I don't know what the yoke looks like for the 8 inch RCA. Could someone please post a couple of GOOD photographs so I can evaluate the issue. Perhaps I can devise a method to rebuild them.
Here is a link to Kant-twist clamps For this project I used the 1 inch size.
http://www.amazon.com/s/?ie=UTF8&key...l_67lni58w5i_e
I am not a fan of small screen sets so as a result my knowledge in this area is next to nothing.
Bob