TI SN74H40 Gold Flat-Pack Dual 4-IN NAND Gate IC, RARE 1960s

Fairchild 9N00/7400PC Quad 2-In Nand Gate Vintage IC

SN7400 Texas Instruments Mil-Spec Gold Flat Pack IC Chip Vintage-ic RARE U.S.A.

TI SN7420 Gold Flat-Pack Dual 4-IN NAND Gate IC

TI SN7410 Gold Flat-Pack 3x 3-IN NAND Gate Logic IC, RARE 1960s

SN7400N Texas Instruments NAND Gate 4-Func 2-Input PDIP14 IC

General Instruments N7400A TTL Quad 2-Input NAND Gate 14-Pin IC

TI SN7402 Gold Flat-Pack Quad 2-IN NAND Gate IC