Here is all the math:
https://www.ortofon.com/support/support-hifi/resonance-frequency
But with the TEST LP you will have both (printed method on the sleeve to calculate manually and the "real" method to see the resonance by your own eyes by playin test record).
https://www.ortofon.com/support/support-hifi/resonance-frequency
But with the TEST LP you will have both (printed method on the sleeve to calculate manually and the "real" method to see the resonance by your own eyes by playin test record).