I have just noticed the barrels on some boards that we now get silver plated instead of tin plated so as to be lead free.

I can clearly see the laminate strands through this hole and many others on the boards.

What difference is this from an ordinary tin plated hole?
looking at older boards, I can see nice shiny & flat holes & no ridges.

Is there something wrong with the holes that have been silver plated or would they look like this anyway?

What impact does this have on the current carrying ability of a plated hole?

I have managed to get a picture taken of one hole to indicate what I'm on about.

http://www.ukxboxgamers.co.uk/BARRELL.jpg

Thankyou,
Matthew Lamkin.

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