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-   -   TSSA - The Simplest Symmetrical Amplifier (http://www.diyaudio.com/forums/solid-state/210116-tssa-simplest-symmetrical-amplifier.html)

Lazy Cat 4th April 2012 03:42 AM

TSSA - The Simplest Symmetrical Amplifier
 
1 Attachment(s)
Schematic explains itself. ;)

JZatopa 4th April 2012 04:03 AM

Have you built it? How does it sound?

Bigun 4th April 2012 04:19 AM

F5 :D

Lazy Cat 4th April 2012 08:11 AM

FA :D

P.S. F5 with input BJT-s. ;)

Lazy Cat 4th April 2012 08:39 AM

Quote:

Originally Posted by DJNUBZ (Post 2971961)
Have you built it? How does it sound?

As I was informed Mr. Nelson Pass built it. Everything what comes from him sounds perfect. :wiz:

AKSA 4th April 2012 08:57 AM

Andrej,

I really like your simplification of the SSA. Very elegant.

Hugh

sonnya 4th April 2012 09:08 AM

Place those diodes on top of the mosfets (top diode on bottom mosfet and bottom diode ...).

Lazy Cat 4th April 2012 09:10 AM

Hi Aksa ;)

Thanks, the credit goes to NP F5. Still it is also very close to basic SSA, somehow logical step to a really low parts count, still maintaining input BJT-s and to have bias/offset setting. I couldn't resist to draw it ... :)

Regards, Andrej

Lazy Cat 4th April 2012 09:15 AM

Quote:

Originally Posted by sonnya (Post 2972155)
Place those diodes on top of the mosfets (top diode on bottom mosfet and bottom diode ...).

You mean thermally? :rolleyes:

Electrically diodes provide bias conditions for input BJT-s and thus for the whole amp. Output bias should be class-A. ;)

buzzforb 4th April 2012 10:24 AM

Might have to try this one. See how the bjt compares to jfet.


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