[CAUT] Sperrhake Harpsichord wire

[Fred Sturm]

On Dec 6, 2009, at 1:17 PM, Ron Nossaman wrote:

> Fred Sturm wrote:
>
>>    How significant is this under what circumstances?
>
> More to the point, what indication do you have that either of these  
> formulas you're using reflect reality? The Sanderson formula I gave  
> you shows no change in break% with wire change. The Hays formula,  
> from A Guide To Restringing, also shows no change in break%.
> Ron N


	So you are saying you ran those same notes and lengths and diameters  
with Sanderson and Hays? And found no change in break%? If that is the  
case, I guess I am willing to concede it isn't clear cut. But I'd like  
to see your figures just for the record, parallel to what I provided  
(note, length, diameter, tension, break%). Doesn't take that long to  
do, and, hey, if you convince me I'll shut up <G>.
	Years ago I fooled around with a couple spreadsheets and came to the  
beliefs I have stated based on the results. I couldn't find those  
spreadsheets in the last few days and thought they got lost in a  
computer change, hence asked for help (and said I hadn't done any  
calculation since my memory could have been faulty and I might have  
entered the numbers wrong). What I did in the last two days  
reconfirmed what I had seen before, and since the two quite different  
sheets came up with almost identical results, I assumed it was likely  
to be reliable. But my mind is always open to the thought I could be  
wrong.
Regards,
Fred Sturm
University of New Mexico
fssturm at unm.edu