[Amps] Hipersil, the myth and the truth. (Updated)

[Joe Subich, K4IK]

> 
> On Apr 18, 2005, at 3:13 AM, G3rzp at aol.com wrote:
> 
> 
> I vaguely remember somewhere the claim that because the C 
> cores are precision ground, the overall magnetic reluctrance 
> is less.
> 

I'm only speculating but is it possible that the difference 
is the orientation of the core?  Since the C-core is wound, 
the laminations are radial vs. a perpendicular orientation 
in the EI-core.  

It has been 30 years since I have any electromagnetics (and 
I haven't used it since <G>) but I believe the C-core's 
laminations are aligned parallel to the magnetic flux vs. 
perpendicular with an EI-core.  It would seem that change 
would result in a lower magnetic reluctance as the flux is 
able to "flow" with (in) the laminations rather across them.  

73, 

   ... Joe, K4IK