Need sub test settings for 7b5/7c5 loctals

[Tubejunke]

Thanks! That is good and interesting information. Really though, I like to have vintage electronics simply working as they were designed to work. I have so many radios (many of which I wish I could move) that I don't really use a particular one all that regularly. I exercise the ones that work about once a year which seems to keep the capacitors up to par. I just thought at first that the FM wasn't working. Good thing I questioned the whole thing before tearing into circuits. This radio seems like one of those true survivors that I always feel lucky to find. All indications are that it has never been restored with only one tube not being a factory Philco tube. The tube compliment always tells me a lot about old radios and TVs. There is a mild 60hz hum that I will probably fix, but it's not all that bad as is.