5 x Genuine SN74LS21N T.I. Dual 4-input AND Gates 74LS21 IC

5 X 74LS21N SIGNETICS Original Logic Dual 4-Input AND DIP-14 74LS21 NEW IC

5 x 74S86N SIGNETICS Quad Two-Input Exclusive-OR Gate 74S86 SN74S86N IC

5 x DM74S40N by NSC Dual 4-Input NAND Buffer SN74S40N 74S40 IC

5 x MH7420 TESLA DUAL 4-INPUT NAND GATES SN7420N DM7420N HD7420P 7420 IC

5x Genuine 74LS14 SN74LS14N Matsuchita Schmitt Triggers Dual GateHex Inverter IC

5 xGenuine Vintage HD74S20P Hitachi Japan DUAL 4-INPUT NAND GATE SN74S20N IC NEW

4 x Genuine T74LS10B1 74LS10 SGS Triple 3-input positive-NAND gates IC