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Shiny chassis
The CTC-5U was quite clean when I got it, but there was a moderate layer of evaporated bee's wax over the chassis along with a light to moderate layer of dust and grime. It was nowhere near as bad as some sets I've worked on - the worst of which had been underwater and was covered with dried-on mud. I think the wax et al was just from normal use over the years in an otherwise remarkably clean home. I cleaned the surface with Grease Grizzly followed by several damp rag rinses. When things were dry I removed the wax residual with Xylene and polished the surface. There aren't too many people who're concerned with dirt inside the TV set, but I like a clean set when I'm working on it!
I put the ID tags on the tube sockets and PC boards because I hate jumping back and forth between the chassis and the schematic when I'm working and want to find a location fast. They're Kroy labels and can be taken off pretty easily if you want to but I usually leave them on.
Also, for those of you who are eagle-eyed, you'll spot an added terminal board and a switch labeled "Operate/Test." The terminal board is where I can clip on my voltmeter to check the HV regulator current through a 1k resistor. When the switch is in "test" the 1k is in the circuit. "Operate" shorts out the resistor and puts things back to normal. The point of this is so I don't have to yank the chassis to check regulator current. The terminals are also useful to check ~B+.
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