I sell the cold cathodes, I am sorry you went to zx mods.....lol anyways yes they should get a bit hot, nothing extreme like what you said though...do you let the thing run 24/7 it should get warm, but the name "cold" cathodes is due to the technology no tthe actaully meaning of it being cold.....hey if you are in need i do all cathodes and leds and el wire....
mail me at:
emp.destinee@lvcm.com