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BackSwitch 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 | | | | | | S2 | 1 | 3_pin_Molex_connector | 3 | AudioJack2 | Audio Jack, 2 Poles (Mono / TS), Switched T Pole (Normalling)"/>