Steve, it was a balun for matching their quads and delta loops to
50-ohm coax and was magically compact (~3in diam X 2in high).
Perhaps I need to find one and dissect it.
Barry N1EU
On Mon, Jun 27, 2011 at 11:11 AM, Steve Hunt <steve@karinya.net> wrote:
> 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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