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Amazon.com: Dual OP AMP Module, Portable Dual Operational Amplifier Good Fidelity Stable Performance for Home : Industrial & Scientific
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Taidacent OPA657 High Speed Low Noise Broadband Op Amp FET Non-Inverting Operational Amplifier High Speed Current Buffer FET-Input Voltage-Feedback Operational Amplifier: Amazon.com: Industrial & Scientific
Amazon.com: Demeras Op AMP Assortment, Gold Single Operational Amplifier DIP8 Straight Plug High Power HiFi for Upgrading DAC : Electronics
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Amazon.com: 1 pc AD8138 Low Power Consumption Differential to Single Ended Amplifier Circuit Single to op amp Differential Amplifier : Electronics