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Re: Which proves that the stylus does not melt the vinyl

Posted by Helge Gundersen (A) on April 16, 2007 at 13:00:33

In Reply to: Re: Which proves that the stylus does not melt the vinyl posted by John Elison on April 16, 2007 at 09:26:16:

> Skating force is proportional to friction and also proportional to distance
> between the friction point (stylus) and center of the rotating disk.

Skating force is proportional to friction, but it is not proportional to the distance between the stylus and the center of the disk. On the other hand, skating force changes slightly as the tonearm traverses the record as a result of

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However, there are several experiments showing that skating force also increases across the whole disc, not because of velocity as such, but because of the more packed modulations compensating for the decreased groove speed. They can apparently increase friction for some reason, at least they did in those tests. I would think that more research is warranted, with a variety of modern styli and with various tracking forces.

Not an argument for using more anti-skating force with 45 rpm records, though.

If it's a single, it could be made of inferior vinyl with greater friction and thus greater skating force.

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