Hello,
On all my marconi MKVIII color cameras and the rca tk45's, (1970's) the viewfinder tubes have a yucky bubbling under the surface right the way across, what i beleive is called CRT cataracts.
I wondered what is the best way to fix this and what are the dangers of doing so?
The marconi tubes seem to have a front glass plate which is attached around the edges by what looks like thick yellow gap filler type foamy stuff, whilst the rca tk45's i havent actually tried to open and look yet.
Someone mentioned acetone, but how do you apply it and get it inside? ...just dip the CRT face down into some until it dissolves it?
apart from which method works best, i would also like to know how things are from a safety perspective, are these relatively small tubes from the 70's a huge risk for implosion still? - if you remove the glass faceplate...are these there for safety and must be placed back? or by the 70's were these purely decorative and not so much for safety as the older crt's were?
any advice is appreciated
James in australia
www.oldtvgear.com