Labels Milestones
BackR24 R3, R21, R27, R28 R4, R6, R7 | 2 | 47k | Resistor | | | R5, R29 | 3 | 1k | Resistor | | | | R4, R6, R7, R30, R31 | 1 | SW_3PDT_x3 | Switch, dual pole double throw K switch normally-open pushbutton push-button Lamp D Push button switch, generic, symbol, four pins D Push button switch with Signal Lamp, generic K switch normally-open pushbutton push-button Side push button https://www.e-switch.com/system/asset/product_line/data_sheet/210/800U.pdf CuK miniature slide switch, OS series, SPDT, https://www.ckswitches.com/media/1428/os.pdf tactile switch with signal lamp, generic K switch normally-open pushbutton push-button D MEC 5E single pole double throw, separate symbols Quad Low-Noise JFET-Input Operational Amplifiers, DIP-14/SOIC-14 | | Tayda | A-157 | | Screws, nuts, and spacers (see [build notes](build.md)) | | Tayda | A-1672 | | | | | J12 | 1 | TL074 | Quad Low-Noise JFET-Input Operational Amplifiers, DIP-14/SOIC-14 | | Tayda | A-826 | | | Tayda | A-1672 | | | | | | S1 | 1 | SW_3PDT_x3 | Switch, single pole double throw, separate symbols"/>