Simulating SITs

[Michael Rothacher]

ZM asked me about this in the L'Amp thread and I've written up a mini article in case it should be of use elsewhere.

Look here: Audiohobby.com | DIY Audio Projects & More

 

[Zen Mod]

Merci beaucoup , Mr. MR

😉

one quickie question , but don't feel obliged to even think of it , if you didn't already messed with - had you any experience with 2SK60 ?

 

[Zen Mod]

btw. , shoot >sasica5@gmail.com< ;
have something , to reply with

 

[Michael Rothacher]

one quickie question , but don't feel obliged to even think of it , if you didn't already messed with - had you any experience with 2SK60 ?

I haven't tried those. No one has sent me any for proper disposal. 🙂

 

[generg]

Hi Mike, 😀

I tried to build the SK82 SIT with your text in my Multisim....

and I build the small test circuit of your homepage...

when I run the simulation occurs an error and the assistents says he does not know the parameter "KP" "Mu" "VCT"...etc.

I must say I am an baby in building parts and I suppose I did not find the subcategory "triode" in my MultiSim 11...

 

[Michael Rothacher]

Recopy the text from my blog Audiohobby.com | DIY Audio Projects & More. I was doing some editing in the wee hours. Sounds like you're missing a + in front of PARAMS.

The category matters not, I use the JFET symbol and wire the pins up in the component wizard, then you just paste the model text in.

 

[generg]

Thanks Mike for prompt answer! I will try tomorrow!

Bedtime....🙂

 

[Michael Rothacher]

Since many members use LTSpice, here's an example:

 

[Zen Mod]

how to make "hypotethical" model of counterpart ?

 

[Michael Rothacher]

Your wish is my command:

Audiohobby.com | DIY Audio Projects & More

 

[Zen Mod]

one day , when I grow up , I'll learn all these things !

 

[flocchini]

Merci beaucoup , Mr. MR

😉

one quickie question , but don't feel obliged to even think of it , if you didn't already messed with - had you any experience with 2SK60 ?

I have

VERTICAL FIELD EFFECT TRANSISTOR AND ITS APPLICATION
TO HIGH FIDELITY AUDIO AMPLIFIERS
BY
HISASHI SUWA, AUDIO DIVISION &
AKIYASU ISHITANI, SEMICONDUCTOR DIVISION
SONY CORPORATION
NEW YORK, NEW YORK
PRESENTED AT THE
51st CONVENTION
MAY 13-16, 1975

discusses 2SK60 and 2SJ18

The pdf is too big to upload but I can email it to anyone interested if you can accept a 1.5 MByte pdf

 

[flocchini]

to clarify I have the article not the experience

Best

Bob

 

[Zen Mod]

shoot at >sasica5@gmail.com<

I will place it in my Dropbox , so others will see it

 

[EUVL]

> I will place it in my Dropbox

Can you post a link ?


Thx,
Patrick

 

[Zen Mod]

as soon I get it

 

[generg]

I am better.....😀

thank you very much Mike!

I had to fight with the modelnodes, seems not to be the same as footprints..

 

[JimT]

Thanks for the LTSpice version.

Jim

 

[R-K Rønningstad]

Thank you for your efforts, Michael.
Your models seems good.
We DIYers do well to remember that capturing a nice schematics in e.g. LTSPICE and getting nice simulations is not at all all of the work. It only gives us a small hint that we are on the (hopefully) right path (towards audio nirvana ).

 

[flocchini]

shoot at >sasica5@gmail.com<

I will place it in my Dropbox , so others will see it

sent