From: BobEngelhardt@comcast.net   
      
   jurb & default - thanks for your replies.  I will go with a relay, but I   
   did find an interesting transistor solution.  It uses 2 serial MOSFET's   
   head-to-head (or "back-to-back", or "anti-serial") with a common gate   
   signal.  When one MOSFET is on, the other is conducting through its body   
   diode.   
      
   This is appealing for it's elegance, but also for the good MOSFET   
   availability, they can be driven with logic, reliable, small, ... .  But   
   the relay is fail-safe - NC contacts conduct even with no power to the   
   logic.   
      
   Thanks again   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)