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With mods Low-Power, Quad-Operational Amplifiers, DIP-14/SOIC-14/SSOP-14 Dual Operational Amplifiers, DIP-14/SOIC-14 | | | | | | | R25 | 1 | Conn_01x07 | *(optional) SIP socket, 2.54 mm, 1x4 Pin header, 2.54 mm, 1x2 (see [build notes](build.md)) | | | | Tayda | A-4349 | | | | Tayda | A-4349 | | | | | | | Tayda | A-553 | | J3 | 1 | B10k | \*\*Potentiometer, 16 mm vertical board mount. \*\* Use only four (4) potentiometers, either 9 mm vertical board mount module ACDC-Converter, Murata, 5W, ClassB, https://www.murata.com/products/productdata/8809982558238/KAC-BAC05.pdf switching power supply tht Constant.

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