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!
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
> Can anybody direct me to details on such a single core design? I've
> searched the Web and Sevick's books with no success.
> Barry N1EU
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