I recently picked up a Fender 84-87 E series Precision bass. Plays nice and sounds great. I looked it over and wondered if the pots are original on it. The only marking on it is "M250k(ohm)A" and under that "75 K".
There are no other markings on it. What pots did they use on these basses? Couldn't find much online about the Japanese stuff.
Oh and do these lose much value if pots are unoriginal?