06-22-2014, 11:17 PM
I would not turn a higher end model down if it were in good shape, for a reasonable price, in spite of how people look down their nose at the 1939-42 Philcos they are all decent performers. Those 40-180 and the successive models in 1941 and 42 also had a cheap but cleaver way of including a push pull output stage on a budget priced set using what Philco deemed as "Screen grid inversion", without using an audio interstage transformer or a phase inverter tube. It does not work quite as well as a true push-pull setup but it's still an improvement over a single ended output stage.
Regards
Arran
Regards
Arran