40-In-One Digital Logic Kit

Learn about electronics and how the digital logic circuit works in fun way.
There are five basic logic devices and named by a particular combination of inputs which generate a unique output.
User can study how to implement AND, OR, NOR and NOR gates by using NAND gate (TTL 7400) and the electronic feature of these basic gates.
User can understand more electricity theory about charge-discharge circuit, buffer and latch, flip-flop, counter and so forth.
Includes all parts needed to build 40 exciting electronic projects.
You can also study how to use these basic gates to implement some useful functions such as water detector, torch light, voice and light alarm, or some funny games like blowing-off candle, talk walk, octave generator, and so on.
Well-assembled components enable you immediately enjoy experimenting on different projects.
Safe, easy solderless coil-spring assembly.