Re: atm Re: use of wood for a telescope tube

K8DO@aol.com
Fri, 4 Aug 1995 16:07:57 -0400

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RE Bratislav's comments on a wood tube F4 instrument not holding collimation with humidity/temperature changes... This is exactly why a concert, grand piano has to be retuned a few hours before a concert.... Wood moves... Denny

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