[TowerTalk] One more dipole-balun question

[Peter Voelpel]

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 at 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.