Yes I saw the bit about a self tuning guitar. There was some talk a while back about a self tuning piano, done with an electric current. I haven't heard about it for a while. I wonder if it went by the wayside? The company had something to do with QRS, I think. John Ross Windsor, Nova Scotia, Canada jrpiano at win.eastlink.ca ----- Original Message ----- From: Joe And Penny Goss To: Pianotech List Sent: Saturday, March 29, 2008 6:15 PM Subject: Re: Math/Physics Problem: degrees of rotation of tuning pin =howmuchpitch change Hi John, My attitude also, but not for the guy that is working on the self tuning piano. Did you know that there is now a self tuning guitar? Only 234 strings give or take 30 to go <g> Joe Goss RPT Mother Goose Tools imatunr at srvinet.com www.mothergoosetools.com ----- Original Message ----- From: John Ross To: Pianotech List Sent: Saturday, March 29, 2008 1:09 PM Subject: Re: Math/Physics Problem: degrees of rotation of tuning pin = howmuchpitch change I would wonder, why, with all the variables, would you be interested? It can obviously be done, but to what end? John Ross Windsor, Nova Scotia, Canada jrpiano at win.eastlink.ca ----- Original Message ----- From: kurt baxter To: Pianotech List Sent: Saturday, March 29, 2008 3:04 PM Subject: Math/Physics Problem: degrees of rotation of tuning pin = how muchpitch change Ok, I asked this on a previous thread, but I think the question got buried. How would one calculate the pitch change implied by a given degree of rotation of a tuning pin? The know factors would be: string length string thickness tuning pin diameter (and therefore radius) With those factors known, is it possible to calculate the exact rotational movement (in fractions of a degree) required to make a pitch change of say, 1 hertz at the note middle C? (this is a impractical theoretical calculation- ignoring, for the moment, and factor of friction) Anyone out there better at math than me? [kurt] -------------- next part -------------- An HTML attachment was scrubbed... URL: https://www.moypiano.com/ptg/pianotech.php/attachments/20080329/2861dbea/attachment.html
This PTG archive page provided courtesy of Moy Piano Service, LLC