7440 TTL Dual 4 Input NAND Buffer - NOS

SN7440N TTL Dual 4 Input NAND Buffer - 7440 DM7440 - NOS

2 pcs Sprague USN7440A TTL DUAL 4-INPUT POSITIVE NAND BUFFER 14 PIN DIP IC

5PCS 7406N SIGNETICS Hex Inverter Buffer/Drivers IC TTL DIP-14 SN7406N

6pcs Signetics N7440AH Dual 4-Input NAND Buffer Positive Logic TTL 5V DIP-14

1 Ea. ~ ECG7420 ~ Philips ~ IC TTL~ Dual 4 Input NAND Gate ~ NOS

7400N Signetics NAND Gate 2-Input TTL PDIP14 IC

Vintage Signetics N7420A Dual 4-Input Positive NAND Gate 14-Pin IC Chip IC @IC8