I've got some newbie questions about potentiometers that I can't seem to find in my reference materials.
I've been doing a lot of experimentation with potentiometers, and frequently run across linear vs. logarithmic pots. From the data sheets, I can see the graphs and understand how the output is affected by messing with the pot. My experiments have been limited to messing with what's on the parts list and swapping out linear and logarithmic pots to see what happens. I don't see it. Perhaps the difference is too subtle at the voltages or applications (changing the brightness of a blinking led or the volume of a click to a speaker) I'm working with, but it doesn't help me understand which to use.
What are some sample applications for which one would use linear vs. logarithmic, logarithmic vs. linear, and why?
Also, I sometimes see an "audio" potentiometer. Is this a third type? or is that a synonym for linear? The data sheets seem to match linear pots of the same rating more oftyen than not.