OR  from  NAND

We can connect NAND gates so that we get an OR gate. Wire up the following circuit and test your circuit by working out the Truth Table.

Circuit:

Wiring Diagram:

1.   Disconnect B LED and resistor from pin 2 and connect to pin 12.

2.   Connect pin 1 to pin 2.

3.   Connect pin 12 to pin 13.

4.   Connect pin 11 to pin 6.

5.   Connect pin 3 to pin 5.

 

 

 

 

 

 

 

 

Test:     Work out the truth table using the Logic Test Board.

    

 

 

 

 

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