Fet Audio Switch
Then the gate voltage that you put on your MOSFETs must switch to 6 and -6v. When the VGS is zero the FET.
The use of a P-channel J-FET.
Fet audio switch. 1 J-FET 2 CMOS switch. Two or more signals can be switched and or mixed without annoying clicks by using this fet audio mixer and switch. The reason for this is when your switch is ON you do not want the reverse body diode of the MOSFET to be conducting any current.
And for that to happen you need to have your MOSFET. FET Audio Mixing and Switching Circuit Diagram. FET as a Switch JFET From the above discussion it is clear that the FET can be used as a switch by operating it in two regions they are cutoff and saturation region.
Lets say that your audio signal can vary from 2 to -2 volts and Vgsth Max of your MOSFET is 4 volts. There are two types of audio switches that will be shown. A simple J-FET switch is easy to accomplish.
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