I would think that any of the current koetsu dealers particualy the online dealers such as, acoustic sounds, the needle doctor, or music direct would probably have some idea what's going on.
In lieu of that, if you need a cartrige rebuilt or repaired Melvin Ang, who is their southeast asia distributor, would probably see that your needs are met. He is a true gentlemen and very reliable. His email is available thru his website. Seach koetsu/sotheast asia.
In lieu of that, if you need a cartrige rebuilt or repaired Melvin Ang, who is their southeast asia distributor, would probably see that your needs are met. He is a true gentlemen and very reliable. His email is available thru his website. Seach koetsu/sotheast asia.