This should fairly easy to find. Don't have to leave the trail. Thats if everyone returns it EXACTLY where it was hidden and no moving it.
Hopefully we can provide you with some cache names that'll help you with your "Alpha Numeric Cache name Challenge"
This is the definition of "zener diode" ---a semiconductor diode across which the reverse voltage remains almost constant over a wide range of currents, used especially toregulate voltage.
