Are these NKT275s red dot real or fakes?

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peps1
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Re: Are these NKT275s red dot real or fakes?

Post by peps1 »

simonm wrote: Fri May 06, 2022 11:05 pm Brook - are there any date codes on your fakes?
Unfortunately, not. The only markings are the NKT the 275, messy red dots and hard to see, but harder to photograph markings left over from the original transistor they stripped off. Not all of that batch had visible original markings, but they came from the same place, so just wrote them all off.

If I remember correctly they all tested really high Hfe....but I should double-check that.

So, just double checked:
Hfe = 172
Hef = 144
Hef = 151
Hef = 174
Hef = 172
Hef = 10

Maybe the 10Hfe one is real :hihi:

Bugger me! 83 sold at £100 a pop on eBay.....going to buy myself a box of Hitachi TO-44 and a bottle of asatone :marx:
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Doc Holliday
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Re: Are these NKT275s red dot real or fakes?

Post by Doc Holliday »

I don’t know if these pics will be of any use but I’ve had a AM Beano boost from around mid noughties and a Cornell fuzz with NKT275’s.
Don’t know if they’re a good reference
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Doc Holliday
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Re: Are these NKT275s red dot real or fakes?

Post by Doc Holliday »

To my eye with the spacing between text and the top arch to the N they look identical.
Boddah
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Re: Are these NKT275s red dot real or fakes?

Post by Boddah »

Is the font used in the examples above the only font/style used by Newmarket?, I've got some coming where the body itself is very much the same, no flange on the bottom but are printed the other wah round, not top to bottom like above.
Thanks.
fuzzybeaver
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Re: Are these NKT275s red dot real or fakes?

Post by fuzzybeaver »

Can't really use analogman for examples of the real deal as I've seen many that had purple-ish base material which is known to Japanese transistors.
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Doc Holliday
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Re: Are these NKT275s red dot real or fakes?

Post by Doc Holliday »

I believe the mid 2000s stuff to be legit.
I’m sure Mr Castledine told me Mike bought up a big batch of the last of the NKT275’s at the end of the noughties.
Since then Stu struggled to get any so moved onto other transistors.
BKDevices
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Re: Are these NKT275s red dot real or fakes?

Post by BKDevices »

I appreciate all the pics people have posted in here.

As far as I'm concerned, the Langrex transistors are FAKE. And I don't mean relabeled at the factory. This is the set of 4 I got from them:
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I suppose the purple base one is the only one I can really say for sure is fake, but obviously the entire batch would be suspect due to that even IF the printing on the purple one looked different. But I see more similarities than differences here, and these all seem suspect to me even in isolation. The real later NKT275s which these are most similar to have larger printing. Meaning everything is scaled up a little bit. The N is closer to the bottom, and the T is closer to the top because of that, but the writing is all just noticeably larger.

On these Langrex ones, the 2 and 5 are bolder than the 7 which I don't see on any other NKT275s (at least to that extent), and the 5 is often wonky (tilted and shifted a few degrees). I could see that being the case if these were factory relabeled, but of course the purple base kills that thought for me. Anyway, you guys can judge:
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That was my first purchase from Langrex. I've heard that they're a reputable store, but in my opinion the onus is on them to make sure these are legit if they're going to be selling them for £100. If there was no purple base, I could understand them being fooled by these ones. But that should have been caught. I was lucky to get one like that actually. Although these do look suspect to me anyway, I wouldn't have been as sure without it. I'm sure a bunch of people bought these and didn't have any obvious signs they were fake.
simonm wrote: Wed May 04, 2022 10:33 pm plus if they were fakes they'd have more than 25 in stock...
I don't think that's a real value. I placed my order after this comment, and they have 24 in stock now (I bought 4). They also aren't listed in their stocklist at all, so I'd guess they're handling these a little differently. I'd guess they list a small quantity at a time so that it's not possible for one person to buy their entire stock. Or maybe they have 24 that have been confirmed operational, and they test more when someone buys some. Or maybe they just have 24, but I wouldn't take that number as a sign that they are not fakes.
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moose
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Re: Are these NKT275s red dot real or fakes?

Post by moose »

Interesting statement from Acid Fuzz re some fake/mojo NKT275s and others. Not sure how to embed a facebook post here so I'll just link tot he page.

https://www.facebook.com/acidfuzzpedals
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