3
1
Back

| J9 | 1 | TL074 | Quad Low-Noise JFET-Input Operational Amplifiers, DIP-14/SOIC-14 | | L1 | 1 | Conn_01x07 | *(optional) SIP socket, 2.54 mm, 1x4 | | | R15, R20, R22 | 3 | 1 | B10k | **Potentiometer, 9 mm or 16 mm have been tested and there could be other values, ceramic may work, test debouncing. Maybe enlarge.

New Pull Request