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98.23.28.26
In Reply to: RE: Your experience? Have you measured the FR of any of the mm's I listed? posted by Rick W on October 22, 2014 at 14:42:16
Yes, I've calculated it for a number of moving magnet cartridges. All the ones I calculated had electrical resonance frequencies between 15-kHz and 20-kHz. You can do it yourself. Here's the formula.
Follow Ups:
Which ones? Apparently none of the mm's I listed, all of which have claimed FR of 25kHz and above ('cept one that goes to 24kHz).
It's real easy, Rick. If you have the values for coil inductance you can estimate wiring and phono stage capacitance at 250-pF. Just plug the numbers into the formula. You must have a calculator. If not, use a spreadsheet. It's easy.
Good luck,
John Elison
I look forward to your FR graphs for the carts I listed. No doubt you'll have 'em ready before your next blanket statement about mm's :-)
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