We have an old guitar made in japan (no brand name at all). It has a reinforced neck which can be adjusted on the front of the guitar. The adjustment mechanism extends out of the bottom of the neck. What we need to know is just what the mechanics of this adjustment does.
Is it a right hand or left hand thread? And when I turn this adjustment, what exactly is going on inside the neck of my guitar and how is it doing it? When do I know it's enough, etc.?
Please help!!!
Thanks