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Old 3rd February 2007, 05:50 PM   #1
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Default Quick quick question !

I want to build a alpeh 5 amp, just want to know for the power supply filtering it a good idea to use 120000uf 50v cap for filtering ?? or I am better with a bank of 10000uf 50v cap ??
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Old 3rd February 2007, 06:59 PM   #2
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Default Re: Quick quick question !

Quote:
Originally posted by guitvinny
I want to build a alpeh 5 amp, just want to know for the power supply filtering it a good idea to use 120000uf 50v cap for filtering ?? or I am better with a bank of 10000uf 50v cap ??

if quality of caps in question is in same league-it's always better to use several smaller ones
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Old 3rd February 2007, 10:57 PM   #3
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I've seen arguments both ways. Basically, my feeling is that as long as the total capacitance is the same, then you'll be hard pressed to tell the difference.
I am currently experimenting with big caps feeding smaller ones at the devices--sorta having it both ways, if you follow what I'm saying. No final opinion, yet.

Grey
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Old 3rd February 2007, 11:38 PM   #4
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I was also thinking to build a ``perfect capacitor`` by doing a decreasing series of cap.. like : 10,000uf --> 5,000uf --> 1,000uf --> 1uf --> .1uf to filter a whole range of freq.. and finally a RC to filter residue of inductance.. good or too much ?
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Old 4th February 2007, 01:34 AM   #5
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Old 7th February 2007, 02:05 PM   #6
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Hi again,

1rst : I can get 50000 uF 60V cap by vishay(sprague) or duracap(mallory) is there a significant difference between them ?

2nd: I was thinking to get 8 of theses but is it too much 100,000uf per rail (for aleph 5) ?

thank
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Old 7th February 2007, 04:20 PM   #7
Buhl is offline Buhl  Denmark
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I would go for the Sprauge Caps, and I would put as many in as can fit in the cabinet - capacitance is on of the few things ou cannot have to much of...

Caps have been discussed over and over in here - size, make, configuration, C's L's and so on - try and give the search function a try......

Cheers !
Buhl
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