The first stage of an amplifier is usually the predominan source of noise in the output. If conventional controls are not optimumly adjusted, the mixer stage becomes a potential source of noise. This paper analyzes the conventional methods of signal mixing and presents a novel operational amplifier approach which promises 14 to 20 dB less noise at operating levels.

Authors: Spranger, Paul; Pritchett, John
Affiliation: Altec Lansing Div. of LTV Ling Altec Inc., Anaheim, CA
AES Convention: 38 (May 1970) Paper Number: 732
Publication Date: May 1, 1970

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