[Dan Walker]

This radio has a dial light that uses 110 volts..
It is a Canadian model   very similar to the 46-420,BUT it is not the same radio.
  I have had other philco radios that used 110 volts
  Sometimes Philco did some funny things with the models that they shipped out or were made for or in Canada.
    something like Rogers mixes up the models with Majestic and Deforest Crosley.

   It is hard to find some models at times.
 Here are some photos of the dial light assembly.   originally I wanted to know what wattage should I use
for the dial light so it would not get real hot.

  Thanks for the clarification  Arran 
  Dan in Calgary