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Amazon.com: Taidacent OPA541 OP AMP High Power Monolithic Operational Amplifier 5A Current High Voltage Audio Amplifier Sound Amplifier Board : Electronics
Juried Engineering LM358P LM358 Dual High-Gain Frequency-Compensated Industry-Standard Operational Amplifiers Op Amp Breadboard-Friendly IC DIP-8 (Pack of 20): Amazon.com: Industrial & Scientific
MICROCHIP TECHNOLOGY MCP604-I/SL MCP604 Series 6 V 2.8 MHz Single Supply CMOS Operational Amplifier - SOIC-14 - 10 item(s): Amazon.com: Industrial & Scientific