If you are looking for the audio interstage transformer which drives 45 output tubes they are available. AES, tubesandmore.com , sells P-T156 which is similar to Stancor A53-C. Play Things of Past, oldradioparts.com , will also have them and A63-C which has a better frequency response. You will need to select from a list at Play Things of Past.
Norm
: Je recherche interstage input for philco model 111
: no, the tranfo is 3537
: Tanks you
Je ne vous comprende pas. Quest-ce ca veut dire?