searched and found this vola its completely sealed....but has anyone worked on it yet? and its body is entirely plastic..how do we ground the pots?
Bourns 500K Audio Pot | Allparts.com
It's not, the top is metal.
As for how to work with them, no clue - I bought oen for my Warmoth project, and when Chris and I went to wire it up and saw it only had two lugs, we just decided discretion was the better part of valor and put something else in.