Re: Help in finding few replacement capacitors
4.7uF @ 100V <-- I'd go with RX30 for those values
1000uF @ 50v <-- KY or ZLJ should do the trick
100uF @ 25v <-- RX30, YXF, YXJ, ZLJ etc
theokretes
Member
Last Activity: 11-02-2015, 01:22 AM
Joined: 07-16-2013
Location: AB
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Re: Why do people use TEAPO / YAGEO / G-LUXON?
Continuing with the phenomenon, terms 'inconsistent' and 'heat sensitive' are used a lot-- but is that actually true? As mentioned previously, I found these capacitors exploded in locations where heat was not an issue-- and they were screwing my analog synthesizer over due to voltage sensitivity-- which on a small scale example would mean you should NEVER use them in a PSU.
The problem with 'primaries' from TEAPO, OST and... Fuhjyyu are that the ripple tolerance is poor, they let excessive noise...Leave a comment:
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Re: Nvidia 790i Ultra Bad Caps Causing Problems?
Yeah that's something that always irritated me. There's a lot of counterfeit products sold on amazon that sellers complain about stating 'this is not a good brand', but it's not the brand but the counterfeit product...
I actually think those are genuine sanyos. The covers have the faded printing that you see on genuine ones. And OEMs typically have sources to genuine parts.
--> it seems like there's a lot of blame for OEMs using fake capacitors, when this is simply not the case...Leave a comment:
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Re: Nvidia 790i Ultra Bad Caps Causing Problems?
I wouldn't really recommend MCZ as they have unstable electrolyte like KZG and typically don't last very long. Some short out without signs of damage, but I haven't experienced that, just very vivid deaths.
MBZ or ZLH would be better alternatives (in my opinion).Leave a comment:
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Re: Why do people use TEAPO / YAGEO / G-LUXON?
Well there was a Lenovo motherboard I saw littered with failed exploded baby OSTs near some Rubycon MBZs that were fine... temperature was not a factor.
(I still attest that MBZ does not have a premature 100 hour rating like MCZ)
Actually I think I remember seeing that type a long while back. However, I'm pretty sure all of the green/gold TEAPOs have the circular bungs.
This is sort of the 'phenomenon' I wanted to explore with this topic: as there's...Leave a comment:
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Re: Why do people use TEAPO / YAGEO / G-LUXON?
Fuhjyyu in my opinion are possibly *the worst* capacitors. I don't think it's a matter of inconsistencies, but pure chance if they'll actually 'work' [I]as[/I] a capacitor.
OST always fail in situations where regular capacitors are still operating fine. Unacceptable.
So from what I gather, TEAPO is simply just left in things that aren't important. I'm not sure if I would go through the effort to purchase some though... especially since they seem to be more expensive that quality capacitors...Leave a comment:
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Re: Why do people use TEAPO / YAGEO / G-LUXON?
So if you did have something that was mission critical, would you still use TEAPO?
Also out of curiosity, how much did the TEAPO cap cost-- I'm buying some beefy GXes (to recap some vintage Marcons) that are going to cost me $40 in total....Leave a comment:
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Re: Creative CT5320B SoundBlaster MCV Recap (microchannel)
Well it's actually caused from a bung manufacturing difference. Some vintage capacitors hold the electrolyte in better than others. Panasonic for example made some terrible bungs 30 years ago. The rubber probably decomposed allowing the fluid to leak out....Leave a comment:
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Why do people use TEAPO / YAGEO / G-LUXON?
I've seen some posts where people are fine with having TEAPOs in their PSUs and other applications. Not to mention there was some warmth towards YAGEO (which is ran by TEAPO), and I would presume G-LUXON as a result, as TEAPO makes those as well. I've seen some folks seriously debate if TEAPO or Capxon was better... heh. That's like arguing evercon vs. fuhjyyu.
They are *terrible* electrolytics... they let excessive noise through (measurable either by watching your PSUs voltages or in audio applications where hum and hiss will penetrate), don't last very long, and never perform... -
Creative CT5320B SoundBlaster MCV Recap (microchannel)
Here's somewhat of an oddity that I recapped. It came with mostly Rubycon and a few Gemicons. All of the caps -- even the good ones -- were beginning to leak from their bungs, so everything was replaced. Unfortunately collectors don't know how to fix these cards and leave them in a catastrophic state.
A much better output section (overrated the 100uF decoupling cap to 220uF, there's only one due to the fact OPL2 is mono):
The Yamaha OPL2 chip originally had a sticker placed on top it for twofold reasons: #1 at the time a lot of OPL2 chips were... -
Re: SoundBlaster Pro 2.0 recapping
It's not necessarily audio-foolery, but as stated experiments with how different capacitors reacted. Using SILMIC or RX30 (which a lot of recappers haven't even heard of) are not typical general purpose capacitors...
