ASTEC AA11040B PSU - Strange corrosion on L6

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ASTEC AA11040B PSU - Strange corrosion on L6

Hi All, 

I've noticed strange corrosion on top of the L6 on my ASTEC PSU, is this something to worry about ? 

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No, this is a part of the laquer coating

No, this is a part of the laquer coating often seen on inductors.  I wouldn't worry about it.  You see a lot of that on old transformers as well.

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