Amazon.com: 400 Piece 7400 Logic Series Grab Bag : Electronics
Taidacent 74 Series ic Tester USB Interface Logic gate Chips 7400 ic chip: Amazon.com: Industrial & Scientific
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CMOS ,TTL Logic ICs,Logic Families indicate the type of logic circuit used in the IC.In transistor-transistor logic (TTL) , logic gates and other digital
7400 / 74F00N IC Quad 2-input positive-NAND gates (PACK OF 10) by Indian Hobby Center : Amazon.in: Industrial & Scientific
7400 TTL Chip kickstart oscillator logic TTL levels on 1 Hz or higher demo & schematic (no crystal) - YouTube