I have made the following circuit. Using the multimeter,+ on first and - on last LED, I get 8.7 volts. What are possible reasons for no light? I have checked that I got the connections correct ( + to - ) for each LED. Since I have cut the leads to solder the LED together, I used lead frame orientation to double check that connections were correct. Any other possible reason that this might not be working? If one was damaged during soldering, do all stop working? Would current still go through ? 9V battery, 1.9 voltage drop on LED, 82 Ohm resistor, circuit was working on breadboard, no light after soldering.