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Old 9th May 2004, 07:46 PM   #11
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Default Re: Fake Elna Elcos

Quote:
Originally posted by kpee
Having worked for Rubycon for 10 years
I bought some BG F series caps recently (1000/35) , and it seems like not standard cap comparing to current BG line. Would you know anything about those?

It is the same size as 1000/50 STD, but has 3 pins.
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Old 9th May 2004, 08:24 PM   #12
grataku is offline grataku  United States
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Annex,
that's one instant classic! I m glad you posted it since I had missed it.
I bet whoever used them caps found prodigious improvement in the sound.

Kind of reminds me of some caps I bought awhile ago where, upon shaking, you could feel, and hear, stuff moving inside.
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Old 10th May 2004, 02:12 AM   #13
karma is offline karma  Canada
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more classic than fake
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Old 10th May 2004, 07:46 AM   #14
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Quote:
Originally posted by grataku
Annex,
that's one instant classic! I m glad you posted it since I had missed it.
I bet whoever used them caps found prodigious improvement in the sound.

Kind of reminds me of some caps I bought awhile ago where, upon shaking, you could feel, and hear, stuff moving inside.




Sounds like they may be dodgy ones too.

It's worrying enough that the capacitance rating used on the inner cap. on the photo I posted was lower than that printed on the fake casing, but the safe working voltage is also lower - which could potentially lead to any number of dangerous situations, shorts, etc.


Another disturbing story I have heard told amongst the DiyAudio enthusiasts is that of fake transformers!

I believe it was posted that a large, "un-named" company sold power amplifiers using large transformers that appeared to be potted toroids - i.e. large, heavy and plastic coated. One DIYer in his wisdom/curiosity (??) decided that he would cut one of the transormers open only to find a small EI core transformer and a lot of sand!

Shocking!
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Old 10th May 2004, 01:48 PM   #15
kpee is offline kpee  United Kingdom
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Default It is the same size as 1000/50 STD, but has 3 pins.

Blackgates are a puzzle as Rubycon will not let them be sold outside japan and should have stopped suppling production quantities 2 or 3 years ago.

Rubycon is only making these under license and the case sizes and specifications are dependent on what is required by the OEM who originally ordered the item. So there are many variations of case size and pin out for the same capacitance and voltage rating
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Old 19th March 2005, 02:29 AM   #16
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Default This is not a fake

HI,
I have bought this from a surplus dealer. The famous Epcos cap.
Its dimensions are all the same as written in the official datasheet, but its weights 120g less. It 's like 250g rather than 420g. I charge it for a minute with 520vds which is 70vdc higher than its design. It is fine with that voltage. It's capacitance is also correct. If it is a fake, must be a very good one. Is there anybody knows a easy way to test ESR?
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Old 19th March 2005, 03:02 AM   #17
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Picture of real Elna 10000 63v
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Old 8th November 2006, 10:25 PM   #18
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Doh, I wish I had seen this thread before i bought these:

http://cgi.ebay.co.uk/ws/eBayISAPI.d...m=230042394101

I hope they turn out to be real. I also didn't realise the seller was in china until I had already paid. I'll have to test the capacitance once they arrive I guess.

Also, are rubycons made in the USA? I thought they were made in Japan?
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Old 9th November 2006, 03:09 AM   #19
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Yet another reason why I'm sticking to ordering from Mouser, Digikey, and Apexjr.

At least I know my nichicon's are real. (Not much point in faking those!)
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Old 9th November 2006, 12:07 PM   #20
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Quote:
Originally posted by MikeHunt79
Doh, I wish I had seen this thread before i bought these:

http://cgi.ebay.co.uk/ws/eBayISAPI.d...m=230042394101

I hope they turn out to be real. I also didn't realise the seller was in china until I had already paid. I'll have to test the capacitance once they arrive I guess.

Also, are rubycons made in the USA? I thought they were made in Japan?
I have bought GLCD 128x64 from that seller (Sure electronics) and SMD resistors, both items were ok.

Please keep us updated.
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