[Antennas] Balun Measurements
Charles Greene
[email protected]
2002年1月07日 15:24:40 -0500
At 11:21 AM 1/7/2002 -0500, you wrote:
>Hi Chas,
>>you wrote:
>> > The balun is a small 1:4 current balun that I have run up to 100
> > watts, wound on a FT114-43 toroidal core.
>>I wonder how you managed to build a 1:4 current-balun with just one core. How
>did you wind it ?
>>73
>Karl,
I'm sorry, this particular balun is wound on two cores; I misstated
it. However, I have built several current baluns wound on a single
core. You wind one set of bifilar windings on 1/2 of the core, then you
wind a second set of bifilar windings on the other half of the core. There
is a write up with pics and schematics of single core baluns on Tom
Hammonds's web site by Tom and myself: http://home.earthlink.net/~n0ss
I have found that the single core current balun does not perform as well as
the two core current balun.
73, Chas, W1CG