about the lamations on the transfomer if that is welded my best is to replace it other wise if that is bolted then you can tighten it down some more but do not go over the torque value and i have bad transformer before i just end up replace it with diffrent model and slove the probem and what size the transformer is ??? i know few transformer will humm at cereten level i am not sure excat number is but it is listed in transformer catalog book i will get the list soon in my office tmw it should be not really loud at all but what other load you have on it it can make a diffrence with it

merci marc

Pas de problme,il marche n'est-ce pas?"(No problem, it works doesn't it?)