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August 24, 2019, 04:48:45 AM

Author Topic: Grainger's Fast Break In Method for Caps  (Read 312 times)

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Online Deke609

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Grainger's Fast Break In Method for Caps
« on: January 13, 2019, 05:07:13 AM »
There are a number of references to Grainger's method on this forum, but the links are broken.

Here is a working link to Grainger's post on the now-archived Audio Asylum Bottlehead forum: https://db.audioasylum.com/mhtml/m.html?forum=bottlehead&n=134386&highlight=fast+break+in&r=&search_url=/cgi/search.mpl

Does anyone know whether multiple caps can be broken in at the same time using Grainger's method by putting them in either parallel or series?

Edit: fixed and tested the wonky link - it should now work.

cheers,

Derek
« Last Edit: January 13, 2019, 02:32:29 PM by Deke609 »
Derek
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Roon Intel NUC ->  Yggdrasil DAC -> BeePre (w/ BeeQuiet and EML 300B)  -> Stereomour IIs (2A3 [EML 2A3 Mesh] and 45 Conversion [EML 45B] - both fully upgraded)  -> Audeze LCD4

Offline Karl5150

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Re: Grainger's Fast Break In Method for Caps
« Reply #1 on: January 13, 2019, 01:33:30 PM »
Don't remember the specifics of Grainger's method. I insert 1 in each channel of the + speaker line of the garage stereo, tune to static (?) and let it play for 3-4 days.
Karl
Analog: Planar3>Eros>Stereomour II>Tekton OB4.5 & DIY "S8" subs
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Online Deke609

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Re: Grainger's Fast Break In Method for Caps
« Reply #2 on: January 13, 2019, 02:16:58 PM »
What about breaking in multiple caps at the same time on the same line? What would be better for break-in, in series or in parallel?

I'd like to experiment with different values of output caps by building a switchbox of different values of already broken in caps for quick comparisons.
« Last Edit: January 13, 2019, 02:23:38 PM by Deke609 »
Derek
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Roon Intel NUC ->  Yggdrasil DAC -> BeePre (w/ BeeQuiet and EML 300B)  -> Stereomour IIs (2A3 [EML 2A3 Mesh] and 45 Conversion [EML 45B] - both fully upgraded)  -> Audeze LCD4

Offline Paul Birkeland

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Re: Grainger's Fast Break In Method for Caps
« Reply #3 on: January 13, 2019, 02:19:14 PM »
or in parallel?
Amplifiers that aren't unconditionally stable won't be very excited about having a cap connected across the speaker terminals. 

Any of the Bottlehead tube power amps won't mind this though.
Paul "PB" Birkeland

Bottlehead Grunt & The Repro Man

Online Deke609

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Re: Grainger's Fast Break In Method for Caps
« Reply #4 on: January 13, 2019, 02:30:54 PM »
Thanks PB.  So, do think in parallel is better than in series for break-in? Or did you simply mean to highlight the potential risks of going parallel with other amps?
Derek
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Roon Intel NUC ->  Yggdrasil DAC -> BeePre (w/ BeeQuiet and EML 300B)  -> Stereomour IIs (2A3 [EML 2A3 Mesh] and 45 Conversion [EML 45B] - both fully upgraded)  -> Audeze LCD4

Offline Paul Birkeland

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Re: Grainger's Fast Break In Method for Caps
« Reply #5 on: January 13, 2019, 03:09:09 PM »
Highlighting the potential risks.
Paul "PB" Birkeland

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Offline Paul Joppa

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Re: Grainger's Fast Break In Method for Caps
« Reply #6 on: January 13, 2019, 03:23:51 PM »
Since nobody knows for sure how break-in works for caps, the only way to tell whether series or parallel is better would be to do the experiment. I am not aware of any documented results from such an experiment.

That said, I will speculate that you need AC current, the more the merrier, so I'd put them in parallel so each cap sees the highest voltage (and carries the highest current) possible.
Paul Joppa

Online Deke609

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Re: Grainger's Fast Break In Method for Caps
« Reply #7 on: January 13, 2019, 03:36:37 PM »
Many thanks PJ.
Derek
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Roon Intel NUC ->  Yggdrasil DAC -> BeePre (w/ BeeQuiet and EML 300B)  -> Stereomour IIs (2A3 [EML 2A3 Mesh] and 45 Conversion [EML 45B] - both fully upgraded)  -> Audeze LCD4