I have a galaxy 1000 and it has the 8975 tubes in it I want to replace them with the el 509 I need the pinout for the 8975 that are in it like on the el 509`s pin 1/8 go together 2/7,3/6 and 4/5 are the heater I just don`t know what pins are what on the 8975`s a little help please thanks BigRed back out