Topic: Bocal split patch

I am researching information about patching bocals.  I just patched this Fox C 2 as a test.  I am looking for information dealing with how the patch should be shaped and sized to minimize tone quality degradation before I patch my Heckel.

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Doug Joksch
Oboe, E-Horn, Bassoon

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Re: Bocal split patch

General rule that seems maybe obvious: as little patch as you can make that still seals the hole. Marvin Krantz can make it look like there was only a scuff in the plating, and while that will restore the bocal to as close to its former glory as possible, it doesn't add any structural strength to the area of the bocal that is now permanently weakened due to the split trauma. So it's a balance game.

M.M.A., D.M.A. University of Illinois at Urbana/Champaign: B.Mus. Lawrence University
Bassoon professor at University of Wisconsin Eau-Claire
Maker of the Little-Jake electric bassoon pickup and Weasel bassoon reeds

Re: Bocal split patch

Also use as thin a patch as possible. I use very thin silver sheet.