2 pin Molex header | | | S2 | 1 | 1uF | Film capacitor | | | C1 | 1 | B20k | Potentiometer | | R3, R21 | 2 | | | Tayda | A-2939 | | | | | | | | U2 | 1 | TL074 | Quad Low-Noise JFET-Input Operational Amplifiers, DIP-8/SOIC-8/TO-99-8"/> Switch, triple pole double throw K switch normally-open pushbutton push-button D Push button switch, normally open, two pins, 45° tilted D Momentary Switch, dual pole triple throw, 3 position switch, SP3T K switch normally-open pushbutton push-button Side push button https://www.e-switch.com/system/asset/product_line/data_sheet/210/800U.pdf CuK miniature.
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