Yes thats true but I was using the picture to argue that the spring would result in zero moment as opposed to the static which uses the CW to hold the needle down, but as I said dont know if this is important.
Dear Axel, I was only refering to the pictures to illustrate a point which is floating around in this thread since a long time. Something which is here - put on teh web by a source which is VERY different from me - shown for all to see that some less than bright remarks about the construction of the tonearm-designs I. Ikeda made in the late 1970ies are plain wrong and without any support by reality. Cheers, D.
Hi Axel, Pär, - well Pär is on the right track. The counterweight do act in both modes to balance the tonearm. In the static mode it additionally determines the VTF. BUT - and this is the one big point - when the counterweight determines the VTF the tonearm itself is no longer balanced...... Pär's idea with the high school force vectors is leading the way. The rest is to be added by and when our friend and final authority has finished his breakfast. Cheers, D.
OK, quickly before breakfast is over. >>> - when the counterweight determines the VTF the tonearm itself is no longer balanced......<<< Neither is it once VTF with a spring is applied. Just that one un-balancing force in 'gravitational' and the other 'non-gravitational'.
Now take ~ 1g VTF (in the case of a Shure V15 cart, Empire, etc.) and we start splitting a fleas ...hair. A. OK, let's see what gives after breakfast :-)
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