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It is my understanding that a radial tracking arm will
be tangent to the grooves at two points on the disc
surface, and that this is true of both straight and curved
arms.  Or have we overcome the laws of physics?

Doug Pomeroy
POMEROY AUDIO
Audio Restoration & Mastering Services
Transfers of metal parts, lacquers,
shellac and vinyl discs & tapes.
193 Baltic St
Brooklyn, NY 11201-6173
(718) 855-2650
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