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BackEntry ATA PATA IDE 5.25 inch floppy drive power USB 3.0, type A, 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 8x DIP Switch, Single Pole Single Throw (SPST) switch, small symbol D 7x DIP Switch, Single Pole Single Throw (SPST) switch, small symbol D Switch, single pole double throw Precision Timers, 555 compatible, PDIP-8 0.2A Ic, 40V Vce, Small Signal NPN Transistor, TO-92 | | J4 | 1 | 10R | Resistor | | C13 | 1 | TL074 | Quad operational amplifier, DIP-14