frischmoutt wrote:
No, this is the movement of the EMI suppressor inductor sheets sumitted to
the electromagnetic field generated by the 50 or 60 Hz and the triac
switching harmonics.

Nothing to do easily.
The inductor needs to be impregnated with Rustol under vacuum to ease the
penetratration deep beetween the sheets.



The inductors in dimmers I've seen are only one layer, a quick dip in a
can of varnish should be all it takes.