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Wurth brand capacitors seem to be good value for the money

One time I saw a remark on the diy (not AK) forum one member mentioned the sleeves on one type of Wurth cap looking the very same as a CapXon sleeve having the text "vent" on the cap. Indeed, why would a manufacturer put "vent" on the sleeve of a little cap....I do not see a reason for that. Still, as Wurth is a big supplier they may have bought factories and will have their quality measures.
 
For what it's "worth", Wurth offers the best specs at the lowest price for those following the specs (in audio). I would personally use them for anything besides audio as they're very competitively rated. I was not impressed with the way sounded and removed all of them and no longer buy them even though they were the best deal out there and I wanted them to sound as good as other alternatives I had been using. They look nice. Although it doesn't necessarily mean anything, they are made in China even though it's a German company. If you don't believe me, look for a symmetrical stereo circuit inside your equipment and recap one side with Wurth and the other with UES Muse or RFS Silmic II and see which side sounds better.
 
onanysunday said:
For what it's "worth", Wurth offers the best specs at the lowest price for those following the specs (in audio). I would personally use them for anything besides audio as they're very competitively rated. I was not impressed with the way sounded and removed all of them and no longer buy them even though they were the best deal out there and I wanted them to sound as good as other alternatives I had been using. They look nice. Although it doesn't necessarily mean anything, they are made in China even though it's a German company. If you don't believe me, look for a symmetrical stereo circuit inside your equipment and recap one side with Wurth and the other with UES Muse or RFS Silmic II and see which side sounds better.
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They are power supply capacitors.
 
I have yet to see any pictures on AK of amplifiers recapped having a lot of capacitors of one some brand at one channel and another brand at the other, as a test.

I think a lot of those tests are imaginary. In case there are differences, everything stereo can not be assessed anyway.

Of course, I may be mistaken and I have to look better.
 
I said that the Wurth caps are power supply caps, and I stand by that. However, I did use some 4700uF (IIRC) Wurth caps as output capacitors on a Marantz 1060 as part of a full restoration, and I would swear it was the best sounding 1060 I've ever had. Seems like I used some on the outputs of a 2015 with equally pleasing results as well.
 
Of course they would say that, and of course makers with "audio" lines will disagree because they make extra profit on that.

I'd frankly be extremely surprised to learn that any of the major maker's audio cap line is actually something other than one of their regular models with a different sleeve and a higher price tag.
 
El Rubio said:
What makes them “power supply” caps?
This is what Wurth says:
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I generally prefer to use low-leakage (low leakage electrolytic or film) caps in signal path applications. The Wurth caps are low ESR and have good ripple rating, but aren't low leakage. Great for power supply filtering.

gadget73 said:
Of course they would say that, and of course makers with "audio" lines will disagree because they make extra profit on that.

I'd frankly be extremely surprised to learn that any of the major maker's audio cap line is actually something other than one of their regular models with a different sleeve and a higher price tag.
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Some Nichicon and Elna "audio" caps have non magnetic leads, I'm assuming copper, rather than the typical steel. There may be other differences as well.
 
The one consistent thing I've found in e'lytics that makes them sound better is whether they are bi-polar, and whether they use copper-clad leads. Those are substantive differences aside from general-purpose polarized types.
 
El Rubio said:
What makes them “power supply” caps?
This is what Wurth says:
Click to expand...
This is an interesting link. I don't see where it says all Wurth caps are power supply capacitors? I've only used them in values from 22uF to about 330uF which I wouldn't consider power supply size, but the link indicates all capacitors are "audio capacitors". While all capacitors could be used for audio, many shouldn't be because they perform much worse than others. Some takeaways from Cyril Bateman's work is that (slccs) single-layer ceramics have no place in audio and are only used because they're cheap and readily available, and polarized e'lytics perform worse for audio reproduction than their bi-polar counterparts, even though the static measurement specs they give us on datasheets to judge them against one another would not indicate this because the more impactful tests and parameters that show how a cap performs under load dynamically in real-time listening is left out or not measured from the data we have available to compare them.
 
I wish I had known about this company earlier.
Wurth even makes a cap with a threaded positive lead coming out of the center of one end. When I restored that Russian guitar amp for my son it had the same syle caps in the power supply and voltage doubler.
Surplus Russian caps were used. I removed them and drilled out the mounting holes for standard two lead radial caps. But the similar style Wurth caps would have worked nicely with much less work to install.
The last picture is the Wurth cap laying on its side that would have been great to have used instead.
 

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Lavane said:
I wish I had known about this company earlier.
Wurth even makes a cap with a threaded positive lead coming out of the center of one end. When I restored that Russian guitar amp for my son it had the same syle caps in the power supply and voltage doubler.
Surplus Russian caps were used. I removed them and drilled out the mounting holes for standard two lead radial caps. But the similar style Wurth caps would have worked nicely with much less work to install.
The last picture is the Wurth cap laying on its side that would have been great to have used instead.
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I'm reasonably certain that the mounting stud is connected to the case.
 
I have always used Wurth (non electronic) products, simply because every product with their name on it is beyond reproach, regardless of which country it is manufactured in.
Pricing is at the high end, but if you need a top quality product and would rather spend a bit more money than a lot more time dicking around, go with Wurth.
Their TIME-SERT thread repair products are incredibly good.

Actually only started using their electrolytics a few years back, for several price sensitive jobs that required very large quantities of caps. My initial part screening had me scratching my head; this good at this price? Wow, now that's good value for money! :D
 
arts said:
I have always used Wurth (non electronic) products, simply because every product with their name on it is beyond reproach,
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i used a lot of their epoxies and seam sealers and such in bodyshops for 25 years.

always good stuff.

i have not tried their caps as of yet but i have some coming with this mouser order.

i should have been trying them out earlier with nichicon ditching their smaller sized caps and all....
 
Lavane said:
I wish I had known about this company earlier.
Wurth even makes a cap with a threaded positive lead coming out of the center of one end. When I restored that Russian guitar amp for my son it had the same syle caps in the power supply and voltage doubler.
Surplus Russian caps were used. I removed them and drilled out the mounting holes for standard two lead radial caps. But the similar style Wurth caps would have worked nicely with much less work to install.
The last picture is the Wurth cap laying on its side that would have been great to have used instead.
Click to expand...
I think just about all major cap manufacturers make such screw mounting caps? Plenty of them in high power applications.
 
gslikker said:
I think just about all major cap manufacturers make such screw mounting caps? Plenty of them in high power applications.
Click to expand...
I hadn't run across them before, I wish I had seen some. The originals in that amp were old Russian mil spec. Heck, they were past there prime when they were used in those amps that were built in the 80's. That kind of surprised me since everything else in that amp had quality parts. There isn't much on that brand and they were only made for a couple years. I did find a couple different repair posts on the interwebs though. And one of the new owners found axial caps used to replace the original caps. I finely found a guitar repair sight where the tech posted a few pictures of one he repaired. He used radial caps like I did. He was also very helpful in explaining how to properly bias these amps. The original caps had dried out seals, and a few were bulging.
 
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