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MC34161P Integrated Circuit - DIP8 - ON Semiconductor

NE592D8 Integrated Circuit - DIP8 - ON Semiconductor

RC4391 Integrated Circuit - DIP8 - Raytheon Semiconductor

U490B Integrated Circuit - DIP8 - Vishay Semiconductor

Q0365R Integrated Circuit - DIP8 - Fairchild Semiconductor

RC4391N Integrated Circuit - DIP8 - Fairchild Semiconductor