I'm new to the tube market. But I'm picking up an old Vibro Champ and am wondering what i can expect by replacing the tubes. I love the way it sounds now but I'm wondering if there's room for improvement.
Should tubes be replaced regularly or only when they crap out and how do you know when they are "bad"
Should tubes be replaced regularly or only when they crap out and how do you know when they are "bad"