In Reply to: RE: Question posted by Jmmlc on March 3, 2009 at 09:53:54:
I built the Holland/Newell horn quite soon after I saw their paper.
They work well. I thought I found the magic flare rate when I built them. ( they are not a pure conical) alas, that was not to be.
But the honk comes from squeezing the sidewalls. There is absolutely no question about it. It has nothing to do with the last 10% of horn length at the mouth.
I also built a large version ( the gray one ) which was 24" in diameter to test the limited horn length idea put forth in their article.
It was cut down for other work.. only this center part remains.
bill
bill
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Follow Ups
- Found Them! - RCA-fan 03/6/0909:02:20 03/6/09 (2)
- RE: Found Them! - Jmmlc 02:38:08 03/9/09 (0)
- RE: Found Them! - angeloitacare 18:27:57 03/6/09 (0)