Re: Loading inductor Question
Posted by
Jim Wiley-2 on
Apr 30, 2012; 4:13pm
URL: http://elecraft.85.s1.nabble.com/Loading-inductor-Question-tp7513850p7513999.html
Ken -
A toroidal inductor should work fine, it is understood that the core
must be of the proper material and size to handle the expected power and
frequency range. Keep in mind that many of the automatic tuners use
toroidal inductors in their design. There is some advantage to having
the loading inductor "out in the air", as it dos radiate somewhat, but
the convenience and practicality of an actual design may dictate that
the inductor (s) be enclosed.
Being a conservative sort, I would tend to use bigger cores and larger
wire sizes that an absolute engineering solution might dictate, mostly
for safety factor and insurance against core saturation when handling
unusual situations.
- Jim, KL7CC
Ken Alexander wrote:
> Folks,
>
> Given that inductors on toroid cores are used extensively in autotuners, is there any reason (assuming I choose the right size core, made of the correct material for the application and winding it with the right size wire) for not using one as a base loading inductor on a vertical antenna? I'm talking 100 watts maximum transmitter output here.
>
> Any down side to doing this?
>
> Thanks and 73,
>
> Ken Alexander
> VE3HLS
> _
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