How to create PID analog circuit using selector switch?

[sigurd.haruto]

I want to make a circuit of analog PID with settings of P, I and D using the selector switch that set the stage resistor from the strengthening of 1 to 10, .. how the circuit?

 

[keith1200rs]

Soemthing like this:



or

george.ph.utexas.edu/~meyrath/informal/PID.pdf

Keith.