there is still quite a bit of neon in my area that people want maintained, and there is only one sign company in my area that works on it and they have made alot of people mad so they call the other closest company that works on neon which is 50 miles away. Today I checked some neon ballasts for line voltage, but I dont have any way to check the load side, I tested the tubes with a gas tube tester and think I found the bad tubes, but I still dont know for a fact that the ballasts are good. and I dont even know for a fact that the ballasts are the correct size in the first place, I just want to know more about it....