Some high end amps, & receivers, as well as rear projection
T.V.'s have diodes to give visual indication that a certain part
of the circuit is working, & has B+ power. Rono.


"JR North" wrote in message
...
I know all diodes actually emit photons, but this tiny glass Zener is
the first one Iv'e seen actually glowing LED red. Is it bad?
JR

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