While they last...

Hello, this is a fake, not a NOS. Believe me, I know what they are. They are refurbished and processed by electroplating. Their original identity is 183, not 182, and not 51. I have rich experience, know They are electroplating.
In China, there are many suppliers who steal my photos. At first they upload my photos, and then they mark cheap prices, attract customers to buy, and actually ship them.
This product is printed with other models For fonts, if they use 183, users who are generally less demanding can use it.
According to my experience, this appearance is only 182, 51, 183, 2SD646, but 182, 51 in the Chinese market is very rare. ,
The supply of 183 still exists, but the Chinese do not like to use 183. They agree with the articles on the forum and like 182, 51

Dear Pras,
Many thanks for the valuable information, it supports me in a great extent.
I hope so, You and the Girls are O.K.! 🙂

But I afraid, fake sellers will be angry to you!
 
I just bought a curve traced matched quad as well. If it turns out they are not well matched, I will let him know. He is a very reasonable guy to deal with.

The data he print is made with his curve tracer , differences in your curves is probably because
your are not the same DUT voltage , current test condition.
 

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So, I've made a new proposal:

"Refund US $ 206.32
Comments:
I learned from a sure source that these are really fakes, and how this fake-sellings works.
So forget my previous offer, I want back all of my money.
If you want it back these fakes, you are the one, who must to pay postal fee as well.

Regards,
Gyuri"
 
Do not fret, there are more precious bottles to replace it if it were to take the plunge.

Here are low Ids, high Vds curves for THF-51S. I cannot provide high Ids, low Vds as this is a tube tracer. Perhaps not very useful from a design standpoint, but maybe it will interest someone 🙂

THF-51S.png
 
Can't believe I did this...

Well.... As the title states...

In a zombie like haze the "Buy it Now" button has been pressed. Two roughly matched THF-51S SITs are inbound.

Hard to imagine my Dual Mono Aleph J may someday sit on a shelf collecting dust. Come to think.... I never thought my painstakingly built point to point 300B amp would be relegated to a closet, but that has come to "Pass".

Need to start a "Pass Builders Anonymous" Thread.

Hi, my name is Citation19.....and I build ......
 
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Yup.

First, we have to accept is that we are powerless to deny our search for psychoacoustic bliss.

Second, we've come to believe in a power greater than Class A/AB or D to restore us to sanity. (Class A)

Third, that we are slaves to the groove.

😀
 
News:
Fake seller gave me a Proposal:Return goods & refund US $ 206.32
I will accept it only that case, if he sent back my money+postage fee.
I will ask it at the post office, how much it could be?

This is now a matter of principle for me.
And I'm stubborn in things like this like a mule.
(Just as in other things as well.)