Posted by bloke on January 09, 2004 at 13:22:01:
In Reply to: Re: Re: Looking for... posted by Dean E on January 09, 2004 at 12:48:04:
I've come across a few larger bore Eb York instruments. For instance, my Eb sousaphone ("Pioneer" stencil that I made into a helicon with a 19-1/2" York "Monster" Eb bell) had a larger bore like this (.68X") ...It had the same diameter pistons as the standard smaller bore instruments, but skeletonized with (obviously) larger diameter ports and larger bore slide tubing.