[TowerTalk] 2:1 Transmission Line Transformer

[Steve Hunt]

Barry,

I wonder if it was an UnUn rather than a BalUn. Sevick shows a simple 
2.25:1 UnUn transformer comprising a trifilar winding on a single core.

I can't think of any way you'd do a true 2:1 TL Balun with a trifilar 
winding on a single core!

73,
Steve G3TXQ


On 27/06/2011 15:53, Barry N1EU wrote:
> Lightning Bolt used to offer a compact 2:1 balun that was described as
> a "transmission line transformer that is trifilar wound on a ferrite
> core."
>
> Can anybody direct me to details on such a single core design?  I've
> searched the Web and Sevick's books with no success.
>
> Thanks/73,
> Barry N1EU
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