Posted by I'd heard on November 20, 2003 at 11:26:23:
In Reply to: Re: Re: Re: Re: Cutting a tuba Bb to Eb or F posted by David Carter on November 20, 2003 at 09:15:38:
that Schilke started with the student YBB-103 and went from there. In any case, yes, it's possible to build an Eb/F from a BBb/CC bell and bottom bow, but after that, the tapers of the large branches differ radically.