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Re: [TowerTalk] Chokes, toroids and coax (Oh my!)

To: towertalk@contesting.com
Subject: Re: [TowerTalk] Chokes, toroids and coax (Oh my!)
From: Jim W7RY <jimw7ry@gmail.com>
Reply-to: jimw7ry@gmail.com
Date: Tue, 4 Oct 2022 11:39:56 -0500
List-post: <mailto:towertalk@contesting.com>
Mouser for the cores.

I recommend RG-400. It has a stranded center conductor vice the RG-142, which is a solid conductor. RG-400 is easier to wind and stays put.

Make sure you look for some RG-400 at Dayton. There is always some there. Sans that, check eBay or the swap sites QRZ and QTH.
73, Jim W7RY


On 10/4/2022 11:32 AM, kq2m@kq2m.com wrote:
Hi,

I am in the process of deciding on materials to use in making the new K9YC recommended chokes (thank you Jim!) for for my yagis, 4-squares and for EMI suppression purposes.

What I want to buy is:

31 material Toroids, I believe this would be Fair-rite part #2631803802 2.4" OD  1.4" ID rings
RG 142  Coax
RG 179  Coax
RG 400  Coax

Does anyone have any recommendations from whom I should buy these materials?

I see the 31 material toroids for ~ $9 - 10 if I buy 25 or so

RG142, RG179, RG400 vary enormously in price - and possibly also in quality.  I don't know one manufacturer from another.

I would appreciate any recommendations/details as to whom you would buy from (or have bought from) and who you would avoid.

Also, what/who would you recommend for small boxes in which to house the toroid?

Tnx & 73

Bob, KQ2M
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--
Thanks and 73, Jim W7RY
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