germaniohm
New Member
My problem is this. I have four 12v transformers working and they cause bad humming on an unrelated electronic device that I am using. The four transformers are 24 inches from the device that I am using. But the interesting thing about my problem is that if I remove two transformers, that is to say, if I pull two of them from the single surge protector/power tap that I have all four plugged into, the humming stops completely. If I add a third, the humming returns. If I plug a third transformer into a receptacle across the room, the humming returns. Can anyone please tell me WHY there is this two transfomer limit? I really need to have all four transformers working and my electronic device as well. Thank you.