Rubycon capacitors

fatmarley · 27th September 2003, 08:58 AM

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

li_gangyi · 27th September 2003, 01:48 PM

I have the feeling that the panasonics are in fact better...

fmak · 27th September 2003, 03:16 PM

[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.

li_gangyi · 27th September 2003, 03:30 PM

What are the necessary specs for a cap to be considered good...??105deg operation??

JDeV · 27th September 2003, 03:35 PM

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

li_gangyi · 27th September 2003, 03:37 PM

Okie...since these caps are not likely to be in the signal path...how do they affect the sound??

JDeV · 27th September 2003, 03:43 PM

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

Peter Daniel · 27th September 2003, 03:56 PM

[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?

purplepeople · 27th September 2003, 04:28 PM

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

:)ensen.

li_gangyi · 27th September 2003, 04:29 PM

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...

27th September 2003, 08:58 AM	#1
fatmarley diyAudio Member Join Date: Aug 2003 Location: Cheltenham	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

27th September 2003, 01:48 PM	#2
li_gangyi diyAudio Member Join Date: Jun 2003 Location: Woodlands Circle	I have the feeling that the panasonics are in fact better... __________________ Kids in the back seat cause accidents...Accidents in the back seat cause kids...

27th September 2003, 03:30 PM	#4
li_gangyi diyAudio Member Join Date: Jun 2003 Location: Woodlands Circle	What are the necessary specs for a cap to be considered good...??105deg operation?? __________________ Kids in the back seat cause accidents...Accidents in the back seat cause kids...

27th September 2003, 03:37 PM	#6
li_gangyi diyAudio Member Join Date: Jun 2003 Location: Woodlands Circle	Okie...since these caps are not likely to be in the signal path...how do they affect the sound?? __________________ Kids in the back seat cause accidents...Accidents in the back seat cause kids...

27th September 2003, 04:28 PM	#9
purplepeople diyAudio Member Join Date: Mar 2003 Location: London, Ontario, Canada	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. __________________ Those who claim to be making history are often the same ones repeating it.


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27th September 2003, 03:16 PM	#3
fmak diyAudio Member Join Date: May 2001 Location: London UK	[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.

27th September 2003, 04:29 PM	#10
li_gangyi diyAudio Member Join Date: Jun 2003 Location: Woodlands Circle	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... __________________ Kids in the back seat cause accidents...Accidents in the back seat cause kids...

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