hi im a new member and having trouble with my galaxy 600 tube amp or maybe im not I cant get but 175 dead key and 250 pep out of it with a 3 wat deadkey now im using a galaxy 99v for transmitter 3 watdead key and it will swing 25 watt I put new tubes in it they are 30kd6 3 of them is that all I should get is 250 out of it on hi low key up 50 swings 200 now is the name 600 the wattage or what