I need someone that can tell me the correct size of the barrel conector on a futabas charger.The one that goes into your tx.I need a bunch of them.I some how managed to acquire a number of radio's with no chargers.I have acquired a bunch of the old ace chargmaster chargers.Along with a bunch of the ace digipace II units and I orderd some plugs from digikey and they are the wrong size they work on hitec and nothing else does anyone know what I should order.Thank you and let me know rramjet1954@hotmail.come:

I have Hitec which uses 5.5x2.1mm, and everything I see says that Futaba uses 5.5x2.5mm. Those are two common sizes for 12v adapters, and the only difference is the diameter of the hole in the center and the pin on the radio. It is really a pain as about half my 12v electronic items use the 5.5x2.1mm and half use 5.5x2.5. I bought a bunch of adapters off ebay to go from one size to the other.