I wound all my wideband transformers on ferrite, like beverage 9:1
transformers, stack match 2:1 transformers etc.
I use powered iron cores in tuned circuits only.
73
Peter, DJ7WW
-----Original Message-----
From: TowerTalk [mailto:towertalk-bounces@contesting.com] On Behalf Of Jim
Lux
Sent: Montag, 3. Juni 2013 16:46
To: towertalk
Subject: Re: [TowerTalk] One more dipole-balun question
On 6/3/13 7:04 AM, Chris wrote:
> Jim.
>
> What is the "right choice" for an impedance transformer core (for a 4;1,
9:1 etc. )? What mix?
>
Depends on the frequency.. Typically you're looking for a powdered metal,
not a ferrite.
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