Labels Milestones
BackSwitch normally-closed pushbutton push-button LED D MEC 5E single pole double throw, separate symbols | | | | R9, R11, R13 | 3 | 1k | Resistor | | | R24, R26, R28 | 3 | 10uF | Electrolytic capacitor | | U3 | 1 | B10k | Potentiometer | | | | C9 | 1 | 3_pin_Molex_connector | 3 | 2N3904 | 0.2A Ic, 40V Vce, Small Signal NPN Transistor, TO-92.