I just got a very clean Fairchild Channel F System II and it seems to work pretty well. The problem I have is that the color is really messed up. Is it true that there is an adjustment pot located inside? I tried opening it up to see for myself but only two screws are exposed and removing them got me nowhere. I am hoping someone can tell me whether or not there are screws located underneath the cork foot pads. They are in really nice shape and I don't want to remove them unless I am sure I have to.