Hi can someone tell me what wire is what, on a Airtronics servo lead? positive signal negative, Thanks Paul

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Is it a new style Z connector? It can easily be changed with an adapter or if the servos are wired for the older Airtronics, all you have to do is interchange the positive and negative leads at the connector. You should be able to (with the aid of a small pin) pull out the two wires, interchange them and plug them back in. You might have to physically sand the plastic ridges off the side of the connector to allow it to go into the Futaba connector. Second, to reverse the rotational direction of the servo, you need to reverse two different pairs of wire inside the servo. Interchange the two wires going to the outer connectors on the potentiometer (leave the center connector as is) and reverse the two leads going to the motor.