brass v. iron

Conrad Hoffsommer hoffsoco@martin.luther.edu
Thu Dec 3 10:33 MST 1998


Allen,

>> Is that in fact why this happened - are they that different? I don't
know my metallurgy very well. Just curious if anyone out there has the
technical knowledge to verify this.

I don't have the figures in front of me, but the difference is significant
enough to have been used in bi-metal thermometers for years.   With the
right figures for your fp stringing, and a little calculator work, you
could tell by the number of beats just how far the temperature had changed.
 Well... maybe more than a little number crunching, but it could be done.

>>Yet one more rude reminder (as if I needed any more) about how sensitive
and temperamental fortepianos can be.

yup.

Conrad Hoffsommer - mailto:hoffsoco@luther.edu

         Certified Calibration Technician (CCT) of
   Biopowered Digitally Activated Tone Generation Systems
"If you have to plug it in, or you can't watch how it works,
                I don't work on it."




This PTG archive page provided courtesy of Moy Piano Service, LLC