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Re: [TowerTalk] Wireman W2DU Current Type Balun

To: towertalk@contesting.com
Subject: Re: [TowerTalk] Wireman W2DU Current Type Balun
From: Jim W7RY <jimw7ry@gmail.com>
Reply-to: jimw7ry@gmail.com
Date: Sat, 24 Dec 2022 22:40:46 -0600
List-post: <mailto:towertalk@contesting.com>
No. I don't know that for sure.
W7RY


On 12/24/2022 9:29 PM, Jim Brown wrote:
On 12/24/2022 6:47 PM, Jim W7RY wrote:
The 1:1 shown is exactly the same as Balun Designs. Except for the housing.

Do you know that it's the same ferrite mix? That makes a huge difference, and #31 the only one I've found that yields REPEATABLY good high Rs values at HF. #43 and #52, which can provide high enough values, but they are much higher Q than #31, so the wide mfg tolerances of all ferrite cores causes every one to be different.

73, Jim K9YC


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--
Thanks and 73, Jim W7RY
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