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This is the Futaba J-Series Dual Heavy Duty Extension.
This extension comes from the receiver and allows two servos to be
connected for dual aileron servo applications. On one end of the wire is a
male connector, the other end has two female connectors.
The female connectors are molded together unlike a Y-harness that splits apart.
Connectors slide snugly together to guard against vibrating loose.
Gold-plated terminals improve conductivity and prevent oxidation for
Heavier, 20-gauge wire handles higher current loads with ease.
Functions with standard or digital servos
One Futaba J-Series Dual Heavy Duty Extension
Wire Gauge: 20
Wire Length: 6" (152mm)
Wire Color Codes-
White: signal (polarity tab is on the signal side)