I'm making an active Low/High Pass filter based on the equal component sallen key design I found in the Active Filter Cookbook.
In the book I read that by exchanging the position of the Frequency determining Resistors and Capacitors it is possible to switch between a high pass and a low pass response, using a 4PDT switch.
I'm very confused about how to connect the switch to the components/board, I've been drawing out the connections for a good few hours! It's simple enough I'm sure, but I can't seem to get something which makes sense, or would work!
My 4PDT is connected like this:
Could someone please help me with a sketch of the connections or any tips on how to hook up the switch? :) Thank you very much,