I have been enjoying all the feedback and comments on this subject.
I have decided to try this balun as an external add-on to my tuner,
since this will allow me to choose between it and the internal one
depending on the situation. Since I already have run the twinlead
into the shack, I will use a PL-259 barrel connector to attach this
unit to one of the 4229 inputs, then connect the feedline right to it.
That will make the leads from the two baluns to the tuner circuit
essentially the same length. I can do some temperature comparisons
between the two baluns and see which seems more efficient.
73
-sw-
On Fri, Nov 12, 2010 at 10:16 AM, Scott Walker <richardscottw@gmail.com> wrote:
> I use a 4229 Tuner that I put together many years ago. Part of the
> build process was winding a balun for the twinlead input of the tuner.
> Being a ham means being unable to leave well enough alone. I wonder
> if replacing the 4229 stock balun with one of these might be worth the
> effort:
>
> http://www.balundesigns.com/servlet/the-98/isolation-choke-balun-common/Detail
>
> Specifically, the $71.95 Model 1114x - No Enclosure or Connectors
> I have run twinlead into the shack, so I don't have a use for the
> external version. The manufacturer states that "This model provides
> higher levels of inductive reactance and also holds the 50 input level
> at much lower frequencies."
>
> Has anyone on the list done this with their antenna tuner?
> Thanks.
> -Scott N3SW
>
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