Momo

Awsome

Wow... on two cases you have a logic train and an opposing dc power supply powering a light... then in another you have an and gate, an current supply, a dc voltage source wired to oppose the current source and the and gate, and a ac power supply to light one light...the and gate doesn't even have enough voltage to it to turn on... and you put an ohmmeter in series with all of this so when you open it up you get a nice message to remove it before power sources are applied. I take it you have no idea what you're doing and have never worked on a circuit before... or check this before you publish it.