Graeme: Adjust Op Amp Gain Over Bipolar Range

A resource for technical documentation. Datasheets, application notes, instruction manuals, books and links to resources are found in the Document Library.
Post Reply
User avatar
mediatechnology
Posts: 5444
Joined: Sat Aug 11, 2007 2:34 pm
Location: Oak Cliff, Texas
Contact:

Graeme: Adjust Op Amp Gain Over Bipolar Range

Post by mediatechnology »

"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

Image
"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
Post Reply