Posted by Dean on April 24, 2002 at 15:03:33:
In Reply to: Piston or Rotary posted by Nobody on April 24, 2002 at 14:32:17:
Speaking purely of physics, piston valves are much more efficient, and are usually, therefore, faster. Rotary valves are slower, I suppose, but they'd also have less travel, which can make them faster, as long as they are made well. Who knows--I'm glad I play euphonium and don;t have to worry about it.. :) But, if I had a choice, all other things being equal, I think I would choose piston.