These are 74S Schottky Transistor - Transistor Logic (TTL)
Manufacturers are primarily Texas Instruments, National Semiconductor, Fairchild & Motorola

3 ns gate delay, 20 mW dissipation, released in 1971

Always shipped in plastic rails !

Find quality IC Sockets at Luddite Electronics - IC Sockets

These are factory new parts. They have never been installed and have not been recovered from manufactured electronic components.

Press Send has Digital Logic
74 Series https://www.ebay.com/itm/383505260065
74LS Series https://www.ebay.com/itm/381789945739
74AS Series https://www.ebay.com/itm/383493060071
74ALS Series https://www.ebay.com/itm/254449803131 
74F Series https://www.ebay.com/itm/383449640252
74S Series https://www.ebay.com/itm/383498299485
75HC & 74HCT Series https://www.ebay.com/itm/383510995237

74S00  Quad 2-Input NAND Gate

74S02  Quad 2-Input NOR Gate
74S03  Quad 2-Input NAND Gate (Open Collector)
74S04  Hex Inverter
74S05  Hex Inverter (Open Collector)
74S08  Quad 2-Input AND Gate
74S08J  Quad 2-Input AND Gate - Ceramic
74S09  Quad 2-Input AND Gate (Open Collector)
74S10  Triple 3-Input NAND Gate
74S11  Triple 3-Input AND Gate
74S14  Hex Schmitt Trigger
74S15  Triple 3-Input AND Gate (Open Collector)
74S20  Dual 4-Input NAND Gate
74S30  8-INPUT NAND GATE
74S32  Quad 2-Input OR Gate
74S38  Quad 2-input positive-NAND buffers with open collector outputs
74S40  Dual 4-Input Positive-NAND Gate
74S51  Dual 2-wide 2-input and 3-input AND-NOR gate
74S64  4-2-3-2-Input AND-OR-Invert Gate
74S74  Dual D-Type Positive Edge-Triggered Flip-Flop
74S112   Dual J-K Negative-Edge-Triggered Flip-Flops With Clear And Preset
74S124   Dual Voltage Controlled Oscillator
74S133   13-Input-NAND gate
74S135   Quad 2 input XOR/XNOR Gate
74S138  3-Line to 8-Line Decoders/Demultiplexer
74S139  Dual 2-line to 4-line decoders / demultiplexer
74S151  8 Line Selector/Multiplexer
74S153  Dual 4-Input Multiplexer
74S157  Quad 2-1-Line Data Selectors/Mltplxrs
74S158  Quad 2/1 Multiplexer
74S161J  Presettable Binary Counter - Ceramic
74S163   Presettable Binary Counter With Clear
74S168   Synch Decade Up/Down Counter
74S169   Synchronous 4-Bit Up/Down Binary Counters
74S174  Hex D-Type Flip-Flops With Clear
74S175  Quad D-Type Flip-Flops With Clear
74S181  4-Bit Arithmetic Logic Unit
74S194   4-Bit Directional Universal Shift Register
74S240  Octal Inverter Bus/Line Driver
74S241  Octal Bus/Line Driver, Tri-State
74S244  Octal Driver Non-Inverting, Tri-State
74S260   Dual 5-Input NOR Gate
74S299    8-Bit Shift Register
74S374  Octal Dual Flip Flop, Tri-State