The VAX 4000-200 I exhibited two years ago at VCF East is up for sale:
Restoration Notes:
http://www.vintagecomputer.net/browse_thread.cfm?id=608
I don't need it as much anymore now that it's pretty much a completed
project. It's very upgrade-able though if you have the desire to boost
performance and ports, etc.
The provenance of this machine, I believe, was as part of WVLink a West
Virginia email/gopher/USNET type ISP server in the early-mid 1990's.
I have it set up for telnet communications if interested. Contact me via
http://www.vintagecomputer.net/contact.cfm
Bill
Good condition AlphaServer 300, always been stored in dry conditions.
Photos: https://photos.app.goo.gl/5N66yIlEUCYkuh012
It has a TGA based DEC graphics card that will do 1280x1024 24 bit (it's a
ZLXp-E2 PBXGA-BA) - manual included.
Ultrawide 16-bit SCSI card
Brand new Seagate Cheetah 15K.4 36.7GB,Internal,15000RPM,3.5" (ST336754LW)
HDD
Ultraplex SCSI CDROM drive.
Running OpenVMS Alpha 8.3 with CDE. Can also run tru64 5.x.
All working as it should be. Very quiet system. Can provide copies of media
if required.
?175 + postage at cost.
I can supply an LK461 keyboard and mouse for an additional ?25.
I have one of these, see the photos:
https://photos.app.goo.gl/CnLnSKTCzHETzpOo1
It was bought new by myself a few years back. It can run off a PP9 battery.
?10 shipped in the UK if anyone is interested.
Regards, Mark.
I recently decided to make scan a paperback book that I happen to have two copies of. It is "RSX A Guide for Users by John Pieper? published in 1987 by DEC. I have not seen a copy of it in any of the online sources like bit savers. For anyone just starting out with RSX it is a nice general read that also covers some system topics like backups, etc. similar to the paper back VAX/VMS user and system manager books.
I?d like to make it available online but wasn?t sure how to submit it. It is about 38 MB in size so bigger than an email (at my email).
Since I didn?t have an industrial book shear to remove the binding, I used a belt sander to remove enough go the binding to pull the pages free easily and then used a paper cutter to trim the pages a bit to remove any last traces of glue that would have jammed the scanner. The book is about 360 pages.
Thanks,
Mark Matlock
An interesting 3 hours on PBS last night:
- 'Steve Jobs - One Last Thing': No description necessary.
- 'Long Distance Warrior': McGowan/MCI's David & Goliath battle with AT&T
and disastrous merger with Worldcom.
- 'Digital Man/Digital World': Ken Olsen/DEC's growth and ultimate decline.
(No doubt everyone here except myself had already seen this one ;-)
Interesting comparison of the different styles and personalities of three
men who profoundly influenced the tech world of today and their companies.
Thoroughly enjoyed it.
m
> Lastly, I wonder if there might be some kind of checksum check to prevent tampering. Is there a common way this is handled in 8085 world? Or is it entirely programmer dependent?
One approach that <may> be doable for you is if you have a good ROM with a known checksum, make your changes then calculate the difference between the new and the original checksum and make another change somewhere innocuous to bring the checksum back to the original value. "Innocuous" may be the trick - perhaps some text string you don't care about, copyright notice etc. or maybe there is an empty area in the EPROM you could stick a byte.
Richard Sheppard
On Tue, 4/17/18, Eric Smith via cctalk <cctalk at classiccmp.org> wrote:
> On Mon, Apr 16, 2018 at 7:29 PM, Chuck Guzis via cctalk <cctalk at classiccmp.org> wrote:
>> Disassembly is never lots of fun,
>
> Some of us might disagree.
> But then, some of us might be masochists.
I was just thinking the same thing. This whole discussion
has taken me back to fond memories of writing a 68000
disassembler in AWK (long story).
BLS
> From: Paul Birkel
> the blinky-lights controller panel top-dead-center :->.
Yeah, that's a TC08.
I actually have one of those inlays, it's the only original inlay I have. It
was the model for the large run of blank inlays (black backing with the holes
on the back, but nothing on the front) I just had made. At the moment, it's
sitting in my indicator panel stand with little bits of tape stuck to it:
http://ana-3.lcs.mit.edu/~jnc/tech/QSIC/jpg/PanelMounting.jpghttp://ana-3.lcs.mit.edu/~jnc/tech/QSIC/jpg/DasBlinken2F.jpg
so it can be an inlay for the RKV12. If anyone needs a TC08 inlay, I'd be
happy to trade it for any other inlay (as long as I have one original for
engineering purposes).
Sigh, need to get back to the inlays and take the next step with them!
Dave B and I got derailed trying to find/fix a flaky on the QSIC - on my
prototype, it would occasionally get NXM's running the RK random exerciser I
wrote. I was trying to figure out what the problem was, and I got tired of
the prototype sticking out in my way:
http://ana-3.lcs.mit.edu/~jnc/tech/jpg/tmp/JNCQSIC.jpg
(with the FPGA daughter-board on top, even with short cables, it has to be on
an extender), so I rotated the QBUS chassis 90 degrees so the QSIC was on
top, and took the opportunity to re-order the boards. Bad mistake! Now the
problem has gone away and I can't re-create it!
Noel
> From: Eric Smith
> But then, some of us might be masochists.
I think pretty much by definition if you're into vintage computers, you have
to be a masochist... :-)
Noel
