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Burn-in requirement, for the Vitamin-Q's?

Jun 5, 2008 at 1:23 AM Thread Starter Post #1 of 40
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Headphoneus Supremus
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Just got some VitQ's, and wondering how long it will take to do the burn-in? Anybody knows? These caps are ancient stuff made in the mid-70's.

Thanks
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Jun 5, 2008 at 3:03 AM Post #4 of 40
Quote:

Originally Posted by rds /img/forum/go_quote.gif
Set your oven to 400F and bake for 3 hours, basting every 20 minutes for a more buttery sound.
For crispier highs broil for 5 minutes after baking.
Bon appetite!


Reeeeeeally helpful post ...
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lame
 
Jun 5, 2008 at 3:06 AM Post #5 of 40
I didn't notice any burn in time, but, had new tubes / solder etc, so no telling - in the Millett, I never noticed a difference after a couple of days. Certainly nothing like the Black Gate 'bloom' cycle.
 
Jun 5, 2008 at 3:14 AM Post #6 of 40
Quote:

Originally Posted by epaludo /img/forum/go_quote.gif
Reeeeeeally helpful post ...
smily_headphones1.gif

lame


About what the topic deserves, actually. The first reply was the most helpful... listen to them.
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Jun 5, 2008 at 4:39 AM Post #8 of 40
Quote:

Originally Posted by Pars /img/forum/go_quote.gif
About what the topic deserves, actually.


how so?

listen to them before fully burnt-in might yield wrong impressions. I just need to do some quick cap tests to decide if they will work well in a certain device, don't really want to install them first and listen and wait and wait and wait see if maybe something will change or not. asking about BlackGate's burnt-in time is a volid question, why won't this one be?
 
Jun 5, 2008 at 5:18 AM Post #9 of 40
I'm not a believer in cap burn-in. What next, resistors? Hookup wire? Volume knobs?
 
Jun 5, 2008 at 5:34 AM Post #11 of 40
Quote:

Originally Posted by user18 /img/forum/go_quote.gif
I'm not a believer in cap burn-in. What next, resistors? Hookup wire? Volume knobs?


Note the post above by Pabbi about Black Gates. It's so real that if you let a Black Gate sit for awhile unused, you have to break it in all over again.

As for film caps - including Vitamin Q's - the rest of the guys are right: little to no time. Personally, I think it follows size. Large electrolytics such as 1000uf Black Gates may take 100 hrs or longer - small ones such as the 47uf's on an Alien DAC, maybe just a few hours. A film cap down in the fractions of uf's? Don't worry about it.
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Jun 5, 2008 at 5:38 AM Post #13 of 40
Quote:

Originally Posted by rds /img/forum/go_quote.gif
Why would a dielectric change by simply using the cap? It is equally illogical.


The dielectric has to align itself (form) according to the current flow. That fact is undisputed. It's only that most believe it happens in a few seconds. Those of us that have used Black Gates can assure you it takes longer than that. It may very well be dependent on the material components and how easily they are physically affected by current flow.
 
Jun 5, 2008 at 5:44 AM Post #15 of 40
Quote:

The dielectric has to align itself (form) according to the current flow. That fact is undisputed. It's only that most believe it happens in a few seconds.


I'm pretty sure that is on the order of nano seconds. Pretty much all electronics have that kind of "burn in".
But the idea that the material is changing over time in some significant way (I don't think we're talking about quantum effects here ... but you never know
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) doesn't make sense to me. But that doesn't mean a whole lot either, I don't claim to have a good understanding of this stuff.
 
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