Diode, DO-35 Push button switch, generic, separate symbols, four pins D Push button switch, generic, two pinsLow-Power, Quad-Operational Amplifiers, DIP-14/SOIC-14/SSOP-14 Dual Operational Amplifiers, DIP-8/SOIC-8/TO-99-8 | | L1 | 1 | Conn_01x04 | Pin socket, 2.54 mm, 1x4 | | Taydaa | A-4755 | | Tayda | A-3588 | | | Tayda | A-111 | | | 4 | 100k | Resistor | | | | | | | | | | | | U3 | 1 | LED | Light emitting diode | | | D1, D2 | 2 | 10k | Resistor | | | | | | Screws, nuts, and spacers (see [build notes](build.md)) | | | | | | | | | | U2 | 1 | SW_Push | Push button switch Off-On CuK sub miniature slide switch, EG series, DPDT, right angle, http://www.ckswitches.com/media/1422/js.pdf CuK miniature slide switch, EG series, SPDT, right angle, PTS645VL39-2 LFS tactile switch Omron B3F right angle http://www.alps.com/prod/info/E/HTML/Tact/SnapIn/SKHH/SKHHLUA010.html tactile switch SPST LED OFF-ON lamp D Single Pole Single Throw (SPST) switch, small symbol D 11x DIP Switch, Single Pole Single Throw (SPST) switch, small symbol D 11x DIP Switch, Single Pole Single Throw (SPST) switch, separate symbol D 8x DIP Switch, Single Pole Single Throw (SPST) switch, small symbol D 3x DIP Switch, Single Pole Single Throw (SPST) switch, small symbol D 12x DIP Switch, Single Pole Single Throw (DPST) Switch K switch.