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theOracle replied to Any more info on counterfeit Nichicons?

in General Capacitor Questions & Issues

08-26-2021, 05:33 PM
Re: Any more info on counterfeit Nichicons?

The trick to low cost shipping is to order in bulk, that way you can split the shipping cost across hundreds of capacitors - round up everything you own that needs to be recapped, and everything your buddies own, and put together a big order, and shipping will be not much more than a tiny order! - and very small amount per capacitor! ...

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theOracle replied to Any more info on counterfeit Nichicons?

in General Capacitor Questions & Issues

08-26-2021, 05:30 PM
Re: Any more info on counterfeit Nichicons?

You have no chain of custody, everyone on ebay selling fakes always says theirs are from authorized distributors, maybe authorized Chinese fake cap distributors!...

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theOracle replied to Any more info on counterfeit Nichicons?

in General Capacitor Questions & Issues

08-26-2021, 12:03 PM
Re: Any more info on counterfeit Nichicons?

No, do NOT do this - in 2021, if you are not buying your capacitors DIRECTLY from the manufacturer's authorized dealer (as specified on the capacitor manufacturer's website) then you are buying cheap Chinese counterfeit fake caps, made to look exactly like high quality Japanese.

this applies to caps on ebay, on amazon, on some website, from some guy in Belarus, from a your friendly local electronics store, wherever!!

There are TWO TYPES of capacitors in 2021, those at the manufacturer's authorized...

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theOracle replied to Any more info on counterfeit Nichicons?

in General Capacitor Questions & Issues

08-26-2021, 04:20 AM
Re: Any more info on counterfeit Nichicons?

Hello from USA - sadly, although these capacitors are poorly made counterfeit, you can no longer go by looks - because I have seen some fake counterfeit Nichicon and other counterfeit Japanese capacitors which look perfect and genuine. The only way to ensure you are getting real genuine Nichicon is to order from authorized distributor - but here is the good news, the largest authorized Nichicon dealer in USA has an office for Belarusian customers also!! - DigiKey is the largest and most respected capacitor distributor in America and in...

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theOracle replied to NAD T753 revisit

in Troubleshooting Audio Equipment

07-23-2018, 08:17 PM
Re: NAD T753 revisit

thanks for posting this thread! - about to recap my NAD 326BEE integrated amp in order to get rid of the crappy KSC caps and put first-tier Japanese in - Rubycon, Chemi-con, Nichicon, Panasonic, ELNA, and Toshin Kogyo are the only electrolytic cap brands I will let into my equipment!

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Last edited by theOracle; 07-23-2018, 08:19 PM.
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theOracle replied to Need help on Fluke 87-III mainboard repair

in Equipment Usage, Soldering, Techniques, and Reviews

10-14-2016, 10:11 PM
Re: Need help on Fluke 87-III mainboard repair

thanks for EEVBlog pics - that is exactly the meter I have!

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Last edited by theOracle; 10-14-2016, 10:19 PM.
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theOracle replied to Need help on Fluke 87-III mainboard repair

in Equipment Usage, Soldering, Techniques, and Reviews

10-14-2016, 09:59 PM
Re: Need help on Fluke 87-III mainboard repair

I have a rule on new equipment procurement:

no schematic, BOM, component locator diagrams, and calibration procedure = NO SALE! ...

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theOracle replied to Need help on Fluke 87-III mainboard repair

in Equipment Usage, Soldering, Techniques, and Reviews

10-14-2016, 09:56 PM
Re: Need help on Fluke 87-III mainboard repair

what is significance of S1G ?

and are my selections at Digikey ideal?

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theOracle replied to Need help on Fluke 87-III mainboard repair

in Equipment Usage, Soldering, Techniques, and Reviews

10-14-2016, 09:42 PM
Re: Need help on Fluke 87-III mainboard repair

I don't want to even say what I think of that, given the $$ we engineers and techs have spent on Fluke over the years, but [B]pathetic [/B]is not a strong enough word.Re: Need help on Fluke 87-III mainboard repair

I don't want to even say what I think of that, given the $$ we engineers and techs have spent on Fluke over the years, but [B]pathetic [/B]is not a strong enough word.Re: Need help on Fluke 87-III mainboard repair

I don't want to even say what I think of that, given the...

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theOracle replied to Need help on Fluke 87-III mainboard repair

in Equipment Usage, Soldering, Techniques, and Reviews

10-14-2016, 09:23 PM
Re: Need help on Fluke 87-III mainboard repair

I think if I could just find a service manual for 87-III and a case perimeter seal and a battery door, I would be all set!

