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Old 2nd March 2013, 03:40 AM   #21
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Quote:
Originally Posted by jacco vermeulen View Post
The main reason to parallel small electrolytic capacitors instead of one biggy.

Which one mainly does with class AB power amps, or e.g. preamps.
In class A power amps, big cans are preferable, as total uF value is the primary target (and large ones have a better/higher uF/volume ratio)

(e.g. Classé, Sphinx, AVM, Swiss Physics, Orpheus)
Hoi Jacco!

It's for the use in an Integrated amplifier Yamaha, rated 85Wrms.

I have already decided to replace the 2 main big cans of the old 12,000uF 63V with fresh new 4x 3300uF 100V Nippon Chemi-com high ripple current, having a total of 13,200uF 100V higher ripple current reservoir capacitance per rail. It will make things much easier, better and faster for the signal path.

Other than that, it's much cheaper than buy 2 cans of 15,000uF and much efficient.

Regards to all!

Last edited by Karl vd Berg; 2nd March 2013 at 03:44 AM.
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Old 2nd March 2013, 12:50 PM   #22
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It gets even better.

$/(uF x Vrated) is somewhat of a constant (margin) for a brand series.
Buying 1 or 100 differs by over a third in price/pc.

A DIY who builds a couple of power amps may be cheaper off to get 100 of 2200uF caps, than 10 of the same type in a 22.000uF value.

(back in the '80s, I calculated every imaginable ratio number of just about every amp part. call me a numbers freak)
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Old 3rd March 2013, 03:16 AM   #23
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Quote:
Originally Posted by jacco vermeulen View Post
It gets even better.

$/(uF x Vrated) is somewhat of a constant (margin) for a brand series.
Buying 1 or 100 differs by over a third in price/pc.

A DIY who builds a couple of power amps may be cheaper off to get 100 of 2200uF caps, than 10 of the same type in a 22.000uF value.

(back in the '80s, I calculated every imaginable ratio number of just about every amp part. call me a numbers freak)
Something in Europe can be found here:
Roederstein :: Electrolytics :: Capacitors :: Passive Components :: Electronic Parts :: Banzai Music GmbH

And for Jacco, we now have also this supplier in Amsterdam:
EOO - ElectronicaOnderdelenOnline
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