5x20mm 5 mm Small Signal NPN Transistor, TO-92 100V 0.15A standard switching diode, DO-35Push button switch, normally closed, generic, four pins D Momentary Switch, dual pole double throw, illuminated paddle, http://www.nkkswitches.com/pdf/gwillum.pdf switch single-pole double-throw ON-OFF-ON D Single Pole Single Throw (SPST) switch, small symbol D 4x DIP Switch, Single Pole Single Throw (SPST) switch, separate symbol D 5x DIP Switch, Single Pole Single Throw (SPST) switch with 12 positions D.