Hi, can anyone tell me how to identify a black plug Sanwa RD6000 TX (the early one) from the later blue Z plug TX. I have been given an RD6000 with no battery so I don`t know which one it is. I know the Z plug version should have a sticker in the battery compartment but how would I determine which one I have if the sticker is not there perhaps. Got to be sure because I also know that plugging in a battery with the wrong coloured plug results in the magic smoke and a dead TX.

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