Vishay Vs United Chemi-Con Filter Caps

markw51

Member
2006-12-02 1:18 pm
If you read the whole datasheet, United Chemicon caps I've looked up have a worse ripple spec at end of life than Panasonic, nichicon, rubicon, vishay. So the 2000 hours is probably worse than that.
If you want to save money, buy snap in caps instead of screw terminal caps. Put them on some nema CE board, glue them down, drill holes, solder to terminals on the bottom. Mount board on standoffs. You can also save by paralleling two 4700 or three 3300 instead of buying 10000 uf. Costs more time. I don't skimp on service life, I put parts store front shelf caps 4 times in my original power amp and that is too much rework.
 

Destroyer OS

Member
Paid Member
2005-11-14 11:09 pm
PNW
I know this will be frowned upon, but I have to say for someone that's wants objective reasoning... To say capacitors that measure completely different, one should expect completely identical results... And to be so anti-science to attempt unbiased trials... You're an egotistical quotient-challenged luddite.

Also your analogy is bad. It's actually like you don't know what the experience of falling will be if you wear various wind catching devices like squirrel suites. This is because we know both capacitors will supply capacitance in a normal electrolytic manner - your analogy would be applicable to wondering if the capacitor would act like a capacitor or not.
 

ubergeeknz

Member
2018-08-31 12:32 pm
What would alter the sound is the parameters - ESR, leakage (probably less so), dielectric absorbtion, etc. But only in so far as that impacts the stability of the power supply rails. There's no magic here, it's just that capacitors do not act like ideal capacitors in the real world.
 

Destroyer OS

Member
Paid Member
2005-11-14 11:09 pm
PNW
What would alter the sound is the parameters - ESR, leakage (probably less so), dielectric absorbtion, etc. But only in so far as that impacts the stability of the power supply rails. There's no magic here, it's just that capacitors do not act like ideal capacitors in the real world.

^ tis true.

I marveled how these small differences can be perceived so easily auditorly.
 
What would alter the sound is the parameters - ESR, leakage (probably less so), dielectric absorbtion, etc. But only in so far as that impacts the stability of the power supply rails. There's no magic here, it's just that capacitors do not act like ideal capacitors in the real world.

So you should be able to explain how these parameter effect SQ? They can all be modeled including leakage.
 
Oh dear, not this again! Plus, the dreaded 100% Blind ABX tests into the bargain!

Audiophool BS. Learn how a power supply works. Then learn how your amp uses it.

Well Chester, your opinion is quite clear and obviously, you don't find any difference between good quality and poor quality power supply capacitors in anything, power amps included, and 25 years as an EE in the recording industry/studio is enough confirmation that you're right and I'm just another misguided person/stupid fool (I do try to follow this sites Rule No 1!) that promotes expensive BS.

I think I understood your comments correctly, yes?

Now, everyone's entitled to their own opinion, but could you be a bit more polite about expressing it here.

You remind me of Stuart Yanager, another "BS evangelist" that used to brighten up our days with his absolute convictions about "Audiophools" and their expensive habits on the 'Snake Oil' thread.


Good morning Jeremy, hope you're "doing well"
 
Oh dear, not this again! Plus, the dreaded 100% Blind ABX tests into the bargain!

Audiophool BS. Learn how a power supply works. Then learn how your amp uses it.

Well Chester, your opinion is quite clear and obviously, you don't find any difference between good quality and poor quality power supply capacitors in anything, power amps included, and 25 years as an EE in the recording industry/studio is enough confirmation that you're right and I'm just another misguided person/stupid fool (I do try to follow this sites Rule No 1!) that promotes expensive BS.

I think I understood your comments correctly, yes?

Now, everyone's entitled to their own opinion, but could you be a bit more polite about expressing it here.

You remind me of Stuart Yanager, another "BS evangelist" that used to brighten up our days with his absolute convictions about "Audiophools" and their expensive habits on the 'Snake Oil' thread.


Good morning Jeremy, hope you're "doing well"

Thank you for putting me in with SY, a light in the pool of audiophool darkness. You dont find any difference either, if you did you could prove it.