Ibanez Tri-sound switch

Some Ibanez instruments are equipped with small 3-position switches, which determine the circuit for each element. Every humbucker can be connected in parallel or in series. It is also possible to use only 1 single coil, so that it becomes a "single-coil".

A - Humbucker coils in series.
B - Single coil.
C - Humbucker coils in parallel.

The 2 black switches at the bottom left are the Tri-sound switches. The photo above is of a 1979 Ibanez MC-300.