[Elecraft] [K3] Issue with HI CUR on 12m

[Walter Underwood]

“Balun” is also misleading because “balanced” transmission line is a misleading idea. Whether the transmission line is coax or two-wire, it can carry both differential mode and common mode currents.

I prefer the words “choke” and “transformer”.

wunder
K6WRU
Walter Underwood
CM87wj
http://observer.wunderwood.org/ (my blog)

> On Oct 14, 2020, at 10:14 AM, Alan - G4GNX <g4gnx at g4gnx.com> wrote:
> 
> Jim. I agree about the MISS-use of the word balun. As the word is actually supposed to represent a balanced to unbalanced TRANSFORMER, I have used it in its correct sense.
> 
> If I had meant common mode choke, I would have said so.
> 
> If the OP is not using a balun in the true sense of the word, then he should say so.
> 
> Sorry, but I can't be held responsible for others' misuse of the terms.
> 
> I don't see why the word "balun" should be eliminated. That's like saying the word "resistor" should be eliminated because I actually mean to describe a capacitor, but can't be bothered to learn the correct terminology. :-)
> 
> 73,
> 
> Alan. G4GNX
> 
> ------ Original Message ------
> From: "Jim Brown" <jim at audiosystemsgroup.com>
> To: elecraft at mailman.qth.net
> Sent: 14/10/2020 17:57:31
> Subject: Re: [Elecraft] [K3] Issue with HI CUR on 12m
> 
>> On 10/14/2020 6:19 AM, Alan - G4GNX wrote:
>>> I presume that you disconnected the feeder from the balun when you did the DC Ohms test? If not, there is something wrong because you should see almost a dead (DC) short through the primary of the balun.
>> 
>> Here's an example of where the word "balun" blows up our thinking about problem solving. The "balun" you're describing is a transformer, sometimes called a voltage balun. Other things commonly called a "balun" are a common mode choke, which should look like an open circuit at both DC and RF.
>> 
>> The word "balun" should be eliminated from our use. I know of at least ten very different things that are called a "balun."
>> 
>> 73, Jim K9YC
>> 
> 
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