2 Pieces NJM4558D Dual Operational Amplifier New JRC Integrated Circuit

ROHM BA4558N ZIP-8 Dual operational amplifier

NTE Electronics NTE928 Integrated Circuit Low Power Dual Operational Amplifier

5PCS RC4559N RC4559 ORIGINAL DUAL HIGH-PERFORMANCE OPERATIONAL AMPLIFIER DIP8

NTE Electronics NTE976 INTEGRATED CIRCUIT OPERATIONAL AMPLIFIER 8 LEAD DIP

2x NE5532N dual low noise operational amplifier (S)

NTE NTE858M INTEGRATED CIRCUIT DUAL LOW NOISE JFET INPUT OPERATIONAL AMPLIFIER 8

NTE NTE948 INTEGRATED CIRCUIT QUAD OPERATIONAL AMPLIFIER 14 LEAD DIP