[R-390] Filter repair

[quartz55]

I cut some 3/4" pieces out the dielectric in the 1/2" hardline I have, massaged the shape and circularity to fit on the handle of an exacto knife which is about the exact diameter of the copper cup.  Used some non-acidic RTV to glue them together in the shape you can see in the picture.  Stuffed them in the filter case to let it dry overnight, set on each end of the case.  These are going to be my first test 'donuts'.  Hope the don't melt when I solder things together.

http://i251.photobucket.com/albums/gg287/DogTi/R390A/filterdonuts_zps9909e246.jpg