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Fake transistors from eBay
Fake transistors from eBay
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Old 6th August 2020, 06:30 PM   #11
wiseoldtech is offline wiseoldtech  United States
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I never purchase parts off of ebay.
That's foolish if you depend on and insist on good quality.


There are plenty of reputable parts suppliers out there to choose from.
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Old 6th August 2020, 06:36 PM   #12
llwhtt is offline llwhtt  United States
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ESPECIALLY if they are current parts!

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Old 7th August 2020, 08:29 AM   #13
Kay Pirinha is offline Kay Pirinha  Germany
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Quote:
Originally Posted by duncan2 View Post
As you say Craig ON Semiconductor bought up the semiconductor division but so did NXP semiconductors (Dutch ) .
How could a company be bought by two different ones?
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Old 7th August 2020, 08:48 AM   #14
duncan2 is offline duncan2  United Kingdom
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Because NXP bought part of Motorola which was (a division ) of Motorola called Freescale Semiconductors Inc created by the divestiture of the semiconductor Products Sector of Motorola which merged into NXP Semiconductors .


So the original statement of only one company involved in the Motorola semiconductor buy -off is wrong.
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Old 7th August 2020, 08:54 AM   #15
dreamth is offline dreamth  Romania
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Quote:
Originally Posted by barbaroja View Post
So I got these to have the Bryston with the same transistors on both sides
8 Pairs | MJ21193 + MJ21194 PNP + NPN Silicon Power Transistor Original MOTOROLA 348643461001 | eBay
Only to find they were fake. there is a small piece of silicon inside, much different to the authentic ones. I had sparks, fire, nastiness all over. Hopefully the boards are repairable. Buyers beware.
Seller did refund, he might have been scammed when sourcing parts as well, just source your parts from reputable sources.
What a coincidence! I had this exact experience 17 years ago with fixing a Bryston 2x 300w amplifier with integrated mixer used by some local musicians on stage .I bought the fake ones first which were very cheap, then , after a month or so i had to buy the originals ON semiconductor version for 5 times more money...
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Old 7th August 2020, 12:40 PM   #16
thimios is online now thimios  Greece
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Quote:
Originally Posted by nfsgame View Post
Reichelt is big in selling fakes, too... They're claimed as Toshiba components for example but all you get is some ISC/... stuff...
Reichelt is big in selling fakes, too...
Unfortunately YES.
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Old 7th August 2020, 02:29 PM   #17
asuslover is offline asuslover  Romania
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Quote:
Originally Posted by Bonsai View Post
Oh dear. Never, ever buy semiconductors off eBay. There are dozens of stories like this on the forum. Luckily you can get your money back.

Buy off Mouser, Digikey, RS, Reichelt etc.

If the part is obsolete, get an equivalent.
I don't argue that but there are plenty of honest sellers on ebay , buyers just have to do more researches, if deals are too good to be true...don't fall for those and buy locally.
I do sell a lot of things on ebay , but their policy about the buyer is always right is not correct.
These are my transistors , bought from mouser/digikey a while back.
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Old 7th August 2020, 05:59 PM   #18
garrbage is offline garrbage  Canada
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Quote:
Originally Posted by JMFahey View Post
I am amazed that you expected anything else.
Same here in this day and age it still amazes me that people hope to get genuine popular audio parts of ebay for a fraction of the cost of the 1k price and out of production for a decade.
Quote:
Originally Posted by JMFahey View Post
I am amazed that you expected anything else.
EDIT:and high seller ratings mean NOTHING on EBay:
It still have some use For a sellers with sales numbers over 4 digits it is meaningful only in that last 1% from 99% to a 100%. I'm skipping sellers with feedback scores less than 99.3%. 98% and less means stay away at all costs If seller have lower feedback score and just couple of hundred sales, then I may look at the negatives to decide if it worth trying to buy from it (two thirds of the time it is not). But most of the time if the seller is from China, components will be fake with almost 100% certainty despite what rating seller has.
Also beware of components sellers pretending to be from US. I purchased once some MJL's from the seller with location listed somewhere in US but the shipment arrived late and by China Post Personal sales are quite different but that is entirely another story
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Old 7th August 2020, 06:07 PM   #19
nigelwright7557 is offline nigelwright7557  United Kingdom
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Buy cheap, buy twice.
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Old 7th August 2020, 07:34 PM   #20
daqvin_carter is offline daqvin_carter  United States
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The last time I bough fake transistors, you had to look in the back of some magazine or paper to order (maybe 1986).
Bought a few MJ2955/3055 pairs for maybe a dollar each, I noticed they were lighter than the originals and I managed to blow them up in some audio amplifier.
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