NJM4558DX Integrated Circuit Op-Amp - DIP8 - New Japan Radio - NJR

OP07CP Integrated Circuit - DIP8 - Texas Instruments

NJM2114L LOW NOISE OP-AMP INTEGRATED CIRCUIT SIP-8 'UK COMPANY SINCE 1983 NIKKO

OP27EPZ Integrated Circuit - DIP8 - Optek

NJM2068D Integrated Circuit Op-Amp - DIP8 - New Japan Radio - NJR

OP42EZ Integrated Circuit FET - DIP8 - PMI

RC5534AN Integrated Circuit Op-Amp - DIP8 - Fairchild Semiconductor

OP215GZ Integrated Circuit - DIP8 - Optek