MiniCircuits. What a story from cheap parts made by bored housewives in
NYC to what they are today.
Al N6TA
On Thu, Nov 13, 2025 at 9:08 AM <towertalk-request@contesting.com> wrote:
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> Today's Topics:
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> 1. Lexicon of Balun and Transformer Configurations
> (M?ximo EA1DDO_HK1H)
> 2. Re: Lexicon of Balun and Transformer Configurations (Jim Brown)
>
>
>
> ---------- Forwarded message ----------
> From: "Máximo EA1DDO_HK1H" <ea1ddo@hotmail.com>
> To: "towertalk@contesting.com" <towertalk@contesting.com>
> Cc:
> Bcc:
> Date: Thu, 13 Nov 2025 09:29:36 +0000
> Subject: [TowerTalk] Lexicon of Balun and Transformer Configurations
> FYI
>
>
> https://blog.minicircuits.com/lexicon-of-balun-and-transformer-configurations/
>
> 73, Maximo EA1DDO
>
>
>
>
>
> ---------- Forwarded message ----------
> From: Jim Brown <jim@audiosystemsgroup.com>
> To: towertalk@contesting.com
> Cc:
> Bcc:
> Date: Thu, 13 Nov 2025 03:03:13 -0800
> Subject: Re: [TowerTalk] Lexicon of Balun and Transformer Configurations
> Hi Maximi,
>
> Thnaks for hMiniCircuits is a well established mfr of quality products.
> I've specified the for projects and used them myself for at least 40
> years, and their engineering catalog has been on my shelf even longer.
> It is the sort of catalog that REAL engineers love -- a lot of data in
> useable form, like Fair-Rite, Electro-Voice, the RCA tube manuals, and
> the app notes from a great semiconductor mfr.
>
> BUT -- the word "balun" has been used in the last 30 years to describe
> at least ten sorts of things that were physically VERY different. In
> other words, "balun" has NO physical meaning -- it is a "concept" of
> somehow, in those en different ways, interfacing systems that are called
> "balanced" and ""un'balanced," in at least ten different physical forms.
> One is a common mode choke. Another is a transformer. Another is a
> section of transmission line. At least three are electronic devices.
> Some deal with audio, some with video, some with radio.
>
> Erase the word "balun" from your vocabulary. It is nonsense.
>
> BTW -- I was elected a Fellow of the Audio Engineering Society, where
> balanced and un-balanced transmission is a very big deal, a member of
> the Standards Committee of the Audio Engineering Society for for 40
> years, and my work on RF systems has been in the ARRL Handbook and
> Antenna Book for since about 2011.
>
> 73, Jim K9YC
>
> On 11/13/2025 1:29 AM, Máximo EA1DDO_HK1H wrote:
> > FYI
> >
> >
> https://blog.minicircuits.com/lexicon-of-balun-and-transformer-configurations/
> >
> > 73, Maximo EA1DDO
> >
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