Graeme: Adjust Op Amp Gain Over Bipolar Range

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mediatechnology
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Graeme: Adjust Op Amp Gain Over Bipolar Range

Post by mediatechnology » Fri Jun 17, 2016 6:51 pm

"A Single Potentiometer Adjusts Op-Amp's Gain Over Bipolar Range," Jerald Graeme, Electronic Design, July 19, 1975.

This is a very handy circuit that is a combination polarity flipper and gain control. I've used the unity gain version - using a THAT1240 - in both the Stereo Width Controller and the Matrix Panner. This version adds R2 which provides gains greater than unity.

"A Single Potentiometer Adjusts Op-Amp's Gain Over Bipolar Range," Jerald Graeme, Electronic Design, July 19, 1975. Pdf: https://proaudiodesignforum.com/images/ ... 9_1975.pdf

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"A Single Potentiometer Adjusts Op-Amp's Gain Over Bipolar Range," Jerald Graeme, Electronic Design, July 19, 1975.

Related content:

Matrix Panner: https://www.proaudiodesignforum.com/for ... ?f=6&t=110
Stereo Width Controller: https://www.proaudiodesignforum.com/for ... ?f=7&t=731
Polarity Flipper: https://www.proaudiodesignforum.com/for ... p?f=6&t=66
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