Rich said:
> It is a broadband, ferrite toroidal-core,
>transformer that triples the RF driving V for the grid. Twisting the
>bundle of 4 wires prior to winding reportedly improves bandwidth.
A lot depends on whether you go for a conventional transformer in which energy
is transferred through the core, or a transmission line transformer where the
core has a common mode suppression function. Worth getting Sevick's
'Transmission Line Transformers' book. It used to be published by ARRL, but I
believe it's now published by someone else. Certainly the techniques in
transmission line tranformers use twisted wire transmission lines, and they are
capable of very wide bandwidths.
73
Peter G3RZP
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