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I started work on it tonight.
Nothing major, just pulled all the tubes, sprayed out the controls and tube sockets and cleaned the dirt off the chassis. Most of it was loose fluff and it came off easily with a brush and vacuum cleaner, then a little spritz of cleaner here and there.
I noticed that both of the potentiometers have switches on them, one is on/off, Brightness the other is on/off Contrast (the cover page of Sams has an error where it calls them both out as Contrast controls). The second one switches of the "Y" section of the power supply only, I haven't figured out what that is yet but possibly it cuts out the TV circuits when you want to listen to the radio?
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