Testing filter boards would be very easy if we had a nice widget that had simple controller and an 12c socket ribbon cable plugged into to turn filter banks on and off.
Would make tweaking toroids easier for me if rig was not needed. I use SA or signal generator.
Maybe build on bread board ??
Build a few and loan them out as needed.
Just a thought, unfortunately I am not much on designing nor programming.
Tim W4YN?