@sampsa55 , Thanks for enriching my tonearm collection with
FR-64 fx. I own both 64 S kinds in the sense of silver and copper
wire. I also own Ikeda 345 . Alas not FR64 fx. But I need to start with
my Sumiko 800 (''the arm''). The arm is designed by physicist David
Fletcher and (hand) made by his master machinist Demian Davidson
from 160 parts. The curious things are: The arm looks like a Breuer
twin but while Breuer refused to make any additional counterweight
for his customers Fletcher designed 6 different counterweights for
his Sumiko. The reason being to provide the right weight for the
carts from 6- till 25 g. This way each individual cart could be adjusted
such that the counterweight would be as near as possible to the
pivot. This seems to be relevant for both: arm mass as well for
the inertia. Lew is very fond about Newton while ''mechanics'' is the
best established physical science. As lawyer I need to pretend
to know everything otherwise nobody would be willing to hire me.
In this forum and ''among friends'' I don't need to pretend. So I
hope ''our Lew'' will explain ''the mechanics''. This would be more
in accordance with his eloquence then his modest contribution
about silver oxide versus copper kind (grin).
