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5687 is not "lower mu"; it has higher Gm and lower rp vs 12AU7

Since mu is the product of Gm*rp, the mu of a 5687 ends up being about the same as that of a 12AU7, but the 5687 will probably make a better CF than does a 12AU7.


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  • 5687 is not "lower mu"; it has higher Gm and lower rp vs 12AU7 - Lew 10:31:18 06/09/06 (0)


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