That still could be a lot of current.

  Paul Lamar

  Paul,

The weight is insignificant.  Robust is the name of the game.

Mark

It sounds like a clamping diode is what you installed. The size is not that
important, just that it releases the induced current when the starter circuit
is opened. I have trouble understanding why the "B" board could get wiped out
and not the "A" board.

Dale Davies