Teletype: Problems again

the >paper. This has dissolved into an oily-like thing, and there is zero >pressure for the head against the paper. I will try to put a licorice >candy (L?kerol) in its place as a kludge, but it very likely won't last. >Do you know what causes it? Where to get a new one? Is that SUPPOSED to >happen?' Melting rubber, crumbling rubber what nots, I seen those, first time last week for latter, former many times in my life. Found two RCA PIP modules had that brown, sticky goo everywhere from where tan rubber bumpers used to be, YUUUK! RCA used them to keep tin shielding from shorting out on solder side circuit board. Goo also sometimes causes problems. Have to clean those off. And that PIP modules were used in CTC169 chassis (both for direct view tube and tv projectors). Manufactured between 1989 to 1996 era. About 10"x5"x2", pocked with holes for ventilation, usually 3 to 5 plugs in one row on one side. What kind of cleaners really successfully dissolves that goo? Have to do it easy and quick. CTC169 was produced by the zillions and wildly popular back then and we still see them all the time and it's a good money maker so far. By the way, rubber bumpers still used in many RCA later chassis like 177, 187, 19x (most recent versions that just stopped in production). Cheers, Wizard