[Lowfer] Common Mode Chokes (was Active Whips)

[Dexter McIntyre W4DEX]

Thanks for the info Doug.  The coax you used looks a bit larger in 
diameter than the RG-174 I'm familiar with.  How many turns did you get 
through the 23 mm ID of the cores?  Looks like maybe 30?

Dex

Douglas D. Williams wrote:
> Regarding the Clifton Labs common mode choke plans, once I told Jack at
> Clifton Labs that I was mainly interested in 8 kHz to 500 kHz reception and
> was planning on building one of his common mode chokes he told me, and I
> paraphrase, to glue five 40T1417-10H (Digi-Key part # 240-2537-ND) together
> and to wrap as many turns of RG-174 through them as I could fit. This I did.
>
> https://dl.dropbox.com/u/33457409/common%20mode%20choke.jpg
>
> 73, Doug KB4OER
>
>