Adapter pcb to plug into most MEGA ST machines which gives a jumper selectable TOS 102 & Rainbow TOS 104.

PARTS INCLUDED
PCB & SMT cap only.

PARTS NOT INCLUDED
PLCC socket #0186
Round header pins #0132
Square header pins #0158
Jumper link #0189
DUALTOS ROM #0126, #0128, #0127, #0042, #0130, #0129.