Hi Guys thanks. When I play low D it sounds fine. Then while playing low D, I press down the G# key on the pinky table and the Buzz starts.
Also, If I pay low C# and lift the low F# key/finger there is no buzz. When I press the F# key down again while playing low C# the buzz comes back of course.
I'm not sure if this means if I have to tight the screw that closes the g# key or not given this new info. And if so where is that screw? BTW this is a new horn (several months old).
Thanks a ton.
So, the screw regulating the F#-G# connection needs tightening.
1. Action the G# key and watch your horn. You will see a pad moving: it's the G# pad. You will also see a screw above the pad cup.
2. Tighten this screw very slowly in steps (1/8 turn at each step should be enough, maybe even less when you approach the correct regulation) and after each step, control if a change occurs in low D when you press G#. You stop when you can't detect a change any more, of course! Don't overtighten the screw, because it would harm the notes below F#. To fine tune the regulation, you can make a back and forth: when you have tightened the screw and don't detect a change, back off by a (very) small amount and control again,...
3. When you are happy with the regulation, it would be a good idea to pour a drop of clear nail varnish on the screw threads to block the screw. But don't use anything stronger than nail varnish (superglue would be a very bad idea!).
P.S. When you are at it, you can see an other screw just below this one, that controls the regulation of the bridge between the stacks (to play Bb with the fingerings 1+1 or 1+2)
-when this screw is not tight enough, Bb played using the 1+x fingering is stuffy
-when on the contrary this screw is overtightened, the notes below F# are more difficult to play.
You could also control if the regulation of this screw is correct. Or if you never use the 1+x fingering, at least check that the screw is not overtightened.