Wql
Member level 1
Anyway, in the correct circuit, you would connect the output of the Modulator to one end of the variable potentiometer and ground to the other end. Then take the variable connection and use that as the output signal. You probably don't need to follow that with an OpAmp but if you did, it would have zero gain (output connected to non-inverting input) and you would only use the OpAmp if you needed to provide a low impedance source to the next stage of your project.
So what u mean is that for my circuit design, I should just exclude the op amp and connect a variable resistor alone to the output of of my modulator with the other end of the variable resistor as my output signal?