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Venturi "gapless" leadpipe



 
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darth
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Joined: 13 Apr 2011
Posts: 76

PostPosted: Mon Nov 19, 2012 10:44 pm    Post subject: Venturi "gapless" leadpipe Reply with quote

So I'm transitioning to a new horn which has no GAP whereas my old horn did. The notion of fine tuning using .125 as an average gap sorta gets murky now. Yet, I have nevertheless read that even though there is no gap, how far the mpc is inserted still matters !! Hence, it would appear that the thickness of the shank is still a variable in tuning, slotting, ease of upper reg playing, etc. How does one find the optimum position of the mpc into the receiver for such a setup?? Can the the paper trick still be used to experiment with to effectively make the tubing longer? But what if one wants to experiment making it shorter? I would like to lock into the best, optimum position and be done. Whatcha think?
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lipshurt
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Joined: 24 Feb 2008
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Location: vista ca

PostPosted: Mon Nov 19, 2012 11:19 pm    Post subject: Reply with quote

What horn is it? A 22b is different than a 400 true-tone
Still fo both of those the shank should be right at about .385
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darth
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Joined: 13 Apr 2011
Posts: 76

PostPosted: Tue Nov 20, 2012 5:58 am    Post subject: Reply with quote

Both the old and new are Dynasty (DEG) G Bugles (really G trumpet) but the new one is a next generation redesign with NO GAP. The receiver to leadpipe is seamless.
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oxleyk
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Joined: 12 Apr 2006
Posts: 4178

PostPosted: Tue Nov 20, 2012 7:31 am    Post subject: Reply with quote

Yes, there is actually a virtual gap in there that can be adjusted. I have a B&S Challenger with this type of leadpipe. Having your mouthpiece cut for sleeves is a good way to experiment.

Kent
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