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 Post subject: Finally, audiophile grade resistors
PostPosted: Feb Wed 07, 2018 6:41 pm 
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https://www.mouser.com/blog/reating-a-s ... -resistors


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 Post subject: Re: Finally, audiophile grade resistors
PostPosted: Feb Wed 07, 2018 6:49 pm 
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They are not expensive enough :D

Russ

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 Post subject: Re: Finally, audiophile grade resistors
PostPosted: Feb Wed 07, 2018 6:51 pm 
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".....The combination of materials employed in construction help these resistors perform with excellent long-term stability, reliability and temperature cycling. Nickel-plated steel termination caps are pressed upon ceramic rods, before a pulse-mode-driven Neodymium-Yttrium Aluminum Garnet (Nd-YAG) laser cuts a helical groove upon the metal-film resistive layer. ...."

God forbid they use a diode laser for my resistors....the sputtering - Oh, the humanity!

-120db/uV, or about 70db/uV below human hearing sensitivity. Just because one can measure...... :shock:

No worries here - I wear hearing aids, so audiophoolery is a lost cause with me....

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 Post subject: Re: Finally, audiophile grade resistors
PostPosted: Feb Wed 07, 2018 6:52 pm 
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I can verify the entire blah blah blah blah blah.

Um, I don't buy it.

Mark D.


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 Post subject: Re: Finally, audiophile grade resistors
PostPosted: Feb Wed 07, 2018 6:53 pm 
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A serious note though - when the old guard starts chasing the Audiophools, what does that say about the component business?

Really, a conglomerate like Vishay, stooping to this to sell a few hundred thousand resistors? Losing respect, I'd say.

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 Post subject: Re: Finally, audiophile grade resistors
PostPosted: Feb Wed 07, 2018 7:01 pm 
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I am only seeing this product available in surface mount formats. The tube audio and guitar people will not be pleased.

Seriously, though, I wonder if these resistors are a better fit for precision circuitry used in laboratory equipment, and the article that we read is just Mouser's attempt to introduce these resistors to another market.


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 Post subject: Re: Finally, audiophile grade resistors
PostPosted: Feb Wed 07, 2018 7:21 pm 
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I don’t think there’s really any argument with using top quality parts to get top quality results, the problem is the ridiculous claims associated with so many “Audiophile” products, cryogenically treated wall outlets or directional cables and special wood knobs for instance.


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 Post subject: Re: Finally, audiophile grade resistors
PostPosted: Feb Wed 07, 2018 8:24 pm 
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Alfredo_T wrote:
I am only seeing this product available in surface mount formats. The tube audio and guitar people will not be pleased.



That opens an opportunity for you. Procure some "oxygen free solder" and attach the SMD to oxygen free copper leads and sell them to the audio and guitar people :)

Oxygen free solder could be a big seller in that market but better yet offer a variety of boutique solders infused with a small amount of oxygen from different locales to impart the desired magic.

Rodger WQ9E


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 Post subject: Re: Finally, audiophile grade resistors
PostPosted: Feb Thu 08, 2018 11:36 am 
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Tell me more about yttrium. With a name like that it's gotta be good.


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 Post subject: Re: Finally, audiophile grade resistors
PostPosted: Feb Thu 08, 2018 11:39 am 
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Alfredo_T wrote:
.......and the article that we read is just Mouser's attempt to introduce these resistors to another market.


Actually, it's a marketing article written by a Vishay engineer. Vishay is the one stooping low and hawking.....

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 Post subject: Re: Finally, audiophile grade resistors
PostPosted: Feb Thu 08, 2018 3:39 pm 
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I can see using them in the front end of a very high gain stage like a low output moving coil preamp. Any reduction in noise is good. But I had thought that metal film leaded resistors were plenty good enough in most cases. These being SMD just shuts out alot of us from using them I guess. Or I suppose you could solder leads to them and then dip them in epoxy! Certainly if they are more costly than the metal film varieties, I would maybe balk at getting any. Well it is a case of boring old resistors. What can marketing do to cause excitement and encourage demand? That is how you keep your job.


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 Post subject: Re: Finally, audiophile grade resistors
PostPosted: Feb Thu 08, 2018 4:55 pm 
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Did anyone happen to notice the date of the article (4/1/16).......


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 Post subject: Re: Finally, audiophile grade resistors
PostPosted: Feb Thu 08, 2018 5:05 pm 
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I remember decades ago I built a audio preamp from a magazine article and used plain old carbon resistors instead of the specific type specified in the instructions. When I was done I had a very nice white noise generator!


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 Post subject: Re: Finally, audiophile grade resistors
PostPosted: Feb Thu 08, 2018 5:31 pm 
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8417 wrote:
Did anyone happen to notice the date of the article (4/1/16).......


Wow. Thanks! Restores some of my respect for Vishay. Hook, line, sinker.......ouch. :lol:

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 Post subject: Re: Finally, audiophile grade resistors
PostPosted: Feb Fri 09, 2018 7:13 am 
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Greetings to arbilab and the Forum:

Yttrium (atomic # 39) is usually classed as a rare-earth element. See https://en.wikipedia.org/wiki/Yttrium for more data.

What I remember about Yttrium is that it is alloyed with iron to form a synthetic garnet, which is used in uWave oscillators, filters and beam formers in phased array antennas. When I worked for Raytheon Co., we used them in the latter application to electrically steer uWave beams from fixed antennas. Raytheon made their own YIG crystals for this purpose, and had big enough productions runs (and enough rejects, I guess) that they started a side business making jewelry out of them. They called them "Triamonds" and you could get them set in rings, pendants and earrings for the little lady at a fraction of the cost of real diamonds of equivalent size.... and it took an expert to tell them apart.

Regards,

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 Post subject: Re: Finally, audiophile grade resistors
PostPosted: Feb Fri 09, 2018 9:15 am 
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Thanks Jim. 'Course, I was doing an Airplane to the author, whom I expected to assert they were annealed anechoically.

Next incarnation, with an alternate array of Aspergilian affects, I wanna be a materials guy.


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 Post subject: Re: Finally, audiophile grade resistors
PostPosted: Feb Fri 09, 2018 11:17 am 
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Low-noise resistors are nothing new; they had them 50+ years ago. Usually, they were used as plate resistors in low level audio stages. Another old trick was to use one-watt resistors everywhere, as it was claimed that they had lower noise.

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