Fet Microphone Mixer Circuit

Posted on Apr 20, 2012

A JFET transistor-is used as a high-to-low impedance converter and signal mixer. Input impedance is approximately 50.0 kQ but it can be increased by increasing R5 to R8 as high as 10 . Output is about 2 kQ, but it can be increased or decreased by changing the value of i10.

Fet Microphone Mixer Circuit
Click here to download the full size of the above Circuit.

Use 560 or 680 to feed a 600- input; use 100 k to 1 for high impedance.

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