regulation problems in Aeolian era M and H 50"

[Richard Brekne]

Hmmm... well... to begin with... a key dip over 11 mm is just plain 
wrong no matter how you look at it. An action with up to 20 mm of dip 
and still doesnt bottom out has something very wrong with it indeed, 
perhaps something wrong with the whole keybed.  You are either going to 
have to figure out whats wrong yourself, or get somebody to help you 
look it over.  Regardless of how much you know, a bit of outside help 
can ofte times be worthwhile yes ??

Cheers
RicB

Piannaman@aol.com wrote:

>
> Ric,
>
> I don't know if it's even posssible.  I'm convinced the geometry is 
> totally screwed up, and I need to figure out why and where.
>
> The key dip before I changed the punchings and added cardboard 
> punchings was anywhere between 12mm and 20mm depending on how hard you 
> pushed.  In other words, it was not governed by the front rail 
> punchings, rather by how hard you pushed and forced the capstan to the 
> wippen, jack to hammer butt, hammer to string.  Even then, the keys 
> were not touching the punching.  I think that this piano was built in 
> the dying days of Aeolian, and that they forgot to check things, like 
> keydip.  It is weird.  And the thing has been tuned regularly since 
> new, judging by all of the pencil marks on the plate.
>
> Thanks for the input,
>
> Dave