> "Norm Fletcher" <fletchmo47@...> wrote:
> ...
> Here's the bottom line: if the control
> coils create flux which travels outside the core, the device becomes a
> transformer. In fact, that's why the Metglas core was used in the
> first place! It is so permeable to flux that the inventors hoped that
> the control coils flux would stay inside the core. Anthony Craddock
> (Bearden's website guy and an engineer) told me that successful MEG
> configurations were very carefully wound... If some of us come up with
> a core which has control areas-that leak no flux into the space around
> the core, we won't even need Metglas any longer.

It seems to me that the control winding that would most closely achieve this
is a single layer as close to the core as possible. On the other hand, I am
not convinced that this has anything to do with it. In support om my doubt, I
mention 2 things. First the Metglas is only efficient (low hysteresis loss)
at low (power line) frequencies, yet the MEG is traditionally operated at a
much higher frequency. jnaudin posted his best results when he was using a TV
fly back core and not a thin (approaching single layer) control winding. He
claims that his conditioned resistor or other suitable non linear load is
essential. I am led to wonder if there are 2 different things going on here.


--
_______________________________________________

Search for businesses by name, location, or phone number. -Lycos Yellow Pages

http://r.lycos.com/r/yp_emailfooter/http://yellowpages.lycos.com/default.asp?SRC\
=lycos10