What are the benefits of complementary difference structures

[qq91816]

Hi, my friends, I want to ask you a question.

The circuit diagram consists of T1-T4.
What are the benefits of complementary difference structures

 

[BesPav]

Easiness of joining with push-pull VAS stage.

 

[qq91816]

Sorry, I put the wrong picture. The correct one is this one. complementary difference structures

 

[BesPav]

This one are very bad by design itself, but there are mostly the same main feature - push-pull output complementary stage by two complementary input stages.

 

[tiefbassuebertr]

check out this threads:
https://www.diyaudio.com/forums/elektor/121825-sln-pre-amp-elektor-aug-1982-a.html#post1894284
The most linear stage for large voltage swings - Lender's Circuit
the most mentioned links probably are death in the meantime. In such cases use the portal of webarchive.

 

[Mr Evil]

There are a few potential benefits, including:

• Cancellation of even harmonic distortion.
• Symmetrical slew rate (assuming the following stage is symmetrical too).
• Cancellation of input bias current.
• Increased gain.
• Decreased noise.

 

[qq91816]

Thank you for your answer. How can it reduce noise?

 

[jazbo8]

@qq91816 - please take the discussion back to SOVEREIGN

Cross-forum posting is not welcomed here.