Hi all,

as I already wrote earlier, the KFs can be calculated as "carbons", the density 1791 Kg/m³ works well. Actually years ago I measured a KF string with my micron and with pharmacy's precision scale. Then it was easy to calculate the density ...

Arto


On 25/04/16 11:25, Martin Shepherd wrote:
Hi Matthew,

Yes, it's a pity they don't provide us with an accurate PUL for the KF
strings as well!  They just say they're roughly the same density as gut,
which is nonsense.

The PULs are also badly labelled because they just add a 2 (which is not
really part of the number) to indicate copperwound as opposed to
silvered copper, when that information is already supplied by the prefix
letters NFA, NFC, etc. so (as far as I know) "NFC212" (copperwound) is
the same as "NFA210" (silvered copper).  If I'm wrong, please correct me!

Martin

On 25/04/2016 10:13, Matthew Daillie wrote:
Dear Hubert,

I think there is some confusion here. The PUL number (poids par unité
de longueur) is given by Savarez for its overwound strings so as to be
able to calculate tensions and varies from one type of overwound
string to another. It is not an indication per se of light or heavy
tensions but enables you to determine a particular tension for a
specific course.
Savarez used to supply a string calculator in the form of an Excel
spreadsheet but this is completely out of date and full of bugs. I
tried phoning them this morning but the technician won't be in until
this afternoon. I shall ring back then and keep you posted.
In the meantime why don't you use Paul Beier's calculator, that has
densities for Savarez strings?
What type of string do you wish to use for the 9th fundamental?
Best
Matthew


On Apr 25, 2016, at 5:00, Herbert Ward <wa...@physics.utexas.edu> wrote:


As an experiment, I put extremely light strings on my baroque lute.
This made the tone very difficult to control.   This is pretty good
practice, but in a month or two I need to venture out of the house
with the lute.

So it's string buying time.

Can someone give me a Savarez PUL number for the fundamental of the
9th course (E) at A=415 with a 68.5 cm string length?  Also helpful
would be an indication of whether the PUL corresponds to heavy, medium,
or light stringing.

Google searches gave nothing useful.



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