On Thu, 12 Apr 2007 19:33:09 GMT, SparkyGuy
wrote:

It goes right on the outside of the lams, and around the windings, in
the same direction as the windings, like this:

http://www.germes-
online.com/direct/dbimage/50068769/Power_Supply_Transformer.
jpg

Not necessary to ground it?

Not if your problem is magnetic field leakage.


Is wider (as wide as the windings) best? Dimension confusion...


Think of it as a single, shorted secondary turn but *outside* the
laminations. Any field that leaks out of the transformer induces a
current into the strap, and it in turn generates a field that fights
the excitation. It should be thick, wide, and well-shorted, which
means well soldered. Copper is best.

John