Posted by RP-M on September 25, 2001 at 16:27:41:
In Reply to: Re: Wanted-fiberglass sousaphone posted by Lew on September 25, 2001 at 15:30:44:
Don't you mean that the 36K has the same valveset as the 20K? The 14K has the long valves, 20K has the short valves. The bore is the same on all three through the valveset.