A real Nut

[Thomas Cole]

Richard,

Check to see how much the key pins of the offending notes are sticking
into the front bushing. If more than 5mm, see if driving them in a
little further won't cure the noise.

That's my best guess.

Tom Cole

Richard Brekne wrote:
> 
> List
> 
> Ok... perhaps someone is going to nail this one right away... but it
> took me a bit to figure out. Still I got it in the end...
> 
> I was setting key dip today on my favorite Grotrian, been meaning to get
> around to this for a while as the dip was waaay to shallow and had
> caused some regulation creativity problems. (around 9.0 mm, perhaps even
> a bit less). Anways I roughed em in around 10 mm zip and started doing a
> few checks and right at the break between tenor and treble I ran into a
> couple black keys that made this really loud clacking sound when played
> hard.
> 
> So you tell me.... what was the problem and solution !
> 
> --
> Richard Brekne
> RPT, N.P.T.F.
> Bergen, Norway
> mailto:rbrekne@broadpark.no