Not sure what year this set is but could be 1950 looking at the knob arrangement. CRT looks to be a 12" or 16", too bad so far from me!
http://cgi.ebay.com/VINTAGE-1950S-TRANSVISION-TELEVISION-SET_W0QQitemZ330020654628QQihZ014QQcategoryZ3638QQ ssPageNameZWDVWQQrdZ1QQcmdZViewItem

"The fan actually runs just fine and the tubes in back of this item light up and glow."

The fan?? :scratch2:

Oh, I see it now, someone has added a fan aimed at the transformer to keep it cool. :saywhat: