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Noise measurment and figures

Subject: Noise measurment and figures
From: Klas Strandberg <>
Date: Sun, 28 Apr 2002 00:52:04 +0200
What is the matter?

I write:

"1/ For each time you "parallel" transistors, you get 3 db less transistor
noise, because noise will randomly get anti-phase. Four elements therefore
means -6db, hence; 22 - 6= 18 dbA."

But 22-6 is not 18... 

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