Being unnerved wasn't an attack on you. It was just a general statement. It's not uncommon for folks to come to this forum and ask how to build a channel letter or install a cabinet sign or something similar. That's just not the kind of thing you're going to learn proficiently on a forum.
Like I said, I suspected you probably had a neon bar sign and now that you've confirmed it, it's a lot easier to provide help.
The parts that likely need replacing are the electrodes or tube supports, both of which you can get from N. Glantz, Grimco, Reece and others. If the neon is broken, some electrical sign companies still employ neon benders that may be willing to help. With the increasing popularity of LED's though, neon benders are becoming harder to come by.