I managed to solve the drive transistors now I have the amplifier in protection since the tl494 is not oscillating these are the voltages in the tl494 what I do not know is that it may be causing the protection since the pin16 reaches an npn transistor which I pick it up and the protection goes away.
Thanks Perry I still do not have the tutorial and precisely that is the transistor that I mention in post 2 when I lift it I have a nice square wave I understand then that by placing all the mosfet of the source the amplifier must turn on correctly or I am wrong
Thanks Perry I was looking for a problem where there was not the amplifier turned on correctly however I see that a zener is needed in location ZD301 is the same as those with F9 marked?