What Digital Stylus Force Gauge Do You Like?

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As Rushton says, VTF is best set by listening, using a test LP designed for this purpose if possible. If you have a stylus force gauge, and you want to calibrate it, a nickle coin weighs exactly 5 grams.
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I learned about a nickle weighing 5 grams in a college chemistry lab, where the instructor told us that we could use a nickle as a 5 gram weight in the balance. My recollection is that it was exactly 5 grams, but that is long ago and it is possible that the mint may have made changes affecting weight.

I am a firm believer that VTA should be set by the sound of a playing LP, and the adjust-while-it-plays feature (which I also have) is invaluable.

Nsgarch...Maybe people who have gauges can measure several nickels, so we can see how much they actually vary. I don't think it will be much, and certainly not enough to significantly affect VTF measurements down around 2 grams.

Of course the vinyl compliance varies with temperature. It does flex as the stylus tracks the groove. The RCA "Dynagroove" LPs include signal processing intended to counteract the vinyl compliance.