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30V, CW Industries P/N GPTS203211B, http://switches-connectors-custom.cwind.com/Asset/GPTS203211BR2.pdf SPST button switch with LED, generic D Push button switch, generic, two pins Quad operational amplifier, DIP-14 A-1135 2 8 pin DIP socket A-004 4 Knobs Screws, nuts, and spacers (see [build notes](build.md | | | Tayda | A-1138 | | | | | | | R2, R5 | 1 | TL074 | Quad Low-Noise JFET-Input Operational Amplifiers, DIP-14/SOIC-14 | | | Q1, Q2, Q3 | 3 | 2_pin_Molex_connector | 2 | 10R | Resistor | | Tayda | A-1672 | | | Tayda | A-3588 | \** Use only four (4) potentiometers, either 9 mm or 16 mm vertical board mount. \*\* Use only four (4) potentiometers, either 9 mm or 16 mm have been **Untested hardware and software — Do not connect the Normal pin for Pause (J19/J18); the schematic and front.

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