Hockey Puck SIT 2SK180 by Tokin source NOS

[Soundhappy]

@ Mcdm

Always verify option you *can get money back* is available if not genuine transistors from unknow vendors

This one in Japan is OK https://www.ebay.com/sch/watanabeto...Y8MAAOSwnbZYDFkx&rt=nc&_trksid=p2047675.l2562

 

[Soundhappy]

Datasheet of TM101-M Tokin.
Two SIT's in one package

 

[Zen Mod]

well, I don't have these ........

 

[Soundhappy]

One TM401 = four SIT´s = two balanced stereo channels Giant
Tokin TBM2000 = Darlington SIT crazy

 

[Soundhappy]

well, I don't have these ........

Exotica like for the Cabinet of Curiosities..
Bipolar Darlington SIT's

 

[Zen Mod]

wow!!

 

[Soundhappy]

Super rare pair on the market cost 500 Funny category SIT's

 

[woofertester]

Exotica like for the Cabinet of Curiosities..
Bipolar Darlington SIT's

I bought some Russian B-SITs. They do not curve trace as a triode.

 

[Soundhappy]

What is the reference name of this Russian B-SIT's ?

Power transistors need higher current and voltage capability curve tracer for example:
Locky_Z , Frankentracer or something like Michael Rothacher Tectronix
AudioMaker | DIY Audio Projects & More | Page 2
Always excelent video VLOG #1: Curve Tracer, Big VFET, SIT Modelling, Ironamp
Edit: add curiousities about GanSIT's

 

[Michael Rothacher]

The bSITs I tried were also pentodey. I'll see if I still have some and post the #.


KP959A

 

[Soundhappy]

Twice of joy Sir MR
Thanks a lot Best regards

 

[petoluk]

It's probably been posted somewhere round these parts already, but as stated on page 9 of the attached PDF, the BSIT (at least the Russian ones) have pentode-like characteristics ("...выходные ВАХ БСИТ, как и у традиционных БМТ, имеют пентодный характер." ==> "...the output I-V characteristics of BSIT, like those of traditional bipolar [power] transistors, have a pentode character.").

Furthermore, they are enhancement-mode / normally-off devices, as conduction when VGS = 0V is considered a drawback in their intended application ("Из-за нормально открытого состояния транзистор со статической индукцией имеет ограничения по применению в ряде радиоэлектронных схем. Транзистор со статической индукцией с нормально-закрытым каналом, так называемый БСИТ, предназначенный для работы только в биполярном режиме, не имеет данного недостатка..." ==> "Due to the normally-on behaviour, the use of SIT in various electronic circuits is limited. SIT with a normally-off channel, the so-called BSIT, designed to operate in bipolar mode only, do not have this drawback...").

The bSITs I tried were also pentodey. I'll see if I still have some and post the #.

KP959A

 

[Michael Rothacher]

I was a Russian linguist in my Army days.

 

[Nelson Pass]

Is there no limit to your talents?

 

[Michael Rothacher]

Hah!

Tinker, Tailor, Soldier, Spy. Master of none.

Now, if only I had somewhere to focus...

 

[maxlorenz]

Hah!

Tinker, Tailor, Soldier, Spy. Master of none.

Master of Self, perhaps?

Greetings,
M.

 

[Michael Rothacher]

That's a positive way to look at it.

Hi Max

 

[R-K Rønningstad]

Mike is a firm believer that many of life’s problems can be solved with Ohm’s Law, or at least he writes so in his profile. I happen to agree, Ohms law and the decibel works very well for me. (But keeping an eye on the skin effect now and then.)

 

[Soundhappy]

https://www.ebay.com/sch/watanabeto...9IMAAOSwRsJee2IC&rt=nc&_trksid=p2047675.l2562

Do KP959A show pentode curve because like Tokin this is two SIT's inside of one package connected in darlington configuration ?
What curves transfer is with two 2SK180 or 2SK182ES or THF-51S if darlington ? Or darlington of two Sony Vfet's ?

 

[Michael Rothacher]

I'll see if I have any curves at home. As I recall, it was like a little enhancement JFET.