Bulb Out Indicator circuit
Jeff,
Putting a small 120v bulb in series as an indicator will work but
everything else on the circuit must be in series as well. Just like old
Christmas tree lights, if one bulb fails then none of the other bulbs well
work. If you have the indicator in series and the other bulbs in parallel
then the indicator will remain lit until all of the other bulbs fail.
Dave M.
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