In this picture of a microwave oven transformer, the
> secondary has been removed (it wound through the holes where
> the coin lays) and you can see the two blocks of laminations
> that almost close the flux path around the primary winding.
>formatting link
>
Whoa! Dooood! I've been cited! ;-) ;-) ;-)
Guess I'll throw myself a little party. ;-)
Cheers! Rich