DIYHiFi.org

I thought it was becasue I knew Phred.

As for help..............I don't have time, and won't until it cools down.

Like in November.

Jocko

That probably doesn't help.

Read some of the links and develop some skills. There is plenty of usable imformation for the novice in these post and links. I know enough not to just throw suggestions for specific caps off the top of my head. You won't learn anything and be denied the satisfaction of experimenting with different caps in your circuit and developing some insight into how decoupling works. If this is not the path for you try going to Google and typing "best sounding electrolytic caps" or doing a search on one of the many audio forums out there. You will find the subject of which capacitor to use has been discussed to death and there are many opinions.


CG You say geek like it is a bad thing.... I play a game with my wife by holding up a component and asking resistor, inductor, or capacitor? She hates it and still guesses wrong after years of me doing this. She retaliates by practicing the clarinet after I go to bed. By the the way I am a babe magnent...... ask Jocko.

_________________
My evil self is at the door, and I have no power to stop it.

http://www.headwize.com/projects/showfi ... ey_prj.htm

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My evil self is at the door, and I have no power to stop it.

Most of the rf guys I know think that audio hobbyists are the geekiest of the lot.

As promised, here are some Panasonic FM impedance shots.
First, a comparison between a PanaFM 680uF /50V and a Samsung [spell: a good generic] 1000uF /63V.
Consider that the higher voltage and value favors the Samsung ESR -wise.
Obviously, the cap going lower is the Pana.

Here it's a comparison between
a PanasonicFM 680uF /50V and a PanaFM 680uF /35V

Another comp. between a PanaFM 680uF /50V and a PanaFm 470uF /50V

PanaFM 680uF /50V against PanaFM 220uF /50V

PanaFM 680uF /50V against PanaFM 680uF /10V

PanaFM 680uF /50V against PanaFM 220uF /10V

PanaFM 220uF /10V against an Oscon 10uF /16V

PanaFM 220uF /10V against a generic Nichicon 220uF / 25V

That's all what I have of FM types, for now.
I hope it's visible why I said that in the higher value ranges also the more generic type capacitors have already reached the "magic" ~ -60dB [20 -25 mOhm] ESR value level. At this level lead & trace lengths, soldering quality counts more than the cap's ESR itself. So no extra help from a Pana, really.

But what is really good is that this ESR level do not change drammatically as we go downwards into low voltage territory, and that is new for me, at least..

Hope it's also visible how good it stands up against an Oscon..
And how "bad" is that generic Nich. 220uF referred to the Pana.

Ciao, George

George, not wanting to abbuse of your time (and great work btw), do you happen to have some Rubycon ZLs around?

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Carlos Filipe

"Any intelligent fool can make things bigger, more complex, and more violent. It takes a touch of genius - and a lot of courage - to move in the opposite direction." Albert Einstein