On Wed, 19 May 2004 02:59:02 GMT, Gary Schafer
wrote:

On Tue, 18 May 2004 22:58:15 GMT, Richard Clark
wrote:

On Tue, 18 May 2004 14:42:34 -0400, Mike Coslo wrote:

Richard Clark wrote:
On Tue, 18 May 2004 13:09:48 -0400, Mike Coslo wrote:

Is it possible to super glue the thing back together? It's a clean break.

Yes, split cores work quite well too.

Ahh, Thanks Richard. I guess it's the ham in me, but I hate to waste
anything!


- Mike KB3EIA -

Hi Mike,

The trick is to keep any gaps small. However, if I recall my
magnetics right, an air gap, although lowering the magnetic properties
(smaller inductance), also extends them (greater dynamic range, harder
to saturate). This is the principle behind a "swinging choke." This,
however, is not to say that it would offer any benefit to your
application. The reason I say this is because ferrites we use for
line chokes do not typically support enough flux to saturate in the
first place (or if they do, you have one hell of a problem); rather,
the ferrite characteristic of bulk resistance is employed and
inductance is a fairly trivial side benefit.

73's
Richard Clark, KB7QHC


Hi Richard,

Isn't it the other way around? If I recall a swinging choke does not
have a gap, which allows it to saturate sooner, changing the
inductance. A regular choke does have a gap. Speaking of stacked iron
plate type.


73
Gary K4FMX

Hi Gary,

You are right, the description of effects is OK, but the naming is
backwards.

73's
Richard Clark, KB7QHC