Hex Inverter IC, 6-Ch, Open Collector, 5V, 8mA, 32ns, PDIP
TEXAS INSTRUMENTS SN74LS06NG4 Buffer / Driver, Inverting, with Open Collector Output, 4.75V to 5.25V, DIP-14
AND Gate DIP 2-Input 8mA 5.25V
IC, HEX BUFFER/DRIVER, 74LC07, DIP
SN74LS05NE4