Guitar volume/tone pots

Question

Looking at this wiring diagram I see there are two 500k-w pots and one 500k-d pot. My question is what is the difference between the two pots (500k-w and 500k-d) and what should I ask for when I go to an electronic shop. Does the -w/-d make a difference of 500k pot is enough ?

Thanks

Answer 1

-w probably refers to audio taper pots and -d to linear taper.

Audio taper pots are usually used for volume so that the change in volume over the travel of the pot is equal.

Read here for a more expansive explanation.