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Double throw | | | | Q1, Q2, Q3, Q4, Q5 R1, R2, R23, R24 R3, R21, R27, R28 | 3 | 2N3904 | 0.2A Ic, 40V Vce, Small Signal NPN Transistor, TO-92"/> Low-Power, Quad-Operational Amplifiers, DIP-14/SOIC-14/SSOP-14 Dual Operational Amplifiers, DIP-14/SOIC-14 | | | S1 | 1 | Conn_01x02 | SIP socket, 2.54 mm, 1x2 (see [build notes](build.md | | | | Tayda | A-2939 | | | | | | Tayda | A-1624 or A-2969 | | C10 | 1 | Synth_power_2x5 | 2x5 pin shrouded header 2.54 mm 2x5 | | | | | Screws, nuts, and spacers (see [build notes](build.md)) | | | | | Tayda | A-1955 | | | R23, R24, R25, R27 Switch, triple pole double throw, separate symbols K switch dual double-pole single-throw OFF-ON D Single Pole Single Throw (SPST) switch with LCD screen E3 SAxxxx switch normally-open pushbutton push-button LCD D MEC 5G single pole triple throw, 3 position.

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