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Vinyl Asylum Welcome Licorice Pizza (LP) lovers! Setup guides and Vinyl FAQ. |
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Vinyl Asylum Welcome Licorice Pizza (LP) lovers! Setup guides and Vinyl FAQ. |
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In Reply to: Cartridge alignment and tonearm design posted by Tre' on July 7, 2020 at 07:30:53:
It is not hard to solve the problems relating to azimuth for your choice of tonearm - set the arm height once for a reference record thickness, then shim thinner and thicker records to match the reference thickness.
Secondly, putting aside the issue of tip zenith for a moment, few cartridges have the cantilever/motor lying perfectly on the centreline of the body, so if you align for the cantilever you are always going to have the body appear slightly twisted in the headshell. Then again, for the vast majority of users relying on their eye sight and a 2 point protractor or arc protrator, a small error of cantilever skew within 0.5 degree may be nulled by the inability to set the offset accurately so the correct solution may be hit by chance.
It doesn't matter at all what modulation envelope the arm was originally intended for, any pivoted arm can be optimised for any envelope you choose. Whether the solution is realisable or not based on one's ability to achieve the alignment after all the errors are stacked is another matter.
The remaining problem to solve is the adjustment of the antiskate value relative to the manufacturer calibration of the scale.
I designed a linear offset jig with 4 options including an option suitable for 7" and 10" discs and have no difficulty in optimising all the parameters for my Technics arm.
The short version, is that you aren't restricted to the original intended alignment for a pivoted arm, nor is aligning the body to be parallel to the headshell the correct approach either.
Regards Anthony
"Beauty is Truth, Truth Beauty.." Keats
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Follow Ups
- RE: Cartridge alignment and tonearm design - flood2 15:24:38 07/07/20 (3)
- RE: Cartridge alignment and tonearm design - Tre' 17:54:59 07/07/20 (2)
- RE: Cartridge alignment and tonearm design - flood2 19:59:16 07/09/20 (1)
- RE: Cartridge alignment and tonearm design - Tre' 06:24:42 07/10/20 (0)
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