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MMD > Archives > December 2012 > 2012.12.26 > 02Prev  Next

Piano Rolls Are Damaged During Rewind
By John A. Tuttle

Hi All,  Here's wishing everyone a very Happy New Year, and a question.
While it's been known for quite a few years that loosening the rewind
brake on some player pianos solves the problem of rolls that rip during
rewind, I don't recall ever reading why this solution actually works.
Does anyone know, or can they explain it in terms that those of us
without an engineering or physics degree can understand?

To a laymen like myself, it sort of defies logic.  I've heard something
like 'one end of the spool is actually moving around faster than the
other', or something like that.

John A Tuttle
Brick, New Jersey, USA

(Message sent Wed 26 Dec 2012, 21:52:44 GMT, from time zone GMT-0500.)

Key Words in Subject:  Are, Damaged, During, Piano, Rewind, Rolls

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