Are Cables Really Directional?

I had a drawing and explanation on this site, I believe it's still there, shows the path impedances.
I can't find that anymore. Sure it is archived somewhere but not sure where. Might have to call on some mod magic to find it 🙂

BTW love the colour coding on your department org chart. The scientists are in red. Is that to make sure no one accidentally hands them a screwdriver?
 
And then for the third type of cables, AC power cords, we are back to a huge snake oil fiasco again.
Don’t forget gold plated prongs for perfect transfer of your dirty house mains to your ego-fi. 😁
I find power cords are definitely directional. The wrong way round and I don’t get any sound at all.
The grounding is very important, joking aside, and I try to have a single earth connection to the house. Safety first though.
 
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I assumed that you don't have a degree, because you keep putting down those that do have one. And that is usually the behavior of someone who is not degreed but thinks that they are smarter than those who are. It is rare behavior for those who are degreed just out of mutual respect for one another.

Perhaps you would like to clarify the situation.
Certainly.

As I've stated, Gene seems like a nice guy, reasonably smart (as much as I can tell just from videos and the occasional e-mail over the last decade or so).

Stating that someone does not have the technical experience or level of expertise for a specific discussion is not a put down. It is a statement of what I believe his level of expertise is. For you to think I am putting him down is not my problem, it is your problem of assumption.

His "schtick" as it were, is using his platform to address many of the more silly ideas out there, snake oil as it were. I have no problem with that, as there will be many who are fooled by the crazy notions used to sell high markup items like cables. He does a service to those who do not have the technical education to understand otherwise.

It's an income for him, and I've no problem with that.

Some of the problems however, such as the ground loop considerations and proximity vs skin effect I pointed out, are beyond his level of expertise. Not a put down, just a statement of fact. Doesn't mean I look down on him..on the contrary, earning a living doing what he is doing is admirable.

You must learn to distinguish between actual put downs vs statements about level of expertise.

As far as I recall, I've never stated that I was the world's expert in anything. I'd be happy if you pointed out where I stated that. (I mean, other than the following paragraph...).

Oddly enough, I do get calls from national labs around the world to assist (problem solve) in five different technological disciplines, one of which I really do not like (NEC, yuk..). The reason I get called is not absolute expertise, but rather, the ability to cross disciplines.
But the best part is I get to learn from some of the leading scientists and physicists on this planet, and they still pay me to have this fun...

Discussions on sites like this make me think and question. A good example is the speaker cable characteristic impedance vs settling time issue. My boss wants me to put together a proposal to have the engineering group build and test the mismatch in cable to load impedance for high bandwidth beam orbit feedback systems. The physicists and beamline scientists would be very happy if I can double the bandwidth by simply dropping triaxial cables into locations where twisted pairs exist. It's much easier than putting the amplifiers into the radiation environment right next to the beam, that is so problematic for solid state devices.

I've advanced as a result of many discussions here, advances which help my employer, which is why I remain and engage.


John
 
I can't find that anymore. Sure it is archived somewhere but not sure where. Might have to call on some mod magic to find it 🙂

BTW love the colour coding on your department org chart. The scientists are in red. Is that to make sure no one accidentally hands them a screwdriver?
I couldn't figure out what you were talking about, red??
Then I realized, different division. I do 50% there building superconducting magnets. The rest is with my current employ and two other divisions, doing motion control, NEC, cryogenic diodes, and mop the floors...
Most of the time, they fight over who I work for, claiming it's not with them, must be somebody else...don't blame us...

I also can't find my old drawings on this site. George is mister wayback, maybe he can help..

John

ps. I do have a you-tube account, put some toroidal winder vids up for the machine I made, perhaps there's some pic options there or elsewhere I could store stuff.
 
Could you please draw that schema - I would like to understand it better... !

//
Yes, but it might take a coupla days. I'm very, very busy making a stained glass tweety bird for my sister..and fixing a sprinkler zone and antique clock..

Sigh, as I approach my "use by" date, there never seems to be enough time for all the projects..may just have to retire..

John
 
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...
Some of the problems however, such as the ground loop considerations and proximity vs skin effect I pointed out, are beyond his level of expertise. Not a put down, just a statement of fact....
You don't know that for a fact. You seem to think that you are the only one that understands some of these issues. You really have no idea about someone else's level of expertise and no business even commenting on it on the first place.

So sorry, but I'm not buying that you alone understand things that others do not.

And you still haven't clarified whether you are a degreed engineer or not. I appreciate that that is a rather personal question, and you are under no obligation to answer it. And I wouldn't even bring it up if wasn't for the fact that you keep putting down people who are degreed. As I said in my previous post, that is behavior sometimes exhibited by people without degrees, but rarely by ones with them.
 
Its interesting that some will discount meaningful knowledge if not "certified" with a degree. However the degree really isn't a solid validation of knowledge either. Maybe a validation of knowing what is commonly believed in a particular discipline. None of JNeutron's stuff conflicts with Maxwell's laws, something that cannot be said for most really expensive cable claims. Meanwhile not having a degree doesn't mean someone can't contribute significantly: https://jamesaconrad.com/TK/famous-scientists-who-never-had-a-science-degree.html
 
And you still haven't clarified whether you are a degreed engineer or not. I appreciate that that is a rather personal question, and you are under no obligation to answer it. And I wouldn't even bring it up if wasn't for the fact that you keep putting down people who are degreed. As I said in my previous post, that is behavior sometimes exhibited by people without degrees, but rarely by ones with them.
Actually, you didn't state 'sometimes' you stated 'usually'.

There's a big difference. The former, IME is closer to reality.

TCD
 
Its interesting that some will discount meaningful knowledge if not "certified" with a degree. However the degree really isn't a solid validation of knowledge either. Maybe a validation of knowing what is commonly believed in a particular discipline. None of JNeutron's stuff conflicts with Maxwell's laws, something that cannot be said for most really expensive cable claims. Meanwhile not having a degree doesn't mean someone can't contribute significantly: https://jamesaconrad.com/TK/famous-scientists-who-never-had-a-science-degree.html
A friend of mine interviewed Rupert Neve for a Pro Audio mag. Neve described his qualifications as 'QBE'. 🙂

TCD
 
Its interesting that some will discount meaningful knowledge if not "certified" with a degree. However the degree really isn't a solid validation of knowledge either. Maybe a validation of knowing what is commonly believed in a particular discipline. None of JNeutron's stuff conflicts with Maxwell's laws, something that cannot be said for most really expensive cable claims. Meanwhile not having a degree doesn't mean someone can't contribute significantly: https://jamesaconrad.com/TK/famous-scientists-who-never-had-a-science-degree.html
I never said or even suggested that he was lacking in knowledge or hasn't made significant contributions.

The problem is that in some earlier posts in this thread he was making comparisons to engineers with degrees claiming that they don't understand things well enough and that their education is deficient. There is a certain element of "I'm a lot smarter than everybody else" that is troublesome.
 
Meanwhile not having a degree doesn't mean someone can't contribute significantly: https://jamesaconrad.com/TK/famous-scientists-who-never-had-a-science-degree.html
Thanks Demian.

A few (most? All?) of the pioneers of Electricity were polymaths. Sharp minds who could reason things.

I am currently reading a good book and this has made me think about it again.

https://www.amazon.com/Electronic-Strength-Materials-Cambridge-Science/dp/0521078946

Nevertheless, John holds a degree (maybe more than one).

And he speaks of graduates suffering due to weakness in the teaching system (curriculum).

George
 
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