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RE: Raising gain on 12AU7 input tube.

You are overlooking GNFB. When open loop gain is sufficient, overall gain is controlled by the NFB resistor pair. Increasing stage gain will increase the amount of NFB, but not the net gain.


Eli D.


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  • RE: Raising gain on 12AU7 input tube. - Eli Duttman 11:41:21 09/27/16 (0)

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