Duplex noise ratio

Horace Greeley hgreeley@leland.Stanford.EDU
Thu, 15 May 1997 08:04:15 -0700


Ron,

Not being a chemist, I can only report observed circumstances.

That being said, having tried the CA glue, it _seems_ to work against the
steel like any acetone-based product; i.e., it corrodes it.  Or, at least
weakens it to the point that, in strings have broken where the glue was
applied, rather than at a bearing point.  I should point out that many of
my clients live relatively close to the Pacific, and it is entirely
possible that the salt air plays a part in this equation, so others may
have had other experience.

I do, however, like the glue drop idea, and use white or woodworker's glue
in the same way.

My preference to glue, however, is to use combinations of cloth-backed
bookbinder's tape and/or bushing cloth to even out the sizzle.  Different
pianos and circumstances require different amounts of this zing, and what
is totally acceptable in one instance is a disaster in another.

Then there are issues of the condition of the v-bar, the plate duplex,
age/condition of the strings, et cetera ad nauseum,  all of which come into
play _long_ before I do much with the hammers other than to make sure that
they are set up as Antares has suggested.

"Let the punishment fit the crime."  Sir Arthur Sullivan.

Horace






Horace Greeley			hgreeley@leland.stanford.edu

LiNCS				voice: 415/725-4627
Stanford University		fax: 415/725-9942






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