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Old 27th September 2003, 08:58 AM   #1
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Default Rubycon capacitors

The original capacitors in my Onix amp were 4 rubycon 25x40 (CEW) 63v 4700uf (M) +85 C.

I replaced these with Panasonic 50v 6800uf caps but have a nagging feeling i could have fitted better caps.

The maximum size i can fit is 25x50 and i can safely go down to 50v.

Can anyone recommend a better cap ?

What about these? Rubycon.
I was thinking about useing the 25x50 63v, 6800uf, (USR series) Ripple current 4.41
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Old 27th September 2003, 01:48 PM   #2
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I have the feeling that the panasonics are in fact better...
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Old 27th September 2003, 03:16 PM   #3
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[QUOTE]Originally posted by li_gangyi
[B]I have the feeling that the panasonics are in fact better...
-----------------------------------------------------------

Not so; some Rubycons are very good. The Panasonics actually have middling tan deltas.
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Old 27th September 2003, 03:30 PM   #4
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What are the necessary specs for a cap to be considered good...??105deg operation??
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Old 27th September 2003, 03:35 PM   #5
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Quote:
Originally posted by li_gangyi
What are the necessary specs for a cap to be considered good...??
It's in the sound, man - the sound
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Old 27th September 2003, 03:37 PM   #6
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Okie...since these caps are not likely to be in the signal path...how do they affect the sound??
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Old 27th September 2003, 03:43 PM   #7
JDeV is offline JDeV  South Africa
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Quote:
...how do they affect the sound??
How - they do it do not know, but everything affects the sound. I was recently told that I must remove the EMI filter unit from my mains supply, then my amp will sound better. Why, don't know. Did not try it yet. It is the same question, why use a $40 Elna cerafine in the heater supply of a tube amp, but it does sound better. If you think about it, the volts that come from your wall socket, are the same ones that go into your speaker, it just gets shaped a little in between
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Old 27th September 2003, 03:56 PM   #8
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[QUOTE]Originally posted by fmak
[B]
Quote:
Originally posted by li_gangyi
I have the feeling that the panasonics are in fact better...
-----------------------------------------------------------
The Panasonics actually have middling tan deltas.
What do you mean by that?
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Old 27th September 2003, 04:28 PM   #9
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Default Where do you get the Rubycons?

They are not available from Digikey, Mouser or Parts Connexion. Rubycon Japan does not list distributors so... sources anyone?

:)ensen.
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Old 27th September 2003, 04:29 PM   #10
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for my part on bing better...it's definetly as "cheapskate" as a "standard" rubycon...nto that I have anything against them...but I have seen some rubycon's popping on motherboards...they leak...and buldge...
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