Re: Litz wire verses solid wire what is the difference?

You have an excellent set of references there, all the applicable formulae
are the usual ones, but modified by reference to the impedance tables for a
specific litz wire.

Litz wire has a HIGHER resistance at low frequencies than an "equivalent"
section solid wire, but it has a much lower HF resistance than solid, since
the wires are insulated and randomly woven through the material.

I have to confess, that, apart from a couple of exotic bridge transformers
and an ultra flexible connector to a record deck pickup (don't ask) I have
never had to use Litz wire, and I haven't used it in an RF transformer,

The first ref you give seems pretty helpful.

Steve