On Dec 20, 2010, at 8:00 AM, David Skolnik wrote: >> First, there is quite a bit of force needed to push trichord >> dampers out of the strings - as much a 5 gm. Even when trimmed >> nicely and precisely to the bottom of the strings there is a >> significant amount, though the difference between well-trimmed and >> not trimmed is noticeable, > > Fred's observation is interesting, though inconclusive. He does > have the means, if not the time, to pursue this more thoroughly. I > hope he does. Just a couple quick comments: The big difference is between untrimmed and trimmed. And the jig pointed out to me where trimming that I thought was pretty good actually wasn't so precise: when I looked from below, I could see that there was a significant (here that means 0.5 - 1 mm) amount of felt below the strings. This can be really important for damper function and those pesky noises, especially for close-miked recording, so this becomes a diagnostic tool to check your work. Like I said in my post, it's an easy jig to make. No need for fancy stuff - gram scales, roller bearings - to make a very useful gauge. I don't think I would consider applying teflon powder to the damper wedges. I am not planning to obsess about this, just to even out and make improvement, diagnose things a little faster. Regards, Fred Sturm fssturm at unm.edu http://www.createculture.org/profile/FredSturm
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