[Lowfer] Re: Triflier Core Winding

[Alberto di Bene]

Hi Stewart and the list,

  yes, in that case the impedance ratio is 4:1.
I had in mind rather the bifilar Guanella 'choke' balanced
to unbalanced transformer, that's why at first I was a bit
uneasy with the reported 4:1 ratio.

73  Alberto  I2PHD


Stewart Nelson wrote:

> While it's not the only application, it's quite common for
> multifilar windings to be connected in series and used as an
> autotransformer.  In that case, if the entire resulting winding
> is used as the primary, and a single section as the secondary,
> then the impedance ratios are as John quoted.
>
> --Stewart