[rescue] Sun 3/50 BTW (and Sun 2 keyboard)

[Ian Finder]

Hi Peter,

So it is the typical oxidation problem on the cathode?
OK, I think I know someone local with a CRT rejuvenator. I'll give that a
go.

And I've learned this ECL display will be forever destined for the Sun
3/260 (at 1600x1200) as it is indeed single-sync. Bummer.

Still, for the 2/120 I have two video options:
1) I have some sort of Extron ECL video converter in the garage, I'll take
a closer look at this once the keyboard and mouse arrive (thanks, kind list
member!) and report back.
2) Failing that, I can switch the framebuffer to TTL and rig up my own
adapter.

I have plenty of (color) monitors that will handle the resolution and
timings in question- and I'm quite pleased to have found the requisite
matching input devices. :)
Perhaps the correct monitor will turn up eventually...

- Ian

On Mon, Feb 26, 2018 at 2:45 PM, Peter Stokes <peter at ashlyn.co.uk> wrote:

> Hi
>
> The dimming is normally due to a build up of crap in the tube, for want of
> a
> technical term.....
>
> Back in the day we 'refreshed' 100s of these old Sun mono/greyscale
> monitors
> and I still have the kit, not been used in a long time, but if anyone can
> make
> use of it, cost of postage is all I would ask for it. The results can be
> quite
> amazing in brightness and focus though no idea if it shortened the life of
> the
> tube. You can use it on colour tubes, but then you are faced with
> rebalancing
> the colours which is non trivial and hence we never used it for that.
>
> Peter
>
>
>
> Sent from my iPad
>
> > On 26 Feb 2018, at 21:26, Ian Finder <ian.finder at gmail.com> wrote:
> >
> > On Mon, Feb 26, 2018 at 9:26 AM, Stefan Skoglund <
> stefan.skoglund at agj.net>
> > wrote:
> >
> >> I'm one of those - in my  cellar is a 2/120 with:Kbd Rat Bw (ecl?)
> >> Monitor (orig packaging)4 mb memEsdi  interfaceSmd
> >> And not really for sale....
> >>
> >
> > Stefan, my most sincere congratulations, and above all thank you for this
> > valuable information.
> >
> > Earl, et. al, a few questions-
> >
> > 1) Can the 1600x1200 Sun B&W ECL monitor, which is what I appear to have,
> > work with the Sun 2/120
> > 2) Does anyone know common causes for the monitor in (1) to dim?
> > 3) Does anyone have the pinouts for the mythical type 2 <-> type 3
> keyboard
> > & mouse passive adapter? I would like to construct one.
> > 4) Does anyone have a spare VME framebuffer for a 3/260, and a spare sun
> 3
> > mouse?
> > 5) What's the best way to do a SunOS 3 install without employing the use
> of
> > a tape drive?
> >
> > After a quick fuse replacement, my 3/260 is up-and-running.
> >
> > Also, Earl, I have two 3/50s and might be interested in any ephemera you
> > have for them.
> >
> > Thanks,
> >
> > - Ian
> > _______________________________________________
> > rescue list - http://www.sunhelp.org/mailman/listinfo/rescue
> _______________________________________________
> rescue list - http://www.sunhelp.org/mailman/listinfo/rescue
>



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