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Throw | | R8, R10, R12 | 3 | 1k | Resistor | | | | R16, R18, R26 | 3 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 215079-6 7-215079-6 TE-Connectivity Micro-MaTch female-on-board top-entry thru-hole 14 pin DIP socket A-004 4 Knobs Screws, nuts, and spacers (see [build notes](build.md)) | | | J8 | 1 | 1uF | Unpolarized capacitor | | | S3 | 1 | LM358 | Low-Power, Dual Operational Amplifiers, DIP-8/SOIC-8/TO-99-8 | | S2 | 1 uF | Polarized capacitor | | | | | Tayda | A-553 | | | | C1, C11 | 2 | 10k | Resistor | | | | C3, C4, C11 | 2 | | | | | | | R9, R11, R13 | 3 | A1M | Potentiometer | | J6 | 1 | SW_SPDT | Switch, triple pole double throw, separate symbols | | Tayda | A-804 | | Tayda | A-1955 | | Tayda | A-804 | | | J7, J8, J9 | 3 | A1M | **Potentiometer, 9 mm or 16 mm vertical board mount OR: | | | | ----- | --- | ---- | ---- | ----------- | ---- | ---- | ---- | ---- | | | | | | | | Tayda | A-553 | | | C6, C7, C8, C9 | 4 Hardware/PCB/precadsr/precadsr.sch | 247 (40 Dwgs.User user (41 Cmts.User user (42 Eco1.User user hide (0 "F.Cu" signal (31 B.Cu signal (32 B.Adhes user (33 F.Adhes user (34 B.Paste user (35 F.Paste user hide 42 Eco1.User user (43 Eco2.User user (44 Edge.Cuts user (45 Margin user (46 "B.CrtYd" user "B.Courtyard" (47 "F.CrtYd" user "F.Courtyard" (48 "B.Fab" user (49 "F.Fab" user (aux_axis_origin 0 0 Y N 2 F N DEF SW_Reed SW 0 40 Y N 1 F N DEF SW_SPST_Lamp SW 0 20 Y N 1 F N DEF ao_symbols_Graphic GRAF 0 40 Y N 1 F N DEF SW_Coded_SH-7010 SW 0 0 Y N 1 F N DEF SW_DIP_x06 SW 0 20 Y N 1 F N DEF SW_3PDT_x3 SW 0 0 Y N 1 F N DEF SW_E3_SA3216 SW 0 0 Y N 2 F N DEF SW_SP3T SW 0 0 N N 1 F N DEF SW_Push_Lamp SW 0 40 Y N 1 F N DEF SW_E3_SA3216 SW 0 0 Y.

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