[URL="http://www.digikey.com/product-detail/en/RFS-16V471MI6%235/604-1116-ND/2171167"]http://www.digikey.com/product-detail/en/RFS-16V471MI6%235/604-1116-ND/2171167[/URL]
As stated before, take a look at the size of the SILMICs for 470uF at 16v. That is absolutely huge, and the construction...Last edited by theokretes; 06-03-2014, 01:01 AM.Leave a comment:
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Re: SoundBlaster Pro 2.0 recapping
No blind tests required for the RX30s really-- they did reduce line noise and hum from my line gear and speakers (which otherwise had a bad hiss). Mind you, I overrated them slightly. OEMs will often underrate caps to save money.
I suppose I could have recorded a squealing pair of speakers and the aftermath, but it's really not worth the effort.
Any quality capacitor will generally lend a bit of "colour", SILMICs are very colourless in that regard, they're made specifically for 'monitoring' purposes, and if you...Leave a comment:
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Re: SoundBlaster Pro 2.0 recapping
Actually the tantalums should go at some point due to the potential of shorting out, but I'm too lazy at the moment.
Yes RX30 are high temperature capacitors, but they have the ability to enhance bass and miraculously silence line noise while preserving the high treble frequencies. Also, please keep in mind that when they are rated for 4000 hours, it's at 130C. Meaning... you'll get way beyond 8000 hours for them. I used them for various line-in mixers and speakers that have line noise or hum, and it virtually went away...Last edited by theokretes; 05-25-2014, 06:25 PM.Leave a comment:
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SoundBlaster Pro 2.0 recapping
Finished recapping the SB Pro 2.0.
I've discovered that RX30's best application is audio or PSUs. Further tests with some motherboards and, yeah, the MOSFETs just can't handle them. Although-- upgrading the MOSFETs may rectify that issue. Future project (maybe)
Creative Labs never used good vendors for capacitors, except in their budget cards that featured CQM (software emulation) instead of real FM... making them virtually useless in lieu of the better sound output *sigh*.
Anyways... the ELGEN and WINCAP electrolytics started to leak out of their bungs. I...Last edited by theokretes; 05-25-2014, 06:25 PM. -
Re: These Rubies genuine?
Topcat nailed the head on that one: various components purchased from china will work for a bit, but are extremely volatile and will prematurely fail at some point. Order from digikey or mouser, not ebay.
And for the record, some chinese counterfit products will explode your equipment if you dare try to use them.
These here: [URL="http://www.ebay.com/itm/1PCS-IC-FAIRCHILD-TO-100-CAN-10-UA726HC-/400613597638?pt=LH_DefaultDomain_0&hash=item5d466e61c6"]http://www.ebay.com/itm/1PCS-IC-FAIRCHILD-TO-100-CAN-10-UA726HC-/400613597638?pt=LH_DefaultDomain_0&hash=item5d466e61c6[/URL]...Leave a comment:
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Re: Bi Polar vs. Non Polarized Caps
I have some analog synthesizers that utilize bi-polar electrolytics in specific areas (assuming that the electrons must flow either way). I haven't been able to source replacements, and the only ones I could find were hideously expensive and marketed in audio applications (which I guess would make sense given that they are analog audio circuits). I'll have to browse digikey later.
Not many people even know that bipolar electrolytics exist if you ask them. Sort of like if you ask musicians about temperaments or 440Hz being introduced...Leave a comment:
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Re: KZG replacements - are there any?
Pretty much any capacitor can replace a chemicon KZG/Rubycon MCZ as both series have been manufactured with serious flaws and never performed to spec.
ZLH will work just fine.Leave a comment:
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Re: These Rubies genuine?
There have been a lot of sellers with fake rubycons. The easiest way to tell is look at the bottom of their bungs. Rubycon uses a very specific bung, whereas the knockoffs will use ones with a pattern that has circles (like on the bottom of TEAPOs).Leave a comment:
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Re: Intel D945GCLF Bloated Samxon GC due to overheating
Samxon capacitors are low quality: after I did a lot of research and analyzed a bunch of failed hardware sporting them I wouldn't even rate them so-so. Super high failure rate, poor filtering.
Interestingly enough, I had an intel atom board which [I]came[/I] OEM with samxons (along with other bad caps)-- I replaced them with some nice rubycons and ELNAs.Re: Intel D945GCLF Bloated Samxon GC due to overheating
Samxon capacitors are low quality: after I did a lot of research and analyzed a bunch ofLeave a comment:
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Re: Perc 5i raid card - SMT capacitor torn off
Yeah it doesn't surprise me the card still works without the ceramic capacitor. Ceramics have low uF in contrast to electrolytics.
If the via has been completely torn out, it might not be possible to get the capacitor back on properly.
Just buy a nice adaptec SAS card and be done with it. The OEMed LSI cards are always temperamental (I've had an LSI card randomly pop spindles on my 15K SAS, and it was intermittent, the card had no defects; another LSI card just has a bloody slow text BIOS. Don't get me started on...Leave a comment:
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