Is that rebound tester a commercial unit, or is it shop-built?
BTW: I got an unusual PM from someone about this and some of my other demonstration projects so let me explain... I'm well aware that nothing I'm showing is rocket science and I try to give decent verbal descriptions and show pictures to help some of the folks that are learning this for the 1st time. Some people learn with pictures some folks need written words etc..
Ray
Ray, I'd like to have a nickel for each PM I got saying I was getting too simple in my explanations. You are correct, not all have seen some of the things we do done before. Keep doing what you are doing and ignore those others. Bang up job on this one I must say.
"Billy G"