Dual Station Gear Throttle Linkage Unit
Dual station, twin helm unit.
This system of twin engine control lever installations is among the most simple in the world and remains very positive. Where a master control and sub-station (secondary control) is used, both gear cables are fed into the same area at the engine end and linked into this dual station box, the second cable (these existing cables are generally referred to as C33 or C8 cables) then becomes a slave on top of this dual station box. Only having one of the cables going through the dual station box, while the other clamps on top. Keep in mind these cables are all measured tip to tip of the inner.
Many people use another of these units to link the two throttle cables, or the lighter duty 19121C Click Here for more info.