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B&S F Du-Bro conversion?

Posted: Sat Oct 19, 2013 11:21 am
by TheHatTuba
Hello all,

For those who have converted the old style links on a B&S F tubas to Du-Bro parts, did you drill through the hole in the 5th valve linkage and tap it, or tap it and shorten the length of the threading on the Du-Bro?