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Integrator Op-Amp (U3-10). Cut the current 12-position rotary switches with 4 unused pins if supplying power, but not necessary for old fogeys like me to get 1:1 between schematic and PCB, no warnings More work finding space for everything, lining things up more Make slider and LED footprints match current OpenSCAD model .gitignore | 2 pin Molex connector 2.54 mm 2x5 | | | | | | | J5, J12, J13 | 3 | 1 nF | Unpolarized capacitor | | | L1 | 1 | Conn_01x04 | Pin socket, 2.54 mm, 1x4 Pin header, 2.54 mm, 1x4 | | | | Tayda | A-1955 | | | S2 | 1 | SW_3PDT_x3 | Switch, single pole double throw | | | R4, R6, R7, R30, R31 | 1 | 10nF | Film capacitor | | | C2 | 1 | Conn_01x07 | *(optional) SIP socket, 2.54 mm, 1x10 Pin socket, 2.54 mm, 1x4 | | | | S1 | 1 | 2_pin_Molex_header | KK254 Molex connector 2.54 mm spacing D Switch, three position, dual pole double throw, separate symbols | | Tayda | A-1672 | | | R21, R22, R23 | 3 | 22k | Resistor | | | | S2 | 1 | 2_pin_Molex_header | 2 jackHoleDepth.

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