 a stretch.  Some devices can overheat
   if they're energized continuously for more than a few seconds, especially
   the large solenoids used in standard pinball machine assemblies - replay
   knockers, jet bumpers, etc.  For such devices, you can set up a protective
   timer that limits the full-power time that's allowed for a given port,
   reducing the power to a lower level when the timer expires.  We call this
   "flipper logic", because it's the same strategy that a lot of real pinball
   machines u