Re: Happy Fun Band...

But seriously, when I was a kid I used to see the ads from Lakeside Industries
where they sold the equipment for rebuilding CRTs. They had this oven that
heated the tube while you pumped it down and sealed it, then you fired off the
getter to finish it up and you were ready to go. The equipment was only about
$5000 or so back then and was meant to be sold to TV repair shops as a way to
"supplement their incomes". I wonder how many of those ever got sold and where
are they now.

(Tongue firmly back in cheek now) While you have them apart did you also paint
the missing dots back on the center (centre for you old world types) of the
screen?

James Nelson wrote:

> Disclaimer: Don't anyone go out and do anything suggested below:
>
> The way I do tube repair is this.
>
> 1. first put on all the safety equipment - face masks, gloves, etc..., then
> carefully puncture the little tip at the end of the tube, but with some
> vacuum gum on the puncture area.
> 2. through a small capillary tube, allow the vacuum to fill with air.
> 3. Next, safely remove the band and replace the ears, and make sure the
> strap is tight.
> 4. When that's done, pull vacuum on the tube with a good vacuum pump (which
> can be made from and old refrigerator compressor.)
> 5.With that done, carefully remove the capillary tube, but leaving the gum
> to seal the opening.
> 6.Now, power it up and it should work fine now, but with the corrected
> mounting tabs.
>
> If the picture becomes a little dim or blurred over time, go back to step 4
>
> Note that while the tube vacuum is released, you can do all kinds of neat
> things. My favorite is this:
> If the tube has bad gun(s), carefully scribe the perimeter near the end of
> the neck then tap the end to release the guns and socket.
> Now you can remove the electron guns and play with them and either fix them
> or change them out with a working set from another monitor.
> When replacing them be sure to pay close attention to alignment as it is
> critical. Seal the cut with vacuum gum and a strip of duct tape. and pump it
> down.
>
> If you feel daring, you can also scribe the edge of the tube so you can fix
> or replace the shadow mask.

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