74LS00

$1.49
74LS00 / 74LS00N replacement chip, DIP-14, quadruple 2-Input positive-NAND gate used in arcade games and pinball machine repair.

74LS157

$2.99
74LS245 / 74LS245N replacement chip,DIP-20, Octal Bus Transceivers With 3-State Outputs.

74LS245

$2.99
74LS245 / 74LS245N replacement chip,DIP-20, Octal Bus Transceivers With 3-State Outputs.

74LS273

$2.49
74LS273 replacement chip. DIP-20. Octal D-type flip-flop with clear.