I have recently bought this IC:
It's a NAND gate. So just to be clear, we agree that if both inputs are 1, the output will be 0. (The IC is a Quad 2-input NAND-gate 74HCT03, the datasheet can be found here )
This chip just won't work for me. I'm using a breadboard as you can see beolow, and no matter what I do, it wont work.
As you can see in the picture, I have connected the right side of the chip to +, and the left side to negative. This should mean that the IC is ON. I then connect the wires to pin 1 and 2. And a LED to pin 3. I have connected the pins to 10k resistors to ground, so they can be 0 if no power is on. I have tried to remove the switches and just create a wire that goes directly from + to pin 1 and 2 but nothing happens. The funny thing is that whenever I disconnect the wire that goes from pin 7 to ground, the LED starts to light. I migth be stupid, but I can't really figure this out..