Yamaha Soundboards

[Richard Brekne]

Erwinspiano@aol.com wrote:

>   Hi Rick 
>  Koniche wa (undisputed king of Norway)
> Actually this doesn't surprise me. Since Sitka spruce is the strongest 
> of the spruces I believe drying down Sitka that low is possible with 
> out damage if it's not living in the jungle or missouri
>  Even on occasion when I've dried down panels of tight 
> grained Sitka for the desert clients to 4.5% EMC, I saw no evidence of 
> compression ridging after stringing or before it left my shop even 
> though my area is a more humid climate than Nevada.
>  If your taking softer wider grain Eastern spruce or Engeleman then 
> buckle your seat belt. Ask me how I know.


Grin... ok, I gotta bite... how do you know about Eastern Spruce or 
Engeleman... details please... hehe.. specially the gorry ones.

Cheers
RicB

>    Dale
>
>     Hi folks.
>
>     Having spent the month of october at the Acadamy in Hamamatsu, I
>     had the
>     opportunity to meet a couple of the more legendary technicians in
>     Japan.
>     One of these was a fellow named Mr. Takahara who had been involved in
>     design issues for the CF III for many years and recently moved on to
>     work for Steinway Japan.  You all know me and  my interest in
>     comparing
>     some of the information tossed around here on the list with what
>     thoughts such people have whenever the chance permits, so I asked
>     him a
>     few things about soundboards and plates. According to him every
>     soundboard panel meant for domestic instruments is dried to 4 % EMC
>     before ribs are glued on. This is also the case for several
>     instruments
>     being made for export, depending on the end destination.  I was of
>     course a bit suprised by all this given the very high humidity in
>     Hamamatsu while I was there. When I mentioned some of the concerns
>     aired
>     on this list about drying panels out so much he simply said it was
>     not
>     in his experience that this created any special problems for
>     pianos that
>     are correctly cared for.
>
>  
>  
> Erwins Pianos Restorations
> 4721 Parker Rd.
> Modesto, Ca 95357
> 209-577-8397
> Rebuilt Steinway , Mason &Hamlin Sales
> www.Erwinspiano.com