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Old 9th January 2012, 05:44 AM   #1
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Location: Dona paula, Goa
Default 20 KHz specified on capacitor

I have these old saved capacitors. They r 680F/250V, and 20KHz IEff is mentioned on the body. Does it mean these capacitors can handle ripple of 20 KHz. How good r they as filter for a power amp.

Gajanan Phadte
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Old 9th January 2012, 06:11 AM   #2
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ahh... even google had no answer
There is always a first time....
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Old 9th January 2012, 10:43 AM   #3
DF96 is offline DF96  England
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Perhaps intended for SMPS use? Ripple current rating does depend on ripple frequency.
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Old 10th January 2012, 03:22 AM   #4
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Join Date: Jul 2003
Location: Dona paula, Goa
But one thing is sure. They sound good. I have connected them in parallel to the existing 20000F/63V Elna+16400F/175V Nichicon (IIRC).

After connecting these 680s, the amp has become musical. Was a bit dull before.

Gajanan Phadte

They r made by Phillips if that mis of any use.

Last edited by gmphadte; 10th January 2012 at 03:27 AM. Reason: added last line
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