[Dan Walker]

I do appreciate the compliments.  As Arran said, these knobs are hard to get  in good condition,
and I am always looking for them, in fact I will buy a radio with them JUST for the knobs.
   These radios are not too hard to work on , but as Arran said you will need a speaker, for starters.
     If it is a model 11RA 651 it should have a 6X6 eye tube, which is quite rare , but there are some things you can do to use a 1629 tube  in place of it  using a voltage doubler.
 I have only found two 6X6 tubes with fair brightness in fifteen years.
  I wish you luck in finding the knobs and getting the radio working as  the cabinet looks good.
 Dan in Calgary