I had a grid cap fall off a 75 and I successfully resoldered it back... but the glue I used didn't hold the metal cap onto the glass so It's only held by the solder now. I've removed the "non-stik" glue mostly, but does anyone have a suggestion as to a good product I can use to keep this cap securely attached to the glass?

Try Gorilla glue. Use just a small amount because it grows.

Thanks.. Have you had some actual experience with this on glass/metal before so you know for certain it'll work?.. I DO see that often in my local hardware store.. so I'll try it tomorow..

:Try Gorilla glue. Use just a small amount because it grows.

I tried it on two G style tubes and it seemed to hold good. I don't know how long it will hold up to the heat. Time will tell. It takes a while to set up. Resoldering the cap did not seem to bother the glue. Just dampen both the glass and the cap with water (don't soak) and apply a small amount of glue.
MRO

:Thanks.. Have you had some actual experience with this on glass/metal before so you know for certain it'll work?.. I DO see that often in my local hardware store.. so I'll try it tomorow..
:
::Try Gorilla glue. Use just a small amount because it grows.

As an old veteran of Westinghouse Electric, when WX made tubes, we bought cement from Sauereisen. This is designed for high temperature. Don't know if you can buy just a small quantity, but here is their website:

http://www.sauereisen.com/c_prod/c_specialty.asp

Good luck.... Rich
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:I tried it on two G style tubes and it seemed to hold good. I don't know how long it will hold up to the heat. Time will tell. It takes a while to set up. Resoldering the cap did not seem to bother the glue. Just dampen both the glass and the cap with water (don't soak) and apply a small amount of glue.
:MRO
:
::Thanks.. Have you had some actual experience with this on glass/metal before so you know for certain it'll work?.. I DO see that often in my local hardware store.. so I'll try it tomorow..
::
:::Try Gorilla glue. Use just a small amount because it grows.

I drizzle in super glue under the cap after it has been soldered into place. The excess can be gently scrubbed away with an S-O-S pad or it can be scratched away with a razor. I've also used super glue with H.O.Ts. (redundantly, Horizontal Output Tubes). These tubes do get HOT, but the glue seems to hold for a while. I suppose Gorilla Glue would ben an excellent choice. I've never tried it with tubes, but it works great elsewhere. The only place where I don't like it is with veneering. It holds the veneer down well, but it swells and gets out at the seams.

Thomas

Boy.. that's all great.. I'll try tese ideas... Thanks for the quick solutions.

I think it's important to get the grip cap soldered first, before gluing. When the grid cap is loose, you can pull it up gently, and confirm that it's soldered securely.

Ok, thanks.. that I have done..
and it is secure and works in the radio with the grid-cap clip gently attached...as the cap is not tight to the glass yet... 2nite I'll try a little brush-on super-glue and if no luck 2morrow I'll try the Gorilla Glue