> The laminations on a microwave oven transformer are welded together becau=
se of the
> RF in that application.

Really? I always thought it was done so the laminations wouldn't buzz at 50=
/60Hz.


> You won't need that. However, in normal transformer
> applications the E's and I's are interleaved. If you grind out the weld y=
ou will
> lose a portion of the magnetic structure.

But would it be enough to really effect the effective core cross section?=20



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