The tubes are identical, except the base. Same heater current and voltage.
Philco didn't switch to octal base tubes until the '37 model year.
OK, so then the power transformer should be able to swap out for each other, the only other issue I could see being a problem is the mounting screw hole spacing for the power transformer from the Philco radio vs. the the GE's original Power Transformer.
08-14-2021, 07:24 PM
Threaded Mode