Srajan has the 1st SIT amp for Une dégustation

[Nelson Pass]

I see that Srajan has added a postscript talking about the phase thing:

6moons audio reviews: Nelson Pass' NewWatt

 

[Salas]

That brown diffusing array on the wall is some Greek acoustics guy product, have seen it here in some places.

 

[CeeVee]

You'll soon know first hand, lucky boy.

Listen before and after Slivovitz for compare and contrast.

...after shlivovitcz there is no contrast...just angels singing....in tune .. out of tune ... who cares....

 

[Nelson Pass]

There are now 6 parts to that piece, so if you saw the early postings, you
might want to take a look again.

 

[flg]

Pardon me but, calling it a peice, is putting it mildly???

 

[Nelson Pass]

I am a mild-mannered guy, in case you haven't noticed.

 

[buzzforb]

What would these babies sound like as a power buffer?

 

[Nelson Pass]

They perform quite well as followers, but Common Source mode is their
strong suit.

 

[buzzforb]

No degeneration? Interesting.

 

[StevenOH]

Using degeneration for SIT is a "crime". It is the only class of active
devices (together with triodes) that can provide low output impedance
(of a few Ohm) in CS configuration without any FB and a gain >1 (related
to mu).
Degenerating SIT (as well as triode) will increase its output impedance,
thus eliminating its main advantage in comparison with the other active
devices.

 

[Tea-Bag]

Are we talking about use of a source resistor, I don't think so.
Can someone tell me a reference to this term, that anyone can understand?

 

[StevenOH]

I was talking about the "source resistor".
Common emitter - Wikipedia, the free encyclopedia

 

[buzzforb]

Thanks again Steven. Had no idea as i am a super newb. Gain of less than 1. Ahhhhh. Just what i need for easy implementation

 

[generg]

No, gain greater than one is meant

 

[buzzforb]

I guess that actually paying attention to Nelson's graphs would have helped.

 

[StevenOH]

And his SIT graph clearly shows mu~15, which, with the LL positioning,
produced gain of 19db (almost 10 times). Much higher, than with those
Sony's (mu~4), and even Yamaha's V-JFET (mu~7).

 

[Jon Ver Halen]

If you really want to hear the S2

It will be in room 1007 at RMAF.

A prototype unit arrived here today. Now to play some music through it!

 

[Jon Ver Halen]

S2 Sounds like tubes

Well, my system is in a bit of disarray right now, and it is hard to mark a detailed observation of the sound of the S2. The initial brush with it is that it sounds like a great tube amplifier, with a bit more speed and detail. My ears say tubes, and the amount of heat it generates says tubes. This thing cooks!

More later.

 

[Zen Mod]

well ..... just remember that Mighty ZM first sez that Papa is playin' with modern 300B

 

[Jon Ver Halen]

Inside the S2

well ..... just remember that Mighty ZM first sez that Papa is playin' with modern 300B

Sorry Zen, but you appear to be wrong. Popped the hood and found this. Looks like a GM70 to me.