I am currently building a Low D (D4) whistle with 25mm OD tube. I have a commercial model to use as a reference, so it is going well.
My next project is an Alto F. Unfortunately I don’t have access to one. So I was wondering if anyone could either point me in the right direction to any online resources or give me some measurements. The first is, what diameter tube is your whistle made with? what is the overall length and a bonus but not strictly needed hole spacing and size.
Any help would be appreciated.
Thanks
Martin