10-23-12: Larryi
I don't see any pictures depicting a tangential tracking arm. I only see pictures of their hanging on a thread/magnetic attraction version of a conventional pivoting arm.
What, if any, mechanism provides for tangential tracking?
Larryi, The new Schroeder arm is not a standart tangential tracking arm. It is a pivoted arm track like a linear-tracker. "The Schroeder arm has an ingenious mechanism whereby the pivot point of the arm mounted on a cam is pulled out in an arc by the stylus to achieve tangency." You can find good pictures here:
http://www.stereomojo.com/Show%20Reports/RockyMountainAudioFest2011Showreportp3.htm