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theOracle replied to Need help on Fluke 87-III mainboard repair

in Equipment Usage, Soldering, Techniques, and Reviews

10-14-2016, 09:19 PM
Re: Need help on Fluke 87-III mainboard repair

here are my candidates: (based on Fluke 87 info, not 87-III)

for the [URL="http://www.digikey.com/product-search/en?keywords=DF01M-ND%20"]bridge rectifier chip[/URL]

for the [URL="http://www.digikey.com/product-detail/en/fairchild-semiconductor/S1M/S1MFSCT-ND/965721"]diode[/URL]Re: Need help on Fluke 87-III mainboard repair

here are my candidates: (based on Fluke 87 info, not 87-III)

for the [URL="http://www.digikey.com/product-search/en?keywords=DF01M-ND%20"]bridge

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theOracle started a topic Need help on Fluke 87-III mainboard repair

in Equipment Usage, Soldering, Techniques, and Reviews

10-14-2016, 08:25 PM
Need help on Fluke 87-III mainboard repair

Hi there!

I replace caps for a living, but recently decided to try and fix a multimeter I picked up at a yard sale:

Fluke 87-III

It is in surprisingly good shape, needs a new battery door and case perimeter seal, seller told me it was operating intermittently.

so I took it apart and two components are burned which I believe are the following:

U1 - diode, SI, rectifier, bridge (4 pin chip) -burned beyond recognition (on regular 87 - this chip is BV=50V, IO=1A, p/n [URL="http://www.digikey.com/product-search/en/discrete-semiconductor-products/diodes-bridge-rectifiers/1377580?k=DF01M&k=&pkeyword=DF01M&pv1291=1485&mnonly=0&newproducts=0&ColumnSort=0&page=1&stock=1&quantity=0&ptm=0&fid=0&pageSize=500"]DF01M[/URL]...

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Last edited by Per Hansson; 10-15-2016, 01:57 AM. Reason: Offsite image uploaded
theOracle replied to Any more info on counterfeit Nichicons?

in General Capacitor Questions & Issues

05-22-2015, 02:20 AM
Re: Any more info on counterfeit Nichicons?

I see nothing in your photos that looks incorrect about these caps - and I have been using these for a long time!

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theOracle replied to Need help identifying these caps!

in General Capacitor Questions & Issues

02-12-2015, 12:14 AM
Re: Need help identifying these caps!

leaning over "o" symbol is definitely Nichicon, look at the datasheet linked to in post#2...

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Last edited by theOracle; 02-12-2015, 12:16 AM.
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theOracle replied to Need help identifying these caps!

in General Capacitor Questions & Issues

02-11-2015, 11:59 PM
Re: Need help identifying these caps!

Here is what I am unclear on, I can see now that these are definitely Nichicon, and I see the high temperature marking, but how do you know they are the UX series, it seems like there are about 20 different Nichicon chip-type SMD electrolytic series - how do you identify the series? - like why couldn't these be UD series, for example?

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theOracle replied to Need help identifying these caps!

in General Capacitor Questions & Issues

02-11-2015, 11:39 PM
Re: Need help identifying these caps!

I have a stock of very high quality low-ESR, 105C, through-hole caps from the manufacturers at the bottom of my signature and considering replacing these with them!

by the way, your date decoding jives!

everything else on this board is super high reliability, that is why I suspect the caps
"it's always the caps" as the saying goes (lot of truth in that saying)

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theOracle started a topic Need help identifying these caps!

in General Capacitor Questions & Issues

02-11-2015, 11:02 PM
Need help identifying these caps!

what amount of capacitance are these and what brand and what type?
and are they a type that has been known to fail?

they are about ~12 years old.

I am assuming the 4 in the top pic are 100 uF and 35V
and the one on bottom appears to be 47 uF and 50V

so I guess my main question is what brand and type are these and are they low ESR and especially, are they known to fail much? - I do not see any visual signs of failure, but I am suspecting them.

...

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Last edited by theOracle; 02-11-2015, 11:49 PM.
theOracle replied to bad caps of the 1990's played havoc with car ECU's

in General Capacitor Questions & Issues

12-16-2014, 10:34 PM
Re: bad caps of the 1990's played havoc with car ECU's

an even more important reason to avoid ebay, is that it is not just enough to get one of the 4 high-end brands of caps listed in my sig, but you must have [B][I]chain of custody[/I][/B] due to there being so many counterfeits out there.

I decide on a brand of capacitor that meets the spec I am seeking in order to fix an ECU, then I go to the manufacturer's website and look at their list of authorized distributors and only source from those sources - you would not believe the good fakes I have seen on ebay, even...

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theOracle replied to bad caps of the 1990's played havoc with car ECU's

in General Capacitor Questions & Issues

12-12-2014, 05:01 AM
Re: bad caps of the 1990's played havoc with car ECU's

hello from Club Lexus! - it's me, LSCowboyLS who wrote the original thread

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theOracle replied to what is the correct way solder a coin battery?

in Equipment Usage, Soldering, Techniques, and Reviews

11-17-2014, 04:30 AM
Re: what is the correct way solder a coin battery?

no, it is basically similar to a CR2032

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