Another RCA CT-100 discovery B8001599

[dtvmcdonald]

My CT-100 has a black speck on either the CRT surface or the outer protective faceplate. This is a replacement 15GP22 installed a couple of years ago.

I knew about the speck while installing it but didn't want to risk harming the CRT so I never turned it over to get a good look at the face. I tried wiping it and the inner surface of the protective glass but gave up and thought "I can remove
the outer glass after I've turned the set normal side up". But that failed because its stuck.

Has anybody tried unsticking it from the "rubber" that solidifies and holds it to the cabinet? That is, in a very safe way that won't bother the CRT or break the glass?

[Penthode]

I dissolved the rubber with water. The rubber was totally rotten on my set and I ended up removing the coil and putting the picture mask in the bathtub to soak and remove all the gunk.

Mine was goo and after removing the brass trim, I slowly was able to pull the outer glass away. But the black goo mess I think can only be properly removed by taking the picture mask out and soaking it in water.

[Penthode]

Finishing off the cabinet. Added the lacquer gold paint. The speaker grill cloth was very dirty and will see if it useable. Is there a replacement available?

Anyhow back to the chassis in the next few days.