Was there another board or component that was placed or secured to the top of this board?
Was something else pressing against and or touching those brass or gold contacts?
According to the board markings, those appear to be some sort of small transformer with an inductor attached. It looks like those contacts might be a leg for a higher voltage.
To me, from the photo, they appear to be gold plated/sputtered contacts.
If gold is shaded, it will still appear gold. If brass is shaded, it will go dark. Not always 100% accurate method of course. Once you get the hang of it, you’ll be right more often than wrong if you’re honest with yourself.
In your photo, some of those are shaded and still appear gold.
If those are contacts, designed for repetitive on/off contact and consistent continuity, my bet is on gold sputtering of some sort.
I know my response may be vague, but from a photo and no p/n to look up, hard to tell.
RFIII
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