Totally Twisted Litz wire make your own

[G0CWA]

Before duct tape, all that was needed to fix something was bailing wire and chewing gum!

Glen, K9STH

Hi Glen you were quite advanced then

We had to use sealing wax and string in the UK !!!!

73 de Nick G0CWA

[KO6WB]

Hi Glen you were quite advanced then

We had to use sealing wax and string in the UK !!!!

73 de Nick G0CWA

Wasn't that the way the airplanes around the turn of the last century were repaired?
It just sounds so familiar.
73
Gary

[KA5S]

Hi Pete
Commercial litz is made both ways and I am yet to find any proof of which is best, it seems to be personal preference. How ever there are a few manufacturers that don't use either method and just have one single "bundle of wires" this type is definitely inferior to both twisted and woven.
In both twisted and woven for example 66 litz is made of three twisted (or woven) bundles of 22 strands twisted (or woven) together wheras the so-called cheaper litz is one bundle of 66.
I have not found any major difference between the two constructional methods of "True Litz" in performance personally
73 for now Nick G0CWA

On a recent contract, the customer's customer insisted on high current chokes wound with Litz wire they had built, which turned out to be simply a number of #16 magnet wire conductors spiral laid. Except... that's is NOT "Litz" wire and suffers from the same problem any spiral laid, multistrand cable would; each wire in the bundle is 100 percent on the surface, so the current divides among them and is forced by cable and conductor magnetic fields to the outer surface of the cylinder and the outermost surface of each conductor. With true Litz wire, each strand dives into and throughout the cable volume so the magnetic field can't push current onto the surface of the cable overall.


Cortland
KA5S

[G0CWA]

Except... that's is NOT "Litz" wire Cortland KA5S

I totally agree the whole idea of litz is each conducting element varies its position in the bundle from centre to outside and back again.
The "skin effect" takes care of everything else.

A simple bundle is not litz the only major advantage of a simple bundle is purely mechanical in that it is more flexible.

Unfortunately some unscrupulous manufacturers claim otherwise selling this simple bundled wire as Litz.

73 de Nick G0CWA