So- I started with a circuit where a switch controlled a receptacle. I installed a chandelier in the room. The cable that connected the switch to the receptacle was accessible in the attic, so I cut the cable, installed a junction box, and attached both the receptacle and the chandelier to the switch, inside the junction box.
My circuit tester shows that both the receptacle and chandelier are hot when I flip the switch, but neither of them will light. (I plugged a floor lamp into the receptacle to test it). I tried reversing the wires in the chandelier (even though my instructions say it shouldn't matter). Still nothing lights. I've tried new light bulbs, too.
My inclination is that by splitting the circuit, I've somehow diminished it- but before I go messing around in the attic again, I was hoping someone could give me an idea. What bothers me is that the tester shows that I have power, but nothing actually working. Very confusing.