As I mentioned, sometimes an analog protractor is required in life. A lot of potentiometers range of motion is about 270 degrees, but I'm using these fancy precision pots in the next version of my Pete Millett mic preamp. I emailed the manufacturer to find out the range of motion of these but they never got back to me, so I had to figure it out for myself, and this is how I did it. It turns out (no pun) that these spin 315 degrees. I need to know this for the panel design.
