My dear old brother bought a new Yamaha amp and tuner, back in 1985. He sold it to me several years later and I later gave it back to him on his birthday several years after that, when he lamented about how much he missed his class A amp. Then, I ended up with it again here recently, and by now, both pieces had issues from my brothers frequent moves and hardcore Rock mini concerts. So I sold them both on e bay. I now regret it terribly! I would try to hang on to them, as you can always sell them or chop them up for firewood or something. But once they're gone......