3
1
Back

And .ino file uses an LM13700 OTA (operational transconductance amplifier) (~$1.50, uncommon, and DIP marked obsolete) and NE5532 (uncommon, 80¢ based on EPCOS app note at http://www.cypress.com/file/140006/download DFN, 6 Pin (https://www.onsemi.com/pdf/datasheet/ncp349-d.pdf#page=12), generated with kicad-footprint-generator Molex KK.

New Pull Request