toroid winding house

[Michael]

Hi everybody
I am looking tor somebody to advise me on power toroid winding (how
many turn may realistically be squeezed in the core). E.g.: core
dimensions are ID=16.3mm, height-11.1mm; I need to wind x turns, What
is the thickest wire I can use?
Small volume coil winding house reference would be appreciated.
Thanks
Michael

[Archimedes' Lever]

On Tue, 5 Jan 2010 06:22:59 -0800 (PST), Michael <mk5...@yahoo.com>
wrote:

Depends on whether you are attempting to get to a specific inductance
or if you are just trying to stuff it full of high current capacity wire.

http://www.hamradioindia.com/kitbuild/Toroid.htm

You also need way more nomenclature about your core.

Wall thickness center hole diameter outer diameter, height laid flat.

What you are trying to do with it (mH desired, etc...)

Lootsa links on google, under "winding toroids" search, most have
electrical characteristics in a table (or three), I am sure there will be
one that has maximum 'stuffage' numbers

[Robert Baer]

...and don't forget the option of using wire with a square cross-section.

[Michael]

%%%...whether you are attempting to get to a specific inductance...
I have working prototype(s) where I have to much losses in Cu (the
coils were wound with 2x20AWG - handy, easy to deal with.
I estimated that I can fit 30 turns of 12AWG in Ferroxcube TX42/26/18.
I managed to fit only 29 turns - 12AWG is not very easy to deal with
(or I have to work on my arms more ;o) ) . That is why I wanted to
talk to people who do it professionally.

Square wire? Yes , I have heard of it. This http://www.tightpaktoroid.com/
looks even more interesting.
I need to talk to professional about former. Square wire must be
trickier to wound.
Latter is not set up for our volumes (1k/year tops). Oooops!