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BackTilted D Momentary Switch, single pole double throw K switch single-pole double-throw spdt ON-ON D Push button switch, generic, two pins K switch normally-open pushbutton push-button LCD D MEC 5E single pole double throw K switch spdt single-pole double-throw spdt ON-ON D Screw terminal, single row, 01x03 D 2x5 pin shrouded header 2.54 mm spacing | | R9, R11, R13 | 3 | 4.7k | Resistor | | | | | | | 1 | B10k | **Potentiometer, 16 mm vertical board mount. Only 16 mm vertical board mount | | | S3 | 1 | SW_3PDT_x3 | Switch, single pole double throw, separate symbols Quad Low-Noise JFET-Input Operational Amplifiers, DIP-8/SOIC-8/TO-99-8 | | R4, R6, R7 | 3 | 2N3904 | 0.2A Ic, 40V Vce, Small Signal NPN Transistor, TO-92"/>