This is a multi-part message in MIME format. ---------------------- multipart/alternative attachment Bill Ballard wrote: "That judgement call aside, it's still interesting that things should=20 look so good from the top side. I know when a crown has reversed and=20 bridges have rolled that such a board can give false positives on=20 downbearing. But I would expect that to be accompanied by badly=20 negative front bearing. Which is not the case here." I would argue that reports suggest that "badly negative front bearing" = is indeed the case: "...at the mid-treble break where front bearing disappears..." If it ain't right, it ain't right! Terry Farrell ----- Original Message -----=20 From: "Bill Ballard" <yardbird@vermontel.net> To: <pianotech@ptg.org> Sent: Saturday, October 04, 2003 12:26 AM Subject: Reading a Board > Dear List, >=20 > I have a 110 -year-old B with a 35 year old board (NY: Camilleiri?=20 > A&C?), with whose voicing I've hit the "wall". This is the main=20 > concert piano for one of my summer music programs, and the piano=20 > lives over the winter in the uninsulated concert shed. I believe=20 > (based on 8 years of taking care of this piano) that I've hit on the=20 > best musical use of the resonance in that board, but still the 5th=20 > and 6th octaves never balance satisfactorily with the rest of the=20 > piano. (35 y.o. board & block, 15 y.o. stringing, and 6 years ago, I=20 > put new action parts - NY hammers. This summer I did sell them=20 > Pianotek's turnbuckle brace.) >=20 > Underneath, the crown has collapsed. I've got an M-shaped board: the=20 > bridge has pressed a downwards ridge into the soundboard, all along=20 > the treble bridge, except when the bass bridge stands behind it=20 > (between ribs #2-5 counting from the bass corner). Here the long=20 > bridge has crown under it, and it's the bass bridge which furrows the=20 > board. The board BTW, doesn't show compression ridges. >=20 > On top, there's respectable downbearing *and* front bearing=20 > throughout (the only exception to front bearing is at the mid-treble=20 > break where front bearing disappears, but downbearing is still=20 > respectable. >=20 > Having listened to some fine new factory fresh Bs at Marlboro this=20 > summer, this board's resonance needs to be better. Based on the crown=20 > readings, I'd tend to say that we shouldn't expect anything better=20 > from this board. >=20 > That judgement call aside, it's still interesting that things should=20 > look so good from the top side. I know when a crown has reversed and=20 > bridges have rolled that such a board can give false positives on=20 > downbearing. But I would expect that to be accompanied by badly=20 > negative front bearing. Which is not the case here. >=20 > Bill Ballard RPT > NH Chapter, P.T.G. >=20 > "Trust me, you've got all the equipment, You just need to read the = manual" > ...........Reese Witherspoon in "Legally Blonde" > +++++++++++++++++++++ > _______________________________________________ > pianotech list info: https://www.moypiano.com/resources/#archives > ---------------------- multipart/alternative attachment An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/51/ea/87/93/attachment.htm ---------------------- multipart/alternative attachment--
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