Go to hornplayer.net and read the article there about the Veneklasen horn. Bob Osmun
On Fri, Jul 9, 2010 at 1:01 PM, <[email protected]> wrote: > > But I can think of reasons why a builder might want to experiment with > doubled valves. > > One possibility is that it would allow an air path without sharp turns. > > The air flow through the main body of the horn (past the leadpipe) is > so slow that anything short of mashing the tubing flat-as-a-pancake > shouldn't have much effect. Forget "air flow" and think "take care of > the standing wave," and you'll be much closer to home. > > The standing wave does not (based on horns I've played, some with > sharp turns, some with gentle "air flow friendly" crooks) care about > what the airflow is up to. > > If brass instruments relied on "air flow" to play well, the Thayer > valve would be the hands-down winner, and no rotary (or piston) valve > would even be a feasible alternative. But brass is about taking care > of the standing wave that sets up when we play, and NOT about airflow. > Therefore the Thayer valve is just one more possibility, and is most > certainly not an advantage... just another way of doing it. (I follow > intently all happenings in the trombone world). > > All valve types have certain advantages balanced with certain > drawbacks, but some work well in spite of (or because of?) their > non-concern for "air flow." > > ADiF > _______________________________________________ > post: [email protected] > unsubscribe or set options at > https://pegasus.memphis.edu/cgi-bin/mailman/options/horn/rosmun%40osmun.com > > -- Bob Osmun osmun.com We've moved! Our New Address: Osmun Music 77 Powdermill Rd. (Rt.62) Acton, MA 01720 Phone 978 823-0580 _______________________________________________ post: [email protected] unsubscribe or set options at https://pegasus.memphis.edu/cgi-bin/mailman/options/horn/archive%40jab.org
