On Thu, 11 Aug 2011 19:27:17 +0000 (UTC), David Lesher
wrote:

Jon Anderson writes:

On 8/10/2011 6:06 PM, Michael A. Terrell wrote:

Sigh. That 'Toroid' is wound from steel tape. You can't make a
decent 50 or 60 Hz transformer without it.

sheepish grin Well, I've never cut one apart, so didn't know. Can't
SEE any steel... G


Some are ferrite iron power imbedded in the donut, but trust me,
it's got something magnetic....
Ferrite's no good for 60hz and any kind of power.