Glenn,
This is fantastic news! Congrats - another find of the year! It is hard to believe that they are coppertone, let alone a set of A906's.
The tub light is probably burnt out - not a problem. Head to L*we's or Menards and pick up a 15w and a 25w 120v double pole bayonet bulbs. It calls out for a 10w, but I tried the 15 and the 25, and perfered the extra light of the 25w bulb in my A806.
This is awesome!
Ben