>What you are attempting is unsafe, expensive and trouble prone.   
      
   For him.   
      
   If I remember right, for the hard of hearing they used to have a doodad you   
   stick on your phone and when it rings it lights a light. Probably can't get   
   them anymore but the thing is while I could do it right dealing with the   
   mains, I doubt the OP can.   
      
   So the best way to proceed is to detect the noise, right at the box. A cheap   
   piezo mic will do. It can drive whatever, even pick up the sound and put it on   
   the wire.   
      
   Using the mains, well first of all you got a whole bunch more rules dealing   
   with that. Second of all you still need something to feed off it. This is all   
   easier with low voltage.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)