Oh brother.
I have the exact same problem(not with a Herron) and no matter what I’ve tried from everybody I’ve spoken to nothing helps. SS or tube. It suddenly started one day and I wonder if some sort of magnetic field developed in my large apartment building that I can do nothing about short of moving which is impossible. Digital is fine. Analog is no longer viable.
I have the exact same problem(not with a Herron) and no matter what I’ve tried from everybody I’ve spoken to nothing helps. SS or tube. It suddenly started one day and I wonder if some sort of magnetic field developed in my large apartment building that I can do nothing about short of moving which is impossible. Digital is fine. Analog is no longer viable.