Enable/Disable Receiving items from certain 'things'

This world has a small circuit which can help you to either recieve items from an input or not to receive them. It shows you this circuit in use by putting to mob grinders and have two levers which can toggle bringing the items from the specific mob grinder to the main chest. I showed this with a zombie mob farm and a spider(a really bad choice lol) Anyway, you can learn about the circuit by press the button near the circuit. I did not research at all to make this, I expiremented and got this. Hope you enjoy,


- sebagius7110