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
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.JPGhttp://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.orgMail:info.museodelcomputer.org
Tel 015 8853201 Fax 015 8853202
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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
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
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
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
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
> 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
> >
>
> 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
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.