Originally Posted by walterw
i've never heard of such a thing.
I never heard of it either. I've seen some really early EMGs when I worked at American showster, and even own an old Overlend EMG mini humbucker.
I'll mention this again, that if you are using the original EMG J (not the X), it will sound better if you run it at 18v, and use 100k volume and tone pots. Its output impedance is too high to work well with 25k pots.