[Elecraft] HELP! Permeability of Ferrite Cores...

[w9cf]

If the two are the same size, the inductance will be approximately the sum of
the inductances of the separate toroids wound with the same number of turns.
So for two identical cores the inductance will be about double for the same
number of turns. You can see this by calculating the H field from Ampere's
law making the usual assumption that the windings are equivalent to a
uniform current. The magnetic field is the same as in the separate toroids.
The magnetic energies then just add so the inductances add.

73 Kevin w9cf

Dave G. wrote:
> 
> Next dumb question....
> What is the effect on inductance of stacki two toroids together??
> 
> --
> Dave G.   KK7SS
> '65 MK III Sprite in Richland, WA
> 
> If life begins at 50, why am I falling apart ?!
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