[TonyJSenior]

I think I'll leave the output tube as is and not bother with the rewiring required and put a note on the bottom of the radio about the change. If the filament voltages aren't too far off I may leave R5 in place as well. One thing I noticed with this set also is that the pilot doesn't have the initial bright illumination, dimming and gradual brightening as some other typical transformerless AA5 sets I have. This one appears to be off for the most part until the tubes warm up and start conducting - going to take a closer look at the schematic of each later and see if I can figure out what's different with the Philco.

One other question I had and forgot to post earlier. On the print there is a connection from the voice coil to pin 2 on the antenna connector jack and doesn't seem to be carried through at the plug. Any idea what that is for?