Vicenc,
For an impedance transformation of 2.25:1, you need a turns ratio of 1.5:1.
You will have to determine the minimum and maximum number of turns required
from the core data and the impedance it will connect to. As a general rule,
you need about 5 times the impedance in the winding as you have in the load.
Of course the wire size and core size must be adequate to handle whatever
power you will subject it to.
73,
Don W3FPR
> -----Original Message-----
>
> I am on the way of refurbishing my Lightning Bolt 2 element delta loop
> and I am looking either for a spare transformer to feed it or
> alternatively for a schematic diagram to homebrew the transformer. If
> anybody owns one of those transformers and would be willing to part with
> it, please let me know. Any comments or suggestions on how to build this
> 2.25:1 transformer will be welcome.
> Thanks in advance and best 72
>
> Vicenç, EA3ADV
>
>
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