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<blockquote data-quote="Canuck714" data-source="post: 1485067" data-attributes="member: 6707"><p>Simple drone fix... Hemholtz Resinator (J-Pipe) </p><p>There is a formula to calculate the exact frequency you are trying to cancel, but this simple capped of j-pipe does the trick. I was aiming for 1900 rpm quiet zone and got it. I would have to go measure mine to know where I ended up, but I think it was 27.5 inches long x 2.5 inch dia. </p><p>To give it some stability, I tacked the closed end onto the hanger.</p><p></p><p>[ATTACH=full]144436[/ATTACH]</p></blockquote><p></p>
[QUOTE="Canuck714, post: 1485067, member: 6707"] Simple drone fix... Hemholtz Resinator (J-Pipe) There is a formula to calculate the exact frequency you are trying to cancel, but this simple capped of j-pipe does the trick. I was aiming for 1900 rpm quiet zone and got it. I would have to go measure mine to know where I ended up, but I think it was 27.5 inches long x 2.5 inch dia. To give it some stability, I tacked the closed end onto the hanger. [ATTACH=full]144436[/ATTACH] [/QUOTE]
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