I have a question and a comment:
Q - What year is that GE set from? CTC15's are 1966 or 1967, right?
Comment - Thw wax dripping from the fly may be indicative of not replacing Horiz out, HV Reg and HV Rect tubes at time of CRT replacemnet. I was told by an old TV guy in the '70's that it's a good idea to replace all 3 as a set with a CRT rebuild or new replacement.
Q - Do others in the forum have opinions on that?
Q - Would it make sense for snelson to replace them now if the fly is still good?
OK that's three questions....