04-21-2022, 09:39 AM
I'm not sure if you know this, and it may or may not be related to this possible issue you are seeing...but the tweeters were wired "out of phase" or backwards on most sets from the factory. Changing this makes the tweeters work much better, and increases the high notes. And maybe it will "correct" the voltage difference? Not sure...
http://www.philcoradio.com/tech/tweeters.htm
http://www.philcoradio.com/tech/tweeters.htm