SIT devices for DIY

Bigun · 02:48 AM

Any new hints on possible future availability of parts for us to play with ?

I was reminded of this when I was re-reading the nemesis article again today

"Also I have reason to believe that we will see some new SIT parts from a couple of sources in the coming year – parts that you should be able to actually buy.
You should probably start saving for them now... © 2011 Nelson Pass"

- if this is one of those 'annoying' questions that gets asked every few days please delete my thread !!

Alain Dupont · 14th September 2012, 11:45 AM

Hi,

Take a look at :

If You Don't Have a SIT, Fake It...

Bigun · 14th September 2012, 01:12 PM

Thanks for that - it's a fun thread to read.

It offers high input impedance, better than a naked PASS SIT, albeit with extra parts.

VladimirK · 11:18 AM

Russian KP926 high-voltage SITs are available still. Unlike Nelson's new SITs, that are better suited for genuine SS designs, the KP926 try to "fake" tube output curves, and could be used in genuine tube schematics.
I enclose the Id(mA) vs Vds(V) curves from datasheet, at various Vgs(V) negative bias voltages. Quite triode-like tubie picture.

kasey197 · 17th September 2012, 12:33 PM

These would need an output transformer ? Where does one buy these ?

VladimirK · 17th September 2012, 12:43 PM

Quote:

Originally Posted by kasey197

These would need an output transformer ? Where does one buy these ?

Yes, an output transformer seems necessary, but I doubt that the resulting sound would be as good as with tubes. At the same time, there could be some positive features, like no cathode current, no life-time limitation, better output impedance and amp-speaker interaction.
They are sourced from russian sellers, but indirectly, via some person-intermediant, since sellers can not export directly.

padamiecki · 18th September 2012, 07:12 AM

Quote:

Originally Posted by VladimirK

Russian KP926

Hi Vladimir
you have PM

Bigun · 18th September 2012, 05:23 PM

Vladimirk, I prefer KP801G, do you know of a source for these ?

wrenchone · 18th September 2012, 05:44 PM

I'd like to get my hands on some SITs myself for tinkering purposes, though I'll continue "faking it" as well.

Nelson Pass · 18th September 2012, 06:50 PM

I think you can still get the Sony parts through "acronman" on Ebay.

14th September 2012, 02:38 AM	#1
Bigun diyAudio Member Join Date: Jan 2009 Blog Entries: 2	SIT devices for DIY Any new hints on possible future availability of parts for us to play with ? I was reminded of this when I was re-reading the nemesis article again today "Also I have reason to believe that we will see some new SIT parts from a couple of sources in the coming year – parts that you should be able to actually buy. You should probably start saving for them now... © 2011 Nelson Pass" - if this is one of those 'annoying' questions that gets asked every few days please delete my thread !! __________________ "The test of the machine is the satisfaction it gives you. There isn't any other test. If the machine produces tranquility it's right. If it disturbs you it's wrong until either the machine or your mind is changed." Robert M Pirsig. Last edited by Bigun; 14th September 2012 at 02:48 AM.

14th September 2012, 11:45 AM	#2
Alain Dupont diyAudio Member Join Date: Sep 2003 Location: Paris - France	Hi, Take a look at : If You Don't Have a SIT, Fake It... __________________ Did live about 10 years in Canada Back to France since the 1st February 2007.

14th September 2012, 01:12 PM	#3
Bigun diyAudio Member Join Date: Jan 2009 Blog Entries: 2	Thanks for that - it's a fun thread to read. It offers high input impedance, better than a naked PASS SIT, albeit with extra parts. __________________ "The test of the machine is the satisfaction it gives you. There isn't any other test. If the machine produces tranquility it's right. If it disturbs you it's wrong until either the machine or your mind is changed." Robert M Pirsig.

18th September 2012, 05:23 PM	#8
Bigun diyAudio Member Join Date: Jan 2009 Blog Entries: 2	Vladimirk, I prefer KP801G, do you know of a source for these ? __________________ "The test of the machine is the satisfaction it gives you. There isn't any other test. If the machine produces tranquility it's right. If it disturbs you it's wrong until either the machine or your mind is changed." Robert M Pirsig.

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17th September 2012, 12:33 PM	#5
kasey197 The Dastardly Dad of Three diyAudio Member Join Date: Sep 2009	These would need an output transformer ? Where does one buy these ?

18th September 2012, 05:44 PM	#9
wrenchone diyAudio Member Join Date: Feb 2004 Location: Silicon Valley	I'd like to get my hands on some SITs myself for tinkering purposes, though I'll continue "faking it" as well.

18th September 2012, 06:50 PM	#10
Nelson Pass The one and only Join Date: Mar 2001	I think you can still get the Sony parts through "acronman" on Ebay.

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