Ultra-high gain audio amplifier

Posted on Feb 13, 2013

Sometimes called the JFET µ-amp, this circuit provides a very low power, high gain amplifying function. Since µ of a JFET increases as drain current decreases, the lower drain current is, the more gain you get

Ultra-high gain audio amplifier
Click here to download the full size of the above Circuit.

Input dynamic range is sacrificed with increasing gain, however.

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