I want to install the parts for the power supply and I came to the transformer. I started cleaning it with alcohol...removed the (unreadable) sticker and found the whole transformer bein coated in something I thought it is dirt. Please see picture.
Before I remove this coating: is there a reason that it is covered with that ort is it simply dirt??
Please help
I will not open the screws of the transformer and its housing, I wanted to sand it down and give it a new layer of black paint. Is there I reason I should not do it and leave it just like it is??