Was thinking about some rotary switches for caps in EQ circuits, like the Pultec lows, and am thinking of a type I have in multiple vintage pieces that has a continuous strip as pole piece, so that multiple positions can be paralleled or de-paralleled with rotation. So you can then select the # of parallel caps, rather than use a discrete full value cap at every position. Some versions of these have continuous strips, some have contact points that can be jumpered to allow multiple contact. I am brain dead after a long studio tracking day, and can't come up with a descriptive, or find a modern source (for lack of a descriptive). Anyone know? Here's a pic of one which allows paralleling of one to six contacts through a single pole.