I made a prototype to test a few logic gates and found out that
My AND gate (7408) Works like an OR Gate.
My OR Gate (7432) is always on
My XOR Gate (7486) is always off
My NOT Gate (7404) works.
The grey and Brown hanging wires are inputs, the LED up top is output. The current chip is the 74HC08N AND by TI.
Sometimes, the gates randomly work too.
Adding Resistors and pulling to GND fixed all but the XOR (74F86PC) Gate, which still does not respond (With bypass capacitors, etc)
I Am Running at 3 V
So, help? Thanks! These are my first circuits, so a bit dirty, sorry.