Late to the party on this thread also but I agree. I think they're Futaba servos rebadged. They have the standard blacked/white/red Futaba cabling but two have the red/black connections swapped at the servo end and two have the red/black swapped at the plug end. Futaba j type plugs will fit the receiver if you trim the thin orientation blade off the edge of the plug (or simple use Hitec ones) and obviously swap the wiring accordingly. I'm putting new Futaba plug/socket leads on it all as a few leads are suffering from black wire rot but again being mindful of the polarity.
