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JR / Futaba plug compatibility question

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Old 02-05-2005, 10:17 PM
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Ernie Misner
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Default JR / Futaba plug compatibility question

I have two hitec servos with JR plugs on them. Can I plug them into my Futaba receiver if care is taken to maintain the polarity. (there is no groove on the side of the JR plugs, so they can be turned over the wrong way...)

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Ernie Misner
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Old 02-05-2005, 10:23 PM
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Josey Wales
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Default RE: JR / Futaba plug compatibility question

Im using JR 8611's with a Futaba 9ch PCM without any problems
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Old 02-05-2005, 10:50 PM
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Ernie Misner
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Default RE: JR / Futaba plug compatibility question

Thanks Redrum. Are you taking extra care as not to plug them in backwards?

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Old 02-05-2005, 10:57 PM
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Default RE: JR / Futaba plug compatibility question

Yes...they will only work one way..
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Old 02-05-2005, 11:49 PM
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Default RE: JR / Futaba plug compatibility question

The Hitec S, JR and Airtronics Z servo plug will work fine in a Rx for Futaba F. Having said that, They have and can be plugged in backwards (it happens all the time) However this only results in an open power circuit and will not damage Rx or servo. It just will not work, reverse and you are good to go.

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Old 02-06-2005, 01:12 AM
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Ernie Misner
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Default RE: JR / Futaba plug compatibility question

Thanks loads for the info. It's good to know that even if you do get it backwards, it will not fry anything. I did notice that when plugging the JR plug into the Futaba extention cord coming from the rx, that without the groove on the side of the JR plug, it has feedom to wiggle sideways a little in the Futaba plug. The groove on mating Futaba plugs makes for a more snug fit. Hopefully that's not a real concern?

Thanks,

Ernie
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Old 02-06-2005, 10:26 AM
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bentgear
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Default RE: JR / Futaba plug compatibility question

Ernie, as a rule of thumb, what I use is the dark colors are ground (black or brown) the center is positive (red) and the light colors are signal (white or yellow). If you have one of the receivers same brand servo then if you plug it in you can use it as a guide using the above color code.

Ed M.

The older Airtronincs were the ones that would throw you for a loop. They had the positive on the outside.
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Old 02-08-2005, 03:19 AM
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Ernie Misner
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Default RE: JR / Futaba plug compatibility question

Thanks Ed. I'll make sure the dark and light colors mate properly. At least the pin spacing and size is compatible...:-) It's not a total bust at all coming home with the wrong connectors. I'm happy as can be.

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