RC4559P Integrated Circuit - CASE: DIP8 MAKE: Texas Instruments

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RC4559P Integrated Circuit - CASE: DIP8 MAKE: Texas Instruments

JRC 4558 = RC4558 THT 8p DIL DIP Integrated Dual Op-Amp 1g GK27

TA7540P Integrated Circuit Op-Amp - Case: DIP8 Make: Toshiba

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MC1306P Integrated Circuit - Protective Case: DIP8 Make: