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

John Hudak jjhudak at gmail.com
Mon Feb 26 23:30:58 CST 2018

The group that has been learning to rebuild CRTs is the Early Television
Org, located in Hillard, OH.
Here is a link that describes the process and their efforts to implement
the process.
It is not clear if they offer the service outside of the organization.

On Mon, Feb 26, 2018 at 11:32 PM, Matt Patoray <mspproductions at gmail.com>

> Sent from my iPhone
> > On Feb 26, 2018, at 5:53 PM, Ian Finder <ian.finder at gmail.com> wrote:
> >
> > 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.
> Yes it is a common thing to happen to old display tubes that sit around,
> some
> b come upb  ok on their own after being used for half an hour or so, some
> do
> not and need a little love tap from a rejuvenator.
> If you are going to use a rejuvenator, try and get ahold of a Sencore
> CR-70 or
> CR-7000. They are much gentler on the tube then the B&K rejuvenators.
> Before you rejuvenate, make sure you test the CRT completely to make sure
> there are no shorts of any type.
> Also be careful when removing the connector on the CRT base, monochrome
> CRTb s have really thin glass at the neck and it is not hard to break. And
> once a CRT reaches atmospheric pressure there is currently nothing that
> can be
> done to repair it. But there is a group in Columbus Ohio that is working on
> setting up a CRT rebuilding operation.
> Matt
> >
> > 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
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> rescue list - http://www.sunhelp.org/mailman/listinfo/rescue

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