For all, I would strongly recommend the following reference:
*Transmission Line Transformers*
By: Jerry Sevick, W2FMI
ISBN: 0-87259-046-1
Amaxon like has it.
Dave - WØLEV
On Thu, Nov 1, 2018 at 7:53 PM David Eckhardt <davearea51a@gmail.com> wrote:
> OK, guys, I had to go back and redo the measurements as I couldn't find
> them on the HD, only pictures of the 'subjects'. So, have a read of the
> attachment where I present three CM chokes, all of bifilar winding manner.
> If there are questions, please email. SEE THE ATTACHMENT.
>
> You can read the resulting complex impedance for each of the 5 different
> resistive terminations for each of the three CM chokes which I measured off
> the Smith Chart plots.
>
> Questions? Please email.
>
> Dave - WØLEV
>
> On Thu, Nov 1, 2018 at 4:17 PM bill K7WXW <K7WXW@qrpdx.org> wrote:
>
>> Thanks for the info on what you are doing Jim, and Davem the offer to
>> share data on your chokes. I am looking forward to studying all of it.
>>
>> If I separate "how many turns and what materials should be used" out of
>> the current discussion, I am still looking for tips on building chokes,
>> particularly bifilar chokes and getting small connectors onto big wires,
>> choice of connector configuration (everything i own uses UHF connectors)
>> and the like. I am figuring all this out in my own bumbling way but it
>> would probably save some wire and a boxful of connectors to hear what
>> you all do.
>>
>> 73 de bill K7WXW
>>
>>
>>
>> ______________
>> brevity is beautiful.
>> _______________________________________________
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>> http://lists.contesting.com/mailman/listinfo/rfi
>>
>
>
> --
>
> *Dave - WØLEV*
> *Just Let Darwin Work*
> *Just Think*
>
--
*Dave - WØLEV*
*Just Let Darwin Work*
*Just Think*
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