The Ding test, just as with crystal....


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Posted by Bob Thompson on Monday, May 22, 2006 at 2:07AM :

In Reply to: Re: Hmmm, ring = stretched? tight = vibes damped, so dull ? posted by Kaegi on Sunday, May 21, 2006 at 8:18PM :

I don't drop the drums on the floor as this may generate cracks where there were none before I suspend them on a wire or seal hook and rap them lightly with a hammer. They should ring like a bell. A thud indicates cracking. The ding test can apply to coil and belleville springs as well. The principal is the same as when testing crystal by tapping with a thumb nail.



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