[radiohenry]

I just looked on line and your radio is listed at Radiomuseum. Google Philco 46-806 radio and you will find the listing at RM. The schematic is shown as well.Information can be downloaded with out being a member. I did see that a ballast tube is used . There is an arrow on the ballast tube if you notice. The chassis may be stamped 120 say to the left side and 220 to the right side and the arrow on the ballast tube must point to the voltage setting required . So you may need to remove the tube and re orientate in the proper direction . The ballast tube being the tube on the right side looking in from the back of the radio. It is a perforated metal housing that will become quite hot in use. 
                                                                GL,
                                                                      Henry