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Author Topic: Edwards/Getzen leadpipe info  (Read 135 times)
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LeoInFL
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« on: Jun 27, 2017, 02:50PM »

I was just browsing through past forum topics and came across this post from Christan Griego regarding the Edwards/Getzen large bore tenor leadpipes: "The T1 was a Bach standard leadpipe copy, the T2 a Bach open copy, and the T3 was a Conn 88 copy."

I had been under the impression that it was just: 'least open'/T1 to the 'most open'/T3.  Would that still be a fair statement?

Here's a link to the 2009 discussion: http://tromboneforum.org/index.php/topic,45779.msg664141.html#msg664141
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Leo
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john jenkins

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« Reply #1 on: Jun 27, 2017, 05:14PM »

I believe both are correct.

This ("'least open'/T1 to the 'most open'/T3") is true for Edwards/Shires pipes and most companies using the 1-2-3 numbering system.

And it has been my understanding that the Bach design uses a narrower leadpipe to balance the very open model 50 bass crook it uses on the model 42. So, a Bach open copy would be slightly more open at the venturi, while a Conn 88H leadpipe is furthermore open to balance the narrow slide and consistent diameter slide crook at .547".

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