1x SN74LS245N Texas Instruments Octal Bus Transceiver 3-State DIP-20

1x NE5534N Philips Low noise op-amp DIP-8

2 PCS - SN74LS240N - TTL OCTAL 3-STATE BUFFER / LINE DRIVER / RECEIVER – DIP 20

74HCT273 ( x 5 pieces ) TEXAS INSTRUMENTS Octal D Flip-Flop Dip20 SN74HCT273N

1x MC74HC241AN Motorola Octal Buffer/Line Driver 3-State DIP-20

CD74HCT574E DIP20 Texas Instruments

SN74LS374N - CI - OCTAL FLIP-FLOPS - DIP-20 - TEXAS INSTRUMENTS

1x PC74HC541P Philips Octal Buffer/Line Driver 3-State DIP-20