirdos, there are still some pretty interesting places to be in the computing world. There are still interesting languages both old and new to learn. (I had a blast last summer working with MCPL, an experimental offshoot of BCPL, and the ENIAC simulator I'm developing is written in Go.) I find life to be much more enjoyable and my blood pressure to be much lower as long as I steer away >from anything that's mainstream or popular. BLS

9 years, 7 months

It has been quiet.

by jnc＠mercury.lcs.mit.edu

> From: Dwight Kelvey > Has the list gone down or just dropped me again? Consulting the list archive via the Web: http://www.classiccmp.org/pipermail/cctalk/ is a good way to see if things are moving. Noel

9 years, 7 months

Digital (Was RE: Mac "Workgroup Server" (or "network server") hardware & AIX)

by dave.g4ugm＠gmail.com

> > > > Don?t fret, once OpenVMS v9.0 is released, on x86-64, there won?t be any doubt > as to who won. :-) > Sadly, no one won. I doubt any one (well perhaps not anyone) would consider OpenVMS for a new deployment. Upgrading existing environments, yes, but a new green field site. It would have to have very good reasons. (I know you will all come out with some, but perhaps one for every 10,000 Linux and/or Windows Server deployments.) Digital is now a fond memory for most. Both VAX and Alpha are no longer manufactured. I actually wonder if an FPGA VAX chip could be made that would run faster than existing real VAXEN. That could perhaps form the basis of a nice VaxStation... ... on browsing I found this... http://h71000.www7.hp.com/openvms/journal/v7/vax_6000_emulator.pdf Dave

9 years, 7 months

Data General Nova Star Trek

by shermanfoy＠att.net

under the heading of d?j? vu, if this unit is a Rockwell Collins mil hand paper tape puller, my old roommate ran the qualification tests on the development of that system. That happened here in Santa Ana @ their Harbor & Warner facility. They drove around the parking lot in the bed of pickup trucks pulling tape and loading systems w/ potholes & speedbumps in the way.

9 years, 7 months

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