FET_MICROPHONE_MIXER

Published:2009/6/23 2:59:00 Author:May | From:SeekIC

A JFET transistor is used as a high-to-low impedance converter and signal mixen Input impedance is approximately 500 kΩ but it can be increased by increasing R5 to R8 as high as 10 MΩ. Output Z is about 2 kΩ, but it can be increased or decreased by changing the value of R10 Use 560 or 680 Ω to feed a 600-Ω input; use 100 kΩ to 1 MΩ for high irnpedance.



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