Removing physical blemishes from CRT?

From: Dwight K. Elvey <dwight.elvey_at_amd.com>
Date: Tue Apr 13 11:37:25 2004

>From: "Vintage Computer Festival" <vcf_at_siconic.com>
>
>On Mon, 12 Apr 2004, Dwight K. Elvey wrote:
>
>> It takes quite a bit of elbow grease but yes, it can be done.
>> Usually you use some 10 to 20 micron aluminum oxide to fine
>> grind until you are past the scratch. Then you use rouge or
>> cerium oxide to polish. It is a process similar to what we do
>> to make a telescope mirror.
>
>Do I have to worry about any heat build-up that might cause a fracture of
>some sort?
>
>So sounds good so far. Can I just go to the local telescope store and
>pick up the materials? Can I use my Dremel to do the polishing for me?
>
>--
>
>Sellam Ismail Vintage Computer Festival
>
Hi Sellam
 You might check at places like stained glass supply stores or
places the do beveled glass. They have polishing compounds that
are designed to be used with a buffing wheel. The technics I
used are designed to end up with a surface that is smooth to
less than 1/8 wavelength of light. You don't need anything
like that for a screen. Most telescope stores don't have supplies
for doing mirrors. I mail order my supplies from places like
Newport Glass or William-Bell.
 Check with places that sell and repair window glass. If they don't
have anything there, they'll at least know where to get it.
Dwight
Received on Tue Apr 13 2004 - 11:37:25 BST