[Lowfer] Common Mode Chokes (was Active Whips)

[W5COV]

Thank you Doug for the information . Where is the best source to buy RG-174 these days ? I am at the point where I need to reorder to stock back up on it and the former dealer that I was getting it from , no longer handles it .

I must say these are the most informative and nuts and bolts subjects , being very thoroughly discussed and in a format that anyone in the hobby can understand and should help many of us improve our receiving stations .

I look forward to them continuing . It has been a very long time since I have seen such a sustained discussion of benefit to everyone on here. I would like to thank everyone that is contributing also .

Charlie , W5COV

---- Dexter McIntyre W4DEX <dexter.mc at gmail.com> wrote: 
> 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
> >
> >   
> 
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