More Fake NKT275s

Schematics, layouts & other technical mumbo jumbo.

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vanguard
Posts: 464
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Re: More Fake NKT275s

Post by vanguard » Thu Jul 11, 2019 3:49 pm

It does appear we've reached the proverbial bottom of the barrel with NOS transistors bearing classic part numbers.

I bought a load of Mullard OC81M on eBay recently that turned out to be fake. The sleeves looked perfect. Fucking annoying, man.
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The Captain
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Re: More Fake NKT275s

Post by The Captain » Fri Jul 12, 2019 1:39 pm

vanguard wrote:
Thu Jul 11, 2019 3:49 pm
I bought a load of Mullard OC81M on eBay recently that turned out to be fake. The sleeves looked perfect. Fucking annoying, man.
Well that fucking sucks, man! So the sleeves were placed over some other transistor type?!?
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vanguard
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Re: More Fake NKT275s

Post by vanguard » Fri Jul 12, 2019 6:10 pm

The Captain wrote:
Fri Jul 12, 2019 1:39 pm
vanguard wrote:
Thu Jul 11, 2019 3:49 pm
I bought a load of Mullard OC81M on eBay recently that turned out to be fake. The sleeves looked perfect. Fucking annoying, man.
Well that fucking sucks, man! So the sleeves were placed over some other transistor type?!?
Yep. You could barely tell, but I had some confirmed real ones to do side-by-side. They also performed consistently like shit despite a wide range of specs--that's what got me investigating in the first place. First time I've been burned, though, so I guess I'm lucky in a sense.
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