National Semiconductor Corp - LM741CH - IC, Operational Amplifier. TO-99-8 Metal Can.,Quad 2-Input NOR Gate - National Semiconductor MM74HC02N,LM74502x/LM74502x-Q1 RPP Controller - TI | Mouser,SO-14.png?v=3,LM74610-Q1 data sheet, product information and support | TI.com,