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C7, C11 | 2 | 1nF | Film capacitor | | | | | R23, R24, R25, R27 Switch, triple pole double throw | | | | | | | | | | | | | | | | U2 | 1 | Conn_01x07 | *(optional) SIP socket, 2.54 mm, 1x4 Pin header, 2.54 mm, 1x2 (see [build notes](build.md | | | | | | Tayda | A-826 | | | Q1, Q2, Q3, Q4, Q5 R1, R2, R23, R24 R3, R21, R27, R28 | 3 | 2N3904 | Small Signal NPN Transistor, TO-92 Quad operational amplifier, DIP-14 A-1135 2 8 pin connector, https://www.te.com/commerce/DocumentDelivery/DDEController?Action=showdoc&DocId=Customer+Drawing%7F215079%7FY1%7Fpdf%7FEnglish%7FENG_CD_215079_Y1.pdf%7F215079-4 connector TE-Connectivity Micro-MaTch Vertical 215079-4 7-215079-4 TE-Connectivity Micro-MaTch Vertical 215079-8 7-215079-8 USB 3.0, type A, right angle stacked dual USB 3.0, type A, Horizontal, https://www.molex.com/pdm_docs/sd/676433910_sd.pdf USB_A Female Connector receptacle USB A connector https://belfuse.com/resources/drawings/stewartconnector/dr-stw-ss-52100-001.pdf USB type A right angle Molex 0.50mm Pitch Easy-On BackFlip Type FFC/FPC, 502250-3991, 39 Circuits (http://www.molex.com/pdm_docs/sd/5022503991_sd.pdf), generated with kicad-footprint-generator ipc_noLead_generator.py QFN, 48 Pin (https://www.nxp.com/docs/en/package-information/98ASA00694D.pdf DFN8 2x2, 0.5P; No exposed.

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