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RE: with a grooveless shiny flat surface?

"If one sets the stylus on a smooth surface of a record (at the end, in-between the run out grooves) �" the tip of the stylus has a drag on the surface that while not equal to, is "standardized" enough to allow it to be used to adjust the Anti-Skating. This is due to a calculation of "force per unit area" with consideration of the rheology of the material �" vinyl. Suffice it to say that since it has been reverse engineered and calibrated properly, this method works well. It then becomes an easy matter to set the A-S and observe the movement of the arm. For a given VTF (any amount of VTF) �" set the A-S so that the arm VERY SLOWLY drifts inwards when placed on the SURFACE (NOT IN A GROOVE) at the end of a record. "

Contained in the above paragraph is the understanding that the "tip of the stylus" has a different "drag" on a flat surface than the two contact areas of the stylus when that stylus is in the groove.

Peter further states "Frank Schroder and I are of the same opinion about antiskating �" and that makes MOST records that provide an "anti-skating track" totally in error �" many are recorded at about 80-90% modulation -OR MORE, or have increasing levels of modulation as the track progresses and expect you to set the A-S force so that there is no distortion at all at any level of modulation (or equal amounts on both channels if the cartridge tracks poorly). "

Which makes it clear that he understands that the level of modulation in the groove changes the skating force.

"the tip of the stylus has a drag on the surface that while not equal to, is "standardized" enough to allow it to be used to adjust the Anti-Skating."

Which is not the same as saying that the tip of the stylus on a flat surface creates the same amount of skating force as a stylus in a modulated groove.

Peter is not making that case.

He, in fact, is explaining that even though the drag is different ("that while not equal to, is "standardized" enough") it still a good way to set the anti skate.

I believe that is debatable.

I think you should question your own understanding (not mine) of the laws of physics.

In any event it doesn't take an understanding of physics, it just takes some common sense.


Tre'


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