Well Tempered Simplex arm and wiring

Mr_m, can you verify the cup dimensions again? Cup height is 3-3/8? Cup depth is 1-1/2"... is the cup very thick at the bottom to add mass? How deep is the Amadeus plinth?

 Thanks for the info on the connector, ac adapter and squash balls. Have you had to rotate them yourself or do they hold shape for a very long time?

btw: I have an Audio-Technica 440MLb on my Simplex arm clone and they mate very well.

So, the visible part of the cup above the plinth top is 1.5" and that the bottom part of the cup is rounded - a half sphere - and the cup looks is a test-tube shape.

Hi gvoth, The cup diameter is 2-1/16 across. Cup height is 3-3/8" Top of cup to inside deepest (concave) id 1-1/2 inches deep. inside of cup is like a test tube, bottom outside of cup is flat bottom. This makes cup thick on bottom side. Visible part of cup above plinth can vary. it is adjustable in the plinth via a set screw to secure in the hole in the plinth. It is designed this way so as to vary the depth of the silicone level for the golf ball to adjust the amount of damping of the arm. I've never rotated the squash balls as they seem to hold their shape quite well, although an occasional rotation wouldn't hurt.

mr_m, thanks for this detailed description - I thought of keeping the cylinder bottom of the cup unit solid as well to add mass. Can you tell me the length of you suspension arm? I understand that the arm is 3.8" from plinth to top of arm (for the Simplex). In my clones of that arm, I've made the suspension post 3-7/8" long. Time to get things are accurate. I'm making the pillar from both Denril and aluminum.

Correction, I’m making both Denril and aluminum versions of the pillar.