It could be static electricity, going to ground through the cartridge. Does your HVAC system remove a lot of humidity from your home's air?
Why is my Nottingham picking up so much dust noise
Why is my Nottingham picking up so much dust noise? It never did that before. Records would play clean through without any trouble. Now it clicks , pops and burps. I look at the record for signs of trouble and there's nothing there. Clean a new record on my VPI cleaning machine and it still pops. What Gives?