2xj Measurement

[TheHatTuba]

Does anyone know the diameter of the small end of the bell (bell to bow area)?

[mammoth2ba]

Tenon diameter is 7.25 inches (can vary slightly);

I'll measure the bow circumference tonight if you haven't had another response by then.

[TheHatTuba]

Is the big end of the bow really that big or are you talking about the tenon where the bell attaches to the tuba?

[mammoth2ba]

Hat......

Outer circumference measured at the top side of the large bottom bow ferrule on my 2xJ is 18.5 inches.

......so 5.888732 etc. diameter?

Here's a calculator:

http://math.about.com/library/blcirclecalculator.htm" target="_blank