Hello! I have a SN74HC08N IC and i've been trying to get it to work properly but i can't get it to work properly. The pulldown resistors are there, each on one input. When i connect input A to positive it gives a positive output, even if the B input has nothing but the pull down resistor. When i c…

AND gate not giving correct output

Grumpy_Mike April 10, 2018, 5:48am 4

I would go with the “pull down resistor on A has a bad connection” theory.

Also drop the pull down resistors to 470R or there abouts.

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