[Carmine]

I'm going to give you some contrary advice...

If someone bothered to haul that thing up to an attic, it probably works. B&W tvs are pretty simple, so if it were me, I'd probably just blow some of the dust out with the other end of a vacuum cleaner, plug it in with the back off (keeping your hands out!) and give it a try. Might take as long as a minute to produce a picture.

If it smokes, sparks, (a little static-electricity noise is normal at start up) or does anything else abnormal, then just shut her down. As was suggested above, you can put your fingers on the electrolytic cans after it's run for a bit and see if they feel hot. If they do, you can get into some more advanced trouble shooting.

What you've been told here (and in the previous thread) is technically correct, but I think some of the guys were so overly cautious as to turn you off completely. If I hadn't just fired-up a few TVs as soon as I got them home from the curb on trash day, I'm sure I wouldn't have a more "advanced" interest today.