[rescue] VAX 11/750s - Re: Linux wet paint, was Re: Spark10 CPU question (must fix - SPARC damnit :-) )

[Ian Finder]

I will eventually replace the TU58 roller. I've had work done by Terry's
Rubber Rollers before, and the guy always delivers good work on budget.

For now, there is a thinkpad T420 living inside of the cavernous enclosure
running Debian-stable and tu58em. Mostly, it just runs the console tape.
Overkill- could use a Raspberry Pi or pocketchip but it's always there to
pull up docs on, so good stuff...

This is only needed in normal use because out of 3 boardsets I lack the
MSCP proms. D'oh.

I have two 11/750s actually. They're fun systems.
One has a working RM80 massbus drive.



On Mon, Dec 19, 2016 at 1:42 PM, Dave McGuire <mcguire at neurotica.com> wrote:

> On 12/19/2016 01:32 AM, Ian Finder wrote:
> > Replacements? You basically got only 4 options, these days. And I don't
> > think android is a replacement for solaris- how'd we get on that... ;)
>
>   Because Android is Linux underneath, and we were discussing the
> relative merits of Linux in general, in the context of the possible
> impending orphaning of Solaris.
>
> > The 11/750s seem to all develop some kind of power supply gremlins.
> > Definitely a weak point.
>
>   Yes. :-(
>
> > As of last week it was happily runing, but one of the supplies died on
> > Wednesday- I disconnected the logic today in preparation for load
> testing.
> >
> > Fingers crossed it's just caps, but I definitely smelled something funny.
> >
> > Anyone else out there have experience with these seemingly tempermental
> > supplies?
>
>   I've not worked on one, but when I managed one commercially we had
> power supply work done on it twice in as many years.  Other than that it
> was rock solid.
>
>   How difficult is it to run that power supply outside of the main
> chassis, have you done that?
>
>   What are you doing for a TU58 drive on yours, did you repair it, are
> you using a tape emulator, or is it by some miracle still functional?
>
>              -Dave
>
> --
> Dave McGuire, AK4HZ
> New Kensington, PA
> _______________________________________________
> rescue list - http://www.sunhelp.org/mailman/listinfo/rescue
>



-- 
   Ian Finder
   (206) 395-MIPS
   ian.finder at gmail.com