05-09-2018, 02:14 PM
Well I dunno if it should have a 50B5 or 50C5 but was common in that time period for same sets to have different tubes(of course for Philco depends on code number). If the audio output transformer is connected to pin 5 it uses a 50B5, if on pin 7 it should have 50C5.
Assuming a 46-Something, would be impossible(at least from factory) to have a 50C5 as that tube wasn't introduced till 1948.
Assuming a 46-Something, would be impossible(at least from factory) to have a 50C5 as that tube wasn't introduced till 1948.
Tom
