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Re: i believe...

67.100.208.82

As far as I know, the stylus arc hits a zero skating point somewhere in the middle.

I am not a mathematician, but the skating force is the resultant of the groove drag (one vector, tangential to the grooves) and the deviation from the true tangential point (IOW tracking error) as the other vector. The resultant of those two vectors is the skating vector, which is perpendicular (or centripetal) to the grooves.

However, that easy calculation assumes that you have either unmodulated grooves, or grooves that have a modulation in such a way that the stylus drag is constant (again, that would take some thinking for me, how a signal would need to evolve over a record to cause constant drag.)

You are aware that the skating force will increase on louder passages, and decrease on silent passages.

What was your original question again? : )

C.

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