Richard Clark wrote:

(snip)

If you simply want to know why he uttered

John, yes you would. But you would not have the choke.


The ferrite is wholly transparent to the differential currents (the
balanced and thus equally opposing line currents). Its presence or
absences is immaterial. This is the abstraction of Reggie's bafflegab
for instead simply saying you don't need a choke (the lines' balance
proves that).

Now, if that condition of balance were to ever go away (like we leave
that comfortable illusion and return to reality), then the absence of
the ferrite has also rendered your "choke" chokeless (by the degree of
its contribution because in spite of Reggie's claim, the turns of your
coil remains a choke, if only an inadequate one).

73's
Richard Clark, KB7QHC


Hi, Richard -

Although your language is a bit formal for me (I lack a formal education), I
think I understand what your are saying. I am aware that the fields caused
by the differential currents cancel (mostly). It makes sense that a magnetic
core is not necessary when the fields cancel. And, I can see where the core
is useful when the fields do not cancel. I just did not interpret Reg's
information as applying to one situation and not the other.

Thank you and 73.

John