I am a newbie in electronics. I was trying to replicate this traffic control diagram:
I recreated the circuit in Multisim using 2 clocks and an AND gate, the 3 LEDs light up:
If I replace the AND gate with a 7408 IC, the green LED does not light up anymore and I am not sure why.
I put the 2 inputs and 1 output wire according to its pin diagram and I connected the VCC and ground.
I can't figure out why the green LED won't light up.