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Original Message
It's a different arm with a different effective length!!! That's not a 750D is it?
Posted by VynylTap on January 19, 2010 at 14:16:36:
And even if it was a 750D it would STILL PROVE MY POINT - the technical drawing prescribes that the the stylus should fall just in front of the headshell slots with the stylus positioned at 229mm from the pivot point (hence giving an effective length of 229mm).
Look, this is so very simple - according to the technical drawings from Jelco and their spec's - if you take a length of thread and stretch it from the pivot point of the arm to the point identified on the drawing just in front of the slots - it should measure PRECISELY 229mm.
I'll help you out since you're having trouble following along - look at the drawing I've attached - see the big line with the arrow on it with the big R229 above it??? You with me so far??? Now go get your hands on a ACTUAL 750D arm and measure that distance - and you'll quickly find that it's NOT 229MM - not even close, it's more like 233mm+.
Go back to my original post - I linked it to help - the stylus on the 20XL is at 232mm from the pivot point - giving AN EFFECTIVE LENGTH OF 232mm. The stylus is BEHIND the prescribed 229mm point.
I'm beginning to think you're just messing with me at this point, getting your jollies watching me repeat the same thing over and over again when a ten year old would understand what I'm saying is true. NOBODY can be this dense.