Hi guys i am currently repairing an 80 w amplifier and everything is okay but the transformer has no resistance on primary and secundary site.I even hook it up to mains to check if it's working and its not.I tried to open it to calculete the output voltage but it's realy hard beacose it's covered with some epoxy or resin.Never mind,on the transformer it has some numbers and letters and can that show how much voltage is outputing on the secondary or any help about that how can i find that