OK...now I need help with some lighting from somebody with a little more electrical expertise than I. I am trying to install a cold cathode light tube (originally meant for computers) into a custom built amp rack. I have them wired into a common ground with the amplifiers, and they are receiving power through a relayed wire straight from the battery.
The problem is that I have is that the wires that came with it are not long enough, and I have to extend them on the light side of the transformer. I have tried using regular 18ga wire (the stock wire was 22ga) and get what seems to be interference problems. If these two wires coming off the transformer are ran anywhere close to each other, the light dims drastically, sometimes not even lighting the entire tube. Unfortunately, I do not have much room to work with on this rack, and I will be installing 3 lights, so it's near impossible to not have these 6 wires at least somewhat closer to each other.
I have tried using shielded wire (unfortunately, the only place I can find this near me is radio shack, and they only had shielded wire with two 24ga wires in it). Since I already know that these two wires are causing interference with each other, I cannot run them in the same shielded cable, so I connected one wire to one conductor in each of two lengths of the shielded cable. If I grounded the shield, then the lights wouldn't work at all, and if I didn't ground the shield, it had the same problems as before. I also noticed that when grounding the shielding, I would get a spark if I had it plugged in. Am I correct in assuming that you should not get a spark from the shielding copper?
Does anybody know what is causing this? Would heavier shielded cable fix this problem? What are my options?