"Convertible Tuba"? What, ya play the dang thang with the top down? He he, saw them in a catalog and wondered if they come in sport model as well. Hey Martha! I just bought me a 2005 Convertible Tuba complete with 3 nickel plated overhead valves, dual spit valves, ram air mouthpiece, .728" bore, 17 - 1/2" bell, and high gloss lacquer finish! Wanna take it for a spit or two?
Why there's even a "Convertible Euphonium" model with Gold Brass receiver and 3 nickle plated alloy pistons!
Lets put the top down and go for a spit!