OK I reread this and I could have been clearer. The series resistor and LED
are in parallel with the Zener. Sorry for the ambiguity. 

-----Original Message-----


If you can tolerate the voltage drop and the current is less than a few amps
why not install a 2 or 3 Volt Zener in the line and add a resistor and LED
in series with it? 2 added parts and even a power Zener is under $.25.

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