Some CRT rebuilding pictures

[Gleb]

Arrival



Cutting off the old gun



New guns





Cleaning

[Gleb]

Aluminizing

[nasadowsk]

Ok,, where the heck can you still get P4? Someone makes it?

[Popester]

Are these current day images? That’s quite an operation going on. Thanks for the posts.

[miniman82]

Possibly LLC Melz?

[Dave S]

Originally Posted by nasadowsk

Ok,, where the heck can you still get P4? Someone makes it?

I believe we have P4 phosphor in inventory at the Early Television Museum. Whether there's still a source for it is another question.

[Notimetolooz]

There is a video somewhere ( I tried looking at ETF for it but didn't find it) taken a RACS in France. It shows how they deposited new phosphor. Two different clear solutions are mixed by pouring them into the CRT bottle. The chemicals react and form a white power in the solution,which is allows too settle to the bottom where the screen is. After a while the solution is carefully poured out and the bottle dried.

[old_tv_nut]

https://www.youtube.com/watch?v=byCeMKzPJgM

[Notimetolooz]

Thanks for locating the video.
They had some pretty lax safety procedures. Not a very good idea to be smoking while handling chemicals (France of course). Using food containers to mix chemicals (with the labels still on) isn't a wise thing to do either. OSHA would have shut them down in the U.S.

[edison64]

And here's the video done at Hawkeyes here in the United States...

https://youtu.be/W3G7b-DcOO4