The open bugle of a Dynasty GG I had here a while back measured roughly 22.5 feet.
The open bugle of a BBb tuba is roughly 18 feet.
The tuning circuits for a BBb tuba are roughly:
BBb
1st valve = 26.66"
2nd valve = 12.66"
3rd valve = 39.32"
4th valve = 69.32"
Take those BBb measurements times 1.25 to get your rough lengths for GG tuning circuits.
Acoustics Guys: Help!
Forum rules
Be kind. No government, state, or local politics allowed. Admin has final decision for any/all removed posts.
Be kind. No government, state, or local politics allowed. Admin has final decision for any/all removed posts.
-
Dan Schultz
- TubaTinker
- Posts: 10424
- Joined: Thu Mar 18, 2004 10:46 pm
- Location: Newburgh, Indiana
- Contact:
Re: Acoustics Guys: Help!
Dan Schultz
"The Village Tinker"
http://www.thevillagetinker.com" target="_blank
Current 'stable'... Rudolf Meinl 5/4, Marzan (by Willson) euph, King 2341, Alphorn, and other strange stuff.
"The Village Tinker"
http://www.thevillagetinker.com" target="_blank
Current 'stable'... Rudolf Meinl 5/4, Marzan (by Willson) euph, King 2341, Alphorn, and other strange stuff.