U2531B Integrated Circuit - DIP8 - Vishay Semiconductor

U490B Integrated Circuit - DIP8 - Vishay Semiconductor

TEA1024 TFK INTEGRATED CIRCUIT DIP-8 ''UK COMPANY SINCE1983 NIKKO''

LM4250 Integrated Circuit - DIP8 - National Semiconductor - NSC

U217B Integrated Circuit - DIP8 - Vishay Semiconductor

U666B Integrated Circuit - DIP8 - Vishay Semiconductor

U2043B Integrated Circuit - DIP8 - Vishay Semiconductor

U2352B Integrated Circuit - DIP8 - Vishay Semiconductor