loopsnut

I have inherited several AT servos with gray, red and black leads. Am I correct that the gray is signal, black is neg and red pos.?

I want to mate these with a Futaba receiver.

TIA,

loopsnut

JohnBuckner

My Feedback: (1)

If the red + led goes to the the #3 three pin and the plug has three splines on it then you will need to reverse the positive and negative leads and its best to use a new Futaba plug to do this. This would indicate its an old style Airtronics plug and if you plug it into the Rx without reversing it will damage the Rx.

Old style Airtonics plugs used #3 pin positve and all the majors (JR, Hitec, Futaba and airtronics) now use centerpin positive.

loopsnut

Thanks John....I must have old style. I will swap + and - and use the Futaba plugs.